CB RADIO'S

[gc2488]

Yes, that's a very good question about FRS actually. Here is a little more info as I understand it.

FRS (Family Radio System) radios use FM modulation just like popular VHF/UHF Amateur Radio transceivers (Ham Radio). This generally sounds a lot better than the SSB modulation used by CB (and some other Amateur and Government) radios, although SSB is more efficient and can go farther on its on (without use of repeaters).

Technically, one can at least receive and even transmit on FRS frequencies with Amateur Radio equipment, although the transmitting part would be illegal except in the case of emergencies.

Here are the specific FM frequencies used by FRS radios:

Channel No. (MHz)

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

That was easy to find using Google and was from:
http://www.panix.com/~clay/scanning/...cies/frs.shtml

By comparison, on of the many Amateur Radio bands goes all the way from 420 to 450 MHz, just below those. Amateur Radio transceivers (including home-made equipment) can transmit in that range using a huge amount of power and antenna combinations -- up to 1500 watts out of the transmitter even before antenna gain is applied. The rules allow that much power but typically 30 watts or less is used (and adequate for line-of-site purposes).

That same web page says the maximum power (ERP, Effective Radiated Power) for FRS radios is just 0.5 watts. So, they're pretty limited in range because of that and because repeaters and linking is not available.

Fun...

That's regarding the previous posting:
stupid question, frs hand radios, do they communicate with CBs or is that a different frequency... Thanks for the help.


Thanks for the comments about running coax and installation on the H3!