Hello
from time to time the TX maybe jumped off the band, and
I noticed a very big jump in the SWR and the power dropped
down for a few milliseconds, then the TX comes back.
The problem is also with lower power.
I notice this jump also in the headphone.
It is definitly not the antenna, because the 80 meter
problem is not there with the TS570 and the Elecraft K2
on the same antenna and powersupply.
But I did not mention the problem, when I drive the Centurion
with the OMNI 6+, only when running barfoot!
A few weeks ago I was in touch with TenTec about the
80 meter problem.
The suggestion was to replace/check all the diodes on the
TX Low pass board, all diodes on the 81593 BPF
board and U1 and associated diodes on MHz board 81782.
But all the diodes are o.k.
Any help ?
73 de Harry, DK2GZ
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