HDTenEightyP/NetNews huggingface dataset:
From: dave@ips.oz.au (Dave Horsfall)
Subject: Re: PL-259s on 9913 Coax
Organization: IPS Radio and Space Services.  Sydney, Australia.
Date: Wed, 9 Sep 1992 01:23:07 GMT

In rec.radio.amateur.misc, rossi@gvlf9-q.gvl.unisys.com (Pete Rossi) writes:

>Why do the antenna/equipment manufacturers continue to insist on putting
>PL-259/SO-238 connectors on VHF/UHF antennas/equipment??

Because they understand the market very well.  Most amateurs could not
assemble an N/BNC connector to save their lives...

-- 
Dave Horsfall (VK2KFU)         VK2KFU @ VK2RWI.NSW.AUS.OC
dave@ips.OZ.AU                  ...munnari!ips.OZ.AU!dave
Newsgroups: rec.radio.amateur.misc,biz.stolen
From: ardai@zax.eda.teradyne.com (Michael Ardai)
Subject: *** ICOM W2A STOLEN in Boston Area ***
Originator: ardai@zax
Organization: Teradyne, Inc. Boston MA
Date: Mon, 14 Sep 1992 15:50:07 GMT


N1LRY had his ICOM IC W2A stolen in the Boston Area (from work) on 9/12.
It is serial number SN 008851 and has the Boston area repeaters (145.23, 
146.64, etc.) programmed into it.  Please keep your eyes open for it at
hamfests.  If you see it, call 800-235-7242.
Thank you.

/mike
 
-- 
\|/  Michael L. Ardai  N1IST   Teradyne EDA 
--- -------------------------------------------------------------------------
/|\  ardai@maven.dnet.teradyne.com
From: jkeller@pica.army.mil (Jerome Keller, PPD)
Newsgroups: rec.radio.amateur.misc
Subject: new topic...#6 washers
Date: 15 Sep 1992 06:26:16 -0700
Organization: UCSD Usenet Gateway
NNTP-Posting-Host: ucsd.edu

Yes! I have been concerned for some time now about actually TOUCHING the #6
washers as I mount them under the nuts of my equipment. It's only logical
that the skin oil deposited on the washers if I were to TOUCH them with my
BARE fingers could cause Many Adverse Involved Diverse Symptoms (MAIDS) in
my home-brew projects. So I use latex gloves at ALL TIMES when home-brewing,
especially around chassi's. Who wants a chassi with MAIDS? By the way, I
learned about this from my local garage mechanic who, by the way, says he
doesn't WORRY about putting his batteries on the concrete floor because "it's
clean enough to eat off of". Well, just let him find HIS batteries covered
with MAIDS.....he'll sing a different tune, all right !! I'm glad I read
this news-group so I don't HAVE to worry about all that.

A very grateful....Jerry, K1MER
Newsgroups: rec.radio.amateur.misc
From: berger@atropa (Mike Berger)
Subject: Re: Selling rigs to unlicensed personnel
Organization: University of Illinois at Urbana
Distribution: usa
Date: Fri, 11 Sep 1992 21:42:21 GMT

lwwald@lims01.lerc.nasa.gov (LARRY WALD) writes:
>This is in reference to the current thread about someone buying an Alinco 
>580T who did not have a license.
>Given that an individual may go into a gun store and purchase a rifle, 
>shotgun, or pistol, and not need to provide any proof of their ability to 
>safely handle, shoot, store, and understand their weapon, then the idea of 
>a person absolutely having a license to purchase a rig is sort of trivial.
*----
I've purchased a few radios that I couldn't legally operate to their
fullest extent with the license class I held at that time.  Some
people don't use every feature of their new equipment.  Others might
consider it good incentive to upgrade.  Still others might just want
it for modification or as a source of parts.

If I felt the radio would be used in a way that would interfere with
legitimate services, or be put into CB use, I wouldn't sell.  Otherwise
I don't consider it my business.  I buy a lot of surplus commercial
radio equipment.  Nobody has ever demanded that I be licensed to use
it before I buy it.

--
	Mike Berger
	Department of Statistics, University of Illinois
	AT&TNET     217-244-6067
	Internet    berger@atropa.stat.uiuc.edu
Newsgroups: rec.radio.amateur.misc
From: mjr@netcom.com (Matthew Rapaport)
Subject: Test your DJ-580T tone squelch (TSQL)!
Date: Sun, 13 Sep 92 19:41:18 GMT
Organization: Netcom - Online Communication Services  (408 241-9760 guest) 
Summary: Factory can modify time TSQL opens up audio
Keywords: Alinco DJ-580T tone squelch problem too long

Considering the mail I got in response to my posting under the subject:
"DJ-580T problem with audio drop out using T-SQL", I thought I would
summarize here as others seem to have the problem as well.

The tone squelch (TSQL) acts like a mute. The audio from any transmitter
not using the proper tone is muted, while RF is not, so you still see
the transmission being received on your S-meter.

But if the transmitter *is* using the proper tone, the squelch should
"open up" in 0.5 seconds or less. My problem (and that of others I've
heard from) is that it takes longer (sometimes 2-5 seconds) which is
unacceptable.

The is a *factory adjustable* setting. Alinco would not tell me how to
do it on my own (if possible at all). If anyone knows, let us know please.
Otherwise, I will send it back eventually...

Thanks to all who replied by mail...
-- 
matthew rapaport     Philosopher/Programmer At Large      KD6KVH
           mjr@netcom.com     70371.255@compuserve.com
From: trey@ut-emx.uucp (Trey Garlough)
Newsgroups: rec.radio.amateur.misc
Subject: Re: RG 8 atten @ 20 Mhz?
Date: 3 Sep 92 18:10:01 GMT
Organization: The University of Texas at Austin, Austin, Texas

In article <1992Sep1.152045.25046@linus.mitre.org> m14494@mwvm.mitre.org (Mike White) writes:
>Rajiv Dewan writes:
>> about 350' away from the radio
>> what kind of attenuation figures you might run into
>> >in that range? Maybe for RG-8?
>
>RG-8 has loss of .9 dB per 100 feet at 20 MHz.  350 feet would give a
>loss of 3.15 dB.  This is roughly half of one "S" unit: a station that 
>would be S9 with a much shorter run of coax would be S8.5;

Another way of looking it this would be to consider the difference
between a six or seven element yagi and a three element yagi.  A
seven element yagi with this much feedline loss would be a poorer
performer than a three element yagi (on a boom less than half the
length) with a .2 dB feeline loss (such as a much shorter run of 
cable TV hardline from the scrap heap).

It's all a matter of perspective.  If you were to put up a giant
yagi, then these loss figures would be unacceptable.  However, if
the choices are "on the air with poor feedline" and "not on the
air," then the choice is obvious.  :-)

Good luck.

--Trey, WN4KKN/6
  trey@tgv.com
Newsgroups: rec.radio.amateur.misc,rec.radio.swap
From: kd1hz@anomaly.sbs.risc.net (Michael P. Deignan)
Subject: Re: Hamfest Bogus Check Alert
Organization: The Rhode Island Internet Systems Cooperative Network
Date: Sun, 13 Sep 1992 16:49:18 GMT

salnick@dejavu.spk.wa.us (There is no substitute for displacement...) writes:

>this subject.  As usual, they have missed the main point:  The original 
>post was EMPIRICAL EVIDENCE...  that is, DATA. 

Funny, what I read was not EMPIRICAL EVIDENCE at all, simply OPINION.

MD
-- 
--  Michael P. Deignan                      / Sex is hereditary. If your 
--  Domain: mpd@anomaly.sbs.com            /  parents never had it, chances 
--    UUCP: ...!uunet!rayssd!anomaly!mpd  /   are you won't either...
-- Telebit: +1 401 455 0347              /
From: kipper@ccwf.cc.utexas.edu (Kip Ingram)
Newsgroups: rec.radio.amateur.misc
Subject: Flagpole Antennas
Date: 3 Sep 92 16:01:46 GMT
Organization: The University of Texas at Austin, Austin TX

Hi.  I've ascertained that my covenant basically prohibits all external
antennas, but that the association big shots feel that it would be un-American
to prohibit flagpoles.  So, I've decided to definitely do a flagpole antenna.
I'm interested in *any and all* info that anyone out there can give me on 
this subject.  I'd like to conceal a commercial vertical like the DX88 inside
a flagpole; has anyone done this?  Etc, etc, etc.  

Thank you *very* much.
Kip Ingram
N5RYK
kipper@ccwf.cc.utexas.edu

P.S: email me your replies and I'll write a nice summary.
From: markz@ssc.wa.com (Mark Zenier)
Newsgroups: rec.radio.amateur.misc
Subject: Re: Iso-Loop info?
Date: 9 Sep 92 18:13:28 GMT
Organization: SSC, Inc.,  Seattle, WA
X-Newsreader: Tin 1.1 PL3

William=E.=Newkirk%Pubs%GenAv.Mlb@ns14.cca.CR.rockwell.COM writes:
: >The Isoloop is not a miracle antenna.  It is roughtly equivalent
: >to other omni antennas, such as dipoles.  It may have a little
: 
: the dipole is an omni antenna?  the things you learn here.....

Sure is, if you run it vertically.


Mark Zenier  markz@ssc.wa.com
From: jseboldt@pnet51.orb.mn.org (John Seboldt)
Newsgroups: rec.radio.amateur.misc
Subject: Re: Help! I've got RF in the shack
Date: 13 Sep 92 05:05:01 GMT
Organization: People-Net [pnet51], Minneapolis, MN.

alanb@hpnmdla.sr.hp.com (Alan Bloom) writes:
>The antenna is too close to the shack, so the wiring between equipment
>is picking up RF. The solution is obvious.
>
>The other possibility is that RF current is flowing on the outside
>of the coax shield.  This could be due to an unbalanced antenna or
>to direct pickup, due to the coax being in the RF field of the antenna.
>A balun might fix the former problem.  Running the coax away from
>the antenna at right angles to the radiating element might fix the
>later.
>
>One general-purpose solution is to connect a quarter-wave wire to
>the chassis of the transmiter.  Use one wire for each band where
>you have a problem.  This worked for me even when I was using an
>end-fed longwire into a tuner.  (Talk about an unbalanced antenna!)
>
>AL N1AL

Depending on how serious the problem is, a simple "choke" balun, i.e., a coil
of coax somewhere before your rig, MAY be sufficient.  I use an antenna tuner
in the shack, the "balanced balanced" tuner from QST a while back, which is a
balanced L network with a choke balun on the input.  You just wind about 20
feet of coax on a 4 inch form.  You might even get by with just coiling up the
coax.  I've used random wire tuners and such since my early days, and since
putting in this system with its coax balun, have had far, far fewer problems
with RF in the shack, even with open wire lines.  Try this solution even for
other RF problems.

: John Seboldt...Minneapolis, MN...As a ham, K0JD...as a human,       :
: right-brained yet right-handed...as a musician, techie yet creative :
:   UUCP: {crash, tcnet, petrus, quest}!orbit!pnet51!jseboldt         :
:   ARPA: crash!orbit!pnet51!jseboldt@nosc.mil                        :
:   INET: jseboldt@pnet51.orb.mn.org                                  :
From: kd2bd@ka2qhd.UUCP
Newsgroups: rec.radio.amateur.misc
Subject: * SpaceNews 04-Nov-91 *
Date: 10 Sep 1992 23:04:13 -0700
Organization: UCSD Usenet Gateway
NNTP-Posting-Host: ucsd.edu

Subject: * SpaceNews 04-Nov-91 *


SB NEWS @ AMSAT < KD2BD $SPC1104
* SpaceNews 04-Nov-91 *

Bulletin ID: $SPC1104


                              =========
                              SpaceNews
                              =========

                       MONDAY NOVEMBER 4, 1991


SpaceNews originates at KD2BD in Wall Township, New Jersey, USA.  It
is published every week and is made available for unlimited distribution.
From: DAVEW@D.SSS.CO.UK (Dave Wade)
Newsgroups: rec.radio.amateur.misc
Subject: Mizuho MX3.5 XTAL Specifications
Date: 7 Sep 1992 02:19:49 -0700
Organization: UCSD Usenet Gateway
NNTP-Posting-Host: ucsd.edu

Hi,
 I have a friend with a MIZUHO MX3.5 <a small QRP 80 meter CW and SSB rig>.
This uses a VXO circuit to scan a small segment of the band. He would
like to change the segemnt and so needs a new Crystal. However Mizuho
no longer exist and the Crystal Spec is rather odd being designed to
work in the VXO, so a standard one won't do. Any one any ideas where a
proper replacment might be replaced. Dave Wade <G4UGM>.

N.B. I was interested in getting on of these for myself. Any comments
on the pros and conns of these, and what sort of price I might
have to pay.
From: TREVINO@accdvm.accd.edu
Newsgroups: rec.radio.amateur.misc
Subject: DCS
Date: 8 Sep 1992 08:07:14 -0700
Organization: UCSD Usenet Gateway
NNTP-Posting-Host: ucsd.edu

What is DCS ?? Who sells it ?? (Digital Coded Squelch)
From: kchen@Apple.COM (Kok Chen)
Newsgroups: rec.radio.amateur.misc
Subject: Re: Iso-Loop info?
Date: 9 Sep 92 23:01:19 GMT
Organization: Apple Computer Inc., Cupertino, CA

William=E.=Newkirk%Pubs%GenAv.Mlb@ns14.cca.CR.rockwell.COM writes:

>>The Isoloop is not a miracle antenna.  It is roughtly equivalent
>>to other omni antennas, such as dipoles.  It may have a little

>the dipole is an omni antenna?  the things you learn here.....


Eh?  I didn't see where the original poster said anything about
*horizontal* dipoles.

Kok Chen, AA6TY				kchen@apple.com
Apple Computer, Inc.
From: gary@ke4zv.uucp (Gary Coffman)
Newsgroups: rec.radio.amateur.misc
Subject: Re: RG 8 atten @ 20 Mhz?
Date: 10 Sep 92 07:16:54 GMT
Reply-To: gary@ke4zv.UUCP (Gary Coffman)
Organization: Gannett Technologies Group

In article <514@arrl.org> zlau@arrl.org (Zack Lau) writes:
>
>Actually, my experience operating DX contests out in Hawaii indicates
>that those monster antennas often buys more like 20 dB.  In other words,
>really big stations will be audible even during deep fades, while other
>stations just aren't there (you see them in the contest writeups). I've
>come to the conclusion that its the the vertical pattern that is really 
>important--compare the radiation patterns at low angles, say 3 or 4 degrees.
>Of course, this is during marginal conditions.  During really wild, excellent
>conditions, the big arrays lose their immense advantage (barely workable vs
>no contact). 

Well, it can't be the forward gain, Zack, so it has to be the radiation
angle that makes the 20 db difference. I think most of that is due to
the fact that the monster stations use towers that are at least 1/2
wave tall to mount their monster beams. Probably a little 3 element
job would be nearly as good up there. Getting up above the near field
effects of ground should lower the main lobe, and allow taking advantage 
of the 3 db ground reflection gain in the far field at low takeoff angles
which should improve performance on long paths. If the low angle means
one less hop to the destination, then you're really talking.

I used to have a 3 element beam at 70 feet, and it worked remarkably
better for long haul work than the G5RV in the trees that I use now.
Much better than the 7 db of forward gain would indicate. However,
on the domestic paths I normally work, the G5RV is better, so down
came the tribander and up went the satellite antennas.

Gary KE4ZV
From: johnr@mik.uky.edu (john s roberts)
Newsgroups: rec.radio.amateur.misc
Subject: Kenwood TH78A Charging HELP!
Date: 9 Sep 92 11:48:30 GMT
Organization: University Of Kentucky, Dept. of Math Sciences

Yesterday I was listing to my TH78 using the included 7.2v
battery until it went dead (turing itself on and off
repeatedly).  I then wanted to take it with me in my car
so I left the battery in it and connected the 12v cigarette
adapter to it using it for about 20 minutes.  Then when I
got to my destination I turned the radio off, but left the
cord connected.  Later that evening I was able to listen
to the radio on the 7.2v battery alone for well over an
hour.

My question: does the 12v cigarette adapter in anyway charge
the battery.  I hope that it doesn't because then I have
to make sure I don't use it unless the battery is completely
dead and when I do use it make sure it charges for the full
12-15 hours.  What is going on here?

John
--
      --==+  John S. Roberts, Jr.     Internet: johnr@mik.uky.edu  +==-- 
      --==+  3466 Flintridge Drive         NeXT Mail Enjoyed       +==--
      --==+  Lexington, Kentucky      Home: (606) 272-1417         +==--
      --==+  40517-1119               Work: (606) 257-6100         +==-- 
Xref: sparky rec.radio.amateur.misc:15293 rec.radio.swap:2381
From: Jim_Sollows@mindlink.bc.ca (Jim Sollows)
Newsgroups: rec.radio.amateur.misc
Subject: Any Icom IC-25A mods?
Date: 13 Sep 92 20:58:57 GMT
Organization: MIND LINK! - British Columbia, Canada
Distribution: world

Does anyone have any mods available for the ICOM IC25A 2 meter mobile rig?

Jim Sollows VE7JLS
From: gary@ke4zv.uucp (Gary Coffman)
Newsgroups: rec.radio.amateur.misc
Subject: Re: Help With 432Mhz Yagi
Date: 12 Sep 92 12:33:21 GMT
Reply-To: gary@ke4zv.UUCP (Gary Coffman)
Organization: Gannett Technologies Group

In article <1992Sep11.052147.18096@kd4dts.dixie.com> jcw@kd4dts.dixie.com (John C. Wren) writes:
>Time to call for help.  I want to build a 432mhz Yagi.  There are two
>designs in the ARRL Antenna Handbook, both of which have good points
>and bad points.
>
>The first antenna is the NBS 3.2w 15 element antenna.  This one is
>real nice because the boom is under 8", which is a common size of
>1" aluminum box section.  However, I can't figure out how one is
>supposed to feed this thing.  There is no discussion I can find on
>how this might be done.

See page 18-10 near the bottom of paragraph 2. It says, "Generally
speaking, a balanced feed system is preferred in order to prevent 
pattern skewing and the possibility of unwanted sidelobes that
result from unbalanced feed systems." So there you have it. For
the insulated boom version, a folded dipole driven element with
a 4:1 balun would be a good choice, fed with CATV hardline. For
the plumber's delight version, a T match will fill the bill. See
Chapter 26 for information on how to build these.

>The second antenna is a 15 element Yagi, with a boom length of 117"
>(9.75 feet).  I understand how to feed this, but don't know what the
>implications of either shortening the inter-director length is, or
>just eliminating two of the directors would do.  I know it would obviously
>affect the gain and F/B ratio, but by how much?

Answering that question would require computer simulation with one
of the antenna design programs, or experimentation on the antenna
range. In general, monkeying with the spacing is more likely to
cause degradation of main, and side, lobe performance than simply 
dropping a couple of elements off the end.

>Can I use the feed technique from the second antenna to feed the first?
>Also, in the feed technique for the second, they mention using "Steatite"
>standoffs.  I'm not an antenna expert, but I would assume that these
>are insulated, seeing as the feed line is attached to these standoffs,
>and the otherside of the standoff would be ground.

Yes, you can use this T match design for the driven element of any of
the NBS antennas. Steatite is a trade name for a type of ceramic standoff
insulator. Come over and stare intently at one of my boomers to see
how to build a driven element like this.

Gary KE4ZV
From: MROWEN%STLAWU.BITNET@cunyvm.cuny.edu (Michael Owen W9IP)
Newsgroups: rec.radio.amateur.misc
Subject: 46m Dish on EME
Date: 15 Sep 1992 11:17:03 -0700
Organization: UCSD Usenet Gateway
NNTP-Posting-Host: ucsd.edu



**********************************************************

The Toronto VHF Society has received permission to activate
the 46 meter (150') steerable dish at the Algonquin Radio
Observatory.  We (VE3ASO, VE3EMS, VE3CRU, W9IP & others)
will use the dish during the ARRL EME contest (Oct 17/18
and Nov 14/15).  The dish is located in grid FN05xw, north-
west of Ottawa.

Plans are still being made.  Our initial intention is to
use the dish on 432MHz; later operation on 144 and 1296 MHz
is anticipated.  The dish is usable to about 30 GHz, so
higher-band operation is feasable.  The dish's pointing
accuracy is 20 arc seconds and it is solid for the first
120' of its diameter.

Barring unforseen circumstances, we will be on the air at
moonrise and remain active until moonset each day of the
contest.  We plan to transmit on 432.000 and listen both up
and down frequency.  We hope to use full legal power.  The
ONLY callsign will be VE3ONT.

Calculations predict that we will be able to work OSCAR-
type antennas and 100 (or fewer) watts.  No skeds are being
accepted; all operation will be on random.

Please watch this space for further developments.

Michael Owen W9IP
MROWEN@STLAWU

**************************************************************
Newsgroups: rec.radio.amateur.misc
From: lwwald@lims01.lerc.nasa.gov (LARRY WALD)
Subject: Selling rigs to unlicensed personnel
News-Software: VAX/VMS VNEWS 1.41    
Organization: NASA Lewis Research Center
Distribution: usa
Date: 11 Sep 1992 12:18 EST  

This is in reference to the current thread about someone buying an Alinco 
580T who did not have a license.

Given that an individual may go into a gun store and purchase a rifle, 
shotgun, or pistol, and not need to provide any proof of their ability to 
safely handle, shoot, store, and understand their weapon, then the idea of 
a person absolutely having a license to purchase a rig is sort of trivial.

Just my 2 cents.

larry, KE8GW, and firearms affecionado
From: bly@btree.uucp (Roger Bly)
Newsgroups: rec.radio.amateur.misc
Subject: Re: more about ham legends
Date: 11 Sep 92 06:20:06 GMT
Organization: Brooktree Corporation


I have noticed it also.  Lead-Acid cells DO discharge much faster
when sitting on concrete vs sitting on a table 4' high.
A semi-controlled experiment showed a 12% increase in discharge rate
when on concrete.  I don't believe temp or shock was a factor.

-Roger
From: wpns@miki.pictel.com (Willie Smith)
Subject: Re: Of PL259 on 9913 and other sins.
Organization: PictureTel Corporation
Date: Wed, 9 Sep 1992 17:09:23 GMT

In article <1992Sep1.192708.22577@news.acns.nwu.edu> rdewan@casbah.acns.nwu.edu (Rajiv Dewan) writes:
>
>                  Of UHF Connectors on 9913 and other sins
>                                on *HF*.

Rajiv,

9913 and UHF connectors don't mix for a number of reasons:

1) 9913 cable is of no practical use for HF in terms of attenuation.
RG-8 is nearly as good (0.3 dB more attenuation per 100 feet), costs a
_lot_ less, is more flexible, and is more weatherproof with PL-259
connectors.  9913 is only useful in 'real' VHF and UHF work, above say
30 MHz.

2) PL-259s are not suited for UHF work, above say 300 MHz (2M is
marginal, IMHO).  The impedance discontinuity you discussed becomes a
_lot_ more significant at (say) 450 MHz, so you must use a decent
connector like N-type.  At these frequencies the attenuation of RG-8
is about 2.0 dB per 100 feet, and 9913 is a lot more widely used.

Therefore, if you are talking about HF, you shouldn't use 9913, and if
you are talking about VHF/UHF you shouldn't use PL-259s.  Hence the
question of using PL-259s on 9913 shouldn't ever come up.  If someone
_gave_ you some 9913 for use on HF, I'd suggest you sell it and buy
some RG-8.

Willie Smith
wpns@pictel.com

Newsgroups: rec.radio.amateur.misc
From: tkelso@afit.af.mil (TS Kelso)
Subject: Two-Line Orbital Element Set:  Space Shuttle
Keywords: Space Shuttle, Orbital Elements, Keplerian
Organization: Air Force Institute of Technology
Date: Tue, 15 Sep 1992 21:58:36 GMT

The most current orbital elements from the NORAD two-line element sets are
carried on the Celestial BBS, (513) 427-0674, and are updated daily (when
possible).  Documentation and tracking software are also available on this
system.  As a service to the satellite user community, the most current
elements for the current shuttle mission are provided below.  The Celestial
BBS may be accessed 24 hours/day at 300, 1200, 2400, 4800, or 9600 bps using
8 data bits, 1 stop bit, no parity.

Element sets (also updated daily), shuttle elements, and some documentation
and software are also available via anonymous ftp from archive.afit.af.mil
(129.92.1.66) in the directory pub/space.

STS 47     
1 22120U 92 61  A 92258.25000000  .00075928  00000-0  25599-3 0    72
2 22120  56.9999  99.9735 0008844 286.2039 176.6558 15.89394833   261
-- 
Dr TS Kelso                           Assistant Professor of Space Operations
tkelso@afit.af.mil                    Air Force Institute of Technology