Guys,
I have been fighting with a couple of GR1225, trying to get it to accept a CDM1550LS+/CM300/PM400 radio as a rf link. With the CDM, everything works well, except the CDM will not tx a PL or DPL. The CM/PM radios each have their own issues, mostly with causing the R1225 to lock in tx mode when a signal is received on the link radio. Also, with the CM/PM the audio passed from the link radio to the R1225 is poor/low/non-existant. All units are in working order (assumption based on the number of different radios tried) and have latest firmware. This system is a point to point link of UHF repeaters operating in the high 464 range using low wattage link radios in the low 450 range. This system was of course sold and previously installed by someone else. Only constant in this is the GR1225, I will be trying different units next in case I selected a funky unit. My cable and programming is based on the below referenced link:
http://batboard.batlabs.com/viewtopic.php?f=1&t=74260
Thank you, FatBoy.
R1225 link radio FAIL......
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R1225 link radio FAIL......
......I understand what the package says sir, but you cannot talk 28 miles with 3 AA batteries.......
Re: R1225 link radio FAIL......
Introduced the other GR1225 into the picture. I had same issues with mobiles and repeater. I then took a different CDM and hooked it up and it worked!! After going line by line in the programming, the original "bad" CDM had Option Board set to Disabled and "FLAT TX audio" checked in the same screen as the Option Board. Changed Option Board type to Advanced & Voice Storage and away we went. FYI, Motorola says that a CM/PM will absolutely NOT work as a R1225 link radio. FatBoy.
......I understand what the package says sir, but you cannot talk 28 miles with 3 AA batteries.......