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Welcome to MyGMRS. Repeater input frequencies cannot be used for simplex communications by rule. They are reserved for repeater inputs only as to keep those frequencies clear for such use.

That may be a very good thing. Let’s us all be good stewards of the GMRS service by our example so it does not run away from us and turn into trash like CB did in so many places. Michael WRHS965 KE8PLM

Inside is fine. You could use metal window screen material, an asterisk of aluminum HVAC tape, chicken wire fencing, or any other electrically conductive material. Just make sure the ground side of the antenna mount makes good contact with the ground plane material. Probably have to use a “thick mount” NMO for a fiberglass roof. We do this all the time for ambulances, RVs, etc.

I'm in the same boat and have not installed my Midland as did not know what to do with the extra cable... One person said do not coil it up... We are standing by for a good and correct answer... Jack and for Kevin as well.

Thanks for your feedback!

After spending $70 on it, I use it every chance I get.

As a GMRS licensee they (and you) are required to use them. I live near Cincinnati. Around me, both repeater and simplex users alike seem to use them pretty religiously. There is even a local GMRS father that is teaching his 7 year old son to use GRMRs per the rules. Pretty cool seeing a father take his role seriously. Remember that GMRS shares 22 of 30 frequencies with FRS, and FRS users do not need to have a license and callsign, so one cannot always assume that those not giving there callsign are actual GMRS licensees. They could be simplex FRS users. Now, if you are hearing them truly from the repeater (not just simplex users using the main GMRS frequencies and code that you are), then yes they must have a license and must be using there callsign. Best way to get people to use their callsign is to lead by example. Michael WRHS965 KE8PLM

On my CJ7 I screwed the metal to the roof. Did a 12x12 piece as that's what home depot had. After screwed down and hole for mount drilled I rhino lined the top. Unless you looked hard you could not see it. Sold to a buddy and he still uses it on his CJ with a GMRS antenna. I am looking to do the same on the JK top but need to find a brake to ben the ribs in a piece of metal.

Just got mine, just started testing and so far it looks like its going to be a great radio for the price. I live in Galax, Va, and on low power hit the Stone Mountain, NC repeater with a great signal report that is 31 miles away indoor with stock antenna, very nice. so more to come Ed WRKU609 W4EDS

Ooops I’m the owner of a couple machines in Idaho falls, and west Yellowstone, I also have a 220 ham machine set up on one of the mountaintops, Id like to see about helping out in twin... maybe linking sone machines up for a bigger foot print, both gmrs and ham 220.

Nope. I'm in Westerly, and the closest one to me that I can hit is in New London, and I've requested permission twice so far with no response. All the other one's are out of range for me. There's another one on Long Island I can hear sometimes, but it's another one you need permission to use, and I don't think it's even there anymore, as I didn't see it on the list, and the last time I heard it someone was clunking it about 2 months ago...

Not to worry. the difference is only just over 4db. You can more than make up for that by antenna choice. But, you can only use that power on channels 15 to 22 and the repeater inputs. on the other 14 channels the limit is 5.0 or 0.5 watts ERP. Enjoy your radio.