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LF: AW: SSB modulation for WSPR

To: <[email protected]>
Subject: LF: AW: SSB modulation for WSPR
From: "Joe" <[email protected]>
Date: Wed, 21 Oct 2015 11:48:13 +0200
In-reply-to: <[email protected]>
Reply-to: [email protected]
Sender: [email protected]
Thread-index: AdEL4VHl4jLqgIeWSzOZCE8LJWv4ygAA8UpA

Hi Hugh,

 

I checked the spots and there is no drift on your signal, timing seems ok for me ( mostly 0.3 sec difference). No Idea why I am the only one.

 

Timestamp

Call

MHz

SNR

Drift

Grid

Pwr

Reporter

RGrid

km

az

 2015-10-20 15:20 

 M0DSZ 

 0.137533 

 -25 

 0 

 IO82ls 

 0.01 

 DF2JP 

 JO31hh 

 680 

 100 

 2015-10-20 15:12 

 M0DSZ 

 0.137533 

 -23 

 1 

 IO82ls 

 0.01 

 DF2JP 

 JO31hh 

 680 

 100 

 2015-10-20 15:04 

 M0DSZ 

 0.137533 

 -24 

 0 

 IO82ls 

 0.01 

 DF2JP 

 JO31hh 

 680 

 100 

 2015-10-20 14:42 

 M0DSZ 

 0.137523 

 -25 

 0 

 IO82ls 

 0.01 

 DF2JP 

 JO31hh 

 680 

 100 

 2015-10-20 11:42 

 M0DSZ 

 0.137523 

 -22 

 0 

 IO82ls 

 0.01 

 DF2JP 

 JO31hh 

 680 

 100 

 2015-10-19 16:14 

 M0DSZ 

 0.137523 

 -23 

 0 

 IO82ls 

 0.01 

 DF2JP 

 JO31hh 

 680 

 100 

 2015-10-19 16:06 

 M0DSZ 

 0.137478 

 -24 

 0 

 IO82ls 

 0.01 

 DF2JP 

 JO31hh 

 680 

 100 

 

 

73 Joe

 

-----Ursprüngliche Nachricht-----
Von: owner-[email protected] [mailto:owner-[email protected]] Im Auftrag von LineOne
Gesendet: Mittwoch, 21. Oktober 2015 11:15
An: [email protected]
Betreff: LF: SSB modulation for WSPR

 

So far the only person to decode my WSPR transmissions is Joe, DF2JP.

 

I made a drive unit for 136kHz to utilise 4 different methods of

modulation including quadrature switching for SSB. Having just

discovered that a fault caused the I and Q channels to be somewhat

different I wondered what the effect would be and why Joe was the only

one to decode it?

 

The carrier frequency is never more than 0.8Hz out, time is spot on via

GMT (UTC) and the sound card is perfectly accurate so receive decoding

is good.

 

Hugh, M0DSZ.

 

(P.S. I have no intention of signing up to Yahoo).

 

 

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