[Elecraft] 40M/PLL Cal works...

Tue Jul 16 08:12:00 2002

Yup, I had this problem too, about six months ago.  I couldn't figure out
what I was doing wrong -- I just couldn't CAL PLL at all.  Then I remembered
putting in the cap (which didn't help my WAOF problem at all), removed it
and voila - success!

By the way, I'm still open to suggestions about curing my WAOF problem...but
it's not crucial, I don't operate on 7185 anyway (never have and don't see
much of a reason to start).  If that's the price I have to pay for having a
K2, by gum, that's alright by me!

73,

Joe, W2RBA

> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]]On Behalf Of Marc
> Sent: Tuesday, July 16, 2002 7:46 AM
> To: [email protected]
> Subject: [Elecraft] 40M/PLL Cal works...
>
>
> Hi all,
>
> Last night I removed the 'mod' for U4 pin 1 and 2 (10
> pF cap across pins) and now the K2 passes the CAL PLL
> routine.
>
> With the cap installed, the CAL PLL freq starts at
> 10973 (and fails).  Without the cap installed, the CAL
> PLL starts at 12013 and passes...
>
> I'm not sure why, since before you run CAL PLL, you
> can run CAL FCNT and the probe reads the right
> frequency on TP1 (VCO).  When you run CAL PLL, the
> frequency jumps over 1 MHz down and the routine
> fails...
>
> Anyone else install the 10 pF cap and then tried
> running the CAL PL  routine??
>
> Thanks,
> Marc