[Elecraft] How to put an Elecraft K2 on 60 metres

[David Pratt]

In a recent message, Arnold J Smrcka <a.smrcka@juno.com> said....
>Hello Dave...Glad to see you tried Wayne's info..
>Just curious....What is the range of the 5meg ...
>I need to get down to 5204..That is the Army MARS

Right, Arnold, I have done some more tests today and can confirm that 
with Wayne's temporary mod, the K2 works fine down at 5204kHz (on a 
dummy load at this end, of course).

I have reduced my switched PLL capacitor from 82pf to 68pF and am 
getting a VCO voltage of 4.06 at 5204kHz ranging to 1.95 at 5405kHz. All 
my temporary mods are above the main board and I have noted that it is 
very important to make the PLL connections directly across the solder 
pads of C71.  Initially, I took one connection at the paralleled C70, 
and this appeared to be the main cause of the chirp I was getting.  I 
have had several more QSOs on 5280kHz today and all have given me good 
tone reports.  Listening to the signal on a receiver, it sounds fine, 
and I could not wish for a better keyed waveform when viewed on a 
'scope.

Again, I reiterate, I do regard the 60m mod as very much a temporary 
measure and I continue to look forward to a more permanent solution in 
the near future.  I don't want to run my K2 with its top off for too 
long - the dust will get in!

73 de David G4DMP