Feature & Specification:

• 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
  
• Frequency range: 27Mhz-3000Mhz
• CTCSS/DCS Decoder
• LCD Dim level setting
• Frequency digital 0.000 or 0.0000
• Work by TCXO(Temperature Compensate X'tal (crystal) Oscillator) 2～2.5ppm
• Frequency Rresponse time: 0.2-0.5sec.( CTCSS/CDCSS >0.5-1sec)
• Color Display 240x320
• Build-in Li-ion battery
• Net Weight: 113g
• 4 buttons control
• Auto power off 1-9minutes
• Charging battery LED indicator

(note: 27MHz to 100MHz, it can't be guaranteed and the corresponding normal emisssion appliance!)

Specifications:
Brand Name:	SURECOM HK	SF-401	SF-401-PLUS
DIGITAL RADIO signal	DMR	No	YES
Signal attenuation s.w.	-10db	No	YES
Battery Buily-in	level	Voltage	Easy icon
Flash Light	LED	YES	NO
TFT LCD:	320 x 240 pixels	YES	YES
Frequency Range:	27Mhz -3Ghz	YES	YES
Li-ion Battery build-in :	3.7V 600mah	YES	YES
current consumption:	10ma	YES	YES
TCXO crystal Oscillator	+- 2.5ppm	YES	YES
Changer in:	Micro usb +5V	YES	YES
impedance input:	50 Ohm (BNC)	YES	YES
Weight:	113g	YES	YES
Dimensions size :	70 x 25 x 90mm	YES	YES

CTCSS

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

Standard	sf401 check		Standard	sf401 check		Standard	sf401 check		Standard	sf401 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

Package contains: