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SURECOM SF401-PLUS Portable CTCSS/DCS Decoder Frequency Counter
Description
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
Feature & Specification:
•
Frequency range: 27Mhz-3000Mhz
!
Note: (27MHz to 100MHz It can not be guaranteed and the corresponding normal emission appliance)
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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
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Summary of Contents for Surecom SF-401
- Page 1 SURECOM SF401-PLUS Portable CTCSS/DCS Decoder Frequency Counter Description 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.
- Page 2 Specifications for SF-401 and SF-401 PLUS FUNTION SF-401-PLUS DIGITAL RADIO signal: CTCSS/DCS CHECK 136-174 / 400-520MHz Signal attenuation s.w. -10db Battery Built-in: level ICON TFT LCD: 320 x 240 pixels Li-ion Battery build-in : 3.7V 600mah Current consumption: 10MA TCXO crystal Oscillator +- 2.5ppm...
- Page 3 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.
- Page 4 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.
- Page 6 141.3 186.2 250.3 94.8 146.2 189.9 254.1 CDCSS for ANALOG mode (N code only) sf401 sf401 sf401 sf401 Standard(N) Standard(N) Standard(N) Standard(N) check check check check Q&A of SF-401 plus Frequency Counter Problem: Frequency counter cannot check VHF frequency Solutions:...
- Page 7 1) Swtich the ATT button into left hand side 2) Then change the antenna into VHF or Dual band, as customer are using UHF antenna, but checking VHF band 3) If you really using the UHF antenna to check it, please try to slant your radio to the frequency counter, like the following picture Package Contents 1x SF401 PLUS Frequency Counter 1 x UHF Antenna...
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