[Elecraft-K4] Improved frequency accuracy with external reference

[wayne burdick]

For those using the K4 with an external reference:

Ken Long (N0QO) alerted us to an offset of about 0.1 ppm when the K4 was externally locked. 0.1 ppm is about 5 Hz on 6 meters.

We confirmed this using a GPS-locked 10 MHz reference, and corrected the error. Accuracy is now in the expected range of about +/- 1 Hz on all bands, 6 m included.

This correction will be available in the next beta release.

73,
Wayne
N6KR


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[Edward H Russell]

Good fix, thought something might be wrong with my 10mhz source. Will retest
on the next beta. Thanks!

ED / W2RF

----Original Message-----
From: [hidden email] <[hidden email]> On
Behalf Of Wayne Burdick
Sent: Saturday, June 19, 2021 3:22 PM
To: Elecraft Reflector <[hidden email]>
Subject: [Elecraft] [Elecraft-K4] Improved frequency accuracy with external
reference

For those using the K4 with an external reference:

Ken Long (N0QO) alerted us to an offset of about 0.1 ppm when the K4 was
externally locked. 0.1 ppm is about 5 Hz on 6 meters.

We confirmed this using a GPS-locked 10 MHz reference, and corrected the
error. Accuracy is now in the expected range of about +/- 1 Hz on all bands,
6 m included.

This correction will be available in the next beta release.

73,
Wayne
N6KR


______________________________________________________________
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Please help support this email list: http://www.qsl.net/donate.html Message
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