[Elecraft] K3 MCU 4.17 (APF beta) kills SSB output?

[k2qi.nyc at gmail.com]

Well, rolling back is worth a shot. I've never had problems reverting to previous versions. Plus, look at it this way - what variables have changed? If this issue manifested itself after the last fw update, then that should be a good place to start.

James K2QI
Sent via BlackBerry from T-Mobile

-----Original Message-----
From: Nate Bargmann <n0nb at n0nb.us>
Sender: elecraft-bounces at mailman.qth.net
Date: Thu, 4 Nov 2010 18:30:44 
To: <elecraft at mailman.qth.net>
Subject: Re: [Elecraft] K3 MCU 4.17 (APF beta) kills SSB output?

* On 2010 04 Nov 18:23 -0500, Dave, W8OV wrote:
> I had no loss of SSB power output after the 4.17 Beta install.  The APF 
> works wonderfully, with only a hint of ringing to my ears.  Really nice 
> addition to the K3.

At least some of you aren't seeing this.  :-)

James Rogers suggested turning the Mic gain to 0 and then back up and he
was getting good output.  After I did that, I could only get about 25
Watts peak on both meters.  I switched to CW mode, transmitted a short
carrier which showed 100 Watts on both meters (power control set to
100).  Switching back to SSB both meters showed about 70 Watts.  I have
since bumped TXG VCE up to the max, 3.0 dB and am getting about 90 Watts
peak on each meter (I say fourrrrr in a normal voice to get the K3's
meter to stabilize for a bit).  I had previously had TXG VCE set to 1.0
dB.

I'm not sure that rolling back to the last stable firmware would solve
this or be fraught with other issues.  Generally, roll-backs don't work
all that well in other devices.

73, de Nate >>

-- 

"The optimist proclaims that we live in the best of all
possible worlds.  The pessimist fears this is true."

Ham radio, Linux, bikes, and more: http://n0nb.us/index.html
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