[Elecraft-K4] Improved frequency accuracy with external reference

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[Elecraft-K4] Improved frequency accuracy with external reference

wayne burdick
Administrator
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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Re: [Elecraft-K4] Improved frequency accuracy with external reference

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


______________________________________________________________
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 Message
delivered to [hidden email]

______________________________________________________________
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
Message delivered to [hidden email]