HDTenEightyP/NetNews huggingface dataset:
Newsgroups: rec.radio.amateur.misc

In rec.radio.amateur.misc, miles@emx.cc.utexas.edu (Miles Abernathy) writes:

>What is the polarization of the signal from a 1/2-wave dipole antenna
>configured in the shape of the letter L? Assume one leg of the L is
>vertical, the other horizontal, and it is fed with balanced line.

Assuming you are looking at the antenna perpendicular to the plane
formed by the two wires, the polarization would be at a 45 degree angle.

>what is the signal polarization from a 1/4-wave ground plane or
>vertical antenna fed with balanced line?

Assuming you have some kind of current balun or common-mode choke at
the feedpoint so that there is no feedline radiation, then the type
of feedline should not matter.  Answer: vertical polarization.

AL N1AL
From: giasij@vccnw06.its.rpi.edu (J L Luigi Giasi)
Subject: Re: FCC and Special License Requests
Organization: Rensselaer Polytechnic Institute, Troy, NY
Date: Sat, 3 Oct 1992 01:58:21 GMT

In article <1992Oct02.153445.2871065@locus.com> dana@locus.com (Dana H. Myers) writes:
>In article <1992Oct1.175943.20678@ke4zv.uucp> gary@ke4zv.UUCP (Gary Coffman) writes:
>
>[Gary is referring to the FCC software to generate ham licenses]
>
>>And they've only got one guy who knows how to run it, and he only works 
>>on Thursdays. (That part's true. Amateur licenses are only run on Thursdays.)
>                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>
>That's interesting. I recall hearing once that ham licenses are issued on
>Tuesdays. Furthermore, my Novice ticket was issued coincidentally with my

Well Dana has it correct, the licences are actually processed on a 
Tuesday. However, Gary is not totally off with his Thursday info...
Thursday morning is the time when the data from the processed liscences is
added to the Gettysburg Database. Si even though the liscences are issued
and processed on Tuesday the FCC doesn't even know of there existence until
Thursday morning! Foor anyone wishing a more detailed blathering on the
subject, I refer you to my earlier post a few months back.

73 de Luigi AA1AA
From: Mike_Beezley.houstoncssc@xerox.COM
Newsgroups: rec.radio.amateur.misc
Subject: Re: Info-Hams Digest V92 #994
Date: 28 Sep 1992 08:10:46 -0700
Organization: UCSD Usenet Gateway
NNTP-Posting-Host: ucsd.edu

>>	Has anyone had a problem with the Periphex brand batteries...I bought a
BP-84S 18 months ago that has failed. The tech at Periphex
told me that there was nothing that I could do to repair this battery
and that I should buy another one.	(Glen Shiery  WD6FMZ)	<<

Glenn

I bought (2) 3S batteries for my Yaesu HT about 2 yrs ago and both of them died
within weeks of each other.  I have talked to other hams and have been told
that 2yrs is a pretty good lifetime considering the usage they go through.  I
am going to try to salvage the good cells from one and get one pack going
again.  It may not last very long but I am thinking about rigging up a battery
pack using camcorder batteries.  I bought my camcorder batteries about a year
before the HT batteries and they are still going strong.  But then they are
2Ahr vs the 1.2Ahr HT batteries.

Good luck
__mike (N5PWP)
Newsgroups: rec.radio.amateur.misc
From: tlc20700@uxa.cso.uiuc.edu (Thomas L. Carney)
Subject: Re: IC-735 Scanning Abnormality
Organization: University of Illinois at Urbana
Date: Tue, 29 Sep 1992 23:42:00 GMT

ws1c.UUCP%rocky.dnet@ws1c.UUCP (Andrea Preciado) writes:

>My IC-735, still under warranty, has picked up the strange habit of
>starting scanning from 14.0 MHz in the vfo no matter where in the
>vfo you are when you tell it to start scanning...

>Anyone know if this is common in these rigs or what?  Is it something
>to do with the microprocessor?

READ the manual!!!!  The beginning scan frequency is the one in the NEXT
TO LAST in the memories.  The scan stop frequency is the one in the LAST
memory channel.  No matter where you are on either VFO, it will start and
stop on those two frequencies.  If you want to change the start and stop
frequencies of the scan, change those two frequencies in the last two
memory channels.  

You can be tuned on ANY frequency but the scan is not conntrolled by the VFO.
I know ICOM's instructions are a little hard to follow, but if you follow 
them CAREFULLY  you will succeed.  I know, I used to own a 735.

Tom

"If all else fails, read the ##&**()&%%#!@$^&^_)__}{ tech manual!"
				 ---anonymous E-6 in USAF.
From: drmsr@cislabs.pitt.edu (Marc S Rosenthal)
Newsgroups: rec.radio.amateur.misc
Subject: Pager Question
Date: 5 Oct 92 13:50:03 GMT
Distribution: na
Organization: University of Pittsburgh


	I have a question about motorola bravo pagers.  For my serach
and rescue group we have gone to a new paging company.  This means new
pagers at 454.100 Mhz.  I currently own a bravo pager which is set for
454.325 Mhz.  The question, by changing the frequency 225 khz, how much
will the sensitivity of the pager decrease. 
	I know that this might have been a topic before, but I did not
 
read the pager news.  
 
	I would appreciate any comments by email or via the newsgroup.  
Marc Rosenthal, Ph.D.
WB2FGV, EMT-P.
Newsgroups: rec.radio.amateur.misc
From: koning@koning.enet.dec.com (Paul Koning)
Subject: Re: ONE MORE BNC/N CONNECTOR QUESTION...
Reply-To: koning@koning.enet.dec.com
Organization: Digital Equipment Co., distributed systems architecture
Distribution: na
Date: Wed, 30 Sep 1992 21:57:14 GMT


In article <1992Sep30.194550.24984@gvl.unisys.com>, rossi@gvlf9-q.gvl.unisys.com (Pete Rossi) writes:
|>I need to make up a 4 foot cable with a N connector on one end and a BNC on
|>the other.   Is such thing possible?

No problem.  You can buy them from any number of cable/connector suppliers,
though they tend to charge a premium for doing the work for you.

|>1) Is there a BNC connector that will fit RG/8 (including 9913) size cable?

RG/8, you bet.  9913, I don't know.  (9913 seems to be one of those odd
sized cables for which few connectors exist.)

|>2) Is there a N connector that will fit RG/58 (or 59) size cable?

RG58, yes.  RG59, maybe, though that would be silly since N connectors are
50 ohms and RG59 is 75.  (There exist special 75-ohm BNC connectors, by
the way, though often people put 50 ohm ones onto RG59.  Some high end
video monitor cables come with real 75 ohm BNCs -- for example the ones on
my DEC VRT19.  As another aside, 50-ohm BNCs designed to fit RG59 are
sometimes sold by unscrupulous or ignorant dealers as "RG/8x BNCs".  They
aren't, and won't fit, though careful drilling and some luck can convert
them into ones that do fit...)

|>Are these connectors commonly available?  Would places like AES or HRO
|>carry them?

I've never tried, but I wouldn't be too optimistic.  Digi-key might have
them, though.  Certainly the major connector makers have them, and you
may be able to work with the local distributer.

|>Are they reasonable price?  $3-4 range?

It's hard to imagine any good N connector being that low, let alone an
odd one.  But I may be pessimistic, or you may be luckier...

|>Or, am I just better off using BNC -> N  and  N -> BNC adapters?

Depends.  I have a supply of UHF to BNC patch cords so I don't need so
many adapters.  For places where I know I want to go from X to Y, the
patch cord is handy.  Adapters then serve for the exception cases.  Part of
the reason is that they are another piece of hardware to deal with, and
I just like the reduced clutter from not having so many adapters.  This
seems to be basically a taste question, though, at least below microwave
frequencies.

|>=================================================================
|>Pete Rossi - WA3NNA                  rossi@gvl.unisys.com
|>
|>Paramax Systems Corporation - a Unisys Company
|>Electronic Systems - Valley Forge Labs - Paoli, Pennsylvania
|>=================================================================
|>

	paul koning, ni1d
From: jjw@precipice.chi.il.us (John Welch)
Newsgroups: rec.radio.amateur.misc
Subject: Re: Need wideband VFO (270 - 670 MHZ).
Summary: Phase lock to DDS, get DC to 2GHz with low phase noise
Keywords: DDS PLL VFO
Date: Fri, 25 Sep 92 10:37:15 CDT
Organization: Welch Research, McHenry IL, USA

mleech@bnr.ca (Marcus Leech) writes:

> I'm looking for a VFO that spans the range 270 - 670 MHZ.  Preferrably, it
>   should be stable, with low phase noise.  The application is radio
>   astronomy (searching for millisecond pulsars in the 200-600 MHZ
>   region -- 70MHZ IF).
>
> I've had a few thoughts that I'd like to bounce off the net:
>
> Use the UHF tuner from a TV and phase-lock it to an ovenized crystal.
>
> Find a broken wideband receiver whose VFO still works and use that.
>
> Use the VFO from a scanner.  Any idea how modular most radio-shack
>   type scanners are? Is the VFO easily extricable?

     Two questions leading to a suggestion -
1.  What frequency step would be acceptable?
2.  What's your technical level of ability?

     The suggestion - phase-lock an oscillator to a Direct
Digital Synthesized source.  Commonly available DDS chips can do
DC to 20 MHz in .0014 Hz steps - use a divide-by-100 chip in the
loop to get DC to 2GHz in 1.4 Hz steps.  (actual VCO performance
may vary.  State and local taxes, dealer prep and options extra.)
DDS chip price is around 75 for the DDS, 30 for the D-to-A
converter, add your favorite PLL and VCO and away you go!
From: chhibber@andromeda.rutgers.edu (Grizzly.45mag)
Newsgroups: rec.radio.amateur.misc
Subject: Antenna in a tree???
Summary: Antenna in a tree?  Too far out?
Keywords: antenna antennas tree
Date: 3 Oct 92 15:50:58 GMT
Organization: Rutgers Univ., New Brunswick, N.J.


	I would like to get your opinion on this.  Do you think it is too 
crazy to put an antenna in a tree?  Ofcourse it will not be a beam.  Just
an ominidirectional with a ground plane?  Maybe a 300-ohm twin lead J-pole?
Anyone try it before?  I may be able to put it on my chimney, but my chimney
is not the strongest brick chimney around.  What about the antenna on a mast
(8-10 ft) on a tree?  Too stupid?  Besides I can get the antenna higher on
the tree than the chimney.

	Please send me your opinions.  I want to hear what you think before
I actually decide to do it.  Maybe you will save me some trouble or gimme
ideas that will save my neck.

	In this cruel world, please save bandwidth and reply to:
chhibber@andromeda.rutgers.edu  or post if you think others will benefit much.

	Either way, Thanks in advance.  I know I can always get good advice 
here.  Well, cheerio!


-- 
This is a sick world we live in today......Keeps me entertained!! --Me, Calvin.
Who said that the decimal number system was based upon the the 10 fingers on
our hands????  Our hands produce a an 11 digit number system, not 10.
Think about it!  |||||||||| N2RVJ ||||||||||    chhibber@andromeda.rutgers.edu
From: paul@n3eop.pgh.pa.us (paul)
Newsgroups: rec.radio.amateur.misc
Subject: Re: DJ580t FL trouble...
Date: 27 Sep 92 15:28:19 GMT
Organization: CrossRoads in Elizabeth, PA

hemstree@greyrock.mso.colostate.edu (Charles H. Hemstreet IV) writes:

> My radio has been acting wierd lately.  I noticed that even though I
> have had the FL active I have been able to change the frequency by
> accident without even touching the keypad.  This seems to be linked
> with my touching the antenna and an external speaker/mike, or..
> jiggling the speaker/mike plug in the connection.  It's hard to
> replicate but I have seen it happen a few times today.
> 
> Any suggestions would be helpful.

The DJ-580 has provisions for remote control thru the external speaker 
jack; Alinco sells a mike that has the up/down buttons and mem/VFO on it.
The speaker plug is a three-conductor type (stereo), and by varying the 
resistance from (I believe) sleeve and ring, you can activate different 
functions on the radio.

You can't simply sweep the resistance and see what it does; each 
resistance has to be preceeded by either an open or short circuit; I 
don't remember which.  (A friend of mine told me about this a week or two 
ago... details are foggy.)

In any case, a partial contact on the ring connector is what's causing 
your radio to QSY; and that's consistent with what you said was 
happening.
From: cchapman@matd.gatech.edu (Charles H. Chapman)
Newsgroups: rec.radio.amateur.misc
Subject: Re: Ham radio used as back up comm to shuttle
Date: 29 Sep 92 17:19:38 GMT
Organization: Georgia Institute of Technology

In article <FwuNRB4w164w@pillock.moron.vware.mn.org> stevej@pillock.moron.vware.mn.org (Steven Jarosh, KA0VYB) writes:
>carndt@zeus.calpoly.edu (Chris Arndt) writes:
>
>> In article <BusKAI.63H.2@cs.cmu.edu> rwb@alexander.VI.RI.CMU.EDU (Robert Berg
>> >
>> >Nasa just announced at a news conference that when the TDRS system
>> >went down for 20 minutes this morning due to a computer failure at
>> >White Sands, a ham in Australia relayed the situation to the shuttle
>> >astronauts.
>> >
>> >Is this the first time SAREX has been used as a communications backup?
>> 
>> Hooo Boy.... and how does this relate to the business use prohibitions
>> and the shuttle amateurs?
>
>No business use here, this is government use.

The government is just another business in the eyes of the FCC.  But
another poster was correct.  This ham was Austrailian so our rules don't
apply to him (they may, however, apply to the operator in the shuttle).


Chuck




Charles H. Chapman  (GTRI/MATD)             (404) 528-7588
Georgia Institute of Technology, Atlanta Georgia, 30332
uucp:     ...!{allegra,amd,hplabs,ut-ngp}!gatech!matd!cchapman
Internet: cchapman@matd.gatech.edu
From: UWELTO@UNC.OIT.UNC.EDU (John Welton)
Newsgroups: rec.radio.amateur.misc
Subject: 10M FM
Date: 29 Sep 1992 21:51:02 -0700
Organization: UCSD Usenet Gateway
NNTP-Posting-Host: ucsd.edu

I just found 10M FM. I wonder if my colleagues could answer a
few questions? It seems the 4 repeater channels are active as
well as 29.600 simplex. I also heard some stations at 29.500 and as
low as 29.100. Have they abandoned the OSCAR subband? It seems that
there is some simplex activitity between 29.3 and 29.5.

I'm also curious if Novice/Tech plus hams can operate FM from
28.3 to 28.5. It seems they have voice privledges here but
I don't see where it specifies mode. Since narrow band FM is
allowed to 28.3 can N/T operate FM here?

Any help on simplex freqs other than 29.600 would be appreciated.

Thanks for your help.

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=-=-=-=-=-=-=-=-=-=
  John Welton RN, MSN          |         PHONE: 919-967-5103
  University of North Carolina |        BITNET: uwelto@unc.bitnet
  Chapel Hill, NC              | INTERNET: uwelto@unc.oit.unc.edu
  Doctoral Student             | PACKET: n4sjw@ //
  School of Nursing            |
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=-=-=-=-=-=-=-=-=-=

Newsgroups: rec.radio.amateur.misc
From: dearnshaw@worldbank.org (Darrell Earnshaw)
Subject: Do ARRL Read Thier Email ?
Organization: The World Bank
Distribution: usa
Date: Fri, 2 Oct 1992 19:09:21 GMT

Recently, I've seen a posting that gives a list of email addresses for
individuals and services located at the League. The question is, do any of
these people regularly read thier mail?

The reason behind this question is two messages that I've sent to the
League; one to the DXCC desk, and one to an individual associated with
the DXCC program. I didn't get a response from either of the messages,
not even an acknowledgement that they had been read.

Common courtesy aside, surely, it would be good PR for the League to at least
issue an acknowledgment to anybody who mails in an inquiry. If the
League does not wish to receive electronic mail, then I feel it should
state its position clearly so we know where we stand.

-- Darrell NR3Y.
From: martin.briscoe@almac.co.uk
Newsgroups: rec.radio.amateur.misc
Subject: the truth about uh
Date: 1 Oct 92 23:11:44 GMT
Distribution: rec
Organization: ALMAC BBS Ltd

GC4properly, but it isn't foolproof. It's good policy to always coat
  4a connection with silicone grease and seal it with heatshrink or
  4self-vulcanizing tape, not electrical tape. If you do this, then
  4crimp connectors are just as waterproof as the fancy Amphenols while
  4being cheaper and easier to install.

Does the silicone grease not affect the self-vulcanising tape.  At 
work our riggers used to wrap connectors in self-amalgamating tape and 
then wrap in "DENSO" tape (this is a proprietary product - sort of 
oil/grease soaked cloth tape).  Every year or so these were replaced, 
often water got inside the DENSO and was trapped there.

Eventually the tape manufacturers were consulted - they were horrified 
at mixing "DENSO" and self-amalgamating tape.  They recommended a 
higher quality self-amalgamating tape designed for low temperature 
use, this has to be warmed before applying to the connector - usually 
body heat is sufficient.  Then just PVC tape is wrapped around to 
protect from UV and birds.  But they stressed the connector must be 
kept clean and grease-free - not always possible on the top of a 
tower!   But any grease on the surface of the connector would reduce 
the effectiveness of the self-amalgamating tape.

We have certainly had less problems with water in connectors since 
they changed over.

               Martin
---
 ~ 1st 1.01a #405 ~ Martin Briscoe GM8AOB @ GB7AOB.#76.GBR.EU Fort William
--
ALMAC BBS Ltd. 0324-665371
Dos based USENET access,  call for details!
From: stevej@pillock.moron.vware.mn.org (Steven Jarosh, KA0VYB)
Newsgroups: rec.radio.amateur.misc
Subject: Re: Batteries on concrete
Date: 4 Oct 92 07:28:30 GMT
Organization: 11th Hour Contest Group (North American Chapter)

MOSIER@iris.uncg.EDU (Steve Mosier) writes:

> Ah, good.  I was afraid this thread had died...
> 
Nah, Vegas is starting to make odds on it.  ;-)


Steve KA0VYB
Newsgroups: rec.radio.amateur.misc
From: dale@sequent.com (Dale Mosby)
Subject: locating TV antenna near ham antennas
Organization: Sequent Computer Systems Inc.
Date: Tue, 29 Sep 92 06:04:50 GMT

I would like information on best placement and feed line for a TV
antenna (VHF/UHF) which will be placed at house next to my ham
antennas.  I have completed work on a 55 ft tower, a tribander goes
up next weekend.  I also have a dipole for 80 meters fed with 450
ohm ladder line.  I can run up to 500 watts.  

The person next door has their TV located at the end of the house
nearest my tower -- perhaps 45 feet.  I am presently using a
Cushcraft R7 vertical at the far end of the yard from my neighbor,
but as I said, the tri-bander (Cushcraft A3S with 40 meter dipole
added) goes on the air next week, weather permitting.

The person next door is evidently using "rabbit ears" for the TV,
but while watching my tower go up mentioned one day that she would
like an outside TV antenna.  I offered to install it for her (after
I assured here that our housing development really did allow
outside antennas. :-)

Unfortunately her antenna must point through my antennas toward
the local TV stations.  My guess is that the best thing is to place
her antenna at the far end of her house to keep it as far away as
possible from my antennas, even though the feed line becomes much
longer.  Is this true?

Next question is whether I run coax from the antenna or use 300 ohm
twinlead.  I feel that the coax will be more resistant to the RF
from my transmitting, but will have higher loss than the twinlead,
especially for the UHF.  I don't have any experience with TV
twinlead -- will that pick up TVI?  What is best for this situation?

Final question -- should I just install a high pass filter from the
start, or wait and see if there are any problems?  The reason for 
installing from the start is so if it causes some drop in signal
that isn't noticed later.  I haven't experimented with any of these
so I don't know how much attenuation they provide to the signal they
should be passing.

I don't think they are experiencing many problems now, but I suspect
that I'll be be getting on the air more once I finish up this antenna
work.  I believe that 80 meters is causing most of the TVI that I
do generate, possibly due to high SWR.

Thanks for any suggestions.  73, Dale.  N7PEX


-- 
  dale@sequent.com         OR      uunet!sequent!dale
  Dale Mosby   503-578-9842  N7PEX  // Sequent Computer Systems, Inc.
  15450 SW Koll Parkway             // Beaverton, Or.  97006-6063
Newsgroups: rec.radio.amateur.misc
From: markm@bigfoot.sps.mot.com (Mark Monninger)
Subject: Re: The Truth about UHF Connectors
Reply-To: rapw20@email.sps.mot.com
Organization: SPS
Distribution: usa
Date: Mon, 28 Sep 1992 14:51:26 GMT

In article <1992Sep25.181203.5041@nntpd.lkg.dec.com>  
koning@koning.enet.dec.com (Paul Koning) writes:
> ...
> (For example, why anyone would want to use twist-on
> connectors of any kind is beyond me, certainly twist-on variants of such
> a basically clean design as the BNC.
> ...
BNC's are also used in some datacom applications, e.g. IBM 3270 type
terminals and controllers use them. The twist-on versions are much easier
to install than the solder-on versions with the little gaskets, spacers,
etc. In one place I worked where we had literally thousands of these
connectors the failure rate dropped dramatically when we went to the
twist-on variety, esp once we found a stripper that prepared the cable
(RG-62) in one motion. Of course, in these applications the impedance
characteristics of the BNC are not as important (within reason) as in
UHF and higher applications.

My $0.02 worth....

73...     Mark    KG7JL
From: jseboldt@pnet51.orb.mn.org (John Seboldt)
Newsgroups: rec.radio.amateur.misc
Subject: Re: An AMTOR question
Date: 6 Oct 92 03:25:07 GMT
Organization: People-Net [pnet51], Minneapolis, MN.

rdewan@casbah.acns.nwu.edu (Rajiv Dewan) writes:
>I worked some AMTOR qsos this last weekend and noticed that there
>are some stations that send out endless streams of selcals in the 
>ARQ mode.  For instance:
>
>VVAE VVAE VVAE VVAE VVAE VVAE VVAE VVAE VVAE VVAE ....
> 
>on 14.078 (approx).  This went on for more than 10 minutes with no
>stations id'ing.  I realize that VVAE is probably not under the jurisdiction
>of FCC.  There were also some States side stations doing this on
>other channels.  However, I did not monitor them for 10 minutes.  
>
>What is going on?  
>
>Rajiv                                 
>aa9ch    
>r-dewan@nwu.edu


Would that be somebody trying to connect with an 
AMTOR BBS?  However, going on for 10 minutes is rather crass.  On 20 meters,
you really have to watch out for those BBS frequencies... their receivers
frequency hop and wait for someone to connect.  Seems, though, that you can
never truly avoid them... the perils of a good mode coming into frequent use!

:                John Seboldt...Minneapolis, MN...                  :
:           As a ham, K0JD...as a human...well, you judge!          :
:UUCP:{crash, tcnet, petrus, quest}!orbit!pnet51!jseboldt __________:
:ARPA:crash!orbit!pnet51!jseboldt@nosc.mil | WINDOWS: a cute  -<:o) :
:INET:jseboldt@pnet51.orb.mn.org           | clown suit for DOS...  :
From: FLEM%athena@leia.polaroid.COM (SKIP FLEM, NT1G, 14X17 NEWTON-1M 617-630-4482)
Newsgroups: rec.radio.amateur.misc
Subject: AMIGA SATELLITE TRACKING PROGRAM
Date: 2 Oct 1992 05:45:00 -0700
Organization: UCSD Usenet Gateway
NNTP-Posting-Host: ucsd.edu

Yes, I have tried SATTRACK. I gave him $20. Randy sent me a 2 page EMAIL
about V2.4 yesterday. I'm sure he's open-minded to any suggestions his
users may have.               
                            73.
Newsgroups: rec.radio.amateur.misc