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An interesting question. Some assumptions: - you appear to be focused on Dire Wolf - it seems you are focused on?Raspberry PIs We can state up front that the internal sound capability of th Raspberry PI is inadequate: ?you will?need an add on sound system. You are also left with the challenge of how?to handle?PTT: ?use hand held VOX or wire to PTT circuit in the handheld?speaker/mic connection.? The former is easy but clunky. ?the latter is hard to implement but effective.? The following may work: -? to provide the hardware PTT capability against the standard 6 pin mini-din connector. Examples of Raspberry?PI packet interfaces can be found at: -? which discuss interfaces from?Raspberry PI ((Dire Wolf) to radios through?the 6 pin? mini-din. I discuss?in: -? experiments with the IOS application using a Baofeng UV-5A and a Wouxun KG-UV6D.? Both gave quite acceptable?packet reception performance with packet reception on a par with my D72A.? Volume needed to be set to about 50%. Packet send levels seem to be well controlled by the internal ALC circuitry. The testing suggests that any handheld with the Kenwood?Speaker/mic connection will probably work reasonably well for packet IF you can obtain the needed the PTT behavior. On Mon, Jan 17, 2022 at 1:33 PM Jon Adams <n7uv.jon@...> wrote: I occasionally build porta-digis that need to fit in things like ammo cans and can run on a SLA battery and 10-20 W solar power for indefinite periods of time. This means no mobile radios as their rx modes always burn way to much power. --
AB1PH Don Rolph |
