Item Name: SF-103 Portable Frequency Counter 2MHz - 2.8GHz
USD 55.00
SF-103 Portable Frequency Counter 2MHz - 2.8GHz
Description
SF-103
SF-103 Portable Frequency Counter 2MHz - 2.8GHz
The SURECOM SF-103 hand-held frequency counter is a more practical counter, even advanced features such as field strength measurement are incorporated. It is compact, truly pocket sized, test instrument designed for ease of use and dependable performance. Supplied as a complete with internal Li-ion battery pack, AC wall charger and antenna.
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 for 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.
GUI Battery level
Feature & Specification:
Frequency range two select : 2MHz-200MHz / 27MHz -2800MHz
CTCSS/DCS Decoder
Frequency counter Digital mode for DMR radio
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 ,LCD Dim level setting
Build-in Li-ion battery
Net Weight: 113g
4 buttons control
Auto power off 1-9minutes
Charging battery LED indicator
Package include:
1 x SF-103 frequency counter
1 x DUAL BAND UHF / VHF antenna
1 x BELT CLIP
1 x USB CHARGER with cable .
1 x ENGLISH MANUAL
Enquiries Please call the Customer Service Hotline / Whatsapp: 54457217 / Email: cs@409shop.net
User manual:
1.1 Power On/Off:
Power on ,press and Hold down the [Red key] by 3 second
Power off ,press and Hold down the [Red key] by 3 second of number count down to 0
1.2 Charging the battery :
Plug the power cord into adaptor , micro usb connect SF103
The Led indicating: *The RED light Charging * The Green light is Full
1.3 Setup the frequency Range :
Press[ F2.stop ] button ,[F3 -->] select function to "Rang"
Press the [F4 Ent] Select 27M-2.8G(27MHz-2800MHz) /<=200MHz (below 200MHz) ,
and then press[F2] to Run
1.4 Setup the time Gate :
Press[ F2.stop ] button ,[F3 ---> ] select Function to "Gate"
Press the [F4 Ent] select : 0.1s / 0.25s / 0.5s / 1.0s ,and then press [F2] to Run
1.5 Setup the Frequency counter digi :
Press[ F2 ] botton ,[F3--->] select Function to "Gate"
Press[F4 Ent] Select : 3 / 4 / 5 / 6 , and then press [F2] to Run
! 27MHz-2.8GHz for 3 / 4 only , 2-200MHz for 3 / 4 / 5 / 6 , Detail Please see Table 1:
1.6 How to check Frequency of Digital DMR Radio
Press[ F2 ] botton ,[F3 --->] select Function to" type" :Press [F4] select Analog / Digital(DMR) ,
and then Press [F2] to Run
!Note. Digital mode have 3 Decimal only.
1.7 How to ADJ. the Frequency mode of 27MHz -2.8GHz: ( See PIC.2)
Press, [F3 MENU ] , [F3 Down] / [ F4 Up] to select the Gate to (0.1s/0.25s/0.5s/1.0s)
Press, [F2 Edit] / [F3 - ] and [ F4 +] to select the +/- 99
Press, [F1. Main] exit , and then press [F4 save] for save the setting .([F1] not save for exit)
1.8 How to fine tune the Frequency mode of 2-200MHz: (See PIC.1 )
Tune the PCB VR1 (Variable resistance)
(The factory has been set accurate, such as non-technical staff do not tune)
1.9 How to use [F3 menu ] mode: (see PIC2)
Press, [F3 - ] / [ F4 +] select the function ,and then press [F2 edit] for edit mode ,
Press, [F3 - ] / [ F4 +] selecy for change the data .
Press, [F1. Main] exit , and then press [F4 save] for save the setting .([F1] not save for exit)
Caution:
1)Max. direct input signal 5Vp-p
2)Prohibit direct access to the radio antenna output, resulting in damage to the frequency meter
Frequency Display Resolution / CTCSS ,DCS Decode frequency range
SELECT
A
27MHz-2.8GHz
Gate Time select
(seconds)
Sample Display (100MHz)
CTCSS/DCS
Digi
select A
3
4
5
6
Decode Range
132-173MHz
200-260MHz
400-519MHz
0.10 s
100.000
100.0000
0.25 s
100.000
100.0000
0.50 s
100.000
100.0000
1.00 s
100.000
100.0000
SELECT
B
2MHz-200MHz
Gate Time select
(seconds)
Sample Display (100MHz)
CTCSS/DCS
Digi
select B
3
4
5
6
Disable
0.10 s
100.000
100.0000
0.25 s
100.000
100.0000
0.5 s
100.000
100.0000
100.00000
100.000000
1.00 s
100.000
100.0000
100.00000
100.000000
How to check CTCSS/DCS code
1.Radio must be 132-173 / 200-260MHz / 400-519MHz
2.Radio must be ANALOG
CTCSS/DCS Decoder for ANALOG mode
CTCSS (Hz)
50.0
97.4
151.4
192.8
55.0
100.0
156.7
196.6
67.0
103.5
159.8
199.5
69.3
107.2
162.2
203.5
71.9
110.9
165.5
206.5
74.4
114.8
167.9
210.7
77.0
118.8
171.3
218.1
79.7
123.0
173.8
225.7
82.5
127.3
177.3
229.1
85.4
131.8
179.9
233.6
88.5
136.5
183.5
241.8
91.5
141.3
186.2
250.3
94.8
146.2
189.9
254.1
CDCSS for ANALOG mode (N code only)
Standard(N)
sf103
check
Standard(N)
sf103
check
Standard(N)
sf103
check
Standard(N)
sf103
check
23
23
143
143
266
465
465
25
25
145
271
271
466
466
26
26
152
152
274
503
503
31
31
155
155
306
306
506
506
32
32
156
156
311
311
516
516
36
162
162
315
315
532
532
43
43
165
165
325
546
546
47
47
172
172
331
331
565
565
51
51
174
174
332
606
606
53
205
205
343
343
612
612
54
54
212
346
346
624
624
65
65
223
223
351
351
627
627
71
71
225
356
631
631
72
72
226
226
364
364
632
632
73
73
243
243
365
365
654
654
74
74
244
244
371
371
662
662
114
114
245
245
411
411
664
664
115
115
246
412
412
703
703
116
116
251
251
413
413
712
712
122
252
423
423
723
723
125
125
255
431
431
731
731
131
131
261
261
432
432
732
732
132
132
263
263
445
445
734
734
134
134
265
265
464
464
743
743
754
754
Specifications for FREQUENCY SF401/SF103
FUNCTION
SF-401-PLUS
SF-103
Frequency Range:
27MHz-3000MHz
2MHz-2800MHz
Gate Speeds select:
N/A
0.1 / 0.25 / 0.5 / 1.0 Second
DIGITAL:
3-4
3-6
DIGITAL mode :
DMR system
Distant :
0.3-1M
0.3-9M
Walkie talkie code of CTCSS/DCS:
must be 132-173 / 200-260MHz / 400-519MHz
Signal attenuation s.w.
-10db by switch
AUTO GAIN
Li-ion Battery Built-in:
600mAH
1500mAH
TFT LCD:
320 x 240 pixels
Current consumption:
10MA
30-50MA
TCXO crystal Oscillator
+- 2.5ppm
+- 2.5ppm
Charger input:
Micro USB +5V in
Impedance input:
50 Ohm (BNC)
Weight:
100g
113g
Dimensions size :
70 x 25 x 90mm ( not include antenna & BNC socket)
Warning: When the input power is high than dummy provide, this is damage the dummy load.
Why use the dummy load?
A Dummy Load is a device used to simulate an electrical load during testing. In an RF System a dummy load is used to simulate an antenna. By using a dummy load instead of an actual antenna, the transceiver can be tested and configured without radiating radio waves.
The Dummy Load is selected in a way so that it has a similar impedance to the real device that will be connected to the RF System.Not using a dummy load and leaving the port open, can result in some unwanted reflections which can damage the RF System. Also, using a real antenna in the testing phase can result in some unwanted transmission in the lab which will interfere with other devices and technologies being tested.
