2meter off Frequency

[Richard Thorpe-2]

I have a K3 with the 2 meter board it has the K144VX ref lock board and the radio has the K3EXREF installed also installed are the KSYN3A boards.  With all these boards working the 2meter frequency is of by 5 kc.  The only way I can bring it back on frequency is by manually adjusting the frequency.  Any ideas as to what is causing this anomaly?  Thank you.

Richard K6CG
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[Kevin Stover]

You've got the external reference board...what's the external reference
your using?
Is the external reference board configured correctly in the K3? Same for
the ref lock?
Is the mode FM or SSB/CW?


On 11/28/2015 10:36 AM, Richard Thorpe wrote:

> I have a K3 with the 2 meter board it has the K144VX ref lock board and the radio has the K3EXREF installed also installed are the KSYN3A boards.  With all these boards working the 2meter frequency is of by 5 kc.  The only way I can bring it back on frequency is by manually adjusting the frequency.  Any ideas as to what is causing this anomaly?  Thank you.
>
> Richard K6CG
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--
R. Kevin Stover
AC0H
ARRL
FISTS #11993
SKCC #215
NAQCC #3441


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[Elecraft mailing list]

I ran into this, and what I found is the connection to the reference K144VX board was not good.(The center pin out on that connector had pushed out)



      From: Richard Thorpe <[hidden email]>
 To: Elecraft List <[hidden email]>
 Sent: Saturday, November 28, 2015 11:36 AM
 Subject: [Elecraft] 2meter off Frequency
   
I have a K3 with the 2 meter board it has the K144VX ref lock board and the radio has the K3EXREF installed also installed are the KSYN3A boards.  With all these boards working the 2meter frequency is of by 5 kc.  The only way I can bring it back on frequency is by manually adjusting the frequency.  Any ideas as to what is causing this anomaly?  Thank you.

Richard K6CG
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[Dave-3]

Hi Richard

The clue to the problem is when you say " The only way I can bring it back
on frequency is by manually adjusting the frequency." If reflock is turned
on,  moving the dial will only get the the response "reflock" from the vfob
lcd line" and will not change the frequency

The solution is hidden away in the "K144XV REFERENCE OSCILLATOR PHASE LOCK
OPTION MANUAL ERRATA Rev. A1-1, March 22, 2013" document (30 months old!)
why it is still there after all these years and hasn't been put in the
manual proper only Elecraft know... I have already helped 3 UK amateurs who
have had the same issue!-

"Tune the K3 to any frequency in the 2-meter band. Hold CONFIG to access the
CONFIG menu and
select XVn OFS, where n is the transverter number you assigned to the K144XV
(see Enabling the
K144XV Module in the K144XV Installation and Operation manual).
<<<<<Tap the 0 switch until you see REFLOCK on the K3's LCD>>>>>>>>>. The
automatically calculated offset will appear in upper half of the K3's LCD.
This enables reflock for both the 144 and 146 MHz band segments. You don't
have to repeat the procedure for each segment."

Dave
G4FRE

Message: 12
Date: Sat, 28 Nov 2015 08:36:13 -0800
From: Richard Thorpe <[hidden email]>
To: Elecraft List <[hidden email]>
Subject: [Elecraft] 2meter off Frequency
Message-ID: <[hidden email]>
Content-Type: text/plain; charset=us-ascii

I have a K3 with the 2 meter board it has the K144VX ref lock board and the
radio has the K3EXREF installed also installed are the KSYN3A boards.  With
all these boards working the 2meter frequency is of by 5 kc.  The only way I
can bring it back on frequency is by manually adjusting the frequency.  Any
ideas as to what is causing this anomaly?  Thank you.

Richard K6CG


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[Bill Frantz]

I had a similar problem on my K3. Mine turned out to be plugging
the ref lock TMP cable into the wrong place on the new synth
board. It started working when I followed the cabling diagram on
the installation instructions for the new synth board.
<http://www.elecraft.com/manual/E740257%20KSYN3A%20Installation%20Rev%20A5.pdf>
page 15 and 16.

73 Bill AE6JV

On 11/28/15 at 8:36 AM, [hidden email] (Richard Thorpe) wrote:

>I have a K3 with the 2 meter board it has the K144VX ref lock
>board and the radio has the K3EXREF installed also installed
>are the KSYN3A boards.  With all these boards working the
>2meter frequency is of by 5 kc.  The only way I can bring it
>back on frequency is by manually adjusting the frequency.  Any
>ideas as to what is causing this anomaly?  Thank you.

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