MyDEL Surecom SF-401 Plus Frequency Counter

MyDEL Surecom SF-401 Plus Frequency Counter
RRP: £ 49.95
£39.95 ( £33.29 EXC. VAT )
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Product Information
  • Overview
The MyDEL Surecom SF-401 Plus reads your RF transmitted frequency from 100 to 3000 MHz (27 to 100 MHz coverage with reduced specs.).

Additionally, it can read and display your CTCSS tone and DCS code on the backlit color LCD screen. 
Display may be set to read 0.000 or 0.0000 MHz. With TCXO and charging LED.
Auto-power-off may be set for 1 to 9 minutes. Built-in 3.7 Volt Li-ion battery.

This items comes with: BNC antenna, USB charging cable and UK 3 pin USB power supply.
A comprehensive instruction sheet is also supplied.

  • This frequency meter is capable of measuring the parameters of the frequency of the continuous carrier signal, with signal strength indicator. 
  • This portable frequency counter is designed for counting continuous wave signals coming from radios. 
  • 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 includes areas such as 2m HAM radio, all VHF and UHF
  • DMR Radio signal e frequency counter.
  • Easy Battery level 

Feature & Specification:

  •    Frequency range: 100Mhz-3000Mhz
    ! Note: (27MHz to 100MHz It can not be guaranteed and the corresponding normal emission appliance)
  •   CTCSS/DCS Decoder
  •    LCD Dim level setting
  •    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 
  •     Build-in  Li-ion battery
  •     Net Weight: 113g 
  •     4 buttons control
  •     Auto power off  1-9minutes   
  •     Charging battery LED indicator  

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  
Note: Use Digital mode have 3 Decimal only

MENU funtion setting and save.    
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

(Do not directly connect a radio RF output by cable ,HIGH RF output will damage FREQUENCY counter ) 

CTCSS / CDCSS Testing code
SF-401-plus

CTCSS
CTCSS (Hz)  
50.097.4151.4192.8
55.0100.0156.7196.6
67.0103.5159.8199.5
69.3107.2162.2203.5
71.9110.9165.5206.5
74.4114.8167.9210.7
77.0118.8171.3218.1
79.7123.0173.8225.7
82.5127.3177.3229.1
85.4131.8179.9233.6
88.5136.5183.5241.8
91.5141.3186.2250.3
94.8146.2189.9254.1

 CDCSS 

Standardsf401
check
 Standardsf401
check
 Standardsf401
check
 Standardsf401
check
2323143143 266465465
2525 145271271466466
2626152152 274503503
3131155155306306506506
3232156156311311516516
 36162162315315532532
4343165165 325546546
4747172172331331565565
5151174174 332606606
 53205205343343612612
5454 212346346624624
6565223223351351627627
7171 225 356631631
7272226226364364632632
7373243243365365654654
7474244244371371662662
114114245245411411664664
115115 246412412703703
116116251251413413712712
 122 252423423723723
125125 255431431731731
131131261261432432732732
132132263263445445734734
134134265265464464743743
 754754


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