[Elecraft] PLL/BFO Stability Mod

[Bob Patten]

David A. Belsley wrote:

> Yes, Bob, the d is normal.  Exactly what it means, I am not sure, but 
> it acts like it is indicating the completion (perhaps "done") of some 
> subphase of the process.  I also get the little 5KHz 'glitches' but 
> they are very mild and are not present everywhere. I've never found 
> them a concern. I suspect that is simply part of the nature of the way 
> the VCO works, in 5KHz segments. 

OK, three people so far have pointed out to me that the "d" displayed 
during CAL PLL is normal.  It is displayed as info is stored.  Maybe 
that is written into the new 3000+ manual, but not the one for my old 
S/N 0438.

I suspect the glitches you are experiencing are tick sounds at the 5kHz 
boundries with no change in frequency.  I did have those before the mod 
and it was not a problem.  My glitches now are distinct frequency jumps. 
 This can be very annoying if you are listening to a signal on one of 
these boundries.  As you tune across the signal, it abruptly disappears 
with the freq jump!  I did not experience this before the mod, and have 
no idea why I'm still experiencing it after re-installing the original 
two xtals and removing the added resistor from RP2...

-- 
73,     Bob Patten, N4BP                Plantation, FL

E-Mail: n4bp@arrl.net                   Website: http://www.qsl.net/n4bp
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