Re: [rsgb_lf_group] Re: LF: WOLF Transmission

[Andy Talbot <andy.g4jnt@gmail.com>]

That's impressive.  Didn't realise the decoder had that much leeway on frequency offset.   

Getting wideband decoding of BPSK. over several baud spans of frequency,  involves significantly higher processing task that it does for MFSK modes.

I think...

'jnt

On 27 February 2016 at 20:33, Steve Elliston sgelliston@gmail.com [rsgb_lf_group] <rsgb_lf_group@yahoogroups.co.uk> wrote:

 

Andy,

I had 3 x  G8IMR howlings circa 20:03:35 on 137.630kHz whilst I was tuned to 137.650kHz

I've retuned to 137.630KHz and will keep it running.

73

Steve

G3XKR

On Sat, Feb 27, 2016 at 7:41 PM, Andy Talbot andy.g4jnt@gmail.com [rsgb_lf_group] <rsgb_lf_group@yahoogroups.co.uk> wrote:

 

In that case...    and I also realise I did the calculations wrong and was in the  WSPR band:

I'll move up to just above it.

The transmission is now on 137650Hz

Mind you. 200 + 25Hz is a lot of allocation at LF  to call it all WSPR

Andy  G4JNT

On 27 February 2016 at 19:31, Markus Vester <markusvester@aol.com> wrote:

Mike's sequence ended at 19:16. Although somewhat more distant and weaker, there's also R7NT in your passband:

2016-02-27 19:18:06 R7NT    2060km 137540.999Hz   3mHz -49.3dBOp 100% 16.5dB
2016-02-27 19:16:53 G3XDV    843km 137542.569Hz   8mHz -30.8dBOp 100% 21.2dB
2016-02-27 18:18:06 R7NT    2060km 137540.940Hz   2mHz -41.9dBOp 100% 18.4dB
2016-02-27 17:18:06 R7NT    2060km 137540.945Hz   4mHz -48.7dBOp 100% 16.1dB

73, Markus 


-----Ursprüngliche Mitteilung-----
Von: Andy Talbot <andy.g4jnt@gmail.com>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
Verschickt: Sa, 27 Feb 2016 8:23 pm
Betreff: Re: LF: WOLF Transmission

Ah, that is close. 

Is it still on?   I don't want to switch the transmission off to take a listen.

Andy

On 27 February 2016 at 19:05, Markus Vester <markusvester@aol.com> wrote:

The WOLF might have been in conflict with Mike's strong Opera signal:

2016-02-27 19:16:54 G3XDV    843km 137542.570Hz   4mHz -32.4dBOp  52% 20.0dB

 

73, Markus

 

-----Ursprüngliche Mitteilung-----
Von: Markus Vester <markusvester@aol.com>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
Verschickt: Sa, 27 Feb 2016 7:56 pm
Betreff: Re: LF: WOLF Transmission

 

... watching. No joy yet, the first 52.8 minute round just ended with no meaningful result.

 

73 and good luck,

Markus (DF6NM)

-----Ursprüngliche Mitteilung-----
Von: Andy Talbot <andy.g4jnt@gmail.com>
An: rsgb_lf_group <rsgb_lf_group@yahoogroups.co.uk>; rsgb_lf_group <rsgb_lf_group@blacksheep.org>
Verschickt: Sa, 27 Feb 2016 5:27 pm
Betreff: LF: WOLF Transmission

And now for something completely different :

There is a WOLF transmission going out on 137540Hz, normal speed 10B/s

Only running about 30 watts of RF or roughly 10mW EIRP.

I'll be leaving it running for a while - at least until the 28V PSU too warm (it is a linear one and not terribly well heatsinked)

Andy  G4JNT

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Posted by: Steve Elliston <sgelliston@gmail.com>

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