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Kenwood TK-880-1 or TK-880H-1 series (RJ-45 8 pin mic) uses the Kenwood KPG 49D software Kenwood TK-863G uses the KPG 76D software. The programming cable for both of these Kenwood series is the same - just one example of many: https://www.amazon.com/SUNDELY-Quality-Programming-Kenwood-TK-863G/dp/B00CW66KPE

Since this discussion of used GMRS equipment is a topic drift from the original antenna topic of this thread. I have created a new topic to continue the equipment discussion... if there is interest.

So, the other day I was listening to the W2NJR ham radio network and heard an alert go out with an electronic statement "Thunder Storm Warning." Basically, the W2NJR system uses the NOAA SAME code for the area to get weather alert and warnings. It then re-transmits the information following the coded signal, which is how the system knows what warning it is giving. This is legal on ham radio but what about GMRS? I am not planning on adding this feature to my repeater but if its legal I would think other systems could make use of it. The idea has just made me curious.

The Midland MXT275 discussion has drifted off-topic to include a discussion of used commercial quality radio equipment for GMRS use. I thought, perhaps, there might be a benefit to have a listing of specific radios, accessory requirements (programming cables and software), availability and resources. It would be nice to have this information in a database of some sort, but a thread, perhaps sticky, might also do the job. The goal would be to give people a place too look for options to buying new GMRS equipment. The basic information, as noted above, would be: Radio manufacturer, model, and, if applicable, variants.Price range for used equipment, and potential sources (usually ebay)Warnings or tips on what to look for or avoid.Programming hardware requirements. (I.e. programming cables) and, if available, sources.Software. Application name; most recent version; download location; and price. (for legally available software only) Any other usage and programming notes that would be helpful to users.Part95 compliance information.Recent radios discussed were: Kenwood TK880-1 (25 watt) or TK880H-1 (40 watt) TK863G (25 watt) Motorola M1225Motorola XPR7550Motorola CDM1250Motorola HT1250

For those interested, the link to bluemax49ers' Ebay shop is https://www.ebay.com/usr/bluemax49ers

+1 for bluemax49ers on EBay. I've got a couple of his cables and they work flawlessly. His prices are very fair, too. On the subject of cables, I purchased a CDM serial cable from RF Guys years ago. It has always worked well but knowing what I know now about the market, IMHO they are a tad overpriced. The one I have from bluemax49ers is of equal quality and performs just as well.

Short answer, sometimes you can't. Longer answer. It is a little like religion, it takes a good dose of faith. Well, assuming you have monitored this repeater for very long periods and heard nothing... If you know the access tone(s) you can key the repeater up and listen for the squelch tail. If they don't have a hang timer (no squelch tail), then you need to listen to the repeater output on another radio. But, if you don't have the access tone info (and don't want to spend a day trying all of the known codes), and don't hear anybody on the repeater, then, it is a little bit like if a tree falls in the woods and nobody hears it, does it make a sound? Or, maybe like division by zero, it is undefined. Actually, the best analogy may be Schrödinger's Cat The existence of the repeater is determined only when you access it.