On 06/02/2012 05:01 PM, Ed W wrote: > - Iridium is not clear on codec. They certainly have data channels of > a touch under 3.5kbit before framing, and a user data channel is > 2.4kbit + FEC. I would guess that like the mini-M they use a > 2.4Kbit+FEC AMBE codec. I don't know if they changed, but the original spec for Iridium used a codec called PSELP at 2.4kbps. Iridium came from Motorola's defence group, and a lot of what they did reused things developed for the military. I believe PSELP was among those things.
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