Date   

seeking 070 club members from Atlanta GA, USA

andris.brunenieks@...
 

Hallo,

Is there in 070 club somebody from Atlanta, GA USA?

Its planned that I stay in this city from 11 till 22 of May.

That's can be a good opportunity meet You last year TDW European winner (Hi!).


Andris / YL2FD


Re: Ludeks Pictures

Duncan <zl3jt@...>
 

Hi Jay!
Nope! If you study the pictures carefully, even though the traces are very red, you
can see that the signals are way out past the 'twin carrier lines'. This is definitely
the fault of the transmission, not the reception. I have seen this on a lot of signals,
not anywhere near that strong.
Such signals utterly destroy the chance of working weak signals on the frequency!

I have written a little 'thesis' This is attached in MS Word as a Text document.

73s de Duncan Jungle Telegraph



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Unfortunately... Ludek has right...

Zoltan Bordas <borzol@...>
 

Ludik's pictures appear to be taken off the screen of DigiPan, or a very
similar program. I have used DigiPan since the very beginning, and yes,
turning down the gain (waterfall drive), will take the red out, but it
WILL
NOT narrow a signal that is being overdriven by the sender. If more
operators
would read the manuals or information that comes with their programs, and
if
they heed what they read, we would not see such WIDE BAND signals on PSK.
A
simple look at the ALC meter, or perhaps a response to someone suggesting
they turn down the audio from the computer, would eliminate these crummy
signals. I give Ludik a four star rating for his efforts to bring this
problem to the forefront. best 73 to all from
KA3X, Jay (070 club)
... and agree 100% with Jay...

I attach 3 snapshots taken yesterday evening:
1. a normal input level setup
2. a strongly overdriven input
3. a more higher signal at the input of the soundcard

It is noticeable that the spectrum in the waterfall is NOT the same as
Ludek's snapshot. My input is clearly overdriven, but other signals are
readable, and Ludek's signal is very wide destroying the whole band and
superimposing on other signals making the copy impossible. You cannot make
any further improvement to work near such a "trace". I see many times
signals like that, and yes, a little more knowledge about the theory of this
mode and more attention can make life much pleasant...

73 de Zoli / YO5CRQ


Re: CQC PSK31 Kontest

JHudak3rd@...
 

Steve,
By the powers invested in me by the travelers of the ionosphere, I hereby
assign you the temporary name of "Stroker", or sumthin' like that, for a
period to be determined by a vote of the 070 Worldwide group. All in
favor.......

da OD, (Old Dood),

KA3X


Re: New contest category ....

JHudak3rd@...
 

Ludik's pictures appear to be taken off the screen of DigiPan, or a very
similar program. I have used DigiPan since the very beginning, and yes,
turning down the gain (waterfall drive), will take the red out, but it WILL
NOT narrow a signal that is being overdriven by the sender. If more operators
would read the manuals or information that comes with their programs, and if
they heed what they read, we would not see such WIDE BAND signals on PSK. A
simple look at the ALC meter, or perhaps a response to someone suggesting
they turn down the audio from the computer, would eliminate these crummy
signals. I give Ludik a four star rating for his efforts to bring this
problem to the forefront. best 73 to all from
KA3X, Jay (070 club)


Re: CQC PSK31 Kontest

Steve W3HF
 

--- In 070@y..., DL2AYL@t... wrote:
Hi Steve,
I'd be ready to change my name to Xanthippe...
Erika/DL2AYL
Since it seems a number of stations get special callsigns for use in
the WPX contests, maybe we can get the operators to get special names
for this contest!

I wonder how to get a temporary name assigned ...... :-)

Steve


Re: New contest category ....

Dick Thompson <wb0dul@...>
 

Ludik, it looks like (to me at least) that you have your receiver gain turned up way too high.  Back off the gain. 
73,
 

----- Original Message -----
To: 070@...
Sent: Tuesday, April 23, 2002 12:03 AM
Subject: [070] New contest category ....

Pse create new contest category for "full band" stations.
How much there stations can work on one band ? ........
Pse look these pictures


                                                73, Ludek OK1VSL



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Re: CQC PSK31 Kontest

DL2AYL@...
 

Hi Steve,
I'd be ready to change my name to Xanthippe...
Erika/DL2AYL


CQC PSK31 Kontest

Steve W3HF
 

Okay, time to move on to the next contest (or should that be kontest?)

Has anyone else noticed the funny twist in the CQC Kontest scoring? A
few of you have commented on the unusual exchange (RST, S/P/C, name,
CQC # or power, rig) but I haven't seen anything on the score
calculations.

Turns out that there are two multiplier totals--S/P/C and names! You
get to count how many different first letters of names you work, up
to 26. (This is kind of like WPX, but with names, not callsigns.) So
the total score is QSO points x S/P/C x names.

I just looked at my log for the Rumble, and counted 15 different
initials for first names, so I'd end up with an extra x15 multiplier.
Of course, I got 15 over a 24-hour period, and the CQC Kontest is a
six-hour sprint, so it may be difficult to find many letters.

Looks like I'll be on the lookout for Quincy, Xavier, Zeke!

One final note--I don't see anything in the rules about working
stations once only, or once per band, or whether the S/P/C
multipliers are per band. Anyone know?

Steve
W3HF


Re: Ludeks Pictures

"Luděk Salač <ludek.salac@...>
 

My antenna 4el. QUAD for 20/15/10 m
2 el. QUAD fix W + 2 el. QUAD fix JA for 40m
inv. V for 80m
... all 40-45m high

TRX IC746, HI MF filter 250 Hz + LOW MF filter 150 Hz ( pictures is filter clear ..)


Ludek, OK1VSL

zl3jt@zfree.co.nz 23.4.02 11:53 >>>
de Jungle Telegraph
All is not good in Europe...I have never seen a red trace on my screen! Ludek must
have the biggest antenna, with the most gain to get red traces....Hi!
I suppose these people will be in the 'Great' category?
Seriously, that's appalling operation of PSK to the detriment of other operators
on the frequency...
The pictures tell all. I must say that one of them was making it all the way to New
Zealand from Eastern Europe, but not readable but I knew who he was from the stations
he 'worked'...
Apart from that Ludek I hope you did well!
73s Duncan


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Re: Ludeks Pictures

AA8QQJMauch@...
 

Hi Ludek,
The only time I have seen traces like that was when I was overdriving the
waterfall with the receive audio. All I had to do is turn down the gain in
the "Audio Properties" window from the receiver to the sound card input. No
more Red signals unless someone is REAL loud. Hope this helps.

73,
Jay - AA8QQ


Re: CQC PSK31 Kontest

AA8QQJMauch@...
 

Steve,
Ask Zoli to get on.
Jay - AA8QQ


Ludeks Pictures

Duncan <zl3jt@...>
 

de Jungle Telegraph
All is not good in Europe...I have never seen a red trace on my screen! Ludek must
have the biggest antenna, with the most gain to get red traces....Hi!
I suppose these people will be in the 'Great' category?
Seriously, that's appalling operation of PSK to the detriment of other operators
on the frequency...
The pictures tell all. I must say that one of them was making it all the way to New
Zealand from Eastern Europe, but not readable but I knew who he was from the stations
he 'worked'...
Apart from that Ludek I hope you did well!
73s Duncan


__________________________________________________
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http://www.zfree.co.nz/about-us/advert.html


New contest category ....

"Luděk Salač <ludek.salac@...>
 


Re: Last Yrs Scores

Ernest Mills <emills@...>
 

Hi Steve,
Let me check through the computer. I changed my system at rumble 6 and
on. Hope I still have the old stuff in the archives. Ernie

----- Original Message -----
From: "Stephen J. Melachrinos" <w3hf@arrl.net>
To: <070@yahoogroups.com>
Sent: Monday, April 22, 2002 9:29 PM
Subject: Re: [070] Last Yrs Scores


Ernie -

Thanks for the page. Now for the big question: Do you still have the
scores from Rumbles 1 through 5? I know I saw the scores for #5,
since that was the one I won in Super. But I'm not sure I ever saw
the scores for the previous ones.

It seems to me that a Rumble Scores History would be neat to
have on your web site. Simply leaving the pages online
(results01.html, results02.html, etc), with a simple index page,
would be enough.

I would love to be able to review how the number of entries
progressed, how the scores progressed, etc.

Thanks for considering this.

Steve


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Re: Last Yrs Scores

Steve W3HF
 

Ernie -

Thanks for the page. Now for the big question: Do you still have the
scores from Rumbles 1 through 5? I know I saw the scores for #5,
since that was the one I won in Super. But I'm not sure I ever saw
the scores for the previous ones.

It seems to me that a Rumble Scores History would be neat to
have on your web site. Simply leaving the pages online
(results01.html, results02.html, etc), with a simple index page,
would be enough.

I would love to be able to review how the number of entries
progressed, how the scores progressed, etc.

Thanks for considering this.

Steve


Re: Last Yrs Scores

Ernest Mills <emills@...>
 

Hi Jay!
These are last years scores in HTML. if you need conversion let me know. 73
Ernie

----- Original Message -----
From: <AA8QQJMauch@aol.com>
To: <070@yahoogroups.com>
Cc: <psk-tara@yahoogroups.com>
Sent: Monday, April 22, 2002 12:58 PM
Subject: [070] Last Yrs Scores


Does anyone have last years scores saved? I'd like to see them for
comparison.

Jay - AA8QQ



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Re: Lessons Learned

Steve W3HF
 

I find the comments about QRP PSK interesting
particularly from people with outdoor antennas and
even beams. Try a real challenge that Steve (W3HF) and
I live with -- attic antennas. My goal, watch out for
the next one Steve, is to beat W3HF.

73 Dave WB5NHL (Always 5 watts or less)
Oops. Sorry Dave. (Yours is in a batch I haven't read yet.)

There are two responses that are always QRP.

Steve
W3HF


Re: Lessons Learned

WB5NHL
 

I find the comments about QRP PSK interesting
particularly from people with outdoor antennas and
even beams. Try a real challenge that Steve (W3HF) and
I live with -- attic antennas. My goal, watch out for
the next one Steve, is to beat W3HF.

73 Dave WB5NHL (Always 5 watts or less)

---- 070@yahoogroups.com wrote:
I find it interesting all the comments made about
QRPers. Both Jay
and Bernie tried it out this contest. Bernie even
made a comment
about gaining some more understanding of (respect
for?) what the
QRPers have to put up with.

FWIW, I have not finished compiling all the results
for the survey,
so there's still time for those of you who have not
sent yours in.
But I do notice a trend with regard to the question
on QRP operation.
About half of the respondents have tried running PSK
QRP. But I think
only one of the respondents runs QRP "most" of the
time, and I know
there's only one who runs QRP all of the time. You
can guess who that
is. :-)

Like Jay AA8QQ, I never saw any traces on 80m,
though I did find two
signals on 40. Never tried 6m, though--the only
antenna for 6 I have
is the 817's rubber duck.

I have worked aurora on cw before and was
wondering if any brave
(foolhearted?) souls have thought to try aurora on
PSK at high
power? (Don't tear me up to bad on this one folks.)

I saw lots of loud/bright sigs out there that my
computer couldn't
make heads nor tails of. It looked like some
strange type of
encryption. I kept getting weird characters where
letters should
have been. Kind of like wrong parity causes on
wired digital
comms.
No tearing here, Jay. I think you answered your own
question. The
problem with aurora is that I believe there is
significant phase
distortion in that propagation. The P in PSK stands
for phase, as it
is the phase of the signal that carries the
information. So
distortion of the phase will destroy the information
in the signal
regardless of the power level.

The best signals for aurora propagation are those
that carry
information in the amplitude of the signal, like CW
and SSB. Anything
with a phase component (PSK, or FM) will be
distorted, often to
unusability. As for the digital modes, maybe MFSK16
would work. It
would certainly be better than PSK, as that too is
an amplitude-based
signal.

What you saw is exactly what Duncan was describing
when he said that
there were many signals he could see, and were loud,
but could not be
decoded. The phase of the signal was shifting faster
than the
receiver could track it, so the bits were being
demodulated in error.
This caused the conversion from bits to letters to
be erroneous. And
this is just like the parity error problem you
compared it to.

Did you happen to notice the phase detector window
on your computer?
If the signal is clean and loud, it should be a
straight vertical
line. A clean but weaker signal will still be
vertical, but just not
as long. If there is distortion, or too much noise,
you will start
seeing lines at other angles--these are bits that
are being
demodulated that are not perfectly clean. The more
of those you see,
the more likely you are to see errors in reception.

Props stunk! I can usually work lots of EU from
here on 5 watts.
Not this
time! Only 2 EU's I heard were DL2AYL and UX0FF.
Agreed. I never heard Erika, though, on any band.
Managed to get Nick
UX0FF once, and did get one EA and one CT. But
nothing else from
central or North Europe.

Oh well, there's always next time.

73,
Steve
W3HF


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Rumbled half the world, anyway

Wirsing, James K. <James.Wirsing@...>
 

Most of my activity happened after 0900Z (a few at the start of the
contest), and throughout the day the bands slowly got better and better.
Heard Duncan at my QTH in Grand Rapids, Michigan, from 0900 to about 1300Z,
though ... a nice surprise.

Almost all of the signals, besides Duncan and UX0FF, and contacts were to
the southeast, south, and southwest from my QTH. A VE7 and VE2 sneaked in
there somehow on 20m. Toward 1900Z I noticed that the east coast USA was
working Europe/Africa, but all I heard was the CN8 over that way (and
UX0FF).

Almost all the signals I saw were clean and readable; only a couple from SA
were garbled. The gang really had a nice set of signals this year. I
"oops-ed" a couple of times ... at the hour and ten after I was on 6m 50.290
doing some CQs, and once in a while I'd go back to a lower band and forget
to readjust the mic gain right away. Sorry.

24 hours is lots of fun, and it's about all my poor brain can stand. The
IC-746 and R7000 worked wonderfully, and I really like them a lot.

I wonder if the other half of the world had their own contest. :-) Thanks
to all ... it was lots of fun!

Ken KF8OR