SF-103 Portable Frequency Counter 2MHz – 2.8GHz iMartCity Outlet Stores

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

 

 

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)

 

 

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