Walkie Talkies -
Frequently Asked Questions - Technical
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Cobra
MT800 PMR446
licence-free walkie-talkie
Licenced
Professional
Walkie Talkies
What are the PMR446 channel frequencies?
What are the American FRS / GMRS frequencies?
If I used American FRS / GMRS radios in the UK, who might I interfere with?
What is "Squelch"?
What are the PMR446 channel frequencies?
The 8 PMR446 channels use the following frequencies (in MHz):
1. 446.00625
2. 446.01875
3. 446.03125
4. 446.04375
5. 446.05625
6. 446.06875
7. 446.08125
8. 446.09375
What are the American FRS / GMRS frequencies?
FRS has 14 channels, numbered 1-14 below. GMRS uses the same channels as FRS 1-7, and then adds a further 7 channels numbered 15-22 below. There are many "combination" FRS/GMRS walkie-talkies on the market that have all 22 of the channels listed below.
1. 462.5625
2. 462.5875
3. 462.6125
4. 462.6375
5. 462.6625
6. 462.6875
7. 462.7125
8. 467.5625
9. 467.5875
10. 467.6125
11. 467.6375
12. 467.6625
13. 467.6875
14. 467.7125
15. 462.550
16. 462.575
17. 462.600
18. 462.625
19. 462.650
20. 462.675
21. 462.700
22. 462.725
If I used American FRS / GMRS radios in the UK, who might I interfere with?
In many cases, given the short range of walkie-talkies, you may not interfere with anyone. But: the 462MHz FRS channels 1-7 are used for some emergency service radios, and interefering with these is very illegal and potentially dangerous.
The higher FRS / GMRS channels on 467MHz are used by licensed private users such as TV outside broadcasts, special event organisers etc. They will have paid for the right to use those channels and could complain if they get interference.
What is "Squelch"?
If you had no squelch control, your radio would give out a constant hiss of noise when on receive (think of a broadcast receiving radio that's not tuned into a station).
The squelch control gets rid of this noise by silencing the radio's speaker
unless there is an actual signal being received. On our walkie talkies (and most
PMR446 radios) the
squelch control is completely automatic.
Viewing this site from the U.S.A.?
There are practical & legal issues involved in using our walkie-talkies in the U.S.A.
Please read the page linked below before placing an order.