Trisquare Communications Inc. GMRS520A 사용자 설명서
GMRS520 – User Instruction Guide – Content Draft
TriSquare Communications
Version 0 (11/9/01)
Page 4
Auto Squelch Feature
The radio is equipped with an automatic squelch system, which shuts off
weak transmissions and unwanted noise due to terrain conditions or if you
have reached your range limit.
Automatic Power Save Feature
Your radio has a unique circuit designed to dramatically extend the life of
the batteries. If there is no transmission within 5 seconds, your radio
switches to the Power Save mode. The radio is still able to receive
transmissions in this mode.
FCC LICENSING INFORMATION
The GMRS520 radio operates on Family Radio Service (FRS) as well as
General Mobile Radio Service (GMRS) frequencies and is subject to the
Rules and Regulations of the Federal Communications Commission (FCC).
The FCC requires that all operators using the GMRS frequencies obtain a
radio license before operating their equipment
For licensing information and applications forms, visit the FCC online at
www.fcc.gov/wtb/uls or call the FCC Hotline at: 1-800-418-FORM. If you
have any questions regarding the license application you can contact the
FCC direct at 1-888-CALL-FCC.
SPECIFICATIONS
Description
Description
Channels
22 FRS/GMRS
Operating Frequency
UHF 462.5500-467.7125 MHz
Power Source
3 AAA Alkaline Batteries
Output Power
500mW ERP maximum
Battery Life
55 Hours – (5/5/90 duty cycle)
Channel Frequency Chart (MHz)
Ch No
Frequency
MHz
Cross Reference
1
462.5625
GMRS & FRS 1
2
462.5875
GMRS & FRS 2
3
462.6125
GMRS & FRS 3
4
462.6375
GMRS & FRS 4
5
462.6625
GMRS & FRS 5
6
462.6875
GMRS & FRS 6
7
462.7125
GMRS & FRS 7
8
467.5625
FRS 8
9
467.5875
FRS 9
10
467.6125
FRS 10
11
467.6375
FRS 11
12
467.6625
FRS 12
13
467.6875
FRS 13
14
467.7125
FRS 14
15
462.5500
GMRS 11
16
462.5750
GMRS 8
17
462.6000
GMRS 12
18
462.6250
GMRS 9
19
462.6500
GMRS 13
20
462.6750
GMRS 10
21
462.7000
GMRS 14
22
462.7250
GMRS 15