[Elecraft] KX3 freq stability module request

[Fred Smith]

The KX3 has no problems running the JT modes and all I used was the Elecraft
XG50 kit I built for calibration. Mine was a factory built unit I want the 8
hrs. of burn-in time after built then all calibrations rechecked before it's
shipped.

73,
Fred/N0AZZ

-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Brendon Whateley
Sent: Tuesday, May 28, 2013 3:27 PM
To: K2TK at att.net
Cc: elecraft at mailman.qth.net
Subject: Re: [Elecraft] KX3 freq stability module request

No the temperature calibration is not done at the factory.  You basically
put the radio in the fridge/freezer and then go through  process with an
accurate reference signal to correct for drift as the temperature comes up.
It is only needed if you have need of very tight frequency control -- as is
required by some digital modes.

On this page:
http://www.elecraft.com/KX3/kx3_app_notes.htm 
near the bottom, you can see the application note.

- Brendon
KK6AYI

On May 28, 2013, at 1:10 PM, Bob wrote:

> Assuming that there are temperature calibrations involved leads to a 2nd
question. Is this
> procedure part of the factory built units?   If so this could be the value
added item that trips
> the kit verses factory equation towards the factory version.

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