tweiss3

I'd put money that neither is genuine: https://www.ameradio.com/product/101281/description.html

KMC-45D

Are you able to hear ok with the speakers under the rear seat? I mounted my Kenwood decks to the underside of the seat to keep them off the floor.

You need the antennas to be 25' apart, one directly over the other, to achieve the isolation of a duplexer. That is 25' from top of bottom antenna to bottom of top antenna. If they are not directly 1 over the other, you loose your isolation. For horizontal separation, you need 2000'+ apart to get the same isolation as vertical separation, or a duplexer. 40' apart and at slightly different elevations is not enough, you are getting desense, which is 1 reason you are getting no range out of the repeater. As for 30W vs 40W, the difference in the field is minimally noticed, you are still limited in range by height you get the repeater, not wattage. When figuring height for how far the repeater can reach, you need to use the bottom elevation of the bottom antenna.

The wrong steps will do that....... For what it's worth, my Kendwood D74 did receive air and ok, but it was significantly quieter than FM signals.

Airband is AM modulation, as opposed to FM modulation. AM can sound quite or appear to have an echo, but the reason it is used because you can hear two signals at the same time, as opposed to FM where one "wins" the battle for the air, and weak signal work is easier in AM. AM won't ever sound as clear as FM, with open and closing squelch. Also, you may or may not hear the pilots, since it's all simplex, not like monitoring a repeaters. Your sound issues might be related to antenna, or just bad sensitivity on the radio. The best AM reception radio I had was a FTM400, and it picked up the airport from quite a ways out. It could also just be the cheap speaker on the radio that doesn't respond well with AM.

There is already a GMRS repeater in Brunswick. Also look into Medina County ARES https://ohioares10.ad8g.net/medina/. It would probably be a good idea to not duplicate efforts/protocols to increase the chance of making meaningful contact. Perhaps reach out to see about including GMRS as a secondary line of communication.

The real reason is because we agreed in the 50s that Canada can do whatever they want and we can't interfere. I know people in the industry that had to replace aging towers by building a new one 50' to the side, when updating the coordination Canada said "we now have a system on that frequency, too bad so sad" even this previous tower/coordination had been there for 30 years prior. Wrecked the project a good 12 months for re-coordination. I applaud the question and inquiry. It's always good to learn more. It took me a good 3 months after pouring though the Part 90 regs and all it's references, and coming up empty handed, before I found that agreement where it's pretty much buried that there is a 5W ERP limit before Canada gets a say. I think it was 2 years ago, I posed the question on a amateur radio net I was running, who knew what Lines A & C were, where they were located, and how it affects amateur radio. The answers were all "what are Lines A & C". It was sad, considering the area of the net is pretty squarely centered on Line A. Hint, look up information about the 70CM band (Part 97.303).

That's an interesting response. Expect any change to take decades. The US is still bound by international agreement with Canada, anything above line C, exceeding 5 watts ERP, must be coordinated with Canada, regardless of FCC "service" (industrial/business, public safety or federal) or end user. Page 10, item 4 (a): https://transition.fcc.gov/ib/sand/agree/files/can-nb/above30.pdf This is why there is a Line C comment on itinerant business licenses over 5W stating "Location X Special Condition: Area of operation is restricted to south of Line A and/or west of Line C" and the note on itinerant business licenses of 5W or less stating "Operation on this frequency is on a non-interference basis to Canadian operations and you must accept all interference from operations in Canada. Licensee is responsible for resolving any complaint of interference to Canadian systems arising form operations on this frequency, including, if necessary, cessation of such operations." After discussions with the FCC, it's a Catch 22, because itinerant cannot and are not coordinated by definition, thus you are stuck with the restrictions. This is the same with GMRS, without revision to the previously coordinated 50W channels, or reduction of the allowable power to 5W, we are stuck with Line A & C. I can wish it would be changed, I don't see it happening. It does beg the question of why those 2/4 frequencies were not previously coordinated, as well as the itinerant frequencies, but the Government rarely makes sense.

I see there is a plugin for SDR#, you could try to see the difference between both radios, but it will still require you acquire a dPMR446 radio for testing.

I'm seeing zero documentation between 446 license free and Mode 1/2. You don't happen to be getting a license free radio as well? I would think it may be as easy as some attempts between programming to figure it out. You can look at the manual for a dPMR446 radio, like the Icom IC-F29DR2: https://www.icomjapan.com/api/download.php?post_id=1747&fl=JTJGdXBsb2FkcyUyRnN1cHBvcnQlMkZtYW51YWwlMkZJQy1GMjlEUjJfSU1fTXVsdGlfMmEucGRm Page 13 outlines frequency/common ID:

It is a great radio, but in my mobile use case it falls short. I was hoping to get over the few issues, but I'm annoyed enough that I'm looking (not really finding) for something else. 1) Typical Yaesu, actually operating the radio (changing modes, VFO to memory, etch) is horrendous, and I consider it bad enough it's not useful while in motion. 2) The memories are a pain. Changing groups is ridiculous, and they won't allow repeater offsets to change. 3) I can't get the large/small steps for frequency tuning to work the way I want. It does for a short time, then i screw it up again (reference no. 1).

There was a lead time last I checked, but I found one at a hamfest for about half the price. The inclusion of 80m is a big plus as well. I've heard the ATAS can be injured by tuning while in motion. Either way, having HF mobile is a huge plus. Now I just looking for something better than the 891.

Get the little tarheel ii and autotuner, works better and can tune while in motion

I submitted comments because I don't want to loose 902 for amateur radio.