[Elecraft] P3 drift

[Victor Rosenthal 4X6GP]

I think that if it were the K3, then I would hear a change in the pitch 
of a signal over the first few minutes, and I haven't noticed that.
I think I'm going to do a more careful test: tune to RWM (the Russian 
version of WWV, which is good and loud here) and see what the change is 
on the K3 and the P3 in the first 15 minutes from a cold start.

73,
Victor, 4X6GP
Rehovot, Israel
Formerly K2VCO
http://www.qsl.net/k2vco/
On 9 Dec 2017 22:45, Gary Smith wrote:
> Hi Vic,
> 
> I do have the .5 TXCO but also have the
> ref board attached and a GPSDO which
> updates constantly and the software I use,
> NMEATime 2 updates the computer time every
> minute to 6 digits out.
> 
> That said, the K3 is always dead on but as
> to the P3, I never have noticed the P3
> doing anything but keep right in line with
> the K3s frequency. I never see any
> drifting when it is cold & just starting
> up.
> 
> Might it be your radio drifting for a few
> minutes till it warms that you're seeing?
> 
> 73,
> 
> Gary
> KA1J
> 
>> My K3 seems quite stable (at least for CW purposes) although I don´t
>> have a TCXO. But there is considerable drift in my P3 for the first 15
>> minutes or so after turn-on. This is noticeable when the span is
>> narrow (5 kHz). I wonder if anyone has thought about the possibility
>> of stabilizing it?
>>
>> Vic 4X6GP