WPX PRACTICE
EDWOODS at PACTIME1.SDCRC.PacBell.COM
EDWOODS at PACTIME1.SDCRC.PacBell.COM
Thu Apr 18 16:13:09 EDT 1996
Let's see - I will be in Atlanta for about an hour and a half on Monday
nite. Anyone needing NV600O for WPX should have a decent signal into
the Airport on 147 MHz.
Those really desparate for NV600 should arrange for a waiting HF mobile
rig in the short-term parking lot outside the Delta portion of the
terminal.
I will be flying back via Dallas, so one chance only.
Eric, NV60000000000000OOOOOOOOOOOO
edwoods at pacbell.com
>From Bill Fisher KM9P <km9p at akorn.net> Fri Apr 19 03:19:11 1996
From: Bill Fisher KM9P <km9p at akorn.net> (Bill Fisher KM9P)
Date: Thu, 18 Apr 1996 22:19:11 -0400 (EDT)
Subject: Rectification as source of interference
Message-ID: <199604190219.WAA04408 at paris.akorn.net>
Someone recently made a comment about rectification as a cause of
interference. It is true that this type of interference can not be solved
by any stub or filter. I'm wondering if any one could pass on experiences
with this type of interference?
Dave Pruett (K8CC) and I had a discussion on this subject recently. I think
we concluded our non-shielded CATV hardline could be a source of this
interference. I noted during the WPX SSB contest that my noise on 15M (from
20M) went away when it was raining. May indicate rectification. Just a
guess for now.
Any thoughts from any experts?
Bill
---------------------------------------------
| Contesting Online... The ultimate |
| source of ham radio contest information |
| http://www.contesting.com |
---------------------------------------------
>From AD1C at tiac.net (Jim Reisert AD1C) Fri Apr 19 03:35:55 1996
From: AD1C at tiac.net (Jim Reisert AD1C) (Jim Reisert AD1C)
Date: Thu, 18 Apr 96 22:35:55 EDT
Subject: RS232 cards
Message-ID: <199604190237.WAA07936 at mailserver2.tiac.net>
On Thu, 18 Apr 1996 19:43:15 +-100 KK4HD wrote:
>I'm looking for a PC card with a few (up to four) serial ports. I want =
>to use it under Windows and Window95, and preferably the thing uses only =
>one IRQ, because my system has not much left. Any suggestions?
Paul, you can check out my WWW page on the subject:
http://www.ve7tcp.ampr.org/Software/ct/ct-4port.html
Be advised that if you want multiple ports to share a single IRQ line, then
the SOFTWARE must be written to handle this case. Most software is NOT!
73 - Jim AD1C
--
Jim Reisert <AD1C at tiac.net>
http://ve7tcp.ampr.org/~reisert/
>From John Brosnahan <broz at csn.net> Fri Apr 19 04:08:29 1996
From: John Brosnahan <broz at csn.net> (John Brosnahan)
Date: Thu, 18 Apr 1996 21:08:29 -0600
Subject: Stub QTHs 15M CORRECTION
Message-ID: <199604190308.VAA02111 at lynx.csn.net>
15M STUB LENGTH CORRECTION!!!
>I'm referring to a design for stubs published in the YCCC Scuttlebutt
>by Fred Lass, K2TR. What he suggests using on the 40 meter amp to
>null out 15 is a special stub; actually a pair of stubs. One is
>25'3" long, shorted. Added to that, tapped off the main line spaced
>no more than a barrel away is another stub whose job is to cancel
>the reactance of the first at 40 meters. The second stub is 7'8" long,
>open at the end. These lengths refer to RG-213.
The length of the shorted stub is incorrect in Tony's note for
nulling 3rd harmonic signals of 40M. The correct length is
15'3" for the shorted stub. The open stub length is correct
at 7'8". Some tuning may be required, depending on the
geometry and path length of the Tee connections. (I use
a 1" length of 1.5x1.5 square aluminum tubing and mount
four connectors on the four faces. 1 in and 1 out and 1 each
for the two stubs. Short them together with a low inductance
square of thin copper flashing that is rotated 45 degrees to
the box (remember, a word is worth a milli-picture). ie The
corners of the flashing sit on top of the four center pins of
the connectors.
Typical perfomance of the filter when constructed from RG-213
is about 38 dB at the center of the notch. When the stub
centered in the middle of the 15M band the short/open stub
combo will provide 30 dB or greater attenuation across all of
the 15M band.
73 John W0UN
John Brosnahan
La Salle Research Corp 24115 WCR 40 La Salle, CO 80645 USA
voice 970-284-6602 fax 970-284-0979 email broz at csn.net
>From Wes Attaway <wes at prysm.net> Fri Apr 19 04:17:09 1996
From: Wes Attaway <wes at prysm.net> (Wes Attaway)
Date: Thu, 18 Apr 1996 22:17:09 -0500
Subject: Multiple COM ports
Message-ID: <01BB2D74.CFAD06A0 at shr09-2.prysm.net>
I have been sing a Flexport 42 serial board by Quickpath Systems. It =
works great .... absolutely no problems. Four (4) COM ports and two (2) =
parallel ports. You have a choice of ten (10) IRQ levels and eight (8) =
address combinations when configuring the COM ports. I routinely =
operate with 2 TNCs, the radio, Internet and SSTV (WinPix Pro) all =
connected at the same time. I believe the cost is about $80 or so. If =
anyone is interested, let me know and I will dig out info on the vendor =
I ordered from. As I said, the board works extremely well.
--------------- Wes Attaway (N5WA) ----------------
2048 Pepper Ridge, Shreveport, LA 71115
318-7973012 (Office); 797-4972 (Fax)
------------------- wes at prysm.net ----------------------
>From Fred Hopengarten" <k1vr at k1vr.jjm.com Fri Apr 19 00:36:00 1996
From: Fred Hopengarten" <k1vr at k1vr.jjm.com (Fred Hopengarten)
Date: Thu, 18 Apr 1996 19:36:00 EDT
Subject: TO "BREAK-UP or NOT" ??
Message-ID: <3176d1e4.k1vr at k1vr.jjm.com>
On Wed, 17 Apr 1996 21:52:36 -0400, Kg4w at aol.com wrote:
> The main question of course is should he or
> shouldn't he break up the guys ?
The last time we visited this subject, three camps arose:
(1) Why bother breaking up guys? If you put a monetary
value on your time, buy and install Phillystran to a height
of 12 feet above ground. If you want to save some money,
use Philly on the top two sets and go with solid steel
below.
(2) Break 'em up. If you keep your eyes open you can find
good deals on grips, insulators, clips, whatever. Why
bother valuing time? The construction is part of the hobby.
(3) Don't break 'em up. You can always do it later when
you discover which are resonant and which are not. OR,
detune them by adding a few additional feet to change the
resonant frequency.
Me? I'm a Philly guy.
--
Fred Hopengarten K1VR
Six Willarch Road * Lincoln, MA 01773-5105
home + office telephone: 617/259-0088 (FAX on demand)
internet: k1vr at k1vr.jjm.com
"Big antennas, high in the sky, are better
than small ones, low."
>From georgec at techline.com (george claussen) Fri Apr 19 05:11:06 1996
From: georgec at techline.com (george claussen) (george claussen)
Date: Thu, 18 Apr 1996 21:11:06 -0700
Subject: Our Common Enemy!
Message-ID: <199604190411.VAA28801 at wishkah.techline.com>
Gregg Norman's disaster this past weekend reminded me of a quotation which
was attributed to Thomas Edison, "If you think you can, or if you think you
can't, your right". Seems to me to apply when we begin to worry about QRO,
antenna heights, best geographic location, etc. When it ain't fun, try
stamps! 73 es see you all in the pile-ups....de George K7WUW
george claussen --- A Subscriber at Techline
>From Marijan Miletic <s56a at s55tcp.ampr.org> Fri Apr 19 11:37:20 1996
From: Marijan Miletic <s56a at s55tcp.ampr.org> (Marijan Miletic)
Date: Fri, 19 Apr 96 06:37:20 EDT
Subject: TO "BREAK-UP or NOT" ??
Message-ID: <19141 at s55tcp.ampr.org>
Hi Fred, I thought you were Harward guy, not Philly :-) 73 de Mario, S56A, N1YU
>From Rhodes, Michael L." <RhodesML at corning.com Fri Apr 19 14:19:00 1996
From: Rhodes, Michael L." <RhodesML at corning.com (Rhodes, Michael L.)
Date: Fri, 19 Apr 1996 09:19:00 -0400 (EDT)
Subject: Multiple COM ports
Message-ID: <317793D1 at smtpgate.corning.com>
QuickPath has a web site - www.quickpath.com. However, the current price is
about $130. The board gets mentioned in Windows NT Magazine - 4/96 -Chaos
Corner - pg 91
----------
From: owner-cq-contest
To: 'cq-contest at tgv.com'
Subject: re: Multiple COM ports
Date: Thursday, April 18, 1996 10:17PM
I have been sing a Flexport 42 serial board by Quickpath Systems. It =
works great .... absolutely no problems. Four (4) COM ports and two (2) =
parallel ports. You have a choice of ten (10) IRQ levels and eight (8) =
address combinations when configuring the COM ports. I routinely =
operate with 2 TNCs, the radio, Internet and SSTV (WinPix Pro) all =
connected at the same time. I believe the cost is about $80 or so. If =
anyone is interested, let me know and I will dig out info on the vendor =
I ordered from. As I said, the board works extremely well.
--------------- Wes Attaway (N5WA) ----------------
2048 Pepper Ridge, Shreveport, LA 71115
318-7973012 (Office); 797-4972 (Fax)
------------------- wes at prysm.net ----------------------
>From DFREY at maila.harris.com (DFREY) Thu Apr 18 13:31:16 1996
From: DFREY at maila.harris.com (DFREY) (DFREY)
Date: Thu, 18 Apr 1996 08:31:16 -0400
Subject: CATV Hardline
Message-ID: <17798f00 at maila.harris.com>
Hi Bill,
In my experience, bad joints, rectifying or not, cause all sorts of
problems. Any nonlinear joint will create harmonics. Ever turn a
beam and have it touch a guy wire or another wire antenna? Instant
response from all the other stations in the room!
One war story:
My neighbor in Pittsburgh had terrible TVI whenever I was on the air -
any band, any power, any mode. A highpass filter on his TV didn't
help, reducing my power to 10W helped some. Changing to his rabbit
ears instead of the outside antenna cured it. A trip to the roof
revealed a 20 year old antenna showing the effects of the corrosive
Pittsburgh atmosphere (this was 20 years ago). I wiggled all the
joints in the antenna and the TVI performance improved enough to
convince the neighbor that the source of the TVI was HIS ANTENNA.
By the way, what is "non-shielded CATV hardline"?
Dick
>From LAWTON.I.F- at smtpgty.bwi.wec.com (LAWTON.I.F-) Fri Apr 19 15:19:43 1996
From: LAWTON.I.F- at smtpgty.bwi.wec.com (LAWTON.I.F-) (LAWTON.I.F-)
Date: Fri, 19 Apr 1996 10:19:43 -0400
Subject: Re[2]: RS232 cards
Message-ID: <177A05B0.1858 at smtpgty.bwi.wec.com>
DALCO AT 800-445-5342 HAS A P/N #49570 FOUR SERIAL/ THREE PARALLEL
CARD FOR $62.50 PLUS SHIPPING. THE UNIT IS TOTALLY FLEXIBLE AND YOU
DON'T EVEN NEED A MANUAL TO SET IT UP.
GOOD LUCK IKE LAWTON W2EOS .....
______________________________ Reply Separator _________________________________
Subject: Re: RS232 cards
Author: AD1C at tiac.net (Jim Reisert AD1C) at BALT.SMTP
Date: 4/18/96 10:35 PM
On Thu, 18 Apr 1996 19:43:15 +-100 KK4HD wrote:
>I'm looking for a PC card with a few (up to four) serial ports. I want =
>to use it under Windows and Window95, and preferably the thing uses only =
>one IRQ, because my system has not much left. Any suggestions?
Paul, you can check out my WWW page on the subject:
http://www.ve7tcp.ampr.org/Software/ct/ct-4port.html
Be advised that if you want multiple ports to share a single IRQ line, then
the SOFTWARE must be written to handle this case. Most software is NOT!
73 - Jim AD1C
--
Jim Reisert <AD1C at tiac.net>
http://ve7tcp.ampr.org/~reisert/
>From barry at w2up.wells.com (barry) Fri Apr 19 14:19:16 1996
From: barry at w2up.wells.com (barry) (barry)
Date: Fri, 19 Apr 96 09:19:16 EDT
Subject: TO "BREAK-UP or NOT" ??
Message-ID: <T7VmmD2w165w at w2up.wells.com>
Marijan Miletic <s56a at s55tcp.ampr.org> writes:
> Hi Fred, I thought you were Harward guy, not Philly :-) 73 de Mario, S56A, N1
Let's not forget that Philly is outside YCCC 150 mi radius, so anyone
using Philly gets their score credited to FRC :.)
--
Barry N. Kutner, W2UP Internet: barry at w2up.wells.com
Newtown, PA Packet Radio: W2UP @ WB3JOE.#EPA.PA.USA.NA
Packet Cluster: W2UP >WB2R (FRC)
.......................................................................
More information about the CQ-Contest
mailing list