Huh, this is news to me so thanks for cluing me in. Care to explain how that works or maybe you have a link to some good reading material on it? I'd love to find out more on this, I'm not particularly radio savvy but it's something I'd like to work on.
Edit: I've done a bit of searching and I may have come up with something close to an answer. Does this have to do with antenna gain? If I understand correctly a high gain antenna makes the transmitted signal more powerful but also more directional. Am I on the right track here?
Since FRS radios all have non removable antennas and are limited to .5W doesn't that make it technically illegal to operate most gmrs radios (icom, etc with removable antennas and 4-5W output) on pure FRS channels?
Do I understand correctly that pure gmrs channels do not have power limitations? I always assumed that any limitations were on the radios themselves, not radiated power, vut then again I did realize that there could be such a difference until now.
So is the 5W limit on gmrs/frs shared channels a limit on the radio itself or a limit on the radiated power? Since radiated power seems like it would be hard to measure for the average user I would think that the restriction would be on the hardware itself hence the 5W rating that are typical for common GMRS radios or is this not the case?
Radiated power, ERP. Although most radios transmit well below 5W so its hard to say if changing the antenna would result in going over the limit. You would need to find the current radiated power, the gain of the stock and aftermarket antenna and do some math.
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Just use your head about it. Avoid using a huge whip antenna in a backyard game. If you pick up other people not playing airsoft on that frequency, change antennae or switch channels. As long as you aren't creating a problem, nobody will ever notice. It's not like the FCC has guys driving around looking for powerful GMRS signals.
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Good advice, I'll be sure to follow it. I ended up scoring the antenna for $16 on ebay so I'll give it a try once I get my comms all sorted out. I going to try to get ahold of the specs on it to figure out exactly how much power I'll end up putting out.