LF: Re: AW: SSB modulation for WSPR

["G3WCB" <ganymede444@btopenworld.com>]

Hi, Hugh.

 

I wasn't monitoring during the day yesterday, so I wouldn't have seen your transmissions. I've left the gear on today.

I don't know if you would be copyable in the daytime from IO82 with the power you are running. I have copied Chris 2E0ILY from IO82, but so far only at night.

 

73, Dave G3WCB IO80DI

----- Original Message -----

From: Joe

To: rsgb_lf_group@blacksheep.org

Sent: Wednesday, October 21, 2015 10:48 AM

Subject: LF: AW: SSB modulation for WSPR

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-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org] Im Auftrag von LineOne
Gesendet: Mittwoch, 21. Oktober 2015 11:15
An: rsgb_lf_group@blacksheep.org
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).