SF-401PLUS
Introduction:
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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.
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There are easy ranges for you to choose. The ranges cover most of the frequency of the two way radios you want to measure.
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Its four-button control is easy to use and its small size allows you to carry it anywhere you like.
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Work by TCXO(Temperature Compensate X'tal (crystal) Oscillator) ,In the range of -45 ℃ ~ 65 ℃ can reach ± 2 ~ ± 4ppm accuracy
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This include very interesting frequency areas such as 2m HAM radio, all VHF and UHF
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DMR Radio signal e frequency counter.
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Easy Battery level
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digital mode for DMR radio only, not for other digital device
Feature & Specification:
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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)
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Frequency counter for DMR radio
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Frequency digital 0.000 or 0.0000 ( +-0.001)
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Work by TCXO( Temperature Compensate X'tal (crystal) Oscillator) 2～2.5ppm
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Frequency Response time: 0.2-0.5sec.( CTCSS/CDCSS >0.5-1sec)
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TFT Color Display 240 x 320 ,LCD Dim level setting
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Build-in Li-ion battery
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Net Weight: 113g
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4 buttons control
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Auto power off 1-9minutes
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Charging battery LED indicator
Manual
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