The frequency response of a 2 way communications system is well within the
frequency response of one of the 8 KHz sample rate ChipCorders. The only
decision would be to select the longest possible message time.
The ISD1416 gets you 16 seconds, the ISD2560 gets you 60 seconds. Both of
these are probably available through Digikey.
Joe Jarrett K5FOG
*********** REPLY SEPARATOR ***********
On 5/19/2005 at 7:45 AM Don Pomplun wrote:
I wonder if those ISD audio record/playback chips are a reasonable approach for a simplex repeater. (I know there are those who insist on FM Broadcast quality, but for communication in a noisy environment like a railroad, it doesn't seem an issue).
73,
Don
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