Re: LF: RE: MF: "Double-with" JT9 ?

[Markus Vester <markusvester@aol.com>]

...yes I saw it too. The WSJT-X spectogram showed nine equispaced lines with distinct little gaps between them, last time at 19:12 on 1373 Hz, in between CQ blocks from DK7FC. Then at 19:14, Stefan was called by LA3EQ and they conducted a QSO.

 

Best 73,

Markus (DF6NM)

 

-----Ursprüngliche Mitteilung----- 
Von: Wolfgang Büscher <dl4yhf@freenet.de>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
Verschickt: Mo, 18 Jan 2016 8:23 pm
Betreff: Re: LF: RE: MF: "Double-with" JT9 ?

Hi Rik,

My initial thought, too, but the spacing between the tones was also apparently larger than usual. And each of the tones had exactly the same strength, which may happen by conincidence but it's quite rare.
I'm not sure if two equally strong stations overlapping partly wouldn't still get a decode every now an then. At least in WSPR-X they would.

Cheers,
  Wolf .

Am 18.01.2016 um 10:28 schrieb Rik Strobbe:

Hello Wolf,

 

maybe 2 stations partially overlapping?

 

73, Rik  ON7YD - OR7T

 

---

Van: owner-rsgb_lf_group@blacksheep.org [owner-rsgb_lf_group@blacksheep.org] namens Wolfgang Büscher [dl4yhf@freenet.de]
Verzonden: zondag 17 januari 2016 20:02
Aan: rsgb_lf_group@blacksheep.org
Onderwerp: LF: MF: "Double-with" JT9 ?

currently visible but not decodable on MF.. transmitting on even
minutes, looks like a JT9 signal with double tone spacing.

73,
   Wolf .

p.s. upload problem from wsjt-x seems to be related with running wspr-x
in parallel, and both trying to upload at the same time. Exactly that
was the big difference between HF and MF : Simultanous operation from
the same signal source is only possible on this band.