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| To: | <[email protected]> |
|---|---|
| Subject: | Re: LF: 137.7770 kHz |
| From: | "Gary - G4WGT" <[email protected]> |
| Date: | Wed, 5 Jun 2013 18:51:07 +0100 |
| In-reply-to: | <[email protected]> |
| References: | <[email protected]> <[email protected]> <9F4D930ED1F64F7C974C9F3570FE5DEA@White> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> |
| Reply-to: | [email protected] |
| Sender: | [email protected] |
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 puttinga 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 - f5wkThis electronic communication is governed by the terms and conditions at http://www.mun.ca/cc/policies/electronic_communications_disclaimer_2012.php
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