[600MRG] Not quite there

[Mike.WE0H]

That's what you call a broadband signal ;-)

Mike
/16



Brian P wrote:
> XKA got WSPR decodes of me on 3 freqs 60.0Hz apart.  Apparently I have a
> weak 60Hz modulation in my 100W Class-E amp.  While investigating that
> (it was not the power supplies), I found that the ringing at the MOSFET
> gates was causing a weak output on ~25MHz. And then there was the
> ~1.6MHz gate drive oscillation that occurred when the U3 was not
> transmitting.  At least this last did not radiate!  I fixed the last
> problem, and will try some gate series resistors for the ringing.  Maybe
> I will be on the air in a day or
> two...................................................  At least the U3
> appears to not be at fault.