[Elecraft] [K2] VOX on digital modes?

Parker Buckley pbuckley at woh.rr.com
Mon Oct 27 09:26:54 EST 2008


Don,

Thanks for the quick reply.  I expected you would jump on my question!  I'll
stick with the PTT setup.  I'm looking at options for going portable with a
laptop, and VOX may have made that easier. 

I hear you about the K3.  I keep looking at my Hallicrafters gear, thinking
I could turn that into a K3 at the next Hamvention....

73,
Parker

-----Original Message-----
From: Don Wilhelm [mailto:w3fpr at embarqmail.com] 
Sent: Monday, October 27, 2008 9:51 AM
To: Parker Buckley
Cc: elecraft at mailman.qth.net
Subject: Re: [Elecraft] [K2] VOX on digital modes?

Parker,

The K2 VOX does not work well with PSK - by the time the audio is 
cranked up enough to trip the VOX reliably, you will be driving the 
audio input too hard and the transmitted IMD will suffer.  The VOX in 
the K2 works OK for voice, but not as well for the more steady audio 
tones of soundcard digital modes, so I recommend you stay with the PTT 
operation - since you apparently already have that working, I see no 
advantage to change.

The K3 VOX OTOH is very smooth and will work quite well for afsk data modes.

73,
Don W3FPR

Parker Buckley wrote:
> Is there any fundamental reason why I can't use VOX control while running
> PSK with my K2?  I've never used VOX with this rig on SSB, but I assume it
> works okay.  I recall much discussion about lack of mic gain not
triggering
> the VOX, so I'm wondering if that is also limiting what I can do running
> digital modes.  If so, I'll stick with PTT.
>   
>




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