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To : PSK31@WW.SYD.NSW.AUS.OC
De: Psk31 Digest <owner-psk31@aintel.bi.ehu.es>
Para: <psk31-digest@bipt106.bi.ehu.es>
Asunto: Psk31 Digest V1 #286
Fecha: jueves 13 de enero de 2000 4:29
Psk31 Digest Thursday, January 13 2000 Volume 01 : Number 286
In this issue:
R: [psk31] DigiPAN performance with noise ?
[psk31] PSK SOFWARES
[psk31] Fwd: VOX problem.
Re: [psk31] PSK SOFWARES
R: [psk31] PSK SOFWARES
Re: [psk31] PSK SOFWARES
See the end of the digest for information about psk31-digest
----------------------------------------------------------------------
Date: Wed, 12 Jan 2000 08:32:44 +0100
From: "Guido Tedeschi (ik2bcp)" <ik2bcp@hamlan.org>
Subject: R: [psk31] DigiPAN performance with noise ?
Hello Robert and thanks for the messagge.
In my message I spoke about a better performance
of WinPSK and Logger over DigiPAN and not about
difficult reception with QRM.
With my old but good TS830S with 270Hz filter (usable
also on SSB reception with a modify I did) and notch I
can filter most of the QRM that pumps the AGC.
My problem is with man made noise (boilers, neons, etc.)
that the Noise Blanker can't eliminate.
With this noise type (QRN) it seems to me that the
performance of DigiPAN is not good as WinPSK or
Logger.
Thanks and 73
Guido, ik2bcp
- -----Messaggio Originale-----
Da: Robert Lay <w9dmk@crosslink.net>
A: Guido Tedeschi (ik2bcp) <ik2bcp@hamlan.org>;
<psk31@bipt106.bi.ehu.es>
Data invio: martedì 11 gennaio 2000 13.06
Oggetto: Re: [psk31] DigiPAN performance with noise ?
> Dear Guido,
>
> With WinPSK, try checking the MaxLikelyhoodDetector on the
Setup | General
> dialog. Also try QPSK instead of BPSK under different
conditions.
>
> Everyone's environment and typical operating conditions
are different.
>
> Careful use of Notch filters and Pass Band Tuning features
on the rig are also
> quite helpful in reducing the effects of adjacent channel
interference. There
> have been many informative postings in the past 6 months
on this subject. The
> narrow bandwidth of the PSK31 detection is very effective,
but it needs a little
> help when strong QRM is causing your AGC to pump.
>
> Under conditions of pure white noise, I don't think any IF
or audio filtering
> can do much to improve upon the PSK31 intrinsic
capabilities.
>
> 73 de Bob Lay, w9dmk@arrl.net, King George, VA
> http://www.qsl.net/w9dmk
> http://www.fortunecity.com/meltingpot/albania/784
>
>
>
>
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>
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------------------------------
Date: Tue, 11 Jan 2000 19:08:04 -0400
From: "BIGNON Alain" <abignon@wanadoo.fr>
Subject: [psk31] PSK SOFWARES
I used psk31 , logger , mixw demo , digipan and for me the best is mixw
demo).
- - psk31 was the pionnier but to small spectral window and no type during
tx.
- - logger is to big and have plenty of bells ( my log is on paper..)
- - digipan is friendly using , but why a so large spectral window for a
narrow band mode ? no useful and to difficult for pointing the center
frequency on a psk signal
- - the mixw demo has the best spectral window ( use the command alt + w to
get the yellow cumulative spectre -> fine ) and for the same 0$ price it
work in rtty !
If one days mixw has the pactor mode , sure i will buy it .
SALUT DE ALAIN FG5GI
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------------------------------
Date: Wed, 12 Jan 2000 06:01:26 -0800 (PST)
From: Patrick Franzis <old_radios@yahoo.com>
Subject: [psk31] Fwd: VOX problem.
Hi PSKers,
I want to thank everyone for their help with my VOX problem described
below. The consensus is that I must adjust my anti-VOX setting. Right
now, I am re-doing my rig<->pc interface, putting it in a box.. etc, so
I will try this when I get back on the air.
73s, Patrick N1OCJ
- --- Patrick Franzis <old_radios@yahoo.com> wrote:
> Hi all,
> I noticed a problem this weekend while working the RTTY Roundup. If I
> have a strong adjacent signal it seems my VOX won't kick in. If I
> lower
> my AF gain on the rig. it switches on.
>
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Date: Wed, 12 Jan 2000 09:10:26 -0500
From: "Andrew J. O'Brien" <obrienaj@netsync.net>
Subject: Re: [psk31] PSK SOFWARES
- -----
- ----- ? no useful and to difficult for pointing the center
> frequency on a psk signal
Interesting observations Alain. I too have noticed DigiPan's difficulty in
centering a freq with a mouse click.
Andy KB2EOQ
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------------------------------
Date: Wed, 12 Jan 2000 19:18:08 +0100
From: "Guido Tedeschi (ik2bcp)" <ik2bcp@hamlan.org>
Subject: R: [psk31] PSK SOFWARES
It is very strange, because I find the AFC of DigiPAN very
powerful.
I never had a problem: only one click and the tune is ready
(used from 500 to 2300 HZ....)
If DigiPAN will receive with noise like WinPSK or Logger, it
will be the very best ! :-))
Ciao and 73
Guido, ik2bcp
- -----Messaggio Originale-----
Da: Andrew J. O'Brien <obrienaj@netsync.net>
A: <psk31@bipt106.bi.ehu.es>
Data invio: mercoledì 12 gennaio 2000 15.10
Oggetto: Re: [psk31] PSK SOFWARES
>
> -----
>
> ----- ? no useful and to difficult for pointing the center
> > frequency on a psk signal
>
> Interesting observations Alain. I too have noticed
DigiPan's difficulty in
> centering a freq with a mouse click.
>
> Andy KB2EOQ
>
>
>
>
>
>
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>
> More instructions on PSK31 Webpage:
http://aintel.bi.ehu.es/psk31.html
>
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------------------------------
Date: Wed, 12 Jan 2000 20:05:29 -0500
From: "Robert Lay" <w9dmk@crosslink.net>
Subject: Re: [psk31] PSK SOFWARES
Dear Alain,
You've been an active PSK31 Warbler for a long time, so I am absolutely
astonished that you have not yet discovered WinPSK by Moe Wheatley.
Try it!. You will find that some of your preferences and concerns will be
better resolved with WinPSK.
Bon Chance!
73 de Bob Lay, w9dmk@arrl.net, King George, VA
http://www.qsl.net/w9dmk
http://www.fortunecity.com/meltingpot/albania/784
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------------------------------
End of Psk31 Digest V1 #286
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