I just installed a 2nd receiver and the 2M ref lock. The KRX3A
installation manual, which uses the new synths shows J4 of the
new style main synth connected to REF IN on the 2M transverter.
The ref lock installation manual shows J83 of the old style
synth connected to REF IN and REF OUT connected to J2 on the
KREF3 board.
Absent advice from someone at Elecraft who knows, I would use J4
with the new synths and the J83 with a jumper to the KREF3 board
with the old synths.
73 Bill AE6JV
On 9/18/15 at 3:51 PM, bill4...@gmail.com (Bill Schwantes) wrote:
Hi Folks,
I need help. I have an early K3 equipped with the K3EXREF Frequency Lock
Option, K144XV Two Meter Module and K144XV Reference Oscillator Phase Lock
Option.
Some time after installing the KSYN3A synthesizers I noticed that the 144
Mhz band has a 5.6 KHz frequency error. Signals occurring on the 144.200
calling frequency appear at 144.1944.
Other bands do not display this frequency error.
These observations have been verified by a very precise RF signal
generator.
I verified that the 10 Mhz GPS reference is present and meets the Elecraft
amplitude requirements. The tech mode menu "ref cal" asterisk is present
and blinking, indicating that the radio is phase locked to the 10 Mhz
reference.
I went back through the installation manuals for the options mentioned and
did not find any error. I'm concluding that I may have made an assembly
error when installing the KSYN3a.
Can some member of the Elecraft "brain trust" help me find and resolve this
problem please?
Thanks, Bill
W7QQ
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Bill Frantz | Privacy is dead, get over | Periwinkle
(408)356-8506 | it. | 16345
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CA 95032
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