Hi Rik,
I simply forgot the PA at my parents QTH and don't want to wait a week.
Also it is overkill to use it for the LOPT. I think the LOPT will
handle up to 100W RF. So i will build a separate PA (this evening) in
class D mode (2x IRFZ48N) for a 12...20V design. More power, clear
digital drive, no self oscillations but still some sidebands on VLF,
which i think is uncritical.
73, Stefan
Am 02.02.2012 18:33, schrieb Rik Strobbe:
Hello Stefan,
great experiment.
Why not using
the "big" bridge-PA and keeping bandwidth within reasonable limits by increasing
the transition time (t- option) ?
73, Rik ON7YD - OR7T
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