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EB2DVY > PSK31 05.07.00 22:52l 836 Lines 30991 Bytes #-9507 (0) @ WW.SYD.NSW
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Subj: PSK31 Digest V1 #440
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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 #440
Fecha: viernes 30 de junio de 2000 4:27
Psk31 Digest Friday, June 30 2000 Volume 01 : Number 440
In this issue:
[psk31] IF I SEE IT I HEAR IT
[psk31] PSK31 class of emission question.
[psk31] Phone Patch
[psk31] windows sounds "Cure"
RE: [psk31] IF I SEE IT I HEAR IT
Re: [psk31] IF I SEE IT I HEAR IT
Re: [psk31] PSK31 class of emission question.
[psk31] Sound Blaster 16 IDE PnP card; model CT2940
[psk31] Sound Blaster 16 IDE PnP card; model CT2940
Re: [psk31] FD review (NOT) Please change the Subject Line
Re: [psk31] PSK31 class of emission question.
Re: [psk31] IF I SEE IT I HEAR IT
[psk31] ZAkanaka
[psk31] Emissions
[psk31] Extraneous Noises
Re: [psk31] windows sounds "Cure"
Re: [psk31] Sound Blaster 16 IDE PnP card; model CT2940
Re: [psk31] PSK31 class of emission question.
[psk31] Mode designation
RE: [psk31] IF I SEE IT I HEAR IT
[psk31] Re: PSK31 class of emission question.
[psk31] Two tone generator
See the end of the digest for information about psk31-digest
----------------------------------------------------------------------
Date: Wed, 28 Jun 2000 22:22:11 EDT
From: Ke4yyddave@aol.com
Subject: [psk31] IF I SEE IT I HEAR IT
Articles in QST and CQ this month indicate that psk31 has the capability to
copy stations you can't hear. Is this because the speaker is unplugged or
physical disabilities? In my short experience on psk31, mostly on 2m and 6m,
I have found that if a signal is on the screen, I can hear it. Several times
on 6m I have heard a signal faintly, but nothing on the screen.
Does this indicate a problem with my equipment or is it normal?
Thanks for all your help.
73, DAVID KE4YYD NEED MORE PSK31 ON VHF
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------------------------------
Date: Thu, 29 Jun 2000 09:44:03 +0100
From: "John" <john@mm1dsp.freeserve.co.uk>
Subject: [psk31] PSK31 class of emission question.
As a newly licensed HF operator I would like to ask the group what is the
accepted class of emission that should be entered in the logbook when using
PSK31 mode? Would you believe, I phoned the RSGB and put this question to
them, only to be told "Phone the RA, they will tell you."
And on phoning the 'RA' they said "Just write DATA in that section."
I explained that 'DATA' is not a mode of emission and the reply was
"That doesn't matter, it's not mandatory."
I'll say no more...
Many thanks to everyone in advance.
Kindest regards,
John (mm1dsp/mm5jlt) Scotland.
G-QRP#10123
john@mm1dsp.freeserve.co.uk
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------------------------------
Date: Thu, 29 Jun 2000 08:14:36 -0400 (EDT)
From: Harry Evans <z001799b@bc.seflin.org>
Subject: [psk31] Phone Patch
Not too long ago someone was looking for a circuit diagram of the
Kenwood model PC-1 A Phone Patch. I now have it and will gladly forward
a copy to anyone who wishes a copy
<<<<<<<HARRY EVANS>>>>>>>
W4OFI
Coconut Creek, FL
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------------------------------
Date: Thu, 29 Jun 2000 08:43:53 -0400 (EDT)
From: John Turgoose <john@altair.ca>
Subject: [psk31] windows sounds "Cure"
The cure for windows sounds is to use TWO sound cards. Win 2000, Win NT
4.0 and Win 98 all work, but the software has to be able to address the
two cards. WinPSKse, DigiPan and others do so; some don't. The
"default" sound card is used for your windows sounds/music/web noise and
the 'other' is used for PSK / RTTY / SSTV (JVComm32 also is fine with 2
cards)
cheers, 73
John VE3NFK
John Turgoose VE3NFK Altair Electronics Ltd
750 Progress Ave., Kingston, Ontario, Canada K7M 7E1
tel: 1-613-384-3876 fax 1-613-389-6467 www.altair.ca
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------------------------------
Date: Thu, 29 Jun 2000 11:39:49 -0400
From: "Richard B Drake" <rbdrake@erols.com>
Subject: RE: [psk31] IF I SEE IT I HEAR IT
David,
On several occasions, HF bands, I have called CQ, stood by for an
answer, saw nothing but noise on the waterfall display, heard
nothing but noise and have been amazed to see a reply printing out
on the screen. Copy wasn't solid, but it was good enough to log a
contact. That's not the norm, but it happens.
- ---
73, Rich - W3ZJ
> -----Original Message-----
> From: owner-psk31@aintel.bi.ehu.es
> [mailto:owner-psk31@aintel.bi.ehu.es]On Behalf Of
> Ke4yyddave@aol.com
> Sent: Wednesday, June 28, 2000 10:22 PM
> To: psk31@bipt106.bi.ehu.es
> Subject: [psk31] IF I SEE IT I HEAR IT
>
>
> Articles in QST and CQ this month indicate that psk31
> has the capability to
> copy stations you can't hear. Is this because the
> speaker is unplugged or
> physical disabilities? In my short experience on
> psk31, mostly on 2m and 6m,
> I have found that if a signal is on the screen, I can
> hear it. Several times
> on 6m I have heard a signal faintly, but nothing on the screen.
>
> Does this indicate a problem with my equipment or is it normal?
>
> Thanks for all your help.
>
> 73, DAVID KE4YYD NEED MORE PSK31 ON VHF
>
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> +++++++++++++++++
> to unsuscribe from the list send to
> majordomo@aintel.bi.ehu.es a message
> with a text line as follow: unsubscribe psk31 or
> unsubscribe psk31-digest
>
> More instructions on PSK31 Webpage:
> http://aintel.bi.ehu.es/psk31.html
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> +++++++++++++++++
>
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------------------------------
Date: Thu, 29 Jun 2000 12:05:51 -0400
From: Vince <wa2rsx@worldnet.att.net>
Subject: Re: [psk31] IF I SEE IT I HEAR IT
Hello David:
The capability of copying PSK31 signals that cannot be heard by the radio
operator is NOT due to a speaker being unplugged, nor is it due to any radio
operator's physical disability.
A PSK31 signal that is not audible and/or not showing on the program's tuning
display screen CAN BE detected, decoded, and yield useable screen printout of
information when a modern radio receiver and appropriate DSP devices are used
properly.
I don't think what you have observed/experienced is an indication of a problem
with your radio and computer equipment.
I have not as yet visited my local library to read those magazine articles, so, I
don't know yet just how the information that prompted your questions was
presented. However, I offer the following:
The information presented within Peter Martinez's psk31sbw.exe Help File gives an
excellent explanation of decoding and modulation theory for PSK(31) signals.
Other Help Files from other PSK31 programs also present the technical information
that would allow an understanding of why it is "possible" to decode a PSK31
signal and obtain screen print without actually "hearing" the signal.
A short answer as to why decoding is possible is: due to the combination of
Digital Signal Processing (DSP), excellent software, and modern radio equipment.
I suggest that you read and study the information that is available, in those
Help Files and elsewhere via the Internet webpages for PSK31, in order to obtain
answers your questions. Some of the key points to think about, among others, are:
the signal intelligence is encoded within the Phase angle, rather than within
the amplitude variations, of the desired PSK31
signal (i.e., consider the theory of PhaseShiftKeyed signal demodulation),
and
there may be several decodeable PSK31 signals within the receiver's pass
band and what is audible may not actually be the
desired PSK signal (i.e., consider the bandwidth characteristics of a PSK31
signal and those of the receiver's I.F.
pass band response).
Ke4yyddave@aol.com wrote:
> Articles in QST and CQ this month indicate that psk31 has the capability to
> copy stations you can't hear. Is this because the speaker is unplugged or
> physical disabilities? In my short experience on psk31, mostly on 2m and 6m,
> I have found that if a signal is on the screen, I can hear it. Several times
> on 6m I have heard a signal faintly, but nothing on the screen.
>
> Does this indicate a problem with my equipment or is it normal?
>
> Thanks for all your help.
>
> 73, DAVID KE4YYD NEED MORE PSK31 ON VHF
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------------------------------
Date: Thu Jun 29 12:14:08 2000
From: Shephed@aol.com
Subject: Re: [psk31] PSK31 class of emission question.
John es all.
I just enter PSK into my logs.
In a message dated Thu, 29 Jun 2000 11:30:20 AM Eastern Daylight Time, "John" <john@mm1dsp.freeserve.co.uk> writes:
<< As a newly licensed HF operator I would like to ask the group what is the
accepted class of emission that should be entered in the logbook when using
PSK31 mode? Would you believe, I phoned the RSGB and put this question to
them, only to be told "Phone the RA, they will tell you."
And on phoning the 'RA' they said "Just write DATA in that section."
I explained that 'DATA' is not a mode of emission and the reply was
"That doesn't matter, it's not mandatory."
I'll say no more...
Many thanks to everyone in advance.
Kindest regards,
John (mm1dsp/mm5jlt) Scotland.
G-QRP#10123
john@mm1dsp.freeserve.co.uk
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>>
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------------------------------
Date: Thu, 29 Jun 2000 12:27:47 -0400
From: Vince <wa2rsx@worldnet.att.net>
Subject: [psk31] Sound Blaster 16 IDE PnP card; model CT2940
Thanks to a friendly Ham opr I now have possession of a Sound Blaster 16
IDE PnP card.
I would like to install this in my 486dx2-66 machine, which runs Windows
95.
I am presently searching for an appropriate device driver for this model
CT2940 sound card.
If successful, I will then make use of the 486dx2-66 on the various DSP
modes.
If you are able to help with suggestions for locating the required
device driver, please contact me via eMail.
Thanks, es 73s, es HAVE FUN ~!~
de ~Vince~ QRV from IOTA NA-026
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------------------------------
Date: Thu, 29 Jun 2000 12:27:47 -0400
From: Vince <wa2rsx@worldnet.att.net>
Subject: [psk31] Sound Blaster 16 IDE PnP card; model CT2940
Thanks to a friendly Ham opr I now have possession of a Sound Blaster 16
IDE PnP card.
I would like to install this in my 486dx2-66 machine, which runs Windows
95.
I am presently searching for an appropriate device driver for this model
CT2940 sound card.
If successful, I will then make use of the 486dx2-66 on the various DSP
modes.
If you are able to help with suggestions for locating the required
device driver, please contact me via eMail.
Thanks, es 73s, es HAVE FUN ~!~
de ~Vince~ QRV from IOTA NA-026
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------------------------------
Date: Thu, 29 Jun 2000 13:14:42 EDT
From: Jkn1olo@aol.com
Subject: Re: [psk31] FD review (NOT) Please change the Subject Line
In a message dated 6/28/2000 9:52:29 PM Eastern Daylight Time,
k4jdh@hotmail.com writes:
<< Hello Warblers,
Well, I started this discussion and now have time to explain that the
"Windows Sounds" were the result of, strange computer, strange radio,
difficult conditions and so on. Again, sorry about that.
>>
I would humbly request that if your discussion goes far afield of the
original subject change the subject line. Or at least amend it so the rest of
the group is aware of the change of the thread. I this case it went from how
did field day go to why you should not use VOX or have your PC sounds turned
off, etc.
Normally we can all skine the titles to look at mail we're interested in
except when the topic takes a turn to left field.
Please forgive me for taking up the bandwidth but I had to vent.
73
John N1OLO
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------------------------------
Date: Thu, 29 Jun 2000 10:38:21 -0700 (PDT)
From: Carl Hyde <cshyde@yahoo.com>
Subject: Re: [psk31] PSK31 class of emission question.
I consider PSK-31 to be High Class Emissions as
opposed to those low class emissions like RTTY & CW
- --- Shephed@aol.com wrote:
> John es all.
> I just enter PSK into my logs.
>
=====
Carl HYDE
W2CSH
__________________________________________________
Do You Yahoo!?
Get Yahoo! Mail - Free email you can access from anywhere!
http://mail.yahoo.com/
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Date: Thu, 29 Jun 2000 11:11:01 -0700
From: Bob Williams <n7int@worldnet.att.net>
Subject: Re: [psk31] IF I SEE IT I HEAR IT
Personally, I find that is one of the most intriguing facts about
PSK-31. There can be no signal "railroad track" visible, and nothing out
of my speaker/headphones, and yet I'm in a good QSO. It's happened to me
many times since June of last year, and it's especially nice when 10
meters seems "dead", devoid of voice or even CW signals.
Thanks, Peter and everyone else who has made this mode what it is!!
Bob N7INT
Vince wrote:
>
> Hello David:
>
> The capability of copying PSK31 signals that cannot be heard by the radio
> operator is NOT due to a speaker being unplugged, nor is it due to any radio
> operator's physical disability.
> A PSK31 signal that is not audible and/or not showing on the program's tuning
> display screen CAN BE detected, decoded, and yield useable screen printout of
> information when a modern radio receiver and appropriate DSP devices are used
> properly.
>
> I don't think what you have observed/experienced is an indication of a problem
> with your radio and computer equipment.
>
> I have not as yet visited my local library to read those magazine articles, so, I
> don't know yet just how the information that prompted your questions was
> presented. However, I offer the following:
>
> The information presented within Peter Martinez's psk31sbw.exe Help File gives an
> excellent explanation of decoding and modulation theory for PSK(31) signals.
> Other Help Files from other PSK31 programs also present the technical information
> that would allow an understanding of why it is "possible" to decode a PSK31
> signal and obtain screen print without actually "hearing" the signal.
>
> A short answer as to why decoding is possible is: due to the combination of
> Digital Signal Processing (DSP), excellent software, and modern radio equipment.
>
> I suggest that you read and study the information that is available, in those
> Help Files and elsewhere via the Internet webpages for PSK31, in order to obtain
> answers your questions. Some of the key points to think about, among others, are:
>
> the signal intelligence is encoded within the Phase angle, rather than within
> the amplitude variations, of the desired PSK31
> signal (i.e., consider the theory of PhaseShiftKeyed signal demodulation),
>
> and
>
> there may be several decodeable PSK31 signals within the receiver's pass
> band and what is audible may not actually be the
> desired PSK signal (i.e., consider the bandwidth characteristics of a PSK31
> signal and those of the receiver's I.F.
> pass band response).
>
> Ke4yyddave@aol.com wrote:
>
> > Articles in QST and CQ this month indicate that psk31 has the capability to
> > copy stations you can't hear. Is this because the speaker is unplugged or
> > physical disabilities? In my short experience on psk31, mostly on 2m and 6m,
> > I have found that if a signal is on the screen, I can hear it. Several times
> > on 6m I have heard a signal faintly, but nothing on the screen.
> >
> > Does this indicate a problem with my equipment or is it normal?
> >
> > Thanks for all your help.
> >
> > 73, DAVID KE4YYD NEED MORE PSK31 ON VHF
>
> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> to unsuscribe from the list send to majordomo@aintel.bi.ehu.es a message
> with a text line as follow: unsubscribe psk31 or unsubscribe psk31-digest
>
> More instructions on PSK31 Webpage: http://aintel.bi.ehu.es/psk31.html
> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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------------------------------
Date: Thu, 29 Jun 2000 16:26:38 -0400
From: Jason Rearick <emailme@uzoom.net>
Subject: [psk31] ZAkanaka
Does anyone know how I can get a version of Zakanaka or when the version
of logger with it is coming out? Thank and 73
\
Jason
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------------------------------
Date: Thu, 29 Jun 2000 16:47:52 -0400
From: "Norman M. Keane" <nkeane@worldspy.net>
Subject: [psk31] Emissions
< Could it be that when John asks what type of emission PSK31 would come
under
> would he be referring to the types such as J3E (USB,LSB), A1A (CW), A3E
> (AM), F3E (FM) and F1D (FSK) etc. PSK31 would probably come under some
form
> of J3E but maybe it would be some sub-designation. My 2 cents. Norm W8KNH
> w8knh@arrl.net
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------------------------------
Date: Thu, 29 Jun 2000 14:21:50 -0700
From: "William E.(Ben) Bennett" <n7ivm.2@olywa.net>
Subject: [psk31] Extraneous Noises
Hello All,
I have followed the discussion about "windows" noises with some
interest although I have never heard them.
When I put together my set-up I already had an interface box between my radios
and my sound card [ I also use the sound card for signal analysis ]. There is an
Op-amp with selectable gain settings plus a manual gain potentiometer to ensure
the sound card was not overloaded.
The transmitter addition was essentialy as was shown in the May 1999 QST
except I added a reed relay to actually operate on the transmitter PTT line. In
the box I also have a signal level set for the transmit 'audio',which allows me
a smoother control of signal amplitude,than the gain controls in the computer
The transmit signal goes into the microphone input on the transmitter and the
box has a selector switch for Mike/PSK31.
Since I use the same COM port for my PK232 and PSK31 I use a simple A/B box
to select the destination.
It transpires that with this set-up it is not possible transmit the "windows"
signals.
I added an extra audio output to the transmitter using a tap ahead of the
audio gain control, [ after a while the deadle gets to be tedious, so now I can
turn it down without affecting the PSK31 reception]
I hope that this might help someone.
73 de N7IVN Ben
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------------------------------
Date: Thu, 29 Jun 2000 17:19:04 -0400
From: "Robert Lay" <w9dmk@crosslink.net>
Subject: Re: [psk31] windows sounds "Cure"
Dear John Turgoose and Fellow Warblers,
Before anyone gets wildly excited about the prospect of using TWO sound
cards in your PC, consider the number of limited resources that a typical
sound card requires - an IRQ, and two DMA channels. That is usually enough
to give you all of the configuration heartburn that you will need the rest
of your life.
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------------------------------
Date: Thu, 29 Jun 2000 17:22:11 -0400
From: "Robert Lay" <w9dmk@crosslink.net>
Subject: Re: [psk31] Sound Blaster 16 IDE PnP card; model CT2940
Dear Vince,
The model CT2940 does not ring a bell, but I would be surprised if Win 95
does not have a driver for that card. Have you installed it and told Win 95
to find a driver for it? If you haven't, then you should try that. The
Creative Labs driver situation is murky at best.
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------------------------------
Date: Thu, 29 Jun 2000 16:44:12 -0500
From: "J. G. Kincade" <w5kp@swbell.net>
Subject: Re: [psk31] PSK31 class of emission question.
I use "Nocturnal" if the contact is after 8 PM. I know, enough is enough...
73, Jerry W5KP
- ----- Original Message -----
From: <Shephed@aol.com>
To: <psk31@bipt106.bi.ehu.es>
Sent: Thursday, June 29, 2000 12:14 PM
Subject: Re: [psk31] PSK31 class of emission question.
> John es all.
> I just enter PSK into my logs.
>
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------------------------------
Date: Thu, 29 Jun 2000 21:56:12 +0000
From: Peter Martinez <Peter.Martinez@btinternet.com>
Subject: [psk31] Mode designation
From G3PLX
The ITU mode designation for PSK31 is G1B, the G standing for phase
modulation, the 1 standing for a single channel of digital
information, and the B standing for machine reception. Some people
say that all data modes are J2B, which means modulation with an audio
tone into an SSB transmitter, but that doesn't designate the mode
that is being transmitted by the tone. If you want to describe the
PSK31 signal that you are radiating rather than the way you are
radiating it then describe PSK31 as G1B.
73
Peter
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Date: Thu, 29 Jun 2000 21:46:38 +0000
From: Peter Martinez <Peter.Martinez@btinternet.com>
Subject: RE: [psk31] IF I SEE IT I HEAR IT
From G3PLX
If you are listening on VHF with a speakerfull of white noise, and a
weak PSK31 signal appears, you will probably be able to hear it in
the noise as well as you can see it on the waterfall and copy it on
the screen.
However, if you are listening on HF to a 3 kHz wall of PSK31 signals,
CW signals, Pactor and the like, and a weak PSK31 signal comes back
to you on a quiet 50Hz-wide bit of band in the middle of all these
noises, then you will print it on the screen, see it on the
waterfall, but the human ear-brain doesn't stand a chance of picking
it out.
73
Peter
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Date: Thu, 29 Jun 2000 23:38:38 +0100
From: "John" <john@mm1dsp.freeserve.co.uk>
Subject: [psk31] Re: PSK31 class of emission question.
Many thanks to everyone who took time to reply to my question on PSK31 class
of emission. For the sake of clarification to all concerned,
the logbook should show the class of emission as 'G1B'.
That is 'G' for phase modulation. '1' for a single channel of digital
information and 'B' for machine reception.
I hope this helps.
Kindest regards,
John (mm1dsp/mm5jlt) Scotland.
G-QRP#10123
john@mm1dsp.freeserve.co.uk
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Date: Thu, 29 Jun 2000 20:53:53 -0500
From: "Bob W5TX" <w5tx@arrl.net>
Subject: [psk31] Two tone generator
For those who might have and interest in audio tone generation with
computer.
Some time ago I downloaded a tone generator from the net(freeware).
I wondered if it could be run twice simultaneously to generate two tones for
testing of xmtrs etc.
The answer--you bet!
This is a neat way to provide audio tones for various test needs. If
interested you can download the freeware for windows at
http://www.world-voices.com/software/nchtone.html
In addition to single sine wave the program will generate several other
types of output including white noise which can be used for filter testing
in conjunction with spectrogram also running simultaneously.
Bob
w5tx@arrl.net
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End of Psk31 Digest V1 #440
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