XV-144 Stability

[WD6DBM]

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.  

73

Eric WD6DBM

Sent from my &$@!? iPhone
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[David Pratt]

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 <[hidden email]> 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.



______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[N5GE]

On Thu, 4 Nov 2010 19:52:12 +0000, David Pratt <[hidden email]>  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 <[hidden email]> 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.
>
>
>
>______________________________________________________________
>Elecraft mailing list
>Home: http://mailman.qth.net/mailman/listinfo/elecraft
>Help: http://mailman.qth.net/mmfaq.htm
>Post: mailto:[hidden email]
>
>This list hosted by: http://www.qsl.net
>Please help support this email list: http://www.qsl.net/donate.html

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html