[Elecraft] KX3, VOX, and PSK

[Richard Ferch]

If your intent is to run PSK from the usual kind of PSK software that 
works with non-Elecraft radios, i.e. software that generates a PSK 
signal at audio frequencies to be fed into a radio's microphone or line 
in input in SSB mode, then you should be putting your KX3 into DATA A 
mode. DATA A is basically a specialized version of USB, with audio 
equalization and compression disabled and different default filter 
settings. VOX works in DATA A mode.

To use PSK D mode, you would need software that sends the ASCII text you 
want to send to the radio via the radio control port, and that controls 
TX/RX switching via the same pathway. Standard audio-based PSK software 
that works with non-Elecraft radios will not work with PSK D.

73,
Rich VE3KI


Randy Buckspan wrote:

> I want to run PSK via my iPhone and KX3 using an interface that requires
> VOX to trigger transmit.  With the KX3 in DATA Mode and PSK D, VOX is N/A.
> My only choice is to run USB and enable VOX.  Is there a way that VOX can
> be enabled in DATA Mode, or am I missing something?