KX144XV REF LOCK AND K3EXREF for K3S

[WA7SPY]

I recently put together my K3S with the KX144XV, KX144XV REF  LOCK and K3EXREF
I ran into a problem with the K3S displayed 2 meter frequency being off. There is some confusion with the KX144XV REF LOCK manual and K3EXREF manual as to where to connect the REF IN TMP cable. I contacted Elecraft tech support. I found out there is an ERRATA dated 03/2018 for the KE3EXREF manual which did not come with my option module and is not on the Elecraft website. The KEEXREF manual shows the REF TMP cable going to J4 on the KSYN3A board. This is incorrect! The REF IN needs to go to J1 on the KSYN3A board. If you plug into J4 the 2 meter displayed frequency on the K3S will be incorrect and off frequency. Hope this my help someone else.
Glenn Maclean WA7SPY
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