Date   

N4ZUM in AL

ebruchac@...
 

Tnx for all who searched for N4ZUM in AL,during the 80M Sprint.
I'm not really equipped for 80M; 5W into an MFJ vertical and using the Z11
auto tuner to make it work just didn't cut it.

Excellent signals down here from Karen,Chris and the Steves though--hope
everyone had fun.

Catch y'all on the higher bands,(40/30/15/10).
73,
Ed N4ZUM
(near Trussville,AL)


80m in AL

ebruchac@...
 

We all are looking,but 80m psk dead down hr in AL.
KC8LJN booming,but unable to work him.
Y'all come back,you hear??
73,
Ed n4zum/qrp


Re: 80m Autumn Sprint

Stu <samalex@...>
 

well i am on 80m and no one around

Stu MM0BSM


80 Meters tonight from AL

Stephen Prior <smprior@...>
 

well pretty good - worked
K8IJ and N3DQU and w4ntg in VA

should be interesting - hope the hurricane does not stir up the band too
much!
73
de Steve
N3UYI


Re: 80m Autumn Sprint

Steve W3HF
 

Everybody -

Please watch for us little guys tonight. Some of us will only be
running a few watts into compromise antennas, so we won't be as loud
as the big folks out there. But we count as QSOs, too, so please look
for the weak signals.

BTW, if you didn't catch my drift earlier this week, I would suggest
that you NOT use the squelch function if you want to copy the weak
traces.

I hope to see AND work a lot of you tonight.

72,
Steve
W3HF

P.S. If you haven't seen the "72" sig before, it's the QRP version of
73. :-)


Re: 80 Meters

Karen Russo <w4gtm@...>
 

Sorry Jay, didn't see your signal or I certainly woulda answered
you. Hopefully, not as much QSB tonight for the Sprint.

CU all later! Karen W4GTM


Autumn Sprint

"Luděk Salač <ludek.salac@...>
 

Only 8 hours left until the first ever PODXS070 Club PSK31 80m
Autumn Sprint.

I' am ready :
TX antenne : deltaloop 40m hight or 3 el bobtaile vertical beaming NA
RX antenne : 300m beverage beaming NA

I am monitoring 80m band 18z 20.09.02 - 06z 21.09.02 - first contact OK ( central EU ) - NA in PSK mode ?

73, Ludek OK1VSL


Re: 80 Meters tonight from AL

Bills4570@...
 

The band was pretty good this evening out west. Bernie and I were able to work
Q5 and S9 at 250 and 100 mw respectively. Pretty fun. See you all tomorrow
evening.

Bill Schwantes
W7QQ

well pretty good - worked
K8IJ and N3DQU and w4ntg in VA

should be interesting - hope the hurricane does not stir up the band too
much!
73
de Steve
N3UYI




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Jim's GAZETTE Newsletter #130

N3DQU@...
 

Jim's GAZETTE
Newsletter #130
20 September 2002

Please feel free to forward this newsletter to any and all interested
parties, or to reproduce it in
any publication. All we ask is that you give credit where it is due.

SHORT NOTES: If you expect anything unusual from this QTH this week, please
consider my lot. There is now but 10 days before the 'packers' arrive to
bundle up all the small stuff in boxes, cartons, bags and wardrobes, so that
the movers can arrive the next day and put it all on the great big van which
will carry it to Florida. As we prepare for that modest event, we are
surrounded by workmen who, having ripped off all the siding and trim on our
house
last week, are now busy putting new siding and trim back on the house.
Banging air nailers are but part of the noise spectrum that includes air
compressors, generators, diesel powered backhoes, giant trash trucks and
noisy conversation. Progress, yes. Distraction, a great big yes!!

The recent trip to Florida worked out very well. Besides receiving shipment
number one (without a single blemish!!), I did have time to see a few friends
and spend a bit of time at the rig. The first attempt was a disaster. Nothing
appeared on the bands so I checked to make sure the antenna was connected.
Yep! A few hours later, there was a path into the Mediterranean and I worked
an SV, I8 and then the rest of Europe, just enough activity to assure me that
I
could still do all this digital stuff.

Then, late one night I decided to try EchoLink. I loaded the program and set
up the details and marveled at the vast list of those on-line, all purportedly
ready to talk. I called one or two at random and got no response, even though
it looked like everything was in order as the attempt began. Finally, I tried
to call NA2M, and after thinking I had a link, the 'no link' message appeared
once again. Bill and I exchanged Emails and, in our combined wisdom,
decided that I had a firewall problem, or, more precisely, a dual firewall
problem.

Here's the situation. My cable modem plugs into a router. The router acts as
a firewall and, when the Toshiba is connected to the router, EchoLink is
looking at two firewalls. Norton, you see, automatically adds yet another one
to the mix on the laptop. Man, my computer is safe . . . so safe that there
isn't a chance for a rogue voice message to venture over the wall, in either
direction.

This can't be a rare event. Many others have the same configuration, or
something very similar, so there has to be a reasonably simple answer. While I
may not be able to give up or get rid of the firewall in the router, the
Norton firewall could be eliminated. In any event, the first person to
respond with a
correct, simple, easy-to-execute answer to this problem will receive
unimaginable rewards (including a self-portrait on the N2HOS website!). Don't
delay.
Enter today!!

Finding a QSL manager should be such a simple task, given the power of the
Internet. Yet, there are constant requests on the reflectors for just such
info.
So, try these on for size. Ron ON7NX says that 'if you can't find it here,
you won't find it anywhere.' And, points to
http://www.qsl.net/pathfinder/WebClient.
Then, Bill K2NJ ( I wonder what state he's from?) says that you might go to
http://www.ampr.spb.ru/multi/index.html, or just go to Google.com and type in
the callsign! Interesting, to say the least. Try yours!

Then, to further complicate our lives, Dave WB5NHL chimes in with some very
interesting and timely news. KPSK for Linux can be investigated and
downloaded from http://1409.org/projects.kpsk/. Away we go!

PODXS Sweepstakes is upon us! It runs on Friday 20 September between 8PM and
2AM your local time! PSK31 on 80 meters only. Full details at
http://www.angelfire.com/folk/leonards/80mrules.html. Join in the fun (or
chaos).

A beautiful picture of a happy, smiling baby jumped out of an Email the other
day. It just so happened that it was a picture of young Iris. The image came
from the Ivory Coast and was sent by a very proud grandfather named Felix.
You may know him as TU2BB! Iris' mother is TU5AM. Iris doesn't stand a
chance and will no doubt be the youngest ham radio operator ever licensed in
TU. Hi! Thanks, Felix, for a marvelous photo!!

Most of us network socially much more smoothly than we do electronically. Or,
so it appears. While most of us can set up a simple peer-to-peer
two-computer network (a valuable tool around the house), the demands for home
networking have escalated faster than the cost of living. The first
networking development demanded the sharing of that expensive broadband
Internet connection. A very logical step, this led to the speedy development
of inexpensive routers for home use. Plug the modem into the router and
Voila!, you share the connection with two or three more computers around the
house. And all your problems are solved, at least for a while.

But wait! The cable companies then developed a new ID program, far more
complicated than the old-fashioned IP addresses. Call it MAC (not the Apple
variety!). This puzzled many and helped the cable operator to collect more
cash for second MAC addresses within your home.

Zap! Now, almost overnight, there are 'cloning' routers that can copy the MAC
address assigned to your computer and substitute as the computer
-in-residence. Plug in your computers and, once again and in peace, you may
share the Internet connection with the other machines in your house.

That's the end of the story?? No. Now add wireless to the mix! Go get a
cloning modem with both wired and wireless ports, connect the old-fashioned
PC's via cable, then roam around the house and garden with your wireless
laptop and enjoy the complete freedom of an 'unconnected connection.' This is
REAL fun! And, to top it all off, I can sit out by the pool with my Mac
notebook and browse or handle Email without even being aware that I'm on a
totally
different platform than the other computers on the router. Very rich
experience, that.

With all this development, most of it happening at warp speed, there is a
need for several on-line resources. Take your pick among these two excellent
sites. www.homenethelp.com and www.practicallynetworked.com present an
enormous array of reviews, comments, tutorials and so forth. In addition, PC
World offers several fine articles that might be of help. Try
www.pcworld.com/30506 or www.pcworld.com/30509.

Hurry up! Catch up!!

There's far too much to write about this time around. 30M RTTY? Yeah, sort
of. Why no low power category in some of the major contests? Maybe next
time. Mike AB7RU says, 'Where's the Clover?' Good question.

Ekki DF4OR is going to pick up the big job of supporting WF1B RTTY. A little
financial support is required for the required tools, but surely the
contesters
will go for this one. The plan calls for an update in November, in time for
the WAE test. Contact Ekki at ekki@plicht.de

Finally, Jay WS7I, after going through the tough job of checking the NAQP
logs, says it's time to thank Eddie for his monumental labors in handling all
those those major contests. Amen!! Eddie's Email is edlyn@california.com.
Send him a note now!!

73 de Jim N2HOS
jem@n2hos.com
GAZETTE at www.n2hos.com/digital


Re: 80 Meters tonight from AL

N3DQU@...
 

In a message dated 9/19/2002 11:27:37 PM Eastern Daylight Time,
smprior@att.net writes:

well pretty good - worked
K8IJ and N3DQU and w4ntg in VA

should be interesting - hope the hurricane does not stir up the band too
much!
73
de Steve
N3UYI
Your signal was not too bad Steve, especially when you were wrking Chas.
Big signal seen was W4GTM but guess she never saw me yelling back at her.
Lotsa QRM and QSB tonite, hpe 80 is better tomorrow nite...Jay


Re: 80m Autumn Sprint

Stephen Prior <smprior@...>
 

Yes and the dipole is in place and waiting for Friday!

Need some fine tuning but sure looks good.

See you guys on the waterfall!
73
Steve
N3UYI

----- Original Message -----
From: "Bernie" <kf4fhs@ywave.com>
To: <070@yahoogroups.com>
Sent: Wednesday, September 18, 2002 8:52 AM
Subject: [070] 80m Autumn Sprint





Only 2 days left until the first ever PODXS070 Club PSK31 80m
Autumn Sprint.

Friday, 20-September-2002, 2000 - 0200 YOUR LOCAL TIME.

Please read the rules carefully. They can be found at:

http://www.angelfire.com/folk/leonards/80mrules.html

Direct any questions to:

kf4fhs@ywave.com

73, Bernie / KF4FHS






Check out the 070 Club website at
< http://www.podxs.com/html/070_club.html > for the latest information on
070 Club activities.
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80m Autumn Sprint

Bernie <kf4fhs@...>
 

Hey Everybody,

Tomorrow's the day for the first ever PODXS070 Club 80m PSK31 Autumn
Sprint.

I'm going to be testing the waters this evening at around 02:00z, so if
anybody wants to give it a try, I'll be around 3580khz.

A complete list of rules can be found at:

http://www.angelfire.com/folk/leonards/80mrules.html

Please send any questions to:

kf4fhs@ywave.com

73, Bernie / KF4FHS


Re: 80m Autumn Sprint

The Maryland Crofts <croft@...>
 

Hey Ernie-

Did you get my last message about the "bad" K3VOA signal???

John

Ernest Mills wrote:


Yea! Jay,
One senior moment and the cage opens.
Always remember - He who laughs last, laughs longest. :) Ernie

----- Original Message -----
From: <AA8QQJMauch@aol.com>
To: <070@yahoogroups.com>
Sent: Wednesday, September 18, 2002 9:40 AM
Subject: Re: [070] 80m Autumn Sprint

Hey Ernie,
Looks like it's your turn.
73 & Thanks,
Jay - AA8QQ


Check out the 070 Club website at
< http://www.podxs.com/html/070_club.html > for the latest information on
070 Club activities.
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070-unsubscribe@yahoogroups.com or N3DQU@aol.com.



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< http://www.podxs.com/html/070_club.html > for the latest information on 070 Club activities.
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--
**********************************************************************
* John & Kathy Croft * http://patriot.net/~croft *
* Silver Spring, MD * KC3T TEN-TEN 68155 * K3NJ TEN-TEN 67398 *
*--------------------------------------------------------------------*
* -monitoring N3AUY/R 29.66 MHz (141.3 Hz)- *
**********************************************************************


Re: 80m Autumn Sprint

Ernest Mills <emills@...>
 

Yea! Jay,
One senior moment and the cage opens.
Always remember - He who laughs last, laughs longest. :) Ernie

----- Original Message -----
From: <AA8QQJMauch@aol.com>
To: <070@yahoogroups.com>
Sent: Wednesday, September 18, 2002 9:40 AM
Subject: Re: [070] 80m Autumn Sprint


Hey Ernie,
Looks like it's your turn.
73 & Thanks,
Jay - AA8QQ


Check out the 070 Club website at
< http://www.podxs.com/html/070_club.html > for the latest information on
070 Club activities.
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Re: PSK Squelch Function and another "effect"

Dave Kjellquist, WB5NHL
 

Would you care to share your thoughts on soundcard
dynamic range, and how it
relates to, and compliments/degrades receiver
dynamic range when it comes to
weak PSK signal work. Are there any preferences WRT
sound card performance for
PSK? Are there any preferred gain combinations
(receiver gain vs soundcard
gain) that maximize receive performance on PSK-31?

Since getting into PSK-31 a couple years ago, I have
wondered if one would
benefit from a higher performance sound card; one
with greater dynamic range.

Quite honestly I really haven't seen significant
issues with soundcard dynamic range either personnelly
or in print. However, now that you ask I will check
the signal processing code vs. card specs.

My biggest issue is with the big guns and us little
guys (low power and poor antennas) within the same
3kHz xcvr AGC bandwidth. Steve, is very correct about
FM & SSB. Unfortunely, xcvr AGC action adjusts the
detection threshold. I have heard complaints about
power but frankly hadn't seen a real bad one until
last night! The brag file reported 100 WATTS output
to a TA33!!!! Given the power-bandwidth product of PSK
that is eqivalent to about a 10Kw SSB signal. It seems
to be getting worse rapidly.

Quickly is coming the day for QRP calling freq on PSK
as we all pile into the lower bands on this part of
the sunspot cycle. I guess this is good and
bad.....bad that it is needed....good that PSK is so
popular it suffers from the problems of the other modes.

Dave


Re: 80m Autumn Sprint

JACK WEST <w7ld@...>
 

Thanks Bernie,
Your explanation really helped.
Jack / W7LD

----- Original Message -----
From: "Bernie" <kf4fhs@ywave.com>
To: <070@yahoogroups.com>
Sent: Wednesday, September 18, 2002 8:56 AM
Subject: Re: [070] 80m Autumn Sprint


Hey Jay,

Don't bother him, he's busy converting UTC to Local time :-)

Hey Ernie, When the big hands on the 12 and the little hands on the 8,
start callin CQ :-)

73, Bernie / KF4FHS



Hey Ernie,
Looks like it's your turn.
73 & Thanks,
Jay - AA8QQ



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< http://www.podxs.com/html/070_club.html > for the latest information on
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Re: PSK Squelch Function and another "effect"

Bills4570@...
 

David,

I have to admit that, at first I thought Steve was pretty far flung with his
survey about PSK-31 squelch use by operators, but as usual, he has managed to
catalyze an interesting discussion. Your response was well stated and
explained some decoding funtionality that I have wondered about for some time
now.

You're not the first to recommend using the spectral display for weak signal
work, and now I know what's behind that preference.

Would you care to share your thoughts on soundcard dynamic range, and how it
relates to, and compliments/degrades receiver dynamic range when it comes to
weak PSK signal work. Are there any preferences WRT sound card performance for
PSK? Are there any preferred gain combinations (receiver gain vs soundcard
gain) that maximize receive performance on PSK-31?

Since getting into PSK-31 a couple years ago, I have wondered if one would
benefit from a higher performance sound card; one with greater dynamic range.

73, Bill Schwantes
W7QQ

Steve;
There is another "effect" relating to the color
waterfall that I have become aware of as a developer
of PSK31 sofware. Whether the waterfall colors are RGB
or CMY based unlike a greyscale the increments of
signal strength are continuous but may large steps
depending on the number of colors. In most waterfalls
the signal strength is logarthimic.

Let me illustrate the effects, suppose there are 2
stations. The first a QRP station has display strength
of 10 and the second a display strength 20. Thus, 10x
relative difference (remember logarithms). Assume the
noise floor is 3. BTW, 100x or more differences are
very common. This gives the weak station about 7db
above the noise (without heavy math, just about
copyable). OBTW, don't even try for IMD on the weak
station it will be bogus and even the strong station
in this example is suspect, but this is a different
topic for another time.

With a greyscale (usually 256 values) waterfall
display, the signal differences show as intensity
differences just above. Now for color, if we assume, 8
colors for the entire display range say 0-80. First
color 0-10, second 10-20 etc. Ooops..... The lower
signal and noise have the same color....gone!

I have contrived this example a little...but only a
little. I fundamentally do not like a waterfall
particularly color for weak signal work. The solution
is a spectrum display (which I'm adding to our Linux
Kpsk program) available on most PSK programs.

Steve, maybe if everone turns off the squelch and uses
spectrum displays we'll get some of those big gun
scores ;-)

---- 070@yahoogroups.com wrote:
I received six responses to my question on whether
any of you use
the squelch function available in PSK. As expected,
the responses
varied. Two people never use it, while the other
four use it at least
occasionally. Three of those four specifically note
that they turn it
off when working with weak signals, while the fourth
carefully
watches visually for the weak signals.

My conclusion based on this non-scientific sampling
is that the
people who responded to this question understand
what the
squelch function is, when to use it, and most
importantly when
NOT to use it. But I also think that there are many
PSK operators
who do not have this same understanding.

As a dedicated QRP operator, I recognize that my
signal is usually
one of the weaker ones on the waterfall. And I know
that it is
difficult for me to stand out in a pileup. But I
find that there are
many times when I try to respond to the CQ of a very
strong station
and it seems he can't hear me. Even if the other
station is running
100 watts, he's only 13 dB stronger than I
am--that's about 2 S-
units. (Note that antenna gain works both ways,
transmit and
receive, so the only real variables are our
transmitter powers and
our receiver sensitivities and noise levels.)

Last weekend in Delaware there were a few stations
that didn't
respond to my call, even though they were plenty
strong in my
waterfall, and their power levels weren't
drastically more than mine.
Perhaps their noise levels were higher than mine,
but I also
speculate that they may have set their squelches in
a way that
"filtered out" the weaker stations.

From a technical standpoint, I'd like to point out
that PSK acts a
lot more like SSB than it does FM. With FM, there is
a real
threshhold effect--below a certain SNR, there is
virtually no copy,
and just a fraction of a dB higher, there is very
good copy. This
type of modulation is wonderful for squelch, and you
can eliminate
the annoying background noise when there's no signal.

But PSK, like SSB, has a more gradual relationship
between SNR
and performance. Of course there is a large range of
signals that
have virtually perfect copy. But we've all
experienced the ranges of
signals that have varied from 10% copy up to 98%
copy. This is the
tricky range, where a squelch setting may eliminate
a lot of random
letters, but it may also eliminate a weak signal
with only 65%
copy. This level (65% copy) admittedly won't make
for a pleasant
ragchew. But 65% is plenty good enough, with a few
repeats, for a
contest QSO or for DXing.

I don't know of anyone who uses a squelch during SSB
operation,
especially during a contest or while DXing. Yes,
there is static, and
sometimes it's hard to make out the other station.
But we train our
ears and mind to ignore the noise and copy the voice
on the other
end. I think the same principle applies to PSK
operation. By
opening up the squelch a little bit more (or turning
it off
completely), there will be more random or erroneous
characters on-
screen. But just as you can train yourself to HEAR
through the
noise, you can also train yourself to READ through
the noise. And
sometimes that can be the difference between making
the contact
and not.

Let me encourage you to try operating without your
squelch on, or
at least opening it up more than usual. Yes, you
will see some
more garbage characters, but you'll also find that
you will be able
to copy some signals much better. And with a little
practice, I think
you'll find (as I did) that the garbage characters
won't bother you as
much as you think they will.

73,
Steve
W3HF

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Re: 80m Autumn Sprint

Bernie <kf4fhs@...>
 

Hey Jay,

Don't bother him, he's busy converting UTC to Local time :-)

Hey Ernie, When the big hands on the 12 and the little hands on the 8,
start callin CQ :-)

73, Bernie / KF4FHS

Hey Ernie,
Looks like it's your turn.
73 & Thanks,
Jay - AA8QQ


Re: PSK Squelch Function and another "effect"

Dave Kjellquist, WB5NHL
 

Steve;
There is another "effect" relating to the color
waterfall that I have become aware of as a developer
of PSK31 sofware. Whether the waterfall colors are RGB
or CMY based unlike a greyscale the increments of
signal strength are continuous but may large steps
depending on the number of colors. In most waterfalls
the signal strength is logarthimic.

Let me illustrate the effects, suppose there are 2
stations. The first a QRP station has display strength
of 10 and the second a display strength 20. Thus, 10x
relative difference (remember logarithms). Assume the
noise floor is 3. BTW, 100x or more differences are
very common. This gives the weak station about 7db
above the noise (without heavy math, just about
copyable). OBTW, don't even try for IMD on the weak
station it will be bogus and even the strong station
in this example is suspect, but this is a different
topic for another time.

With a greyscale (usually 256 values) waterfall
display, the signal differences show as intensity
differences just above. Now for color, if we assume, 8
colors for the entire display range say 0-80. First
color 0-10, second 10-20 etc. Ooops..... The lower
signal and noise have the same color....gone!

I have contrived this example a little...but only a
little. I fundamentally do not like a waterfall
particularly color for weak signal work. The solution
is a spectrum display (which I'm adding to our Linux
Kpsk program) available on most PSK programs.

Steve, maybe if everone turns off the squelch and uses
spectrum displays we'll get some of those big gun
scores ;-)

---- 070@yahoogroups.com wrote:
I received six responses to my question on whether
any of you use
the squelch function available in PSK. As expected,
the responses
varied. Two people never use it, while the other
four use it at least
occasionally. Three of those four specifically note
that they turn it
off when working with weak signals, while the fourth
carefully
watches visually for the weak signals.

My conclusion based on this non-scientific sampling
is that the
people who responded to this question understand
what the
squelch function is, when to use it, and most
importantly when
NOT to use it. But I also think that there are many
PSK operators
who do not have this same understanding.

As a dedicated QRP operator, I recognize that my
signal is usually
one of the weaker ones on the waterfall. And I know
that it is
difficult for me to stand out in a pileup. But I
find that there are
many times when I try to respond to the CQ of a very
strong station
and it seems he can't hear me. Even if the other
station is running
100 watts, he's only 13 dB stronger than I
am--that's about 2 S-
units. (Note that antenna gain works both ways,
transmit and
receive, so the only real variables are our
transmitter powers and
our receiver sensitivities and noise levels.)

Last weekend in Delaware there were a few stations
that didn't
respond to my call, even though they were plenty
strong in my
waterfall, and their power levels weren't
drastically more than mine.
Perhaps their noise levels were higher than mine,
but I also
speculate that they may have set their squelches in
a way that
"filtered out" the weaker stations.

From a technical standpoint, I'd like to point out
that PSK acts a
lot more like SSB than it does FM. With FM, there is
a real
threshhold effect--below a certain SNR, there is
virtually no copy,
and just a fraction of a dB higher, there is very
good copy. This
type of modulation is wonderful for squelch, and you
can eliminate
the annoying background noise when there's no signal.

But PSK, like SSB, has a more gradual relationship
between SNR
and performance. Of course there is a large range of
signals that
have virtually perfect copy. But we've all
experienced the ranges of
signals that have varied from 10% copy up to 98%
copy. This is the
tricky range, where a squelch setting may eliminate
a lot of random
letters, but it may also eliminate a weak signal
with only 65%
copy. This level (65% copy) admittedly won't make
for a pleasant
ragchew. But 65% is plenty good enough, with a few
repeats, for a
contest QSO or for DXing.

I don't know of anyone who uses a squelch during SSB
operation,
especially during a contest or while DXing. Yes,
there is static, and
sometimes it's hard to make out the other station.
But we train our
ears and mind to ignore the noise and copy the voice
on the other
end. I think the same principle applies to PSK
operation. By
opening up the squelch a little bit more (or turning
it off
completely), there will be more random or erroneous
characters on-
screen. But just as you can train yourself to HEAR
through the
noise, you can also train yourself to READ through
the noise. And
sometimes that can be the difference between making
the contact
and not.

Let me encourage you to try operating without your
squelch on, or
at least opening it up more than usual. Yes, you
will see some
more garbage characters, but you'll also find that
you will be able
to copy some signals much better. And with a little
practice, I think
you'll find (as I did) that the garbage characters
won't bother you as
much as you think they will.

73,
Steve
W3HF

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Re: 80m Autumn Sprint

AA8QQJMauch@...
 

Hey Ernie,
Looks like it's your turn.
73 & Thanks,
Jay - AA8QQ