Good conditions and no mention of a chip, nor could I see one
on your spectrum. Yesterday I changed the TX and hopefully
fixed the chirp and maybe the phase glitches?
There are still bumps (~0.1 Hz) in the spectrum 10 MHz DOCXO output
every few minutes. They last longer when the osc is less thermally
insulated from the shack, but this is unchanged by putting
a big cap across Vcc (which is unchanging). Could this be the source of
the phase instability in the 137 kHz sigs?
How about a large AC ripple on the supply to the PA?
73 & tnx
On Wed, 5 Jun 2013, Michel Brunel wrote:
Good conditions tonight,
73, Michel - f5wk
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