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V.S.W.R. meter Introduction VSWR. Forward and reflected power direct digital readout, without any calibration. Maximum measurable power range up to 120W. low insertion loss (0.3 decibels or less) structure allows it to be permanently connected. Build in Frequency counter . All Funtion display ( Frequency Counter ,Powe SW-28VU 125-525MHz SW-28HF 1.5-60MHz SWR & Power Meter This S.W.R. & Power meter is a highly accurate RF meter for measuring Forward Power, Reflected Power, and V.S.W.R. Main Features: · O-LED meter display for easy reading. · Forward RF power readings, switchable to indicate either average power. · Reflected RF power readings. · V.S.W.R. ratios. · Convenient control for easy operation. Manual Wholesale Quotation Shopping SURECOM SW-28 SWR & Power Meter Instruction Features: - According to the fitting algorithm of the characteristics of the detector diode, coupled with the dual-reference segment detection, the accuracy in the power range of 0-120 watts is better than 5%. - 5 kinds of interface display methods, choose according to your preferences , one-click switching. - High-speed average detection method, real-time efficiency display. - Buzzer alarm when a standing wave is greater than 2.0. - Built-in lithium battery, which can be used for more than 100 hours on a single charge. - Multi-function buttons make it more fun to use, reserve space for adding functions in the future and provide an additional interactive method. Parameters: Frequency range: 1. 5-60MHz (SW28HF) Frequency range: 125-525 MHz (SW28VU) Power measurement range: 0 -120W Standing wave measurement range: 1.0:1-19.99:1 Insertion loss: <0.12dB Insert standing wave: ≤1.02 Measurement accuracy: better than ±5% Standing wave alarm: ≥3.0 (with close function) RF interface type: SO239 Display content: forward power; standing wave; antenna power; efficiency. Power supply: built-in rechargeable lithium battery or USB type-C Power off power consumption: <0.1uA Data communication: USB type-c Overall size: 88mm (W)*40 mm(H)*80mm(D) (excluding protruding parts) A simple introduction to use: - Long press to switch the machine, short press to switch the display interface, double click to switch the standing wave alarm; - There are 5 kinds of display interfaces in total, which are automatically saved and automatically recalled the next time you start up. - The red light is displayed when charging, and the light is off when fully charged. Explanation of Features: 1. Power Switch. 2. 0.96" OLED Display. 3. Menu. 4. Peak/Avg or Enter ( SW-28HF only ), Enter (SW-28VU only) 5. Charger LED 6. 5V Charger in Type -C. 7. ANT Connector: Coax connector to 50 ohm antenna system. 8. TX Connector: Coax connector to transmitter 50 ohm RF output. 9. Model No.Detail & Work Frequency Range. SW-28HF explanation of display 1. Model No. 2. Battery Level 3. Forward watt data 4. Forward watt data 5. Version No. 6. S.W.R.data 7. Reflected watt Menu: 1. MODE: Power on by Avg. /Peak 2. BEEP: ON/OFF 3. AUTORESET: OFF ~30sec. 4. EXIT 5. SAVE & EXIT SW-28 VU explanation of display 1. Model No. 2. Battery Level 3. Forward watt data 4. Forward watt data 5. Version No. 6. S.W.R.data 7. Reflected watt 8. A(analog) ,D(DMR) Menu: 1. BEEP: OFF / SWR> 3~9 2. AUTO RESET: OFF ~ 15 sec. 3. ADJ. WATT : + - 99 (long press Enter for + - ) 4. EXIT 5. SAVE & EXIT How to Use : The S.W.R.meter is connected between the r adio (TX) and the antenna, as close as possible to the transceiver (use a cable of max. 40 cm like Test Jumper. 1)Check all connections. 2)Press the key of the microphone PTT to pass into the transmission and keep it in this position. 3)Read data of S.W.R. / Forward watt / Reflected watt What is a high SWR reading? 1.5 -> 2.0. Your antenna is acceptably tuned and should work fine. 2.0 -> 3.0. Your SWR reading is slightly high, it shouldn't damage your radio, but you should try and tune your antenna to bring down your SWR reading. Above 3.0 or more. Your antenna isn't tuned acceptably and could damage your radio. If you have related videos, please share with us, please contact us

POC ACCESSORY Accessories empower409PTT Zello users to talk safely behind the wheel and clearly in loud environments. All accessories come with dedicated push-to-talk buttons.We have tested them all, and are confident that they are compatible with our push-to-talk apps....... SA160 Technical Parameter ● Measurement Frequency: 132-173 / 200-260 / 400-519MHz ● Display: 2.2 inch TFT (320 x240) ● RF Output: 1-1.15V (±5-10db) ● Span width: 0.54MHz /1.35MHz /2.7MHz /5.4MHz /10.8MHz /27MHz / 54MHz / 108MHz / 216MHz / 432MHz ● Port SWR: < 1.1 ● Display: 2.2inch TFT (320 x240) ● Size: 70mm x 120mm x 25mm ● Weight: 172 grams Read More SA-250 Technical Parameter ● Measurement Frequency: 132-173 / 200-260 / 400-519MHz ● Display: 2.2 inch TFT (320 x240) ● RF Output: 1-1.15V (±5-10db) ● Span width: 0.54MHz /1.35MHz /2.7MHz /5.4MHz /10.8MHz /27MHz / 54MHz / 108MHz / 216MHz / 432MHz ● Port SWR: < 1.1 ● Display: 2.2inch TFT (320 x240) ● Size: 70mm x 120mm x 25mm ● Weight: 172 grams Read More SA-350 Technical Parameter ● Measurement Frequency: 132-173 / 200-260 / 400-519MHz ● Display: 2.2 inch TFT (320 x240) ● RF Output: 1-1.15V (±5-10db) ● Span width: 0.54MHz /1.35MHz /2.7MHz /5.4MHz /10.8MHz /27MHz / 54MHz / 108MHz / 216MHz / 432MHz ● Port SWR: < 1.1 ● Display: 2.2inch TFT (320 x240) ● Size: 70mm x 120mm x 25mm ● Weight: 172 grams Read More MINI1300 Specification: Frequency Range: 0.1-1300MHz HF/VHF/UHF contiunous coverage In/Out Impedance: 50 Measurement Parameters: SWR, R, +Jx, -Jx, |Z|, Returnloss Measurement Mode: Single point measurement, Scanning (Frequency Sweep), and TDR Mode SWR MeasureMent Range: 1.0-1999（Single Point Mode), 1.0-20.0 (Scan Mode) Display Modes: Numerical display, curve display, simith chart Connector Type: UHF N-type connector VNA:SMA SMA OPEN-SHORT-LOAD Calibration Kit x 1 LCD size: 480x272 4.3" TFT LCD display Touch Screen Type: Capacitive Read More

Terminal of a circuit (such as an amplifier) or an electrical output port, components, parts, or means for receiving electrical power for the DUMMY LOAD. Basic requirements: impedance matching and withstand the power I'm an image title Describe your image here. I'm an image title Describe your image here. I'm an image title Describe your image here. I'm an image title Describe your image here. I'm an image title Describe your image here. I'm an image title Describe your image here. I'm an image title Describe your image here. I'm an image title Describe your image here. I'm an image title Describe your image here. I'm an image title Describe your image here. I'm an image title Describe your image here. I'm an image title Describe your image here. I'm an image title Describe your image here.

Features:  1 V.S.W.R. Forward  power direct digital readout, without any calibration.  2 V.S.W.R. REW  power direct digital readout, without any calibration.  3. Maximum measurable power range up to 100W.  4. 3 seconds check your antenna SWR , also check your radio RF power watt. 5.Easy to install handheld Radio  SW-33PLUS SURECOM SW-33 PLUS 125-525 Mhz Mini Digital VHF/UHF Power & SWR Meter Features: 1. V.S.W.R. Forward power direct digital readout, without any calibration. 2. V.S.W.R. REW power direct digital readout, without any calibration. 3. Maximum measurable power range up to 100 Watt. 4. 3 seconds check your antenna S.W.R. , also check your radio RF power watt. 5. Easy to install handheld Radio Manual Wholesale Quotation Shopping Features function Push red button and hold 2 sec. to" Power on " and "ALL "mode " LCD display show Push red button -" 90° "mode , LCD display show Push red button -" 180° "mode, LCD display show Push red button -" V.S.W.R. "mode ,LCD display show Push red button -" FW POWER "mode ,LCD display show Push red button and HOLD -" POWER OFF 1.1 How to use Power meter (forward) Push red button -switch on Push red button at four times to mode "POWER meter " ,LCD display show Connect the SMA (mark TX) to Radio output . Connect the SMA to DUMMY Load Caution : Please use correct dummy load , High power will damage the dummy load. 1.2 How to measure SWR? All forms of SWR meters measure SWR, standing wave ratio on a transmitter feeder. Using SWR meter is relatively easy, but one should be able to interpret the results when using it. In general, VSWR and SWR are the same. When using VSWR meters to measure the the performance of a new antenna, always one should prefer to use up to 3W power and a clear channel. The following procedure can be used to use the meter. Push red button at two times to mode "V.S.W.R. meter " ,LCD display show Connect the SMA (mark TX) to Radio output . Connect the SMA (mark Ant) to ANTENNA When the the LCD show 1.00 to 1.50 , 1.0~ 1.5:1 mean the antenna is suit the frequency. When the the LCD show 1.50 to 3.00 , 1.5~ 3.0:1 mean the antenna is not good suit the frequency. When the the LCD show 5.00 to 19.99 ,5.0~19.99:1 mean the antenna is not suit the frequency. The VSWR meter is connected in the feeder from the transmitter to antenna. For the feeder convenience, SWR meter is located at the transmitter end of the feeder. This helps to monitor the actual VSWR values. One should know, where exactly SWR can be measured. There is always some degree of feeder loss, which has a major effect on the VSWR readings. Feeder loss absorbs power in both directions. When the reflected signal is reduced, there is a high level of feeder loss. The reflected signal gets reduced as a forward signal to the antenna, later it’s reflected back to the transmitter. Since the signal is reduced on its way to the transmitter, an antenna with poor match and high VSWR will be fine at the transmitter. Hence, when a feeder that induces a high loss is used, VSWR is good at the transmitter, but at the antenna, it may be poor. Package Contents 1x SW-33 PLUS SWR/POWER METER 1x English User Manual 1x USB charger cable (Not include Power adaptor) 1x SMA male to SMA male Adaptor 1x SMA male to SMA female Adaptor 1x SMA female to BNC female Adaptor 1x SMA male to BNC male Adaptor 1x 5-20W DUMMY LOAD for testing / other type of 5W dummy load for testing (random) SWR Formulas and Calculations VSWR can be calculated from various parameters. By definition, VSWR is given as ratio of maximum voltage on the line to the minimum voltage. The same can be expressed in terms of forward and reflected wave voltages. If you have related videos, please share with us, please contact us

BLUETOOTH SPEAKER MIC 41-92A/B Surecom waterproof Bluetooth Speaker Microphone PTT for Android Phone POC walketalkie Main features: 3 hours to complete the charge standby time about 100 hours support mobile phone, intercom and music automatic switching support volume control extra 3.5mm plug headphones support Bluetooth A2DP music playback Function: for Andriod Phone / I-OS /POC App : Zello , 409PTT MORE INFORMATION 41-99 Bluetooth Ham Radio PTT Speaker Mic for Android Walkie Talkie for ZELLO A certified push-to-talk hardware created specifically for Zello Use a dedicated hardware button for push-to-talk. Listen clearly in noisy environments through a headset or more powerful speaker. Keep your phone locked and safe in your pocket, or talk and listen while using other apps. Your Android devices need either a data plan or a WiFi connection. VISIT WEBSITE 41-101 Radio Zello Phone Dual PTT Mix Talk Bluetooth Speaker Microphone Functional Description: Telephone processing: Support mobile hands-free functions, mobile phones, intercom and music automatic switching Support voice dial-up Last code replay Telephone answering, reject and hang up modulation A2DP music: Support Bluetooth A2DP music playback Can enjoy mobile stereo music or other A2DP music sources Using the Bluetooth AVRCP protocol, the remote music playback can be suspended, the last or the next Independent volume control button Volume storage VISIT WEBSITE 41-105 Bluetooth Ham Radio PTT Speaker Mic for Walkie Talkie VISIT WEBSITE

SR-629 The SR-629 is a multi-function and cheaper device that connects any handheld or mobile radio. By equipment and so on our assemble the build, the new generation trunk-line board,the internal structure design are finer, the outward appearance is more attractive. Beside scan provide a the basic repeater function which has following the receiver transmitter,furthermore has the Simple connection, provides the more ideal 2-way radio conversation region for you, causes you maintains the relation in the bigger operating region. Major Features Works with most popular handheld radios Multi- LED display 2 radio status , And controller Battery Level Real time duplex repeater with link radio Allows user to change the DTMF remote control password by radio Operates on both build-in Li-ion battery 72 hours long life operation External DC 5V power supply Professional manufacturer low power consumption Two mode select Manual Wholesale Quotation Shopping When the radio units are connected, the received signal on a radio unit will be real time transmit on the other radio unit. e.g. VHF/VHF, UHF/UHF, VHF/UHF or UHF/VHF modes Mode 1: When Radio A is RX, control to Radio B will TX. When Radio B is RX, control no Funtion Mode 2 : When Radio A is RX, control to Radio B will TX. When Radio B is RX, control to Radio A will TX. The purpose can be done in two different places and using different frequency bands intercom, through our mutual communication relay station. This is a radio cross band duplex repeater controller. It is an easy of operation and cost effective and highly flexible platform for setting up bi-direction cross band duplex repeater with mobile radio and handheld radio. The SR-629 has 2 audio ports input and out , they are used to connect with mobile and handheld radio. Multi-LED display 2 of radio status , and build-in battery Level Package Contents 1x SR-629 Duplex Repeater Controller (Not include repeater cable) 1x English User Manual 1x USB charger cable 1x USB AC adapter 100-240V　 If you have related videos, please share with us, please contact us

ANTENNA ANALYZER An antenna analyzer ' (also known as a noise bridge, RX bridge, SWR analyzer, or RF analyzer) is a device used for measuring the input impedance of antenna systems in radio electronics applications. SA160 Technical Parameter ● Measurement Frequency: 132-173 / 200-260 / 400-519MHz ● Display: 2.2 inch TFT (320 x240) ● RF Output: 1-1.15V (±5-10db) ● Span width: 0.54MHz /1.35MHz /2.7MHz /5.4MHz /10.8MHz /27MHz / 54MHz / 108MHz / 216MHz / 432MHz ● Port SWR: < 1.1 ● Display: 2.2inch TFT (320 x240) ● Size: 70mm x 120mm x 25mm ● Weight: 172 grams MORE INFORMATION SA-250 Technical Parameter ● Measurement Frequency: 132-173 / 200-260 / 400-519MHz ● Display: 2.2 inch TFT (320 x240) ● RF Output: 1-1.15V (±5-10db) ● Span width: 0.54MHz /1.35MHz /2.7MHz /5.4MHz /10.8MHz /27MHz / 54MHz / 108MHz / 216MHz / 432MHz ● Port SWR: < 1.1 ● Display: 2.2inch TFT (320 x240) ● Size: 70mm x 120mm x 25mm ● Weight: 172 grams VISIT WEBSITE MINI1300 Specification: Frequency Range: 0.1-1300MHz HF/VHF/UHF contiunous coverage In/Out Impedance: 50 Measurement Parameters: SWR, R, +Jx, -Jx, |Z|, Returnloss Measurement Mode: Single point measurement, Scanning (Frequency Sweep), and TDR Mode SWR MeasureMent Range: 1.0-1999（Single Point Mode), 1.0-20.0 (Scan Mode) Display Modes: Numerical display, curve display, simith chart Connector Type: UHF N-type connector VNA:SMA SMA OPEN-SHORT-LOAD Calibration Kit x 1 LCD size: 480x272 4.3" TFT LCD display Touch Screen Type: Capacitive VISIT WEBSITE SA-350 Technical Parameter ● Measurement Frequency: 132-173 / 200-260 / 400-519MHz ● Display: 2.2 inch TFT (320 x240) ● RF Output: 1-1.15V (±5-10db) ● Span width: 0.54MHz /1.35MHz /2.7MHz /5.4MHz /10.8MHz /27MHz / 54MHz / 108MHz / 216MHz / 432MHz ● Port SWR: < 1.1 ● Display: 2.2inch TFT (320 x240) ● Size: 70mm x 120mm x 25mm ● Weight: 172 grams VISIT WEBSITE ANTENNA ANALYZER クイックビュー SURECOM SW-112 SO239 VSWR METER SW112 価格 $24.00 クイックビュー SURECOM Mini1300 0.1-1300MHz SWR Meter Antenna Analyzer 価格 $255.50 クイックビュー Antenna Analyzer SA250 132-173 200-260 400-519MHz 価格 $175.00 クイックビュー SURECOM ANTENNA ANALYZER SA-160 0.5-60MHz Colour Graphic 価格 $195.00

The standing wave ratio meter, SWR meter, ISWR meter (current "I" SWR), or VSWR meter (voltage SWR) measures the standing wave ratio (SWR) in a transmission line.[a] The meter indirectly measures the degree of mismatch between a transmission line and its load (usually an antenna). Electronics technicians use it to adjust radio transmitters and their antennas and feedlines to be impedance matched so they work together properly, and evaluate the effectiveness of other impedance matching efforts. V.S.W.R / POWER METER Working of Standing Wave Ratio (SWR) Meters The standing wave ratio meter, SWR meter, ISWR meter (current "I" SWR), or VSWR meter (voltage SWR) measures the standing wave ratio (SWR) in a transmission line.[a] The meter indirectly measures the degree of mismatch between a transmission line and its load (usually an antenna). Electronics technicians use it to adjust radio transmitters and their antennas and feedlines to be impedance matched so they work together properly, and evaluate the effectiveness of other impedance matching efforts. The actual impedance of any load is the reactance and resistance together. But, the SWR meter cannot measure both, instead measures the mismatch. To measure the impedance, more complex radio frequency measuring devices must be used. For the SWR meter readings to be accurate, the device must be matched on to the line impedance. Any transmission line will have a certain loss. When this loss occours, the reflected signal will be attenuated when it travels back along the line. Thus, for the SWR meter to be efficient, it must be connected very near to the antenna and further away from the load. The value of SWR will be more when it is nearer to the load. When using a passive type SWR meter it is always better to remove the device from the line. As these devices have diodes and other harmonics producing components, intermodulation may occour. SW-102D SURECOM SW-102VU VHF/UHF Power & SWR Meter DMR ready Technical Parameter ● Measurement Frequency: 125-525MHz ● Power Input:120W ● Display: LCD ● Accuracy : +- 5% ● Port SWR: < 1.1 ● Battery: 3.7V Li-ion ● SW102VU-S Input connect: SO239(SL16) ● SW102VU-N Input connect: N ● Size: 76mm x 77mm x 35mm ● Weight: 220 grams Read More SW-112VU/HF SURECOM SW-112VU 125-525MHz SURECOM SW-112 HF 1.5 -70 Mhz POWER & SWR Meter Technical Parameter ● Power Input:120W ● Display: METER ● Accuracy : +- 10 % ● Port SWR: < 1.1 ● Meter Lamp Dc in : 5-12V ● Input connect: SO239 ● Size: 74mm x 55mm x 89mm ● Weight: 220 grams Read More SW-102HF SURECOM SW-102HF 1.5 -70 Mhz POWER & SWR Meter Technical Parameter ● Measurement Frequency: 1.5-70MHz ● Power Input:120W ● Display: LCD ● Accuracy : +- 5% ● Port SWR: < 1.1 ● Battery: 3.7V Li-ion ● Input connect: SO239 ● Size: 76mm x 77mm x 35mm ● Weight: 220 grams Read More SW-102VU- N/S SURECOM SW-102VU VHF/UHF Power & SWR Meter Technical Parameter ● Measurement Frequency: 125-525MHz ● Power Input:120W ● Display: LCD ● Accuracy : +- 5% ● Port SWR: < 1.1 ● Battery: 3.7V Li-ion ● SW102VU-S Input connect: SO239(SL16) ● SW102VU-N Input connect: N ● Size: 76mm x 77mm x 35mm ● Weight: 220 grams Read More SW-28 VU SURECOM SW-28 VU 125-525 Mhz VHF/UHF Power & SWR Meter Technical Parameter ● Measurement Frequency: 125-525MHz ● Power Input:120W ● Display: LCD ● Accuracy : +- 5% ● Port SWR: < 1.1 ● Battery: 3.7V Li-ion ● Input connect: SO239(SL16) ● Size: 76mm x 34mm x 35mm ● Weight: 220 grams Read More SW-28 HF SURECOM SW-28HF 1.5 -60 MHz POWER & SWR Meter Technical Parameter ● Measurement Frequency: 1.5-60MHz ● Power Input:120W ● Display: LCD ● Accuracy : +- 5% ● Port SWR: < 1.1 ● Battery: 3.7V Li-ion ● Input connect: SO239 ● Size: 76mm x 34mm x 35mm ● Weight: 220 grams Read More SW-32VU/HF SURECOM SW-32VU 125-525 Mhz VHF/UHF Power & SWR Meter Technical Parameter ● Measurement Frequency: SW32-UV 125-525MHz SW32-HF 1.5-60MHz ● Power Input:100W ● Display: LCD ● Accuracy : +- 5% ● Port SWR: < 1.1 ● No Battery Design ● Input connect: N / SO239 ● Size: 76mm x 77mm x 60mm ● Weight: 320 grams Read More SW-29 VU /HF SURECOM SW-29 VU 125-525 Mhz VHF/UHF Power & SWR Meter Technical Parameter ● Measurement Frequency: 125-525MHz ● Power Input:100W ● Display: LCD ● Accuracy : +- 5% ● Port SWR: < 1.1 ● Battery: 3.7V Li-ion ● Input connect: SO239(SL16) ● Size: 76mm x 34mm x 35mm ● Weight: 260 grams Read More SW-33MARKII SURECOM SW-33 markII 125-525 Mhz Mini Digital VHF/UHF Power & SWR Meter Technical Parameter ● Measurement Frequency: 125-525MHz ● Power Input:100W ● Display: LED ● Accuracy : +- 5% ● Port SWR: < 1.1 ● Battery: Li-ion 500mah ● Input connect: SMA female ● Size: 25mm x 25mm x 60mm ● Weight: 160 grams Read More SW-33PLUS SURECOM SW-33 PLUS 125-525 Mhz Mini Digital VHF/UHF Power & SWR Meter Technical Parameter ● Measurement Frequency: 125-525MHz ● Power Input:100W ● Display: LCD ● Accuracy : +- 5% ● Port SWR: < 1.1 ● Battery: Li-ion 500mah ● Input connect: SMA female ● Size: 25mm x 25mm x 60mm ● Weight: 160 grams Read More SF-20 SURECOM SF-20 100-525 Mhz Mini Digital VHF/UHF Power Meter Technical Parameter ● Measurement Frequency: 100-525MHz ● Power Input: 20W ● Frequency Counter:20-999MHz ● Display: LED ● Accuracy : +- 5% ● Port SWR: < 1.1 ● Battery: Li-ion 500mah ● Input connect: BNC male ● Size: 25mm x 25mm x 87mm ● Weight: 220 grams Read More SW-111 SURECOM SW-111 27-30 Mhz SWR Power Meter Technical Parameter ● Measurement Frequency: 27-30MHz ● Power Input:100W ● Input connect: SO239 ● Size: 84mm x 59mm x 52mm ● Weight: 260 grams Read More SW-114 SW-114 CB 27-30 Mhz SWR /Power Meter If you're looking for an SWR meter that can tune your antenna and measure field strength, this dual window 100-watt CB SWR Meter is a great choice! It measures up to 100 watts and has two separate windows: one for SWR reading and the other for power measurement. Technical Parameter ● Measurement Frequency: 27-30MHz ● Power Input:100W ● 2 separate windows ● Input connect: SO239 ● Size: 120mm x 60mm x 65mm ● Weight: 410 grams Read More SW-33 SURECOM SW-33 125-525 Mhz Mini Digital VHF/UHF Power & SWR Meter Technical Parameter ● Measurement Frequency: 125-525MHz ● Power Input:100W ● Display: LED ● Accuracy : +- 5% ● Port SWR: < 1.1 ● Battery: Li-ion 500mah ● Input connect: SMA female ● Size: 25mm x 25mm x 60mm ● Weight: 160 grams Read More SWR METER クイックビュー SURECOM SW-28 120W Short Wave Standing Wave Meter SWR /Power Meter 価格 $45.00 クイックビュー SW-102D UV 125-525MHz V.S.W.R / POWER METER 価格 $65.00 クイックビュー SURECOM SW-112 SO239 VSWR METER SW112 価格 $24.00 クイックビュー Surecom SW102 Ground Plate 価格 $9.50 クイックビュー NEW SURECOM SW-32VU 125-525MHz 100WATT SWR & Power Meter 価格 $75.00 クイックビュー SURECOM SW-114 27-30MHz HF SWR/RF/Field Strength Test Meter 価格 $28.50 クイックビュー SURECOM SW-111 100 Watt SWR / POWER Meter 価格 $30.00 クイックビュー SW-33PLUS VHF/UHF 100W POWER & S.W.R. METER 価格 $38.00 クイックビュー SW-102 125-525MHz connector V.S.W.R. POWER METER 価格 $55.00 クイックビュー SW-33 mark II VHF/UHF 100W POWER & S.W.R. METER 価格 $34.50 クイックビュー NEW SW-102HF 1.5-70MHz SO239 connector V.S.W.R. POWER METER 通常価格 $75.00 セール価格 $65.00

SA-250 SA-250 antenna analyzer designed for testing, checking, tuning or repairing antennas and antenna feed lines.Mainly, these are S.W.R. (Standing Wave Ratio) and impedance measurement instruments (vector impedance analyzers).Easy-to use measurement modes. make SURECOM attractive for professionals and hobbyists. It is important that graphical display of various parameters over a wide frequency range is a key feature of these analyzer which significantly reduces the time required to adjust an antenna.　 Main Features: ■ 2.2 ” precision LCD screen,High-lumen LCD brightness, easy to read in direct sunlight ■ Heavy duty Aluminum enclosure,strong anti-interference ability. ■ Very compact and convenient for field use ■ Built-in rechargeable Li-ion battery ■ Full Band control (No need select Band ) ■ Easy setup, only four control buttons with convenient on-screen soft menus ■ Constant Battery Status Indicator and Auto Shut-off ■ Built-in timer shows elapsed time when unit is turned on ■ High efficiency IC, low power consumption, the longest working hours ■ More choice measurement frequency Span . ■ One button quick scan mode (V1,V2,U) or 3 band by full screen. ■ Auto marker the Best s.w.r. level reference Manual Wholesale Quotation Shopping Specifications: Model No. SA-250 Frequency Range: 132-173MHz / 200-260MHz / 400-519MHz Connector: SMA-Female (50 OHM) RF Output Power: 1-1.5V (5 - 10dB) Frequency Step: 0.1 / 1 / 10 / 100 / 1000KHz V.S.W.R. Range: 1.00-19.99 Deviation: ±0.1 ZRX Range: 0-99.9 Build-in Battery : 3.7V 900mah ,Li-ion 14500 Voltage input : DC5V> 500mA Frequency stability: < 0.5PPM Span width: 0.54MHz /1.35MHz /2.7MHz /5.4MHz /10.8MHz / 27MHz / 54MHz / 108MHz / 216MHz / 432MHz Charger indicator: Two-color LED Hidden (when not charging) there are three instructions state: 1, charging (red) ; 2, charging is completed (green) 3, Battery fault (flashing) Charger Plug: Standard Micro USB connector Size: 70 x 120 x 25 mm Colour Display: TFT LCD 320 x 240 pixels Weight: 172g Power Source: Built-in 3.7V, 900-mAh ,Size 14500 of Lithium battery. Charge Controller: Smart charger, LED charging-status indicator Voltage Monitor: On-screen DVM, plus battery condition icon Charger Source: Any USB port, analyzer accepts Micro-USB plug Power Savers: Auto-off timer, Auto Run/Stop RF generator control Interface RF Connector: SMA-female , (optional PL-259 ,N connector need adapter) Battery Charge Connector: Micro-USB Screen: 2.2 inch high-output color TFT Function Keys : 4 button, with on-screen (soft-menu) identifiers Tuning: Rotary encoder with press-in tuning-step choice Weight and Dimensions Case: Aluminum metal Size: 2.8" wide x 4.0" high x 1.0" deep (7 cm x12 x 2.5 cm) Weight: 6.1 oz (0.172 kg) PACKAGE CONTAIN: 1 x SURECOM SA250 (ENGLISH VERSION) Colour Graphic Antenna Analyzer 1 x English User"s Manual 1 x Mirco Usb Charger Cable 1 x AC Adapter 100-240V (Depends on your country) 1x SMA- SO239 adaptor 1x SMA to BNC Adaptor 1x SMA to SMA adaptor SA-250 How to Use 1.0 Turn on and Turn off the power Turn on the power, Press and hold White botton when the dot disappear from left up angle ,. top Menu appeared on the screen. Turn off the power, You have 2 method : a) On Top Menu page ,Press and hold the White [F1 ] botton 5 second . b) On Top Menu page , Rotary encoder on "Power off", Press the [F2 Enter] 1.1Function Select (Please see Pic.1) You can turn the knob select you want function and press [F2.Enter] botton . 2.0 ANTENNA TEST EXAMPLES (Scan mode): (Please see Pic.2) In the Top Menu screen: Rotary encoder on "Scan", Press the [F2 Scan] to frequency mode measurement button, enter Scan (scan mode) screen. Press [F.2 scan ],button to start the scan operation. During scanning, in order to ensure measurement accuracy, each frequency will stay for short while. one scanning cycle will take about 1-2 seconds. Once SCAN is done, it will enter ”Present” mode (result) screen You have results on the screen : Show the SWR curve only (because default setting SWR curve only , Zx curve, Rs curve, jx curve Disable) You can Enable other curve on the screen: On Top Menu page, Rotary encoder on "Zx", Press the [F2 Enter] to enable . (Please see Pic.1) Other cure will Disable when Power Off , If want enable in the future, Rotary encoder on "Save", Press the [F2 Enter] to save setting .(Please see Pic.1) 2.1 Move the curso marker: (Please see Pic.3) View the scan frequency point on the curve on each scan of the specific parameters of the measurement results. Press the [F3.View ] button to start the view operation mode. rotary encoder ,the white triangle curve marker is move Dot scale will display on screen, Press bottom change the Dot scale,You have 3 options of Dot scale mode for choose, [Dot =x1][Dot =x10][Dot= x25] . SWR Full scale will display on screen,Press bottom change the graphically plot SWR,You have 3 options scale mode for choose, [SWR=x2 ][SWR= x 0.5][SWR=x1] . 2.2 Quick 1 start Scan mode: (Please see Pic.4) Quick view the scan frequency point on the curve on each scan Press the button [Quick 1 ] to start the Quick 1 operation mode .You have 3 options scan mode for choose . Press the button [F1 Scan V1 ] . 132 to 174 MHZ can of the specific parameters of the measurement results. Press the button [F1 Scan V2 ]. 200 to 260 MHZ can of the specific parameters of the measurement results. Press the button [F1 Scan U ] . 400 to 519 MHZ can of the specific parameters of the measurement results. 2.3 Quick 2 start Scan mode: (Please see Pic.5) Quick view the Full band scan frequency point on the curve on each scan Press the [Q2 ] button to start the Quick 2 operation scan mode. Press the [ScanFull ] button to start the 3 BAND (132-174,200-260,400-519MHz )Scan operation mode. the measurement results. after you have 2 options mode for choose . Press the [Scan2 Mk ] button to read the best SWR Yellow triangle curve marker .( operation Span 108MHz) Press the [MoveCur ] button ,Nearby the best SWR Yellow triangle curve marker, Move right hand side .Press again move left hand side. 3.0 ANTENNA TEST EXAMPLES (Single mode): (Please see Pic.7) In the Top Menu screen: Rotary encoder on "Single", Press botton "F2" single frequency mode measurement button, enter single (single scan mode) screen. a) Rotary encoder potentiometer enter the center frequency, the specific reference to the above operation "SCAN" sweep measurement mode descriptions. b) Press the ”F2 scan", to start the scan for one time . Single frequency mode provides a single frequency impedance measurement, the measured frequency of the basic parameters are displayed on the screen. And to indicate the form of bars and numbers displayed on the screen quickly. The scanning one time , will stop, until you press the F2 Scan button or rotary encoder potentiometer enter the center frequency. In this mode, it can be used as an accurate signal generator, please refer to RF out. If you have related videos, please share with us, please contact us

SW-102 SWR Meter SS10/SS11 Field Strength Meter SW-33 SWR Meter SW-28 SWR/Power Meter SW-111/SW-114 Power Meter SF-401/SF-103 Frequency Counter SR-112/SR-328/SR-628/SR-629 Repeater Contoller SW-112 SWR Power Meter SW-32 SWR Power Meter

Company Description SURECOM LIMITED is a manufacturing department of a professional enterprise providing two-way radio accessories. For years, we have been committed to developing products according to domestic and overseas markets' demands. Our full range of products include repeater and radio equipment. We also provide customized solutions for customers depending on their requirements. Our products have been exported to Europe, America and Southeast Asia, enjoying high popularity. We always persist in new and unique development and strictly follow the quality standard. Our materials are selected through selection process. As a leading department with innovative technology, we are proud of offering good quality products, low prices and better selections, as well as prompt and reliable services to our customers. IN THE NEWS I AM A PARAGRAPH I'm a paragraph. Click here to add your own text and edit me. It’s easy. Just click “Edit Text” or double click me and you can start adding your own content and make changes to the font. Feel free to drag and drop me anywhere you like on your page. I AM A PARAGRAPH I'm a paragraph. Click here to add your own text and edit me. It’s easy. Just click “Edit Text” or double click me and you can start adding your own content and make changes to the font. Feel free to drag and drop me anywhere you like on your page. I AM A PARAGRAPH I'm a paragraph. Click here to add your own text and edit me. It’s easy. Just click “Edit Text” or double click me and you can start adding your own content and make changes to the font. Feel free to drag and drop me anywhere you like on your page. LAST EVENT I'm a paragraph. Click here to add your own text and edit me. It’s easy. Just click “Edit Text” or double click me and you can start adding your own content and make changes to the font. Feel free to drag and drop me anywhere you like on your page. I’m a great place for you to tell a story and let your users know a little more about you. PARTNERS COMPANY NAME I'm a paragraph. Click here to add your own text and edit me. COMPANY NAME I'm a paragraph. Click here to add your own text and edit me. COMPANY NAME I'm a paragraph. Click here to add your own text and edit me.

SS-10 The SS-10 Field Strength Meter is ideal for reading relative field strength from your antenna. It is a compact unit that fits in the palm of your hand and can be taken anywhere. The best part of using it is that you now can tell if your antenna is radiating or not by simply holding the unit near your antenna and adjusting the sensitivity. Also, by taking measurements, you can find out relatively how strong your antenna field is. Operation The SS-10 Field Strength Meter is very simple to use. It requires no power because your antenna field provides the power necessary to run the meter. Simply raise the single whip antenna on your unit, stand several feet away, and adjust the sensitivity knob on the front, it’s that easy. You want to ensure that the whip antenna is parallel with the polarity of the antenna you are reading. Now you can read the relative field strength of your antenna. Features: The appearance is simple and efficient, beautiful and generous. Frequency bandwidth, high sensitivity. 100KHz-3000MHz (with antenna ), please use different frequency antennas to test signals with different frequencies for better effect and sensitivity) The pointer amplitude can be adjusted (to protect the meter) Built-in automatic damping function, which is the buffer function, prevents the needle from swinging too fast and causing damage. Small size, easy to carry, size: 75 x 100 x 64mm (excluding the raised antenna part) Manual Wholesale Quotation Shopping Key Specifications: Test suitable antenna for walkie-talkie use Frequency bandwidth, high sensitivity. 100KHz-3000MHz Measurement Radio Field Strength The pointer amplitude can be adjusted (to protect the meter) Specifications: Model No. SS-10 Frequency Range: 100KHz -3GHz Size without Socket : 75 x 100 x 64mm Antenna (in ) Interface: SMA Female Net Weight : 240g (not include antenna) Package include 1x SS-10 Field Strength Meter 1x SMA MALE UHF Telescopic Antenna 1x English Instructions INTRODUCTION: The SS-10 Field Strength Meter is ideal for reading relative field strength from your antenna. It is a compact unit that fits in the palm of your hand and can be taken anywhere. The best part of using it is that you now can tell if your antenna is radiating or not by simply holding the unit near your antenna and adjusting the sensitivity. Also, by taking measurements, you can find out relatively how strong your antenna field is. Operation The SS-10 Field Strength Meter is very simple to use. It requires no power because your antenna field provides the power necessary to run the meter. Simply raise the single whip antenna on your unit, stand several feet away, and adjust the sensitivity knob on the front, it’s that easy. You want to ensure that the whip antenna is parallel with the polarity of the antenna you are reading. Now you can read the relative field strength of your antenna. Technical Assistance If you have any problem with this unit first check the appropriate section of this manual. If the manual does not reference your problem or your problem is not solved by reading the manual you may call SURECOM Technical Service at 852-54457217. You will be best helped if you have your unit, manual and all information on your station handy so you can answer any questions the technicians may ask. You can also send questions by mail to SURECOM.COM.HK Features: The appearance is simple and efficient, beautiful and generous. Frequency bandwidth, high sensitivity. 100KHz-3000MHz (with antenna ), please use different frequency antennas to test signals with different frequencies for better effect and sensitivity) The pointer amplitude can be adjusted (to protect the meter) Built-in automatic damping function, which is the buffer function, prevents the needle from swinging too fast and causing damage. Small size, easy to carry, size: 75 x 100 x 64mm (excluding the raised antenna part) Instructions for use: Before use, please rotate the "amplitude adjustment" to the left most end. The length of the antenna to be pulled depends on the frequency of the test. It is better to have 1/4 wave as much as possible. The handheld walkie-talkie is about one meter away from the field strength meter. Don't be too close! In order to avoid the signal is too strong to burn the field strength meter! Then press the walkie-talkie PTT button to make the walkie-talkie enter the launch state. At this time, the pointer of the field strength meter should have a signal indication. The stronger the signal, the greater the indication! Amplitude adjustment: If the field strength indicator indicates that the maximum range is exceeded, the "amplitude adjustment" can be adjusted to let the pointer indicate the appropriate position. Method for testing the maximum gain point of an antenna 1. In order to change the frequency conveniently and quickly, you should use the keyboard to set the frequency walkie-talkie manually. 2. Link the walkie-talkie and antenna feeders, place the field strength meter near the antenna (depending on the environment), place it within the vertical radiation angle of the antenna as much as possible, and the antenna planning method is best. 3. Set the frequency of the walkie-talkie, press the launch button, observe the meter reading, and register the meter reading. Then set the walkie-talkie to other frequency points, let the walkie-talkie enter the launch state again, observe the meter reading and then compare the readings of each frequency point! You can know the best frequency/segment of the antenna under test! A typical field-strength meter is shown in Figure 1. This is a simple passive (unpowered) circuit in which radio frequency energy is intercepted by the antenna, rectified to DC, and then used to directly drive the meter. The maximum sensitivity of this circuit is based primarily on several factors: The gain of the antenna: How much of the signal is actually intercepted. The sensitivity of the meter movement being used. The nature of the diodes being used. If you have related videos, please share with us, please contact us

SKT-7900D SURECOM KT-7900D DUAL BAND MINI MOBILE RADIO General specification Frequency Range : VHF:136-174MHz UHF： 400-480MHz Number of channels : 200 Channel spacing : 25KHz、 20K、12.5 Phase lock step step : 2.5KHz、5KHz、6.25 KHz、10 KHz、12.5 KHz、15 KHz、25 KHz Working voltage : 13.8V DC±15% Squelch way : CTCSS、DCS、5Tone、2Tone、DTMF Frequency stability : ±2.6ppm Operat temperature : -20+60℃ Dimension : 98(W)*43(H)*126(D)mm Weight : 448g Manual Wholesale Quotation Shopping PACKAGE CONTAIN: 1 x SURECOM KT-8900D 136-174/220-260/350-390/400-480 MINI COLOR SCREEN MOBILE RADIO 1 x Microphone 1 x Car Power Cable 1 x Fuse 1 x Mounting bracket 1 x Screw 1 x User"s Manual If you have related videos, please share with us, please contact us

27MHZ 40 CH CB radio Commercial and professional mobile radios are often purchased from an equipment supplier or dealer whose staff will install the equipment into the user's vehicles. Large fleet users may buy radios directly from an equipment manufacturer and may even employ their own technical staff for installation and maintenance. MOBILE RADIO S-KT7900D Technical Parameter ● Measurement Frequency: 132-173 / 200-260 / 400-519MHz ● Display: 2.2 inch TFT (320 x240) ● RF Output: 1-1.15V (±5-10db) ● Span width: 0.54MHz /1.35MHz /2.7MHz /5.4MHz /10.8MHz /27MHz / 54MHz / 108MHz / 216MHz / 432MHz ● Port SWR: < 1.1 ● Display: 2.2inch TFT (320 x240) ● Size: 70mm x 120mm x 25mm ● Weight: 172 grams Read More S-KT-8900D Technical Parameter ● Measurement Frequency: 132-173 / 200-260 / 400-519MHz ● Display: 2.2 inch TFT (320 x240) ● RF Output: 1-1.15V (±5-10db) ● Span width: 0.54MHz /1.35MHz /2.7MHz /5.4MHz /10.8MHz /27MHz / 54MHz / 108MHz / 216MHz / 432MHz ● Port SWR: < 1.1 ● Display: 2.2inch TFT (320 x240) ● Size: 70mm x 120mm x 25mm ● Weight: 172 grams Read More S-KT980PLUS SURECOM S-KT-980 Plus Colorful Screen Compact Car Features: 1. Dual Band136~174VHF/400~480UHF Trasceiver 2. Compact and rigid car radio with colorful screen 3. 5Tone 2Tone ANI DTMF function 4. Remote Stun, Remote Kill, Remote Revive 5. High power output 75W on VHF and 55W on UHF 6. External speaker/PTT Specification: General 1. Frequency Range:VHF:136-174MHz UHF:400-480MHz 2. Number of Channel:200 3.Channel Spacing:25KHz 20K 12.5K Read More

SS-11 The SS-11 Field Strength Meter is ideal for reading relative field strength from your antenna. It is a compact unit that fits in the palm of your hand and can be taken anywhere. The best part of using it is that you now can tell if your antenna is radiating or not by simply holding the unit near your antenna and adjusting the sensitivity. Also, by taking measurements, you can find out relatively how strong your antenna field is. Operation The SS-11 Field Strength Meter is very simple to use. It requires no power because your antenna field provides the power necessary to run the meter. Simply raise the single whip antenna on your unit, stand several feet away, and adjust the sensitivity knob on the front, it’s that easy. You want to ensure that the whip antenna is parallel with the polarity of the antenna you are reading. Now you can read the relative field strength of your antenna. Features: The appearance is simple and efficient, beautiful and generous. Frequency bandwidth, high sensitivity. 100KHz-3000MHz (with antenna ), please use different frequency antennas to test signals with different frequencies for better effect and sensitivity) Build-in Battery . The pointer amplitude can be adjusted (to protect the meter) Built-in automatic damping function, which is the buffer function, prevents the needle from swinging too fast and causing damage. Small size, easy to carry, size: 75 x 100 x 64mm (excluding the raised antenna part) Manual Wholesale Quotation Shopping Key Specifications: Test suitable antenna for walkie-talkie use Frequency bandwidth, high sensitivity. 100KHz-3000MHz Measurement Radio Field Strength The pointer amplitude can be adjusted (to protect the meter) Specifications: Model No. SS-11 Frequency Range: 100KHz -3GHz Size without Socket : 75 x 100 x 64mm Antenna (in ) Interface: SMA Female Net Weight : 240g (not include antenna) Package include 1x SS-11 Field Strength Meter 1x SMA MALE UHF Telescopic Antenna 1x English Instructions INTRODUCTION: The SS-11 Field Strength Meter is ideal for reading relative field strength from your antenna. It is a compact unit that fits in the palm of your hand and can be taken anywhere. The best part of using it is that you now can tell if your antenna is radiating or not by simply holding the unit near your antenna and adjusting the sensitivity. Also, by taking measurements, you can find out relatively how strong your antenna field is. Operation The SS-10 Field Strength Meter is very simple to use. It requires no power because your antenna field provides the power necessary to run the meter. Simply raise the single whip antenna on your unit, stand several feet away, and adjust the sensitivity knob on the front, it’s that easy. You want to ensure that the whip antenna is parallel with the polarity of the antenna you are reading. Now you can read the relative field strength of your antenna. Technical Assistance If you have any problem with this unit first check the appropriate section of this manual. If the manual does not reference your problem or your problem is not solved by reading the manual you may call SURECOM Technical Service at 852-54457217. You will be best helped if you have your unit, manual and all information on your station handy so you can answer any questions the technicians may ask. You can also send questions by mail to SURECOM.COM.HK Features: The appearance is simple and efficient, beautiful and generous. Frequency bandwidth, high sensitivity. 100KHz-3000MHz (with antenna ), please use different frequency antennas to test signals with different frequencies for better effect and sensitivity) The pointer amplitude can be adjusted (to protect the meter) Built-in automatic damping function, which is the buffer function, prevents the needle from swinging too fast and causing damage. Small size, easy to carry, size: 75 x 100 x 64mm (excluding the raised antenna part) Instructions for use: Before use, please rotate the "amplitude adjustment" to the left most end. The length of the antenna to be pulled depends on the frequency of the test. It is better to have 1/4 wave as much as possible. The handheld walkie-talkie is about one meter away from the field strength meter. Don't be too close! In order to avoid the signal is too strong to burn the field strength meter! Then press the walkie-talkie PTT button to make the walkie-talkie enter the launch state. At this time, the pointer of the field strength meter should have a signal indication. The stronger the signal, the greater the indication! Amplitude adjustment: If the field strength indicator indicates that the maximum range is exceeded, the "amplitude adjustment" can be adjusted to let the pointer indicate the appropriate position. Method for testing the maximum gain point of an antenna 1. In order to change the frequency conveniently and quickly, you should use the keyboard to set the frequency walkie-talkie manually. 2. Link the walkie-talkie and antenna feeders, place the field strength meter near the antenna (depending on the environment), place it within the vertical radiation angle of the antenna as much as possible, and the antenna planning method is best. 3. Set the frequency of the walkie-talkie, press the launch button, observe the meter reading, and register the meter reading. Then set the walkie-talkie to other frequency points, let the walkie-talkie enter the launch state again, observe the meter reading and then compare the readings of each frequency point! You can know the best frequency/segment of the antenna under test! A typical field-strength meter is shown in Figure 1. This is a simple passive (unpowered) circuit in which radio frequency energy is intercepted by the antenna, rectified to DC, and then used to directly drive the meter. The maximum sensitivity of this circuit is based primarily on several factors: The gain of the antenna: How much of the signal is actually intercepted. The sensitivity of the meter movement being used. The nature of the diodes being used. If you have related videos, please share with us, please contact us

SF-401PLUS Introduction:　 The frequency meter capable of measuring the parameters of the frequency of the continuous carrier signal walkie-talkies , with signal strength indicator. it is the tool of choice for maintenance personnel ,test frequency and signal strength of wireless enthusiasts. This portable frequency counter is designed for counting continuous wave signal comes from Two-way Radio. There are easy ranges for you to choose. The ranges cover most of the frequency of the two way radios you want to measure. Its four-button control is easy to use and its small size allows you to carry it anywhere you like. Work by TCXO(Temperature Compensate X'tal (crystal) Oscillator) ,In the range of -45 ℃ ~ 65 ℃ can reach ± 2 ~ ± 4ppm accuracy This include very interesting frequency areas such as 2m HAM radio, all VHF and UHF DMR Radio signal e frequency counter. Easy Battery level digital mode for DMR radio only, not for other digital device Feature & Specification: Frequency range: 27Mhz-3000Mhz ! Note: (27MHz to 100MHz It can not be guaranteed and the corresponding normal emission appliance) CTCSS/DCS Decoder (must be 136-174/400-520MHz) Frequency counter for DMR radio Frequency digital 0.000 or 0.0000 ( +-0.001) Work by TCXO( Temperature Compensate X'tal (crystal) Oscillator) 2～2.5ppm Frequency Response time: 0.2-0.5sec.( CTCSS/CDCSS >0.5-1sec) TFT Color Display 240 x 320 ,LCD Dim level setting Build-in Li-ion battery Net Weight: 113g 4 buttons control Auto power off 1-9minutes Charging battery LED indicator Manual Wholesale Quotation Shopping Power On/Off Power On –Press and Hold down the [black key] by 2 second Power Off –Press and Hold down the [black key] by 4 second of number count down to 0 Charging the battery Plug the Power cord into adaptor , Micro USB connected SF-401, The Led indicating: *The RED Led is light - Charging * The Green Led is light - Full How to check Frequency measuring. See PIC.3 The transmitter near the frequency counter antenna , see the signal reception conditions is zone green, you can test. Please see Pic.3 cautions: e.g. display 1800.000Mhz , The transmitter distance is too close to the frequency counter will affect the test results, , the signal bar is red .(see Pic.1) e.g. display 0.000, , The transmitter distance is too far to the frequency counter and signal is weak ,will affect the test results, the signal bar is low .(see Pic.1) ! Note: (27MHz to 100MHz It can not be guaranteed and the corresponding normal emission appliance) . How to check Frequency of Digital DMR Radio Press[ F3 Digital] from Measuring screen mode See PIC.1 Note: Use Digital mode have 3 Decimal only MENU funtion setting and save. See PIC.4 Press [F1] > into menu Page Press [F3 down] or [F4 Up] into System and Press [F2 Rtn] into system Page PIC.4 Press[F3 down] or [F4 Up] select funtion ,Press [F2 Edit] > [F3 - ][F4 +] change mode Press[Menu] > [F1 ]to Exit or [F4 ] to Save and Exit Menu Setting Rf defect level: The smaller the rf detect level, the more sensitive How to check CTCSS/DCS code 1.Radio must be 136-174/400-520MHz 2.Radio must be ANALOG Package Contents 1x SF401 PLUS Frequency Counter 1x UHF Antenna 1x English User Manual 1x USB charger cable 1x USB AC adapter 100-240V　 If you have related videos, please share with us, please contact us

ANTENNA PARTS Antenna Parts Technical Parameter MORE INFORMATION S215 3/8-24 to SO239 Heavy Duty Stud Antenna Mount Adaptor S216 3/8-24 to SO239 Heavy Duty Stud Antenna Mount Adaptor S217 3/8-24 to SO239 Heavy Duty Stud Antenna Mount Adaptor S218 3/8-24 to SO239 Heavy Duty Stud Antenna Mount Adaptor S219 3/8-24 to SO239 Heavy Duty Stud Antenna Mount Adaptor

Q1) Frequency counter in SW102 Meter show frequency less than it's actual? A1) Please adjust the Time Base in Menu 3 Q2) How to change the connector SO239 in SW102 Meter to N type ? A2) Please add a PL259 to N female RF ADAPTOR (Item Code: S052) Q3) Sometimes has dark screen, need to power on and off again A3) The flat cable maybe loose Q4) Has sound when shake the device A4) Screw inside maybe loose Q5) No menu 7 A5) SW102 meter in V3.7, there is no menu 7 Q6) What is the different between New and Old version of SW-102 SWR Meter ? A6) New Version of SW102 can check the Power Output more accurate and device can adjust the Power Watt mode automatically Q7) Power Watt below 0.6W , frequency counter result is not correct in SW102 Meter A7) For version below 4.3V, the Measurable power range: 1 - 120W(+-0.5%) Q8) Why the result is not same every time A8) Here is the correct using method of the SW102 SWR Power Meter. 1) When testing, the Antenna must be in vertical 2) There must not have object, metal reflecting If you want the result in same, then you should use dummy load for testing Q9) Can SW102 measure DMR radio? A9) SW102 is not for DMR Digital Radio, but SW102D can measure Digital Radio Q10) Why SWR result is different between SWR Meter and Antenna Analayzer A10) The SWR Meter is an inline device that relies on radio or external signal sources to input radio frequency, and then measures the ratio of forward power to reflected power in real time. The Antenna Analyzer, on the other hand, comes with its own low-power frequency sweep signal source and measures parameters such as SWR, complex impedance, and reflection loss at multiple frequencies at once. Since the Analyzer is usually tested on the bench, it does not necessarily reflect the state of the transmission line in actual operation Q11) I bought the SW-102S in August 2023 and now want to purchase the SW-102N. However, the product description on the Hong Kong website shows that the Efficiency % display has been removed. Does the current version still have this display? A11) The current SW102 version is V2.7. What are the differences between this and the August 2023 version? <---- Current Efficiency % Q12) Is a replacement battery available. Ours wont keep a charge anymore. A12) We don't sell batteries here, but you can ask the customer to search online to see if they're available elsewhere. The SW102 uses a 502540 3.7V 550mAh Polymer Li-ion Battery. Q13) Is the SW-102 suitable for VU models instead of HF models? A13) It depends on which model you have. *SW102-S/N : 125-525MHZ *SW102HF: 1.5-70MHZ Q14) I am specifically looking for this unit for GMRS base station and HT's, so 400-480mhz range (VU model), both for keeping an eye on SWR and radio equip TX output. Most of the time it would be used in passive mode, turned on only when i would routinely check output. This model, with rear antenna connections and front controls and display is perfect for my base unit cabinet design. A14) If you want to measure SWR and output power, you can use SW102, but it cannot continuously monitor Q15) Basically in SSB SW102HF shows values that are all out of whack A15) The SW102HF is not suitable for SSB operation. AM characteristics, also known as audio modulation (AM), are called amplitude modulation in Chinese. If the power is too low, speaking is required to generate power and initiate frequency detection. SSB = Single Side Band Single Side Band in Chinese. Simply put, it reduces AM by half. Our SW102HF is not suitable for SSB operation. Q16) After Multiple testing with different radio and antennas via uhf and vhf always the reading is 19.99 i already change the cable but same output… A16) To determine if there's a problem with the SWR ANT lead connecting to the antenna, or if there's a problem with the antenna itself, you can connect a dummy load to the SWR ANT position. If the reading is approximately SWR 1.0, this indicates a problem with the connection to the center of the antenna. The following issues need to be corrected: Is there a problem with the antenna connection to the walkie-talkie? 1) If an SWR reading of 10.2 is connected, you can analyze whether there's a problem with the antenna connection to the walkie-talkie. 19.99 indicates a problem, possibly an open circuit. 2) The antenna may be faulty and unsuitable for the transmitter frequency. 3) Check if the SWR TX and ANT connections are open. 4) Check if the connector is open. Q17) Is the SW-102N only compatible with products with an N connector? Can this model also be used with an SO239 connector? A17) If you want to connect with PL259, we have SW102-S model type which is SO239 Connection Q18) SW102-N Why I can't get it work on 220 MHz bands? A18) if check for the power transmission, the SWR meter mainly tests in VHF (144MHz) and UHF (430MHz) Bands. Othe frequencies may not can work about this function. But if checking SWR, it works for 125-525MHz Q19) I am specifically looking for this unit for GMRS base station and HT's, so 400-480mhz range (VU model), both for keeping an eye on SWR and radio equip TX output. Most of the time it would be used in passive mode, turned on only when i would routinely check output. This model, with rear antenna connections and front controls and display is perfect for my base unit cabinet design. A19) If you want to measure SWR and output power, you can use SW102, but it cannot monitor continuously, it only monitors once per transmission. Q20) I will try to make one custom ground plates for myself. Does it have to be a steel plate or an aluminium plate could also work? A20) A Ground Plane is a flat surface of ferrous metal (Aluminum, etc) Q21) A SW-102 with a ground plane won’t give more accurate SWR readings than a SW-33 Plus? The only difference is Tx-Transmission power (watts) reading? A21) Different antennas have different radiation patterns. Radiation may vary depending on the operating environment. The s w r data is for reference only. Q22) What the difference between SW102D and SW102? A22) SW102D can check DMR radio Q23) what is the difference between SW-102, SW-102HF and SW-102S? A23) SW-102 : N-connector, 100 - 520MHz SW102-S: SO239 connector, 100 - 520MHz SW102HF: SO239 connector, 1.5 - 70MHz Q24) I want to know exactly what connectors are on this sw-102. Are they N-type connectors or are they SO239 connectors? A24) We have two type of SW102 for selling: N-type connector and SO239 connector Q25) I have just received the Surecom SW-102HF. When I connect it to my transceiver and antenna I get really weird and spurious readings for SWR and Power. I checked the cables etc and found that the Antenna side of the meter is short-circuited. When I use a multimeter the resistance between the centre conductor and the shield conductor is zero - that doesn't seem right to me. A25) n the circuit, at low frequencies, a short circuit is normal. However, at high frequencies, it's not a short circuit. Therefore, using a multimeter to test for a short circuit is normal. The above circuit diagram can help you understand this Q26) Stopped working of my SW102.Worked at first but now display illuminates with no data.Is there a way to reset the SW-102 to resolve this issue? A26) If there is no display, press and hold the power button until it resets. Q27) With multiple radios and different antennas, VSWR always reads 19.99. Even with a 50-ohm dummy load, VSWR reads 19.99. How can I fix this? I am transmitting 6W on 446.000 with dummy load and still getting 19.99. A)27) Q28) Hello I already received the product Surecom SR 628 and connected it with my POC and UV5R. The controller is not functioning well, it sometimes work and sometimes not working - only blinking orange when the POC radio receive signal. i tried adjusting the POC volume but still the same the controller is malfunctioning, please see attached video A28) SR-628 not work for POC radio Q29) SW102 has failed after two months. Antennas tested right after purchase had SWRs in the range of 1.2 and 1.5. Retested those same antennas today and they show SWRs of 4.5-5.5 under identical conditions. In fact, all antennas show and SWR in that range. If I retest them with an analog Surecom RS-40 it reports proper SWRs. A29) Please use Dummy Load to check if the result is 1.0 ? Q30) Hello, I recently purchased your Surecom SW 102 SWR meter reader and have a question. It seems to be working however the frequency reading between the radio and reader are off by one digit as you can see in the image attached. I verified this with three radios and they are all off by +.001. Is there a way to correct this as my friends unit is dead on? A) Go to "MENU" , choose option 3 "adjust frequency" and then press "+/-" to adjust the frequency Q31) How long of a transmit is needed for the meter to accurately read VSWR and frequency? Would 0.1 second be long enough for an ~8W signal coming from a data radio or is a longer PTT needed like holding PTT for a few seconds? A31) Not more than 1 second Q32) How to replace the internal battery? A32) The outer casing needs to be disassembled with T6 screwdriver for replacement.

A frequency counter is an electronic instrument, or component of one, that is used for measuring frequency. Frequency counters usually measure the number of cycles of oscillation, or pulses per second in a periodic electronic signal. Such an instrument is sometimes referred to as a cymometer. FREQUENCY COUNTER A frequency counter is an electronic instrument, or component of one, that is used for measuring frequency. Frequency counters usually measure the number of cycles of oscillation, or pulses per second in a periodic electronic signal. SF-401 PLUS New ver 4.0 Frequency Counter SF-401 PLUS SURECOM Portable CTCSS/DCS Decoder Feature & Specification: Frequency range: 27Mhz-3000Mhz ! Note: (27MHz to 100MHz It can not be guaranteed and the corresponding normal emission appliance) CTCSS/DCS Decoder (must be 136-174/400-520MHz) Frequency counter for DMR radio Frequency digital 0.000 or 0.0000 ( +-0.001) Work by TCXO( Temperature Compensate X'tal (crystal) Oscillator) 2～2.5ppm Frequency Response time: 0.2-0.5sec.( CTCSS/CDCSS >0.5-1sec) TFT Color Display 240 x 320 ,LCD Dim level setting Build-in Li-ion battery Net Weight: 113g 4 buttons control Auto power off 1-9minutes Charging battery LED indicator ......... MORE INFORMATION SF-103 SF-103 Portable Frequency Counter 2MHz - 2.8GHz The SURECOM SF-103 hand-held frequency counter is a more practical counter, even advanced features such as field strength measurement are incorporated. It is compact, truly pocket sized, test instrument designed for ease of use and dependable performance. Supplied as a complete with internal Li-ion battery pack, AC wall charger and antenna. Introduction:　 The frequency meter capable of measuring the parameters of the frequency of the continuous carrier signal walkie-talkies , with signal strength indicator........ MORE INFORMATION FREQUENCY COUNTTER クイックビュー SURECOM SF-20 20W POWER METER and Frequency counter 価格 $38.50 クイックビュー SF-103 Portable Frequency Counter 2MHz - 2.8GHz 価格 $55.00 クイックビュー Frequency Counter SF-401 PLUS SURECOM Portable CTCSS/DCS Decoder 価格 $42.50

R7 Surecom R7 4G LTE WIFI Bluetooth ネットワークラジオトランシーバー 仕様： OS：Android インターコムシステム：409PTT、PTT 動作温度範囲：-30℃～+75℃ 動作電圧：3.4～4.2V DC 充電方法：クレードル/USB-TYPEC 防水レベル：IP54 マニュアル 卸売 お見積り 買い物 ブランド: SURECOM モデル: R7 対応通信ソフトウェア: 409PTT トランクデジタル通信システム SIMカード動作: 4G LTE / 3G / 2G Wi-Fi: あり Bluetoothヘッドセット: あり ヘッドホンスロット: 3.5mmプラグ 電話機能: なし 機能: 集団通話、単独通話。 グループモニタリング: あり GPS機能: あり 体積: 134x62x41mm (アンテナ突起部を除く) 重量: 190g バッテリー容量: 3.7V 5200mAh 動作時間: 約12～18時間 スタンバイ時間: 約30時間 パッケージ内容： Surecom R7 (アドバンスエディション) 4G LTEネットワークトランシーバー x 1 (プラットフォーム使用期間1年) 5200mAhバッテリー x 1 USB-TYPE-C充電ケーブル x 1 充電器 x 1 USBファイヤーブル x 1 ストラップ x 1 バッククリップ x 1 ユーザーマニュアル x 1

The SE-01 PTT button activates computer software that communicates to the phone or tablet and activates the PTT of the PoC App. directly. The SE-01 PTT works just like a normal PTT, push to talk and release to listen. There is no battery to charge and the SE-01 does not add any battery drain to your phone or tablet (th SE-01 The SE-01 PTT button activates computer software that communicates to the phone or tablet and activates the PTT of the PoC App. directly. The SE-01 PTT works just like a normal PTT, push to talk and release to listen. There is no battery to charge and the SE-01 does not add any battery drain to your phone or tablet (the SE-01 has a small disposable battery you can easily change, but it will last from 1 to 2 years so it is very inexpensive to operate.) Using the SE-01 is super easy! Select 'External PTT' in your PoC App (not every PTT App supports external PTT, so check first.) Plug in the SE-01, and simply press the PTT to start talking. There is nothing to pair, nothing to charge. Couldn't be much easier Features: POC Audio Accessory Solution For Zello App on iOS and Android. Ear for hygeine & all-day comfort. Noise Reduction Knowles Microphone. Front Facing PTT Button. Designed & Engineered in the HONGKONG This is our NEWEST invention for our customers wanting to use PTT apps on cell phones and tablets. Most cell phones and tablets do not support any kind of external Push-to-Talk (PTT) function on their accessory plugs,so users have either had to use the device screen or Bluetooth to make the PTT work. Sometimes it's not easy to push a PTT on the device screen, and Bluetooth can be inconvenient since it needs pairing, battery charging, etc. The SE-01 PTT solves this problem by having the computer software inside! (like phone calling, music playing, photo taking, etc.) Manual Wholesale Quotation Shopping Package Include: 1x SE-01 PTT Controller with Mic 1x 3.5mm MONO Earpiece Set-up wired accessories for Zello Android Depending on the Android device, you may need to disable Google Play Music under applications to prevent the headset hook from bringing up music. If you're using one of the Zello recommended accessories that function as a push-to-talk device, log into your management console and go to Settings > Android > "Enable Use specialized wired PTT speaker-mic or headset" and save. 1. Connect the accessory to your mobile device 2. Open Zello "Options" > "Push-to-talk button" 3. Select "Add Button" on the top right. You'll get a prompt asking you to press the desired button and it will be added as a "Headset hook". 4. Make sure the button is set to "Toggle mode" and that "Handle headset button when in the background" is enabled. Even though it's set to toggle mode, the accessory will work as a push-to-talk mode if it's listed as push-to-talk from the website. If you're using a device not listed, it will most likely only work as Toggle mode. iPhone/iPod/iPad Although Zello does have the option to map a headset hook from an Apple headset, it is not often reliable. Zello does not have the control to maintain the headset hook for PTT control, so the headset button will may sometimes trigger music. To prevent this from happening, make sure you don't have a music app in the background while using Zello. Connect your headset to your iPhone and then follow these steps: 1. Set push to talk button "Action" to "Toggle". (Zello menu>Options>Push To Talk button>Action>Toggle). 2. Make sure you have enabled "Headset/remote control" enabled. 3. Go to Audio settings and make sure you have "Mix with other audio" turned Off (Zello menu > Options > Audio > Mix with other audio > Off ). If you have related videos, please share with us, please contact us