The H01Kxxxx are VHF models, they'll natively do down to 146MHz.
Good for 2 meters, not good for GMRS. You'll need a UHF model to do GMRS.
These are pretty decent radios. The issue that usually crops up with them is that the LCD screen will start losing pixels. Other issue was the antenna jack would come loose and the solder joint would break.
To program them, you'll need a PC running the Motorola software. The -legal- place to get the software is from Motorola. They are pretty strict with the software licensing. You may be able to find it with a good web search, but I'm not telling you to do that. Not telling you not to either.
You'll need a programming cable, too.
The usual way of doing this is to purchase a RIB (Radio Interface Box). That was a common unit that Motorola sold that converted from RS-232 to TTL to talk to the radio. You'd then purchase a RIB to Radio cable.
It's much easier to go on e-Bay and purchase the cable with the built in RIB. Cheaper way to do it, and if you get a good one, it'll work well.
Programming is a challenge, and I won't go into that until you have the software in hand.
Since these radios are already programmed, you might do well by just reading the radio and making the changes you need.
You'll likely be able to program these down to 144, but I don't recall the procedure for these.
Batwing Laboratories can be a good source of info.
Durable radios with a wide selection of accessories. Lots of them still in service. If well taken care of, you scored big. Batteries will run you $35 or more each, depending on what brand you buy. I'd always had good luck with the Honeywell branded batteries, NiMH models.
