Re: [Elecraft] [K3] K3EXREF not working

2016-04-23 Thread Sverre Holm (LA3ZA) 
I have photos of the K3's display as it is locked to an external 10 MHz
reference on my blog site (as images 2 and 3). Perhaps that could be of some
help in troubleshooting the K3EXREF. See 
http://la3za.blogspot.no/2015/10/just-good-enough-10-mhz-reference.html




-
Sverre, LA3ZA

K2 #2198, K3 #3391,
LA3ZA Blog: http://la3za.blogspot.com,
LA3ZA Unofficial Guide to K2 modifications: 
http://la3za.blogspot.com/p/la3za-unofficial-guide-to-elecraft-k2.html
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Re: [Elecraft] [K3] K3EXREF not working

2016-04-22 Thread Ron D'Eau Claire 
Hi Steve:

Have you checked its operation as shown in the K3EXREF manual? The manual is
available here if you no longer have your copy. See page 4:

http://www.elecraft.com/manual/E740156%20K3EXREF%20Installation%20and%20Oper
ation%20Manual%20Rev%20A2.pdf

Note that with the external signal present, the asterisk between REF and CAL
should be blinking.

Another test you can run is to disconnect the external signal, adjust the
REFCAL manually as described in your K3 Owner's Manual, and then reconnect
the external signal. You should see the REFCAL value displayed change
automatically. 

Note that the K3EXREF only corrects the REF CAL frequency to be with 2 Hz of
the standard. 

73, Ron AC7AC


-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Steve
Lund
Sent: Friday, April 22, 2016 4:13 PM
To: Elecraft Reflector
Subject: [Elecraft] [K3] K3EXREF not working

I just noticed that my K3 frequency is approximately 50 Hz off.

I have the K3EXREF installed and the external 10 MHz is supplying +10 dBm to
the rear panel connector. The 10 MHz appears to be 3 Hz low according to my
counter and spectrum analyzer. Is this too much?

One recent change is that I installed the K3SYN3A a few months ago. I didn't
check to see if the K3EXREF was locking to the external reference.

Any ideas on how to troubleshoot this?

Thanks,
Steve, K6UM
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[Elecraft] [K3] K3EXREF not working

2016-04-22 Thread Steve Lund 
I just noticed that my K3 frequency is approximately 50 Hz off.

I have the K3EXREF installed and the external 10 MHz is supplying +10 dBm
to the rear panel connector. The 10 MHz appears to be 3 Hz low according to
my counter and spectrum analyzer. Is this too much?

One recent change is that I installed the K3SYN3A a few months ago. I
didn't check to see if the K3EXREF was locking to the external reference.

Any ideas on how to troubleshoot this?

Thanks,
Steve, K6UM
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