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EB2DVY > PSK31 18.07.99 05:05l 227 Lines 7682 Bytes #-9963 (0) @ WW.SYD.NSW.
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To : PSK31@WW.SYD.NSW.AUS.OC
De: Psk31 Digest <owner-psk31@aintel.bi.ehu.es>
Para: <psk31-digest@aintel.bi.ehu.es>
Asunto: Psk31 Digest V1 #107
Fecha: lunes 12 de julio de 1999 4:25
Psk31 Digest Monday, July 12 1999 Volume 01 : Number 107
In this issue:
[psk31] Unofficial PSK31 DXCC Tables @ 00z 01/07/1999
[psk31] color vs. b/w :: psk demos
[psk31] MixW32 and Windows NT4
[psk31] Experimental PSK31 Utility Program
[psk31] PSK31 demos
[psk31] 7MHz PSK31 frequency
See the end of the digest for information about psk31-digest
----------------------------------------------------------------------
Date: Sun, 11 Jul 1999 04:03:14 EDT
From: RS174461@aol.com
Subject: [psk31] Unofficial PSK31 DXCC Tables @ 00z 01/07/1999
Hi everyone,
Thanks to those who sent me their scores. Below you will find the first of
what I hope will become a monthly thing. Apologies if the columns are
misaligned, but I wasn't sure about the reflector's stance on attachments.
If any of you would prefer to receive it in a .txt format, please let me know
and would be happy to send you one.
At present Dima (UT5RP) leads the way with 90 countries worked. I know for a
fact that this number has once again risen since the start of the month. I
also know that Dima now has a QSL manager. Mikey Grose - W4SMG being the man
in question. For those of you who need UT5RP confirming on whatever
bands/modes, please send your cards to :-
Mikey Grose,
Po Box 183,
Flat Rock, NC,
28731-0183 USA.
There may be some delay as the cards have yet to be printed.
I hope that a few more of you will see fit to submit at the end of July.
Until then, on with the table.....
The Unofficial PSK31 DXCC Worked/Heard Table @ 00Z 01/07/1999
Callsign 80m 40m 30m 20m 17m 15m 12m 10m
8 Band ALL
- ------------------------------------------------------------------------------
- ---------------
UT5RP 8 1 0 80 0 26 0 4
119 90
PA0HVF 0 0 0 84 0 16 0 2
102 87
RS174461 (SWL) 1 7 0 55 0 16 0 0
79 59
LY2CG 10 2 1 53 7 12 1 4
90 56
PY2PLL
47
HB9AWS 1 1 0 41 0 1 0 0
44 41
PA3BAY 0 2 0 38 0 0 0 0
40 40
RW3AA 0 0 0 36 1 7 0 1
45 38
Vy 73,
Karl - RS174461
SWARL (Shortwave Amateur Radio Listening) List-owner
HTTP://swarl.listbot.com
------------------------------
Date: Sun, 11 Jul 1999 10:30:47 +0100
From: "Jim Jarvis" <jljarvis@together.net>
Subject: [psk31] color vs. b/w :: psk demos
Gents:
1) Good work by Bob Lay, comparing tuning displays and detection levels
between psk31 and mix32.
A conceptual way of looking at color is that it provides greater visual
bandwidth than simple monochromatic
displays, so you would expect to see more. Bob proves that.
For those of us who are using 486 laptops in the radio shack, 32 bit
programs aren't going to
help. The upside of your work is...by the time we get around to changing,
the software will be well shaken out.
2) PSK Demos: If you have two computers with mics and speakers.... you
don't need radios to do the
demo. KM1Z did a demo for one of the local clubs in Vermont, using a
pair of Toshiba laptops
with built in mic's and speakers. Just had 'em sitting near each other,
while he talked through it,
to make qrm. Perfect print.
Had a similar experience with my Toshiba 486, when I was working on my
psk31 interface. Got
the program running, and was tuning around on 20 while building the audio
interface.....and the
screen started printing. Acoustic coupling from the receiver to the laptop
mic. +ACEAIQ-
73, Jim
N2EA
------------------------------
Date: Sun, 11 Jul 1999 21:40:17 +1000
From: Ken Jobling <kjobling@dbworld.net.au>
Subject: [psk31] MixW32 and Windows NT4
Has anybody had any success with MixW32 and Windows NT4. I have the
Demo version 1.03 and find that it crashes within the first few minutes
of operation. It appears that while the registered version is now up to
1.07, we can only demo up to version 1.03 and it does not work for me.
- --
Ken Jobling (VK3KJC)
Email: k.jobling@bigfoot.com
or: kjobling@dbworld.net.au
Web: http://www.bigfoot.com/~k.jobling/
http://www.qsl.net/vk3kjc/index.html
------------------------------
Date: Sun, 11 Jul 1999 08:51:43 -0400
From: Moe Wheatley <ae4jy@mindspring.com>
Subject: [psk31] Experimental PSK31 Utility Program
For those wanting to experiment with psk31 signals, there is a signal
generating program utility i wrote several months ago to play with different
reception algorithms. It generates the audio signal with the addition of
controlled amounts of Gaussian noise. Unfortunately it does not simulate HF
multipath distortion but is still useful for simple comparison purposes.
The program requires W95 or better and floating point coprocessor(Pentium
class but maybe 486 ok).
This utility ( wscgenexe11.zip )can be found at:
<www.mindspring.com/~ae4jy/projects.htm>
Hope this is of some use.
Moe AE4JY
------------------------------
Date: Sat, 10 Jul 1999 19:17:05 +0000
From: Peter Martinez <Peter.Martinez@btinternet.com>
Subject: [psk31] PSK31 demos
From Peter Martinez G3PLX
From experience, trying to demo PSk31, or any other mode for that
matter, is almost always doomed to failure.
The exception might be if the club has a permanent station already
set up in the same building. Even then you need to check it out
beforehand, and you certainly need an assistant to run the demo.You
do the talking while the assistant works the equipment. He gets into
a QSO, perhaps a round-table, and keeps this going all evening until
you are ready to show it to the audience, perhaps after the main talk
so there is enough time for everyone to squeeze into the shack and
see what's hapenning.
One idea that I found works well is to do an audio recording, or I
guess even a video recording, of a QSO taking place in your own home,
then play that back in the club so that the received audio is heard
in the room, and pass round hard copies of the QSO.
Doing a QSO from one end of the room to the other with gain's turned
down to simulate bad conditions, will impress no-one: the audience
will not be able to relate this setup to their own experience. One
idea I haven't tried would be to do a QSO across the room at audio
frequency, and the audience can have fun generating the QRM by
shouting, or generating white noise with their applause!
73
Peter
------------------------------
Date: Sat, 10 Jul 1999 18:29:28 +0000
From: Peter Martinez <Peter.Martinez@btinternet.com>
Subject: [psk31] 7MHz PSK31 frequency
From Peter Martinez G3PLX
The 7035.15 frequency for 40m got to be the PSK31 frequency because
it's 150Hz above the bottom edge of the IARU digital sub-band IN
REGION 1, where PSK31 activity first started 3 years ago.
I assume that in region 2 the IARU digital sub-band has it's lower
edge higher up, and if so, then the 40m PSK31 "hailing frequency"
should be 150Hz above that. Perhaps that's why 7070.15 has been
mentioned in this connection.
The 150Hz offset arose because if the bottom end of the digital band
is populated by Pactor stations that are (illegally?) unable to
prevent themselves from transmitting over an on-going QSO, operating
150Hz or 650Hz above a whole kHz is the best way of avoiding them,
since they seem to like transmitting 300/500Hz or 800/1000Hz above a
whole kHz.
73
Peter
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More instructions on PSK31 Webpage: http://aintel.bi.ehu.es/psk31.html
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
End of Psk31 Digest V1 #107
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