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Not unusual. Also remember some licenses for mobiles and control stations (and temporary base/repeater/fixed) are for an area of operation that is a radius around a point.

Texas Parks & Wildlife Dept has one in Mexico 60 miles W of the actual location. https://www.radioreference.com/db/fcc/callsign/KFR372 And according to Google Earth the tower on FM 755 was taken down sometime between 1995 and 2003 but they never modified or cancelled the license.

Some services don't require site-based licensing so the FCC doesn't care or know where transmitters are located.

Maybe the MD-750 is the same as one of these https://www.buytwowayradios.com/blog/2019/03/how-to-unlock-tyt-dmr-radios.html

Thats what it looks like to me too. Also the brass part in the antenna is missing the O-ring.

Check these out. The menu structure is probably almost the same. https://www.miklor.com/COM/Review_GMRS-V2.php https://www.miklor.com/COM/Review_GM30.php

It probably has 22 GMRS/FRS channels that can't be changed. If that is the case then channels 1-22 should be the same as any other FRS radio. It probably has at least 8 more channels for GMRS repeaters. Since I have never used one I have no idea how you program CTCSS/DCS on the 22 simplex...

I don't have one so I can't help that much. I don't know how the GMRS model differs from the amateur models. I have no idea what power-on kepad functions it has. It probably has A and B displays like many other Chinese radios. It probably has a menu function for TDR (toggle dual receive) that...

If you are using the FCC Equipment Authorization Search page you have to spell everything correctly. The grantee code can contain dashes and other characters. https://apps.fcc.gov/oetcf/eas/reports/GenericSearch.cfm

You slected the wrong radio model in the dropdown menu. There is a 2AJGM-P52UV. Try -P52UV. The dash is part of the product code. According to the FCC documentation To Whom It May Concern: We, The PO FUNG ELECTRONIC(HK) INTERNATIOANL GROUP COMPANY hereby declare that the model : P52IC...

I think there was a thread about that a few years ago. It may not be the same group but there was some ham/whacker group with a trunked system. I think it was in the Austin area on a combination of itinerant, GMRS and ham frequencies. I don't remember exactly and can't find the thread now.

I didn't see the video link yesterday. If the weather station is strong enough that you can receive it without and antenna and then you put the antenna on the mount and it makes a rapid pulse type noise like that then it's not an antenna or coax or mounting problem. Something is wrong with the...

If you want a full-featured amateur radio with capabilities like other bands besides UHF, front panel programmable, VFO mode, band scanning, and also does GMRS legally (part 95 certified) then I don't think one exists.

There is none. You can't fix poor receiver performance due to poor design of cheap Chinese radios.

If J-poles are so good then why are they not currently or ever in the past made by Andrew, Decibel, Phelps-Dodge, Commscope, Comprod, Sinclair, Telewave, etc. and why do you never see them in commercial or government installations?

Friends don't let friends use J-poles.

95.1763 (d) 467 MHz interstitial channels. Only hand-held portable units may transmit on these 7 channels. https://www.ecfr.gov/current/title-47/chapter-I/subchapter-D/part-95/subpart-E/section-95.1763

Probably the smallest directional antenna with gain over a dipole is a Moxon Rectangle. https://www.antenna2.net/cebik/content/moxon/moxpage.html

It means an application has been filed but has not yet been processed or acted upon.

https://www.radioreference.com/db/nationwide/coid/1 It's under National Weather Service. https://www.radioreference.com/db/aid/7765