| Question: What are the GMRS frequencies? |
Answer: There are three sets of GMRS frequencies available, depending on the station type. The first set of frequencies is shared with FRS radios.
| Usage |
Frequencies |
Mobile Stations
Small Base Stations operating in the simplex mode |
462.5625 MHz |
| 462.5875 MHz |
| 462.6125 MHz |
| 462.6375 MHz |
| 462.6625 MHz |
| 462.6875 MHz |
| 462.7125 MHz |
Mobile Stations
Base Stations
Mobile Relay Stations
Fixed Stations |
462.5500 MHz |
| 462.5750 MHz |
| 462.6000 MHz |
| 462.6250 MHz |
| 462.6500 MHz |
| 462.6750 MHz |
| 462.7000 MHz |
| 462.7250 MHz |
Mobile Stations
Control Stations
Fixed Stations in a duplex system |
467.5500 MHz |
| 467.5750 MHz |
| 467.6000 MHz |
| 467.6250 MHz |
| 467.6500 MHz |
| 467.6750 MHz |
| 467.7000 MHz |
| 467.7250 MHz |
Back to GMRS Radio Index
|
| Question: What are the GMRS CTCSS frequencies? |
Answer: The CTCSS frequencies used by Motorola are different from those used by RadioShack. The chart below shows the frequencies used by each.
| Tone |
RadioShack |
Motorola
Sport |
Motorola
TalkAbout |
| 67.0 |
1 |
|
1 |
| 69.4 |
2 |
|
|
| 71.9 |
3 |
|
2 |
| 74.4 |
4 |
|
3 |
| 77.0 |
5 |
A |
4 |
| 79.7 |
6 |
|
5 |
| 82.5 |
7 |
|
6 |
| 85.4 |
8 |
|
7 |
| 88.5 |
9 |
B |
8 |
| 91.5 |
10 |
|
9 |
| 94.8 |
11 |
|
10 |
| 97.4 |
12 |
C |
11 |
| 100.0 |
13 |
|
12 |
| 103.5 |
14 |
|
13 |
| 107.2 |
15 |
D |
14 |
| 110.9 |
16 |
|
15 |
| 114.8 |
17 |
|
16 |
| 118.8 |
18 |
E |
17 |
| 123.0 |
19 |
|
18 |
| 127.3 |
20 |
F |
19 |
| 131.8 |
21 |
|
20 |
| 136.5 |
22 |
G |
21 |
| 141.3 |
23 |
|
22 |
| 146.2 |
24 |
|
23 |
| 151.4 |
25 |
|
24 |
| 156.7 |
26 |
|
25 |
| 159.8 |
27 |
|
|
| 162.2 |
28 |
|
26 |
| 165.5 |
29 |
|
|
| 167.9 |
30 |
|
27 |
| 171.3 |
31 |
|
|
| 173.8 |
32 |
|
28 |
| 177.3 |
33 |
|
|
| 179.9 |
34 |
|
29 |
| 183.5 |
35 |
|
|
| 186.2 |
36 |
|
30 |
| 189.9 |
37 |
|
|
| 192.8 |
38 |
|
31 |
| 203.5 |
|
|
32 |
| 210.7 |
|
|
33 |
| 218.1 |
|
|
34 |
| 225.7 |
|
|
35 |
| 233.6 |
|
|
36 |
| 241.8 |
|
|
37 |
| 250.3 |
|
|
38 |
Back to GMRS Radio Index
|
| Question: What frequency is the MURS (Multi-Use Radio Service) on? |
Answer: The FCC recently created the up to 2 watt MURS (Multi-Use Radio Service) from the following five frequencies: 154.570 (Blue Dot), 154.600 (Green Dot), and also 151.820, 151.880, and 151.940 MHz. Handheld radio model numbers are 190-1206 and 190-1217, and our mobile VHF radio is the 190-1210. Because the 190-1210 is rated up to 5 watts, you might wonder if it is legal. Since the radio automatically cuts power back when tuned to those 5 frequencies, it is.
Back to GMRS Radio Index
|
| Question: I need the ERP and Emission for the FCC application. |
Answer: The Emission designation is F3E. ERP is generally not available for busines band radios as it is not the measurement methodology used for this band. The ERP would change depending on the efficiency of the antenna used. Instead, we state the power in terms of Input Power. For many radios, the measurement will depend on the input voltage ... the higher the voltage, the higher the max power, for example: 3 Watts at 7.2V; 5 Watts at 12V.
Back to GMRS Radio Index
|
| Question: How do I change the frequency on my radio? |
Answer: We regret there is no information available on how to change the frequency selection on the GMRS radios sold through Radio Shack. Federal law prohibits unauthorized personnel from making internal adjustments to the transmitter unless specifically licensed to make adjustments or repairs. This information is not included in the owner's manual for this reason.
Back to GMRS Radio Index
|
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