[Elecraft] 10M birdie and other assundries

[pc5m, Carel]

Julius, I also strugled with this and made a small Excel file to calculate
at which frequency this birdie will be. File can be found at:
www.pc5m.com\projects\resources\kpa100_xtal.xls

At the top you can input the x-tal freq used in the KPA100 and below it
will calculate the mixing products (up to 5th level). If a cell turn red
than the spur will be in-band !

It turns out that NO x-tal (in the vicinity of original one) will provide
birdie free operation on all bands, but depending on your preference you
can position this birdie on the bands/frequencie best for you.

In my case I changed the x-tal to 16.0 MHz

gl,

Carel, pc5m


-------------------
Just out of curiousity, after spending some time on
10M during ARRL 10, I noticed a birdie around
28.019/20. Is there a way to eliminate this or move it
below 28.000?

As to my high current draw on 160, the KPA100 works
fine into a dummy load and straight into the antenna.
It does seem to draw more with the KAT100 in the
circuit. I can't imagine much in the tuner that would
cause such a problem (although I could be wrong). My
thoughts drift towards a ground loop issue and/or rf
getting back into the rig's control circuit. Guess I
will be adding some further current chokes in the
shack...

Best wishes to all for the holiday season. May 2007 be
good to you and yours...

Cheers,
Julius
n2wn