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Quick Details

  • Place of Origin: Hong Kong
  • Brand Name: SURECOM
  • Model Number: SF-401plus
  • Display Type: Digital Only
  • Measuring Range: 100Mhz ~ 3000Mhz
  • Accuracy Class: 2.5ppm
  • Voltage: 5V
  • Operating Temperature: -45 ℃ ~ 65 ℃
  • Dimensions: 70 x 30 x 90mm
  • Brand: SURECOM HK
  • Frequency range: 100Mhz -3Ghz
  • Battery build-in: Li-ion 3.7V 600mah
  • impedance input: 50 Ohm
  • current consumption: 10ma
  • TCXO crystal Oscillator: +- 2.5ppm
  • Net Weight: 150g
  • Product Size: 70 x 30 x 90mm
  • Display resolution: 0000.000 or 0000.000
  • Type: Frequency Counter Meter

Packaging & Delivery

Packaging Details: 1x SF401plus Frequency Counter Meter
1 x Antenn asf-401
1x User Manual
1x USB charger cable
1x USB AC adapter 100-240V
Delivery Detail: 1~7 days

Portable SURECOM SF401plus Frequency Counter Meter

 

Specifications:

SF401plus Frequency Counter Meter

New Function: for analog and digital Radio

 

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: 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  
 

 

Specifications for SF-401 and SF-401 PLUS 

Brand Name: SURECOM HKSF-401SF-401-PLUS
 DIGITAL RADIO signalDMR NoYES
 Signal  attenuation s.w.
-10db NoYES
Battery Built-in level VoltageEasy icon
Flash LightLEDYESNO
TFT LCD: 320 x 240 pixelsYESYES
Li-ion Battery build-in : 3.7V 600mahYESYES
current consumption:10maYESYES
TCXO crystal Oscillator+- 2.5ppmYESYES
Changer in:Micro USB +5VYESYES

impedance input: 

50 Ohm (BNC)YESYES

Weight: 

113gYESYES

Dimensions size :

70 x 25 x 90mmYESYES

 

 

SF-401-PLUS

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

 

 

 

CTCSS/DCS Decoder for ANALOG mode

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  for ANALOG mode

Standard(N)sf401
check
 Standard(N)sf401
check
 Standard(N)sf401
check
 Standard(N)sf401
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

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

Packaging & Shipping

 

 

Company Information

 

 

409 SHOP LTD 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 earphones, headsets, speakers, microphones, throat microphones, air acoustic w/mic, leather cases, batteries, chargers, programming cables, antennas and other fittings compatible with major brands of two-way radios.

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.

 

 

Contact US

 

FAQ

Q: What's your company MOQ?

A: In generally, if use customer brand, we will ask at least 500pcs, this we can negotiate. 

Q: What's your delivery time?

A: This please ask our stock in first, products can send out once receive your deposit.

If use customer brands, we will take a 20-25days to prepare materials and mass production.

Q: Can your company accept customize?
A: Welcome OEM & ODM.
Q: How do you solve after sale service?

A: This please ask us for technical support if you have workers know how to repair.

If do not have engineers, please send back the items, we can repair the items for you. 

Q: Can you send a sample for us to develop?
A: Yes, we can. Sample can send out once you ask for it, but will ask a sample fee. Sample fee will return back in future order.
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