Hi Gents,
No question here, but I did want to post this in case
someone else wants to operate his XG2 on 160m
instead of 80m....
I ordered a crystal from Mouser, part number
520-HCA184-13X for 1843 khz. The XG2 wouldn't
oscillate with the new crystal. Bob, N6CM, designed
the device, so I asked him for some pointers. He
explained it this way (thanks Bob!):
"What happens is that because of the small
crystal blank, the series resistance goes up as the frequency goes
down. You can try increasing C1/C2 by first 50% or so and then 100%
to get 160 working but it's possible that you may lose 20. It all
depends on the particular 20 meter crystal that you have."
I changed C1 to 33pf from 18pf, and C2 to 100pf from 47pf.
The XG2 now oscillates well on 20, 40 and with the new
160m xtal.
73,
Charlie, N0TT
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