[Elecraft] KX3 drifting downwards

[André ..]

Hello Joe,

Thanks for your advice , its seem that this setting is the problem it was on my kx3 as standaard config :  PTT UP/DN
I changed now to PTT en start with testing ....

Thanks agn André C5YK
________________________________
From: joseph beck <joseph_beck at me.com>
Sent: 05 December 2018 15:09
To: André ..
Cc: elecraft at mailman.qth.net
Subject: Re: [Elecraft] KX3 drifting downwards

I don’t have manual or radio handy so can’t tell you exact setting, but ... go into menu and disable mic up down button function. See if that works. It worked for me

Joe
W1GO

> On Dec 5, 2018, at 08:40, André .. <on7yk at hotmail.com> wrote:
>
> Hello to everyone .
>
> I have a brandnew KX3 and have the following problem .
>
> Using the KX3 in SSB or CW mode then he start to drift downwards with 1Khz almost every time when the KX3 going in TX mode  (push the mic or footswith or  the keyer ) .
>
> In Data mode there is no problem ..using wsjt-x
>
>
> Configuration  :
>
> 1.      Power Supply  DM-330MVE  = 13,8V dropping in TX to 13,6 V
>
> 2.      KX3 10242 connected with all original cable from Elecraft  to the power supply and PC
>
>
>
> On FT8 mode  freq : 5.357
>
> Power : 0,9 watt  on kx3
>
> Start at   : Osc = 27 ° Celsius
>
> After 15 min : 31 °
>
> After 60 min : 34 °
>
> No drifiting !!!!!!!!!
>
>
>
> On FT8 mode  freq : 14.074
>
> Power : 1 watt  on kx3
>
> Start at   : Osc = 34° Celsius
>
> After 15 min : 35 °
>
> After 60 min : 37 °
>
> No drifiting !!!!!!!!!!!
>
>
>
> On SSB / CW mode  freq : 14.290
>
> Power : 1watt  on kx3
>
> Start at   : Osc = 29° Celsius
>
> After 15 min : 33 °
>
> After 30 min : 35 °
>
> Drifiting downward !!!!!!!!!!!!!!!!!
>
>
>
>
>
>
>
> ​My  KX3 is drifting when I use USB or CW mode  NOT on FT8 mode with the same configuration  .
>
> 1.      He start to drift downward every time when  go to TX  (  push   the PTT ( or foot ) switch  ) or the keyer .
>
> 2.      Blocking  VFO A  make no different .
>
> 3.      When I work SPLIT  in SSB VFO A  is drifting  downwards and VFO B stay stable !!!!!!!!!!!!!!
>
>
> When I have a pileup and qso's  going very fast  I must correct continuously adjust the frequency with the dial knob
>
>
>
> It seem that this NOT a temperature problem  , does anyone have the same problem
>
>
> 73' André C5YK /ON7YK
>
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