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Re: LF: 137.7770 kHz

To: [email protected]
Subject: Re: LF: 137.7770 kHz
From: [email protected]
Date: Wed, 5 Jun 2013 09:32:00 -0230 (NDT)
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Thank-you, Michel.

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
Joe




On Wed, 5 Jun 2013, Michel Brunel wrote:


Good conditions tonight,

73,  Michel - f5wk
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