gcr33 said:
I love that you people keep talking about fire fighters like their job is any different than law enforcement. Please you folks have to got to realize that digital works fine.
No. Not all the time it doesn't, anyway.
It's still a fact that the codecs used in digital radios aren't optimized for use in a noisy
environment, which pretty much defines where fire departments work. This DOES
result in intelligibility issues more often than anyone would like.
Further compounding the problem is the fact that the mics that are integrated into headsets
used in bunker gear are not particularly good sounding mics even under the best conditions
in a fully analog system. In fact, I've heard some that their sound is such that I would be
charitable if I were to say it was "significantly sub-standard". Add THAT into the digital
equation and you've got intelligibility problems galore.
YES, sometimes they work fine, but when you're talking about officer/firefighter safety,
I don't think SOMETIMES or even MOST OF THE TIME is adequate when you're discussing
a communications link that often IS critical for safety.
I'm not in any camp about radio brands. I deal with ALL of them. I learned Motorola first,
M/A-Com (GE) second, and have experience with Kenwood, Icom, Yaesu, Vertex/Standard, Relm, and a few others. And I hear whatever
I choose to, short of encrypted traffic, provided of course that it's within listening range
with a good Yagi antenna. I've experimented with digital and analog modes of operation
with every radio brand and type I've laid my hands on that had the capability, and the'yre
all good to very good in quiet conditions, but with every one of them, start talking with
wind blowing in the microphone, that's bad enough on an analog radio, but it's even
worse on a digital radio. The codecs just don't work well without a good signal to noise
ratio.
I haven't checked this and don't have any way to do so, but I heard that some codecs
not commonly in use (like VSELP) don't even work well with some specific languages,
as they weren't designed for the phonetic variations endemic to some languages, such
as some African languages that utilize glottals, clicks, and pops.
Elroy