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1994-11-13
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Date: Wed, 17 Aug 94 15:29:57 PDT
From: Info-Hams Mailing List and Newsgroup <info-hams@ucsd.edu>
Errors-To: Info-Hams-Errors@UCSD.Edu
Reply-To: Info-Hams@UCSD.Edu
Precedence: Bulk
Subject: Info-Hams Digest V94 #927
To: Info-Hams
Info-Hams Digest Wed, 17 Aug 94 Volume 94 : Issue 927
Today's Topics:
Bottle Verticals (was Re: Where did Beverage come from?)
Dielectric Constant of Magnet Wire Insulation???
HDN Releases
Help with Drake SPR-4
Info on UK operation needed.
Kenwood DSP-100 Info
QRP IOTA STATION...repost
Radio & Intl Travel
Recommendations for Hamfest
Request e-mail information
RTTY in V31...
Slow Code idea by Wayne
TNC construction article
VK2WI Weekly News, 31st January, 1994
Yaesu FT-530 vs Icom W21AT - opinions
Send Replies or notes for publication to: <Info-Hams@UCSD.Edu>
Send subscription requests to: <Info-Hams-REQUEST@UCSD.Edu>
Problems you can't solve otherwise to brian@ucsd.edu.
Archives of past issues of the Info-Hams Digest are available
(by FTP only) from UCSD.Edu in directory "mailarchives/info-hams".
We trust that readers are intelligent enough to realize that all text
herein consists of personal comments and does not represent the official
policies or positions of any party. Your mileage may vary. So there.
----------------------------------------------------------------------
Date: 17 Aug 1994 05:19:34 GMT
From: ihnp4.ucsd.edu!agate!howland.reston.ans.net!gatech!udel!news.sprintlink.net!indirect.com!grizzarv@network.ucsd.edu
Subject: Bottle Verticals (was Re: Where did Beverage come from?)
To: info-hams@ucsd.edu
Herb Duncan (m24501@mwunix.mitre.org) wrote:
: I remember reading somewhere that the term originated when the low-bands
: were popular and some amateur radio antenna builders used to placed a glass
: beverage bottle at the base of a tall vertical radiator as an insulator
: from ground.
Glass bottles work quite well as insulators for vertical antennas - until
the wind starts blowing. If the antenna is guyed well enough to stay up
in the wind, the force will telescope the neck of the bottle into the
bottle and the antenna will come down anyway.
Wine bottles work better than beer bottles because the area around the
neck is thicker. I never tried a cushion between the radiator and the
bottle to see if that made a difference.
One other thing - I learned the hard way that a vertical made this way
without a DC path to ground will transmit like gangbusters, but the
corona noise on receive will make your radio essentially useless for
about 10 seconds out of every minute. It sounds like a motor starting up
at about 3/4 speed for 6 seconds (and about S-6) then 4 seconds at full
speed (and S-9+30 dB) then it goes away and the receiver recovers.
de kg7yy
------------------------------
Date: Mon, 15 Aug 1994 20:08:06 GMT
From: portal.com!sdd.hp.com!col.hp.com!srgenprp!alanb@decwrl.dec.com
Subject: Dielectric Constant of Magnet Wire Insulation???
To: info-hams@ucsd.edu
John Klingelhoeffer (johnk@ATK.COM) wrote:
: I am attempting to generate a table of characteristic impedances of parallel
: magnet wires for use in winding transmission line transformers. ...
: It is pretty easy to calculate the characteristic impedance of a parallel
: line transmission line if the separation and dielectric constant are known,
I hope you are going to confirm your calculations with actual measurements.
I suspect the impedance is a strong function of how tightly the wires are
wrapped which would be hard to calculate theoretically. Rather than doing
the calculations, why not just wrap a few, measure them and do a
heuristic curve fit?
AL N1AL
------------------------------
Date: Sat, 13 Aug 1994 22:42:09
From: ihnp4.ucsd.edu!agate!howland.reston.ans.net!cs.utexas.edu!convex!seas.smu.edu!rwsys!ocitor!FredGate@network.ucsd.edu
Subject: HDN Releases
To: info-hams@ucsd.edu
The following files were processed Saturday 13-08-94 at 1:124/7009
HAMANT HAM: Antenna design and calculation programs
-----------------------------------------------------------------------------
MSSOF42E.ZIP 274,499 Meteor-scatter v4.2e - by OH5IY - predicts ope
-----------------------------------------------------------------------------
274,499 bytes in 1 file(s)
HAMDEMO HAM: Amateur Radio Software Demo Programs
-----------------------------------------------------------------------------
SAT04AUG.ZIP 108,099 Expires Nov. 4,1994 - Sat. Positioning - DL3HRT/DL3HZM
-----------------------------------------------------------------------------
108,099 bytes in 1 file(s)
HAMNEWS HAM: Ham Bulletins and Newsletters
-----------------------------------------------------------------------------
ARLD050.ZIP 3,192 08/12/94 ARRL DX Bulletin - DX News
ARLP033.ZIP 2,061 ARRL Propagation Bulletin 08/12/94 - Correction to
ARLP031.Zip
ARLX024.ZIP 1,945 08/12/94 - FAR scholarships awarded
BARTG020.ZIP 4,384 BARTG Bulletin 020 August, 1994
G7OBS.ZIP 1,790 G7OBS Special Event Schedule 8/94
RTDX0812.ZIP 3,355 RTTY DX Bulletin 08/12/94
VK2-0814.ZIP 2,390 VK2 WICEN News 08/14/94
-----------------------------------------------------------------------------
19,117 bytes in 7 file(s)
HAMPACK HAM: Packet Communication programs
-----------------------------------------------------------------------------
FPAC241.ZIP 200,681 FlexPac 2.41 for OS/2 by DB5SH
GP2_101.ZIP 148,741 Grapic Packet for OS/2 - German DOCS
-----------------------------------------------------------------------------
349,422 bytes in 2 file(s)
HAMSAT HAM: Satellite tracking and finding programs
-----------------------------------------------------------------------------
OBS224.ZIP 6,475 AmSat Orbital Elements #224 08/12/94
SPC0815.ZIP 4,115 Space News 08/15/94
-----------------------------------------------------------------------------
10,590 bytes in 2 file(s)
Total of 761,727 in 13 file(s)
* Origin: Ham Distribution Net Coordinator - ab5sm@netcom.com (1:124/7009)
------------------------------
Date: 17 Aug 1994 11:52:01 -0400
From: news1.digex.net!digex.net!not-for-mail@uunet.uu.net
Subject: Help with Drake SPR-4
To: info-hams@ucsd.edu
In article <9.1867.4926.0NEC3C56@dkb.dk>,
Graham Davies <graham.davies@dkb.dk> wrote:
>I have the opportunity to purchase a Drake SPR-4 Shortwave receiver.
>Can anyone give me some info on this model. I'm new to DX'ing. My
>primary interest is Fax, RTTY, Packet and listening to the big
>European SW stations.
>
>The ad' states that it's range is 200khz to 23Mhz am/cw/lsb/usb.
>
>What about 23Mhz to 30Mhz, is this important?
>If so, can it be modified to receive 23-30Mhz?
>How old is this model?
>What would be a fair price to pay for this unit?
>
>Any help would be greatly appreciated.
>
I have no experience with this radio myself but can give you some
second hand information from a mail list discussion:
This is a fairly early HF all solid-state radio. Probably built in
mid to late 1970's.
Drake equipment is generally quite good and all the comments on this
unit were favorable. It was built before synthesizers, so it is all
analog.
The radio tunes in 500kHz segments and needs a crystal for each segment.
You should ask what crystals the unit has. There was also an outboard
accessory available that replaced the crystals and allowed tuning
all segments.
It should tune up to 30MHz if you have the right crystals for it.
I am not sure exactly what kind of filtering it used; ask about
filters that it has. It is important to have the right filter
for the type of signal you want to receive.
Prices mentioned were in the US$200 - US$300 range.
Gary
------------------------------
Date: Wed, 17 Aug 1994 14:30:50 GMT
From: world!eac@uunet.uu.net
Subject: Info on UK operation needed.
To: info-hams@ucsd.edu
In <portnoyCuAxH5.A21@netcom.com> portnoy@netcom.com (Elan Portnoy) writes:
>I'm a US amateur that may spend a year or so in the UK.
>I'm not familiar with the necesities for obtaining permission.
Hello,
Having just gone through the process for the UK I can give you some advice.
There are two types of temporary license, a two month one where no fixed
address is given, i.e. mobile during a holiday (US translation: Vacation Trip)
and a twelve month one where a main station address is supplied, i.e. long
stay. Neither license is renewable and no UK call is assigned.
If you are a US ham then you need a Conditional/General License or above.
A few years ago I would have suggested getting the forms from the ARRL. I
appeciated the service so I joined ARRL for a few years. However this year I
rang up and was told after the person found out that I was not an ARRL member
that providing the forms is "a ARRL Member Service and members get upset if
non-members get it for free". I was allowed to send a SASE to the league
and get the information so they saved 29 cents in postage and lost a year's
worth of dues. It is a wonder members do not complain about non-members
accessing ARRL's info server. So if you are not a ARRL member then expect
some flack and if the ARRL is in a good mood maybe you can send in a SASE.
Otherwise go to the RA or RSGB.
The application has the address and information you need. The main problem
is that you need a 15 pound fee as either a British Cheque, British Postal
Order, or International Money Order. The easiest way is if you have a friend
in the UK to send the application to him and have him send a check with the
remailed application. The next cheapest is to send an international money
order. The problem is that a international money order is issued by paying
the fee at the local post office and sending a application to Saint Louis
where the International Money Order is issued. I have run into numerous
problems with this method as the application and money order do not seem to
arrive at the same time. The most expensive is to go to a bank and get a
International Banker's Draft in Pounds Sterling.
To dial the following numbers in the US: dial the international access code,
usually 011, followed by the Country Code for the UK, 44, then the number
given without the leading zero. So (0272) 258333 would be dialed as
011+44+272+258333.
The Radiocommunications Agency regulates amateur radio in the UK, but the
issuing of licenses is handle by a private contractor. So you send the
application to:
The Radio Licensing Centre
SSL
P.O. Box 884
Bristol BS99 5LF
England
The telephone is (0272) 258333
You could get the application from the RA. Here is the infomation I have:
Amateur Radio Licensing Section
Radiocommunications Agency
Waterloo Bridge House
Waterloo Road
London SE1 8UA
England
The telephone is (071) 215-2217 -or- (071) 215-2316 (answerphone)
RSGB info:
RSGB
Lambda House
Cranborne Road
Potters Bar, Herts EN6 3JE
England
Telephone (0707) 659015 Fax (0707) 645105
73 Eric eac@world.std.com
------------------------------
Date: 16 Aug 1994 19:44:55 GMT
From: news.cerf.net!nntp-server.caltech.edu!netline-fddi.jpl.nasa.gov!elroy.jpl.nasa.gov!swrinde!howland.reston.ans.net!europa.eng.gtefsd.com!sundog.tiac.net!usenet.elf.com!rpi!@@ihnp4.ucsd.edu
Subject: Kenwood DSP-100 Info
To: info-hams@ucsd.edu
I am looking for any information that is available on the Kenwood DSP-100
for the TS-450/690. I purchased one used and would like to compare notes
with someone else who has used one as to whether or not the results I am
seeing/not seeing represent the normal operation of the unit. Post in the
newsgroup so that others can learn as well.
73...Jeff
jeffr@sa-htn.valmet.com
------------------------------
Date: Wed, 17 Aug 94 11:37:34 -0500
From: news.delphi.com!usenet@uunet.uu.net
Subject: QRP IOTA STATION...repost
To: info-hams@ucsd.edu
this message was posted to me by Harry White, N1QVE
He may still be working these freq's, as i tried to post this
last week and it did not work.
Subj: QRP ops from the Canadian Maritimes
I'll be running a HF QRP station from the following IOTA sites from 11 August
through 19 August at various times from 2000Z - 0400Z, and I will try to
be on station precisely at 2000Z, 2200Z, and 0000Z nightly.
NA-014 Deer Island - New Brunswick
NA-010 Cape Breton Island (our destination)
NA-029 Prince Edward Island
Frequencies will be 14.060 CW and 14.260/14.258 SSB. Rig h also be on 40M SSB
Mobile QRP at 7.290 or thereabouts +/- QRM
from Tuesday 9 August thru Sat. 20 August.
73 de N1QVE/VE1 - Harry
------------------------------
Date: 15 Aug 1994 15:52:34 -0700
From: ihnp4.ucsd.edu!news.cerf.net!mvb.saic.com!bethel.connected.com!hebron.connected.com!not-for-mail@network.ucsd.edu
Subject: Radio & Intl Travel
To: info-hams@ucsd.edu
>I have a question for anyone who has traveled internationally with any of
>your `toys' or radio gear. Did you find Airport Security to be a problem
>in the Destination country ???
> In Germany, I did have a bit of a problem with some radio gear..
>not getting into the country via Frankfurt-Hamburg, But leaving Through
>Stuttgart I had a devil of a time going through the passenger screening
>point because I was carrying a radio clipped to my belt. I also had a
>shortwave rig in my briefcase as well as a list of airport and airline
>frequencies. JOHN/PHX
John:
I have traveled with a portable shortwave radio for over 10 years
Internationally without any real problems. Infact I once lugged my ICOM
R71A to Fiji (stupid move...I used it once in 3 weeks). Here is my advice:
Never offer any information or explanation without being asked first.
When asked, make your answers short and simple w/o any tech mumbo jumbo.
Don't try to hide anything or be conspicuous (like on your belt).
Remember, customs officals have all day to do their jobs and sometimes
just like to excersize their authority. I have no experience in taking
ham gear overseas so I can't help you there.
Ken
--
------------------------------
Date: 16 Aug 1994 23:37:08 -0400
From: ihnp4.ucsd.edu!dog.ee.lbl.gov!agate!howland.reston.ans.net!usenet.ins.cwru.edu!eff!news.duke.edu!solaris.cc.vt.edu!swiss.ans.net!newstf01.cr1.aol.com!search01.news.aol.com!@network.
Subject: Recommendations for Hamfest
To: info-hams@ucsd.edu
I have some frequent-flyer freebies that I have to use up by the end of
the year on America West.
Anyone recommend any hamfests to go to? I mostly look for test equipment
and parts.
Looking for one close to a major metro area (don't want to drive four
hours from the airport), and that's a single day affair. Also, it has to
be where the airline flys (which is most places except Dixie).
Thanks in advance for your input,
scott nx7u@aol.com
------------------------------
Date: 17 Aug 94 22:12:51 GMT
From: news-mail-gateway@ucsd.edu
Subject: Request e-mail information
To: info-hams@ucsd.edu
Please send me more information abl
Please send me more information abl
Please send me more information abl
Please send me more information about your news group
------------------------------
Date: 15 Aug 1994 13:13:48 -0600
From: ihnp4.ucsd.edu!ucsnews!newshub.sdsu.edu!nic-nac.CSU.net!usc!howland.reston.ans.net!gatech!newsxfer.itd.umich.edu!jobone!lynx.unm.edu!polaris.unm.edu!not-for-mail@network.ucsd.edu
Subject: RTTY in V31...
To: info-hams@ucsd.edu
AE0Q (V31RY) is going to San Pedro, Belize Dec 28-Jan 9 to operate the
ARRL RTTY Roundup Contest. He's got a TS 450, a laptop and will be with
AA0KL and WN0B. He's looking for another op... If u're interested please
send him a message at AE0Q@N0QCU.#NECO.CO
He is NOT QRV Internet
73 de F5JTL/WX3W
------------------------------
Date: Mon, 15 Aug 1994 20:28:36 GMT
From: portal.com!sdd.hp.com!col.hp.com!srgenprp!alanb@decwrl.dec.com
Subject: Slow Code idea by Wayne
To: info-hams@ucsd.edu
Len Winkler (lenwink@indirect.com) wrote:
: Wayne Green, publisher of 73 Magazine, said on the Ham Radio & More
: show, 8/14/94, that we should have only 1 class of amateur license. It
: should require 5 wpm code knowledge and more theory than is tested
: now.
The problem is that the tougher theory test just won't happen. It is much
more politically palatable to make exams easier. The no-code Technician
is a good example: not only was the code test deleted but the written test
was actually made simpler. (In the old days, the Tech and General written
exams were the same.)
AL N1AL
------------------------------
Date: Tue, 16 Aug 1994 17:54:35 +0000
From: ihnp4.ucsd.edu!agate!howland.reston.ans.net!pipex!demon!llondel.demon.co.uk!dave@network.ucsd.edu
Subject: TNC construction article
To: info-hams@ucsd.edu
In article <22449.BSoranno@vax2.winona.msus.edu> <BSoranno@vax2.winona.msus.edu> writes:
>Does anybody know of a construction article for a "general purpose" TNC?
>
>These are my reguirements:
>1) Standard serial connection. (I have 4 different computers and would like
> to be able to connect to all).
>
>2) An internal processor of some type to minimize the overhead on the
> computer.
>
I know of five TNC2 clone designs available in the UK, or you could ask
TAPR if they still do one themselves. By using one you have the
advantage of being able to run all sorts of different bits of software
depending on your current fancy. Be careful about which modem chip a
particular design uses though, because it appears that the 7910 is being
discontinued.
Dave
--
*****************************************************************************
* G4WRW @ GB7WRW.#41.GBR.EU AX25 * *
* dave@llondel.demon.co.uk Internet * Stop the World! I want to get off! *
* g4wrw@g4wrw.ampr.org Amprnet * *
*****************************************************************************
------------------------------
Date: 17 Aug 94 03:56:05 GMT
From: ihnp4.ucsd.edu!agate!howland.reston.ans.net!EU.net!sunic!trane.uninett.no!ifi.uio.no!wabbit.cc.uow.edu.au!metro!grivel!metz.une.edu.au!ddavidso@network.ucsd.edu
Subject: VK2WI Weekly News, 31st January, 1994
To: info-hams@ucsd.edu
In article <31koq6$rq4@eram.esi.com.au> dave@eram.esi.com.au (Dave Horsfall) writes:
>
> PRESIDENT'S REPORT
[Braodcast notes deleted]
Hey Dave!
Is this really 7 months old? Was the City to Surf run in February?
I think the date in the Subject line is wrong :-)
Dean
--
Dean Davidson ddavidso@metz.une.edu.au
Dept Psychology Phone 61 67 73 2585
University of New England Fax 61 67 72 9816
Armidale NSW 2351 Australia VK2 ZID
------------------------------
Date: 15 Aug 1994 20:12:45 GMT
From: ihnp4.ucsd.edu!news.cerf.net!gopher.sdsc.edu!nic-nac.CSU.net!charnel.ecst.csuchico.edu!yeshua.marcam.com!news.kei.com!ssd.intel.com!chnews!ornews.intel.com!ornews!chennu@network.ucsd.edu
Subject: Yaesu FT-530 vs Icom W21AT - opinions
To: info-hams@ucsd.edu
Hi,
As the subject says I am considering purchasing a dual-bander HT.
I would like to get the opinions of those who have used them.
Any recommendations would hbe welcome too.
HRO has the Yaesu for 449.95 & the Icom for 434.95
Thanks
Srinivas
--
--------------------------------------------------------------------
Srinivas Chennupaty chennu@ichips.intel.com
--------------------------------------------------------------------
------------------------------
Date: 16 Aug 94 02:17:08 -0500
From: ihnp4.ucsd.edu!ucsnews!sol.ctr.columbia.edu!newsxfer.itd.umich.edu!zip.eecs.umich.edu!umn.edu!newsdist.tc.umn.edu!msus1.msus.edu!vax1.mankato.msus.edu!dj1@network.ucsd.edu
To: info-hams@ucsd.edu
References <474@ted.win.net><32l7kv$ood@crl.crl.com>, <490@ted.win.net>, <32p4qg$erc@crl.crl.com>sdis
Subject : Re: 2m/11m crossband QSO: legal?
In article <32p4qg$erc@crl.crl.com>, chdaley@crl.com (Charles A Daley) writes:
> Michael Silva (mjsilva@ted.win.net) wrote:
> :
> : In article <32l7kv$ood@crl.crl.com>, Charles A Daley (chdaley@crl.com) writes:
> : >Michael Silva (mjsilva@ted.win.net) wrote:
> : >:
> : >: In article <linleyCu5EMp.9sG@netcom.com>, Bruce James Robert Linley (linley@netcom.com) writes:
> : >: >I have a rather odd question to ask. When me and my dad go camping, we
> : >: >use CBs to communicate (my dad is not a ham)- one in the truck and a
> : >: >handheld. The problem is that the handheld just can't get a good signal
> : >: >out in certain areas due to it's inherently small antenna. I can hear
> : >: >the truck's CB just fine on the handheld anywhere in the camping area.
> : >: >Would it be possible for me to talk to my dad through a local 2m
> : >: >repeater (he could receive me on a scanner), and my dad to communicate
> : >: >back on the CB? Is either communication considered a "one-way" trans-
> : >: >mission? I've already talked to the 2m repeater owner and he has no
> : >: >objections to this particular use of his repeater. Any Part97/Part95
> : >: >prohibitions to cross-service QSOs? Thanks.
> : >: >
> : >: Sorry, can't be done. Look at Part 97.111, and you'll see that you can
> : >: only communicate with other amateurs (except for emergency
> : >: communications). The repeater owner, by consenting to this use of his
> : >: repeater, is putting his license on the line. Go back and educate him.
> : >
> : >Just for the sake of discussion, how is this vastly different from
> : >calling someone on an autopatch?
> : >
> : First note that the language of 97.111 actually speaks of "amateur
> : stations", not "amateurs". The way it's been explained to me is that
> : this is considered a communication between the amateur station
> : autopatching and the repeater, controlled by the control op, who is
> : allowing third party traffic over "his" station via the autopatch. I've
> : heard that some repeaters turn off their autopatch late at night when
> : all the control ops are in bed to stick more closely to the letter of
> : the law (and to prevent mischief in general).
>
> : I'm sure others will have more to add to my answer.
>
> : Mike, KK6GM
> :
>
> Then again, just for the sake of discussion...
>
> This suggests that if the repeater in question had a link to 11 meters
> (perish the thought...:) ) then all would be okay??? The one-way
> transmissions would be gone and the repeater would complete the
> requirement for an amateur station.
>
> Just thought I'd toss that in for thought.
>
> Chuck Daley
> KD4LXQ
>
>
Hello..... this would NOT BE LEGAL either, as you cannot cross Amateur radio
with another radio service. My grandfather looked into this when he was
setting up 6 gig links and had extra room. He asked a FCC official about using
the 6 Gig links to connect amateur stations that the above response is what he
got.
Sean Stepanek
N0PBA
------------------------------
End of Info-Hams Digest V94 #927
******************************