I've used "real" PTT via digirig on HT with both digirig and digirig lite.? Been a while tho.?
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There are at least two ways to PTT with a digirig.? One is via the serial port. This is only with a regular digirig since the lite doesn't have a serial port.? The other way should work on both and works through a GPIO pin on the audio chipset.? They call this "RA Board" or "GPIO3".? I've used this method with VARA FM (Winlink) with Baofengs.? Never used VOX on them.? It think actually triggering PTT is way more gooder than VOX.
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You also see support for it in flrig.? I can't remember if you have to use the "CMedia" or "GPIO" PTT method in flrig config.? But if you have a full size digirig, you may can just use COM port.? Again, It's been a while.
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Digirig Lite is a real sweet setup for HTs.
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W4MRP