[Elecraft] Delay in RF/Audio output on my K3

[Adrian]

Gary, Yep he should try a RF cal, I did it many,many,many many times just
like the guy in Police Academy.

It came good and then would come and go being an issue at random moments,
and I lived with it until I

came across the 15v idea and then no more. I noticed all of a sudden how
op's kept qrg just 1 to 2 kc away

from me as they could not hear my signal, i.e, much narrower now.

 

I run 2.2kc audio bandwidth and sounds good on the CM500 doesn't it Gary? 

 

TxEq    50,100 & 3.2k all at -16.   The rest:  200= +2    400 = +4    800 =
+6   1.6k = +6  2.4k = +4

 

These are the magic vk4tux cm-500 audio settings as above. 

 

I used 10mm here,  about 16" long. Sw/mde pwr supply sits neat & close on
the P3.

 

What is your K3 display volts at 110w keydown Gary? I think it is impossible
to do better than 0.4v voltdrop

fully loaded. My range is from 15.2 to 14.8, A guy I worked in Hawaii was
very interested in what I was doing

when he had a close look at my signal at close span on his P3, and was going
to set his K3 up the same way.

 

Cheers

 

Adrian

 

From: Gary Gregory [mailto:garyvk4fd at gmail.com] 
Sent: Wednesday, 11 April 2012 5:13 PM
To: Adrian
Subject: Re: [Elecraft] Delay in RF/Audio output on my K3

 

Adrian,

In his case he still needs to do an RF CAL (which I told him to do). I also
replaced my power cable to 6mm and used the 40amp Power pole spades and I
use 14.1V from the powerwerx and a lead that is only 12 inches long.

No issues for years mate..:-)

gary

On 11 April 2012 16:51, Adrian <vk4tux at bigpond.com> wrote:

This was one of the things that used to always annoy me about my K3 until;

I set it up for 15v with a heavy duty cable to replace the factory supply
cable.

Now I get full power at instant on turn on, all day long.

I think it is the current sensor knocking back the power until things settle
down, but at a stiff 15v
everything plays nice. I never see high current warnings like I used to
either.

The 15v HD cable setup I implemented fixed every aspect of K3 problems I did
not like.

Adrian ... vk4tux

-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of
redtarga4 at nycap.rr.com
Sent: Wednesday, 11 April 2012 7:27 AM
To: elecraft at mailman.qth.net
Subject: [Elecraft] Delay in RF/Audio output on my K3

I've started to notice when I first turn on my K3/100 (#6131). there appears
to be a delay in reaching full RF output. I start calling a station and
notice almost no RF or audio but after a minute or so, the power is full
scale and the Audio level is working fine. Any suggestion why this may be
happening?? I have several microphones and it happens with all of them. It
does not happen on CW.. Just SSB.

Thanks in advance..

73

Steve/k2we  Saratoga Springs, NY
K3/100 #6131
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-- 
Gary
VK4FD - Motorhome Mobile
Elecraft Equipment
K3 #679, KPA-500 #018
Living the dream!!!