SURECOM SF401 PLUS Frequency Counter for Radio Transceiver CTCCSS/DCS Decoder

Description

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SURECOM SF401  PLUS Frequency Counter for Radio Transceiver CTCCSS/DCS Decoder
Introduction
Description:
Powerful signal strength indicator to measure walkie talkies' continuous  carrier signal frequency for wireless enthusiasts.
Designed for counting continuous wave signal from Two-way Radio
Easy ranges to choose and cover almost all the frequency
Include frequency areas such as 2m HAM radio, all VHF and UHF (Frequency  range: 27Mhz-3000Mhz)
DMR Radio signal frequency counter.
Easy battery level
Features:
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
Color Display 240x320
Build-in Li-ion battery
Only four-button control means easy to use
Small size allows hand holding.
Auto power off 1-9minutes
Charging battery LED indicator
If Frequency  Counter Cannot Check VHF Frequency
Solutions:
1) Swtich the ATT button into left hand side.
2) Then change the antenna into VHF or Dual band, as customer are using  UHF antenna, but checking VHF band.
Package Contents
1x SF401 PLUS Frequency Counter
1 x UHF Antenna
1x English User Manual
1x USB charger cable
1x USB AC adapter 100-240V
Comparison Between SF-401 & SF-401-plus
Brand Name:
SURECOM HK
SF-401
SF-401-PLUS
DIGITAL RADIO Signal
DMR
No
YES
Signal Attenuation S.W.
-20db
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
Change 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
SF-401/PLUS
CTCSS  (Hz)
50
97.4
151.4
192.8
55
100
156.7
196.6
67
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
118.8
171.3
218.1
79.7
123
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
Customer Service
:
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