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Thanks.

It does not say that it is permitted. It says if there were exceptions, they would be listed, and they aren't. Insults from people like you are meaningless to me.

My license was granted on 2025-07-22 and has no mention of Line A or any frequency restrictions.

Watch this:

I'm sure any of those will be nicer to use than my old boat anchors.

Obviously, it appears that you are not a SME on these types of matters or can demonstrated any professional expertise in the analysis and writing of legislative bills, statutes, policies, rules, regulations, ordinances, guidelines, and enforcing such rules, etc. in a government bureaucratic or legal form. My question still is, after the rule says it is permitted, where does it say that the operation of Part 90 radios are restricted or prohibited?

Mirror Mount like truckers, 1/2 wave

duplicate...the forum wigged out

Theoretically? Sure. In practice? I'd be surprised if it was more than a fractional difference all the way at the edge of the performance envelope.

The length of cable needed to get from the tow vehicle to a good spot on the trailer will probably introduce more loss than just using the antenna on the tow vehicle, with the (almost standard) 13'' RG58 type coax that comes with most mag mounts.

That janky cable is usually built into the trailer, and to a connector built into the tow hitch, with a breakaway connection should stuff go wrong. Not something you're stringing across the bed of a truck to a trailer. I guess you can test the failure load of the SO-239 connector on the back of your radio if things ever go really wrong lol

Probably the same as one of the several known features on other 5RMs. Just because the radio can do something, like scrambling and frequency hopping, doesn't make it legal to use. Stick to the basics - we don't need a lot of these new features being added to radios.

It's exciting. Almost like getting to the prize in a box of Cracker Jacks. I can't wait to find out what it is.

There aren't any exceptions specified in GMRS Subpart E for LMR/Part 90. The things you list do not authorize other services; they are just limitations on GMRS. The examples given are references for 2 selected services, not all services in Part 95, that's why it's e.g. There's nothing I can do to make anyone understand what the wording means - you either get it right or you don't.

Those "certain exceptions" are the power levels, bandwidth, allocated frequencies, frequency accuracy and stability, and emission types as listed in each Subpart for applicable frequency being operated. Those rules/regulations are the certain exceptions. In other words, you can operate your Part 90 type-accepted radios on 462.5625 MHz with certain exceptions. Those certain exceptions are: if you do not posses a GMRS license, you are regulated to narrowband emissions and at 2 watts ERP pursuant to Part 95, Subpart B; and if you do posses a GMRS license than you may use either narrowband or wideband emissions and not exceed 5 watts ERP pursuant to Part 95, Subpart E. And if you operate on 154.600 MHz, you will be regulated to the aforementioned exceptions in Part 95, Subpart J. There, those are your "certain exceptions" Yes, there are references to Rules 95.735 & 95.1735 in Part 95.335(a) however, they are only references, and not the context of the subject rule, did you notice the "e.g."? Do you know what the "e.g." means when used? Part 95.1735 was an old rule that more than likely existed prior to the 2017 rewritten/reorganization of Part 95 rules. Obviously, the reference of 95.1735 has been overlooked in 95.335(a) in the editing process since it no longer exist. You said, there are "No Exceptions". Where does it say "No Exceptions", it says under certain exceptions and those certain exceptions are stated in each subpart in respect to the frequency being used pursuant to the respective subpart.

The older GM-30.

You already have a janky cable connecting the lights and likely brakes to the trailer. I don't see how one more cable would make a difference.

Peter Pan. Wife is Tinkerbell

My thought was it removes a great big blind spot.

It also has a Special Feature, so you've got that going for you!

Do you have the older GM 30 or the newer GM-30Plus?

I am thinking to go lugit and get the GM-30 plus. Some of the recent reviews dog it because it is not supported by CHIRP. I opened your link and can not figure it out. Is there a CHIRP update that supports the the GM-30 or did someone just figure out a different profile that works?

You didn't quote the whole text of (a), which does make a difference. (a) Exceptions. Under certain exceptions, non-certified Personal Radio Service transmitters, or transmitters certified for use in the land mobile radio services may be operated. Any such exceptions applicable to stations in a Personal Radio Service are set forth in the subpart governing that specific service. See e.g., §§ 95.735 and 95.1735. 735 is for Remote Control Radio Service. 1735 is GMRS but it's blank (reserved). I'd say that means no exceptions, unless it's hiding somewhere else.

There's enough stuff that can go wrong with towing as it is. I don't know if I'd want to add a janky cable between the tow rig and an antenna on the trailer for the fractional theoretical gain you might get over just having it on the truck which, I'd assume, is where the radio also already is.

Assuming you have enough slack in the coax to allow turning, I can't think of any reason it wouldn't work.