[Elecraft] PLL Reference Oscillator Range Test

[John, KI6WX]

Don;
You do not want to go to the 10uH L31.  It will reduce the range too much
and probably cause increased drift with temperature.  Your PLL Reference is
right in the expected range of 10 to 15 kHz.  If you want a more detailed
explanation, I had posted a message to the reflector several weeks ago about
the design of the PLL reference and the temperature compensation circuit for
it.
-John
 KI6WX

----- Original Message ----- 
From: "Don Ingram" <kk7vm@qwest.net>



Hi and thanks to all that responded to my earlier post on this subject.  You
all are surely quick to offer assistance.

First of all I stated that the difference was 10.04. That was incorrect.  I
am somewhat fatigued as I was presented with a baby grand daughter at 3:00
am Friday.  The baby and my daughter are still in the hospital and I needed
some thing to think about besides my sick grand baby.  I had some notes made
on the manual and copied the wrong range.

What I should have written is 13.69 kHz difference.  Which is outside the of
the range.

Kenny KU7M wrote that he had the same issue and the resolution is to replace
L31 which is 12uh with a 10 uH.  So a request for the new part is going to
Elecraft tomorrow and I will proceed with the assembly till it arrives.

It looks like I am getting close to the end of the journey and I am anxious
to get on the air with the new rig.

Daughter was discharged this evening and baby (if all goes well) will come
home on Tuesday.

Thanks to all that responded.  I have seen on this list that others
exclaimed how much help and how fast is was but did not really realize how
much and how fast until now.

Thanks a bunch!

Don KK7VM