[Elecraft] XV-144 Stability

[Amateur Radio Operator N5GE]

On Thu, 4 Nov 2010 19:52:12 +0000, David Pratt <david at g4dmp.fsnet.co.uk>  wrote:

I leave my K3's on all the time, but yes the K144XV does drift a bit, so before
doing anything that requires stability I hold the CW Key down for about 5
seconds to warm things up.

Tom
Radio Amateur N5GE

>Yes, Eric, like you I usually switch on my XV144 for about 20 minutes 
>before I intend to use it to allow the crystal oven to get up to 
>temperature. Then, it is nice and stable.  I did have the Mitsubishi PA 
>module fail on me and had to replace it. I have also fitted an internal 
>fan similar to that used in the XV432.  Since then, no problems.  In 
>contrast, my internal K144XV drifts almost 100Hz in five minutes, even 
>after allowing 30 minutes to 'warm up'.
>
>73 de David G4DMP
>
>In a recent message, Eric <gliderboy1955 at yahoo.com> writes
>>
>>I use an xv-144 for jt65 eme. It will drift slightly for about 20 
>>minutes after power up, even with the xtal oven.  However, i have mine 
>>strapped so the oscillator and oven are only running when it is turned 
>>on.  After warmup it is rock solid--no drift.
>
>
>
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