Hi Gary,
Thank-you for the report, caputure and for running your FB grabber.
I look for sigs on your grabber quite frequently to check the TX.
The TX will be on again tonight, (without chirps I hope). Comments
about the phase (especially unfavourable criticism) are solicited and
shall be most welcomed.
450 watts, 3.2 amps to a 100m wire at 15m. QRSS30.
73
Joe VO1NA
On Wed, 5 Jun 2013, Gary - G4WGT wrote:
Hi Joe,
Michel's excellent capture of your signal prompted me to check my over-night
grabber saves & found your signal showing up for a long period of time from
00:50utc to about 03.30utc on my QRS03 grabber, see attached at 01:40utc. A
letter "V" seen at the top of image.
73,
Gary - G4WGT.
----- Original Message ----- From: <[email protected]>
To: <[email protected]>
Sent: Wednesday, June 05, 2013 1:02 PM
Subject: Re: LF: 137.7770 kHz
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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