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V.S.W.R. meter Introduction V.S.W.R. 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. All Function display (  S.W.R, F.W, R.W,Battery Level) SW-112 HF 1.5-60MHz SW-112 VU 125-525MHz 驻波比/功率计使用说明 这个 驻波比 & 功率计是一款,射频计，用于测量正向功率、反射功率和驻波比 主要特点： · LED 背光显示，指针表头,读数方便。 · 正向 RF 功率读数。 · 反射 RF 功率读数。 · V.S.W.R. 比率。 · 方便的控制，易于操作。 · 无电池读取控制。 功能與規格 SW-112 HF 頻率範圍： 1.5-60MHz SW-112 VU 頻率範圍： 125-525MHz S.W.R. 范围:1:1~ ∞ V.S.W.R 测量:所需功率 = > 大于4 瓦 可測功率範圍：0.5-120W 最大功率：120W 阻抗：50Ω 尺寸：W 88XH 59 X D80 毫米。 重量： 270克 接口： SO239 接口 配件:使用说明书，USB 转 5.5/2.1mm 电缆 說明書 批發 購物 接口：NJ接口/ SO239 最大限度。功率：120 W（可測量功率，無線電必須為模擬） 電壓駐波比1.00：1〜19.9：1 頻率範圍：1.5-70MHz (SW-112HF), 125-525MHz (SW-112VU) 插入損耗<0.15dB（VHF），<0.25dB（UHF） 溫度0℃〜60℃ 電池顯示：是 內置電池： no 自動關閉電源：1-9分鐘 尺寸：66 * 68 * 37（mm） 5V充電器（微型USB） 背光自動關閉 接口（進出） SO239 重量： 電源開/關： 按下[紅色按鈕] 2秒鐘打開或關閉電源 MENU顯示 內容: 1.Light off(背光時間）0-9，始終在1分鐘到9分鐘的時間裡顯示“ 0” 2.POWER OFF 電源關閉0-9 1到9分鐘始終為“ 0” 3.Adjust Power 調整前向功率-99至+99微調水平％ *供應商，該產品將添加功能而無需另行通知 設置並保存 按下MENU [藍色按鈕] 按F1 [紅色按鈕）（選擇1-5功能） 按下[藍色按鈕]（-），[黃色按鈕]（+） 按下[紅色按鈕] 2秒鐘 按[藍色按鈕]保存並退出 如何檢查天線的駐波比： Radio將收音機輸出連接至``TX''，並將天線連接至``ANT''。如果您的設備具有不同類型的連接器，則需要正確的適配器/電纜。 測量電壓駐波比：（參見圖1） SW-102 TX連接無線電射頻輸出 帶有顯示SWR測量數據的無線電TX SW-102。 在以下情況下，不要影響測試，附近有物體，水平放置。 如何檢查收發器的輸出功率： 連接到無線電輸出上的“ TX”，並將虛擬負載加載到“ ANT”。如果您的設備具有不同類型的連接器，則需要正確的適配器/電纜。 測量功率：（參見圖2） SW-102 TX連接無線電射頻輸出 SW-102 ANT連接50歐姆虛擬負載 按下電台TX，SW-102顯示為功率測量數據。 如何顯示旋轉： 按黃色鍵將顯示旋轉180度， 按黃色鍵正常。 包裝內容 1個SURECOM SW-102 HF 功率和駐波計（SO239-連接器） 1個電源PSU 100-240V 1x充電器線 1x英文用戶手冊 版本信息： 第一代 版本 V2.7 EXPLANATION OF FEATURES 1. 4 x 2.5cm analogue meter. 2. Meter Lock / ON 3. SWR Calibration Knob . 4. Meter zero adjustment screw 5. Function switch : RW,SWR / FW,CAL . 6. Function switch : WATT / SWR. 7. Power range switch 12W / 120W. 8. +5-24V DC power for meter illumination. 9. ANT : RF output to an antenna or dummy load . 10. TX : RF power input from a radio . HOW to USE FORWARD POWER MEASUREMENT 1.Set the function switch 2 to the "ON" 2.Set the function switch 6 to the "WATT" 3.Set the function switch 5 to the "FW" 4.Set the radio transceiver to transmit and read the scale corresponding to the Power range selected switch (12W, or 120W) REFLECTED POWER MEASUREMENT 1,Set the function switch 2 to the "ON" 2.Set the function switch 6 to the "WATT" 3.Set the function switch 5 to the "RW" 4 Set the radio transceiver to transmit and read the scale corresponding to the Power range selected switch (12W, or 120W)| VSWR MEASUREMENT Step 1 1. Set the function switch 2 to the "ON" 2. Set the function switch 6 to the"SWR" , .Set the function switch 5 to the "CAL" 3. Set the radio transceiver to transmit mode. 4. Slowly turn the CAL control Knob clockwise until the meter point is at the "CAL" position. This should be full scale. Step 2 Set the function switch 5 to the ‘SWR’ position while transmitting. The meter will now indicate the SWR ratio. Note: that the front and rear panel data of the two models are different.Subject to change without prior notice CAUTION 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 如果您有相關視頻，請與我們分享，請與我們聯繫

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.

對講機設備公司，自2014年以來，OEM ANTENNA ASurecom NALYZER SA-160 SA-250,V.S.W.R. 儀表 SW-33markii SA-33 PLUS，頻率計數器 SF-401PLUS SF103。 中繼控制器 SR-112 SR-328 SR-628，場強計 SS-10 SS-11，網絡對講機 H5C-V8 R7 T3 S1 ,CB Radio, 歡迎批發。 對講機 產品儀器 S 我們不斷創新和與客戶建立夥伴關係的動力使他們能夠在日常時刻以及最重要的時刻做好準備。 SW-102D SW-112 SW102HF SW-28 SW-32 SW-29 SW-102-N.jpg SW-102-so239.jpg sw33plus.jpg sw33markii.jpg SW-111.jpg SW-114.jpg SF401plus.jpg Wholesale Welcome SF103.jpg SA-250.jpg SA-160.jpg SS10.jpg SS11.jpg SR-629.jpg Repeater Controller Series SR-112.jpg SR-328.jpg SR-628.jpg SF-20.jpg 我們致力於設計和交付我們的設備和企業客戶稱為生命線的關鍵任務生態系統-關鍵任務通信，軟件，服務。 產品專為 對講機 MAKE 現在下單 查看更多 天線分析儀 天線分析儀（也稱為噪聲橋，RX橋，SWR分析儀或RF分析儀）是一種用於測量無線電電子應用中天線系統的輸入阻抗的設備。 閱讀更多 中繼器控制器 轉發器是一個自動無線電中繼站，通常位於山頂，高層建築物或無線電塔上。它允許兩個或多個基站，移動站或便攜式站之間的通信，這些基站由於彼此之間的距離或障礙而無法直接進行通信。 閱讀更多 對講機 對講機，更正式地稱為手持收發器，是一種手持式，便攜式雙向無線電收發器。我們出售高功率和FRS對講機，家庭無線電服務（FRS）是一種改進的對講機，從1996年開始在美國授權的對講機無線電系統。在香港，2003年獲得對講機無線電系統，此個人廣播服務使用... 閱讀更多 網絡對講機 蜂窩一鍵通（PTToC，PoC）是一項功能，允許智能手機或移動電話用作對講機，與預先定義的組中的一個或多個用戶進行通信。 ...此功能需要一鍵通功能的智能手機或移動電話。 閱讀更多 頻率計數器 頻率計數器是一種用於測量頻率的電子儀器或電子儀器的組成部分。頻率計數器通常會測量振盪週期數或週期性電子信號中每秒的脈衝數。有時將這種儀器稱為測振儀。 閱讀更多 射頻信號場強計 場強計實際上是一個簡單的接收器。檢測到RF信號，並將其饋入以百分數標定的微安表。調諧器的頻率範圍通常在地面廣播頻段內。 閱讀更多 藍牙手咪 藍牙揚聲器的重要功能之一是可用於免提通話的內置麥克風。揚聲器的聲音足夠大，您可以清楚地聽到另一端的人的聲音，並在通話時鬆開手來執行其他任務，該項目適用於對講機和移動收音機 閱讀更多 車載 對講機 移動電台 商業和專業移動無線電設備通常是從設備供應商或經銷商那裡購買的，他們的工作人員會將設備安裝到用戶的車輛中。大型車隊用戶可以直接從設備製造商那裡購買無線電，甚至可以僱用他們自己的技術人員進行安裝和維護。 閱讀更多 V.S.W.R. 駐波表 駐波比計，SWR計，ISWR計（電流“ I” SWR）或VSWR計（電壓SWR）測量傳輸線中的駐波比（SWR）。[a]儀表間接測量失配程度。 在傳輸線及其負載（通常是天線）之間。 電子技術人員使用它來調整無線電發射器及其天線和饋線以使其阻抗匹配，從而使它們正常工作，並評估其他阻抗匹配工作的有效性。 閱讀更多 天線配件 適用於任何天線應用的可靠，高性能 SURECOM天線配件是可靠，高性能通信部件的世界標準。 標準，高性能和抗震移動支架的廣泛產品組合。 閱讀更多 POC配件 附件使409PTT Zello用戶能夠在方向盤上暢所欲言，並且在嘈雜的環境中清晰通話。所有配件均配有專用的一鍵通按鈕，我們已經對其全部進行了測試，並確信它們與我們的一鍵通應用程序兼容。但是，您應在自己的環境中對這些附件中的任何一個進行測試，然後再對其進行標準化或進行大量購買。 閱讀更多 CB 27MHz 對講機 在許多國家/地區中使用的公民波段無線電（也稱為CB無線電）是一種陸地移動無線電系統，該系統允許使用在27個附近的40個頻道上運行的雙向無線電來實現個人之間的短距離人對人雙向語音通信。高頻（又名短波）頻帶中的MHz（11 m）。公民頻段不同於其他個人無線電服務分配，例如FRS，GMRS，MURS，UHF CB和業餘無線電服務（“火腿”無線電）。在許多國家/地區，CB操作不需要許可證，並且（與業餘無線電不同）它可以用於商業或個人通信。 閱讀更多 DUMMY LOAD 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 閱讀更多