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Firmware Question: CDM1550LS+ LTR operation

Posted: Sat Apr 21, 2012 8:05 am
by rj_bart
Hi. I have a CDM1550LS+ in UHF running (barely) on an LTR system. The Firmware in use is old, I mean really old...these are older, NOS radios.
What version should I look to upgrade to for "reliable" LTR operation? I read about LTR issues (missing calls, etc.) related to older firmware.

Any advice is greatly appreciated.