QRZ! Ham Radio 5/QRZ Ham Radio Callsign Database - Volume 5.iso/digests/infoham/940694.txt

Internet Message Format | 1994-11-13 | 21.9 KB

Date: Wed, 22 Jun 94 19:03:07 PDT
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Subject: Info-Hams Digest V94 #694
To: Info-Hams


Info-Hams Digest            Wed, 22 Jun 94       Volume 94 : Issue  694

Today's Topics:
                         Astron Power Supply
             Connections for Kenwood AT-50 Antenna Tuner?
                     Dummy load as antenna?  Yup!
                          Gettysburg address
                       IARU Contest Software??
                     Lead Acid Storage Batteries
                  Need info on clubs in Dallas area
                           Nicad Batteries
                          PACC DUTCH LOGGER
                 Program of Central States VHF Conf.
                     QRP clubs around the world?
                        SUMMARY: YKITTGUHRW...
                    Surplus store address Florida
          Transmission Line Impedance: Why so many? (4 msgs)
         Transmission Line Zin, hell!  How about transistors?
      Two new mailing lists: arrl-exam-list and arrl-nediv-list

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We trust that readers are intelligent enough to realize that all text
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policies or positions of any party.  Your mileage may vary.  So there.
----------------------------------------------------------------------

Date: 22 Jun 1994 19:27:28 GMT
From: juniper.almaden.ibm.com!ibmboulder!ibmboulder![e-mail]
Subject: Astron Power Supply
To: [e-mail]

Thanks to all who sent me email suggesting possible fixes to cure the
Astron power supply problem.

I called Astron and they have a $15 circuit board which does an automatic
of the power supply when there is a power line glitch. They claim a simple
4 wire installation and the problem will be solved. So, it's on it's way to me
and soon I will know it it really works!

Again, thanks to all who wrote to me
Bob KA5GLX  Houston Tx

------------------------------

Date: 22 Jun 94 16:40:44
From: ihnp4.ucsd.edu!swrinde!gatech!news-feed-1.peachnet.edu!news.duke.edu!concert!ashe.cs.unc.edu!news_server![e-mail]
Subject: Connections for Kenwood AT-50 Antenna Tuner?
To: [e-mail]

Can someone tell me the function of the 2 control signals on the
Kenwood AT-50 automatic antenna tuner?  I see 5 lines labeled:

TS
TT
GND    (ground)
AGND    (analog ground)
14S    (13.8V supply)

I want to know the function and appropriate levels for TS and TT.  I'm
trying to interface my own antenna tuner to my new TS-50 radio.

Thanks
gb wa4fut

------------------------------

Date: 22 Jun 1994 18:40:10 GMT
From: ihnp4.ucsd.edu!usc!howland.reston.ans.net!europa.eng.gtefsd.com!newsxfer.itd.umich.edu!news1.oakland.edu!vela.acs.oakland.edu![e-mail]
Subject: Dummy load as antenna?  Yup!
To: [e-mail]

Scott Richard Rosenfeld ([e-mail]) wrote:
: Ever wonder just how much RF a dummy load radiates?
Nope...

: I was...
 <<< Large text deleted explaing how he worked a neighbor 800 feet
     away while transmitting into a Cantenna. >>>

: We've vowed to try it again at 1 watt or so, and this time I
: want to try it into the Heathkit Cantenna...

Hey Scott,

Try feeding that one watt into your antenna and working some DX!
The idea is 1,000 MILES per watt... not a thousand FEET!  :-)

73!  =paul=  wb8zjl  M-QRP #899

p.s.  I forwarded your message to the QRP newsgroup, I know they'll get
      a charge out of it too!

------------------------------

Date: 22 Jun 1994 18:07:09 GMT
From: ihnp4.ucsd.edu!swrinde!howland.reston.ans.net!europa.eng.gtefsd.com!uhog.mit.edu!news.kei.com!eff!blanket.mitre.org!linus.mitre.org!newsflash.mitre.org!m14494-mac.mitre.org!user@network.
Subject: Gettysburg address
To: [e-mail]

"Four score and seven years ago, our forefathers wrought forth on this
continent a new nation, conceived in liberty and dedicated to the
proposition that all men are created equal..."

Oh, sorry, you meant the *other* Gettysburg Address...

:-)

------------------------------

Date: 22 Jun 1994 19:00:17 GMT
From: ihnp4.ucsd.edu!sdd.hp.com!spool.mu.edu!howland.reston.ans.net!cs.utexas.edu!utnut!torn!news.unb.ca!nbt.nbnet.nb.ca!mockler.nbnet.nb.ca![e-mail]
Subject: IARU Contest Software??
To: [e-mail]

What contesting software is available which supports the IARU contest
in July? I need something fast. Thanks. de Rick (VE9HF).

------------------------------

Date: 22 Jun 1994 18:40:12 GMT
From: ihnp4.ucsd.edu!agate![e-mail]
Subject: Lead Acid Storage Batteries
To: [e-mail]

In article <[e-mail]>,
l.h. bol <[e-mail]> wrote:
>I have aquired some sealed lead acid cells (plastic pack containing 6
>cells rated for 5AH) and am trying to figure out the proper charge
>current for them. I don't want to over-charge them (or under charge)
>
>From what I can recall, the charge rate (I) is relative to the AH rating
>of the cell(s) ??? Do you charge them with a voltage higher than the
>voltage of the cell(s) ?  I seem to have to do this to get them to draw
>any current when I try to charge them.
>
>Can anyone steer me to the proper proceedures or charger design theory.
>
>Yes, I suppose I could buy a cheap automotive type charger but I've got
>all kinds of transformers and diodes etc. kicking around and would like
>to try and use them up.
>
>Thanks in advance for any help you can offer.
>

Lead-acid batteries are best charged constant voltage with a current limit
equal to 0.3C.  The voltage for cycle operation should be between 2.35
and 2.50V (reference 20C) with a -2.3 mV/C temperature coefficient.

For your case, you have 3 cells, so you want a constant voltage supply
between 7.05 and 7.50V current limited to 1.5A peak.

Charging is completed, when the current drops to a small value, say 50
to 100 mA.

You don't want to leave it in that state too long, as that will cause
water to electrolyze excessively.  For float operation, drop the
voltage to 2.25V/cell, or 6.75V.  That should keep the battery from
self-discharging.

If you environment is overtly hot or cold, adjust the voltage accordingly.

Good luck.

                    -Ken

------------------------------

Date: Wed, 22 Jun 1994 18:01:51 GMT
From: ihnp4.ucsd.edu!galaxy.ucr.edu!library.ucla.edu!csulb.edu!csus.edu!netcom.com![e-mail]
Subject: Need info on clubs in Dallas area
To: [e-mail]

I am new to the Dallas/Ft. Worth area and need to join a club or repeater
organization.  I'm specifically looking for autopatch priviledges,
preferably with a metro number so the coverage would be greater.  Anyone
know of such an organization?

Thanks a lot.
Brandon AB5LV

------------------------------

Date: 22 Jun 1994 17:00:38 GMT
From: ihnp4.ucsd.edu!library.ucla.edu!europa.eng.gtefsd.com!uhog.mit.edu!news.kei.com!sol.ctr.columbia.edu!usenet.ucs.indiana.edu!master.cs.rose-hulman.edu![e-mail]
Subject: Nicad Batteries
To: [e-mail]

> The battery case gets you though!. The case for my FT-415 costs
> $20. The off-the-shelf Nicads do come out ahead but not by quite
> as much.


But, you don't throw away the case when the batteries get tired.  Just
charge the batts and use the same case over and over and over and...

73 de Jack, K9CUN

------------------------------

Date: Wed, 22 Jun 1994 14:23:03 GMT
From: ihnp4.ucsd.edu!swrinde!howland.reston.ans.net!EU.net!relay.puug.pt!news.inesc.pt!animal.inescn.pt!ciup2.ncc.up.pt!news.ci.ua.pt![e-mail]
Subject: PACC DUTCH LOGGER
To: [e-mail]

    Does anybody outhere (??? 8-} ) nows if there is any logger for the
PACC Dutch contest , I like this contest and I'm plannig to do a software to
log the QSO in contest .
    PSE IF YOU NOW SOMETHING pleas tell me ...
    or via email or here on this newsgroup...
    TNX a lot for reading...
    best 73's and good DX
--
|--------------------------------------------------------------------------|
| Jose' Miguel M.B.Fonte         | Aveiro University - PORTUGAL - EUROPE   |
| Box 108 - 4801 Guimaraes - PT. | Electronics and Telecomunications Dept. |
| E-mail : [e-mail]     |---|-------------------------------------|
| PACKET : [e-mail] |  Ham:CT1ENQ - Univer.Club: CT6ARU   |
|------------------------------------|-------------------------------------|
Aquele que tem ideias e' forte mas aquele que tem ideais e' invencivel.
                            Jose' Warosky

------------------------------

Date: 22 Jun 94 21:56:22 GMT
From: [e-mail]
Subject: Program of Central States VHF Conf.
To: [e-mail]

The following program of the talks to be given at the Central States
VHF Society Conference was sent me by Dave Meier, N4MW.  Contact him for
registration info if you are interested.

Bob    [e-mail]
    ------------------- forwarded text ------------------
Here is the CSVHF conference Speakers list:

28th Annual Central States VHF Society Conference Schedule of Activities
Memphis, Tennessee, July 28 30,1994

General VHF & EME Session and Slide Presentations, Joel Harrison WB5IGF
The History of EME Francis Shephard, W7HAH
EME on 1296 & 2304 MHz  Peter Blair, G3LTF
VE3ONT Algonquin E.M.E. Expeditions, Peter Shilton VE3VD & Mike Owen W9IP
PROPLOG   Automatic Logging of Propagation,  Bob Carpenter W30TC
The History of VHF, Bill Tynan W3XO
1296 Power Amplifier Notes, Meier N4MW
Where Am I and What Time is it? (GPS Applications),  Tom Clark W3IWI
Practical Construction Hdp on Dish Antennas, Ray Rector WA4NJP
Simple Yagi's   How to Make 'em Cheap!, Kent Britian WASVJB
Amsat Phase 3D,  Tom Clark, W3IWI
VHF Contesting Cuban American Style,  Joe Lynch N6CL
Azimuthal Equidistant Projection Map for Ham, Joseph Mack NA3T
How to Win a Nobel Prize!
     Last Years Chambers Award Winner Zeros in on his Next Goal, Dr. Paul Shuch
N6TX
Open Forum on VHF and Above Activity, Emil Pocock W3EP & Joe Lynch N6CL


73, Dave N4MW

------------------------------

Date: 22 Jun 94 08:09:47 EST
From: ihnp4.ucsd.edu!usc!howland.reston.ans.net!usenet.ins.cwru.edu!ns.mcs.kent.edu!kira.cc.uakron.edu!malgudi.oar.net!mercury.wright.edu!desire.wright.edu![e-mail]
Subject: QRP clubs around the world?
To: [e-mail]

Perusing the little magazine _SPRAT_ published by the
British QRP club, I noted that there is a QRP club in
Spain. The question is: how many QRP clubs are there
"out there," and to whom does one apply for membership.

Nils R. B. Young
WB8IJN

------------------------------

Date: 22 Jun 1994 17:56:59 GMT
From: ihnp4.ucsd.edu!swrinde!gatech!newsxfer.itd.umich.edu!news1.oakland.edu!vela.acs.oakland.edu![e-mail]
Subject: SUMMARY: YKITTGUHRW...
To: [e-mail]

       YOU KNOW IT'S TIME TO GIVE UP HAM RADIO WHEN


You're talking on the phone with a ham buddy, and you end the
conversation and hang up the phone with a 'KD1HZ clear'.

You end a face-to-face conversation with "dit dit".

You spend 2 hours trying to crack a pile up on 20 meters to work a KJ2
station who is portable on Manhatten Island.

When you say things like "QSO" and "73" in casual, face-to-face
conversations.

You're having a Saturday breakfast and you say "call please" so
that you can interrupt a conversation to ask someone to pass the salt.

You go shopping, get to the check-out, write a check, and sign it KE3HO.

You answer your phone, "QRZ?"

Your wife points out that all of your children were born during
sunspot minimums.

You're talking on an EMS telemetry radio with a base hospital for
medication orders and such, and sign out with your callsign

To get your ham buddies attention (who lives across the street), you yell
'CQ! CQ! CQ!' from your driveway

Your wife starts talking to you while you're on the phone, and you tell the
person on the other end you're getting intermod

You've named your brand new German Shepherd puppy 'Radio Flyer' to combine
two of your hobbies (this is true, this is my dog's name)

You're talking to somebody face-to-face in a busy place and you say, "Let's
QSY my office," and they know exactly what you mean!

U find urself typing in cw shorthand to fellow wrkers on internal email
(I hve found myself doing this too many times)

U tell people over the phone "I'm at my work QTH"

When the kids get names related to radio.  I'm Robert F. Casey, that's RF,
or radio frequency, or go further, radio frequency choke.   :-)

Your 5-year-old son picks up your HT and says, "SQB monitoring!"

You'd rather send someone a packet radio message on the 2-meter
band when you know damed well they also have a fully functional
answering machine on their phone line!  My wife loves that one!!

You are in your car, and see somebody you know walking down the street
instead of going beep-beep and waving you pound out CQ on your car
horn and wave.

Oh, no. I forgot about our cat, named "CQ", who would think it was
dinnertime whenever I operated 20m SSB.

Somebody asks you over the telephone "can you hear me okay"? and you
in return give them a signal report.

When you're boss starts babbling about something and you wish you had
a VFO instead of this damn crystal on his frequency so you could tune off.
:-)  [just kidding Mike]

When you start taking posts on rec.radio.amateur.misc seriously.

You wonder why trains always send a "Q" before they pass a RR crossing.

You hear code in your sleep, you hear code in the air conditioner motor,
you hear code from the crickets outside (terrible chirp), you hear code
emanating from the refrigerator motor, you hear code when someone beeps
their horn in traffic

You use "Destinated" in a sentence.

You think it really matters if someone says 73's instead of 73.

You actually use the alarm clock function in your Handie-Talkie so that
you can, "Wake up to your favorite net or repeater."


73!  =paul=  wb8zjl

------------------------------

Date: Wed, 22 Jun 1994 19:41:30 GMT
From: ihnp4.ucsd.edu!swrinde!emory!gatech!howland.reston.ans.net!spool.mu.edu!torn!watserv2.uwaterloo.ca!greenfly.watstar.uwaterloo.ca![e-mail]
Subject: Surplus store address Florida
To: [e-mail]

Would someone know the address / telephone number / FAX number of the
supplus electronics store just west of I-4 and north of Colonial Dr. in
Orlando, Florida?

73, de EDward Spike                   [e-mail]
          *
      *           AMATEUR RADIO:    [e-mail]
   *                          or    VE3TCK@VE3UOW.#SWON.ON.CA.NA
  *- - - -/       IEEE Robot Olympics and MicroMouse Competition Committee
   *                   [e-mail]   or   [e-mail]
      *           E & CE Dept. University of Waterloo, Waterloo, Ontario,
          *       Canada, N2L3G1.   [phone], X-3716, fax:[phone]
==============================================================================

------------------------------

Date: 22 Jun 1994 17:05:41 GMT
From: ihnp4.ucsd.edu!library.ucla.edu!europa.eng.gtefsd.com!news.msfc.nasa.gov!sol.ctr.columbia.edu!usenet.ucs.indiana.edu!master.cs.rose-hulman.edu![e-mail]
Subject: Transmission Line Impedance: Why so many?
To: [e-mail]

> Well, where did 300 ohm come from?


It's approximately the input impedance of as folded dipole.

4 x 72 = 288

73 de Jack, K9CUN

------------------------------

Date: 22 Jun 1994 17:03:11 GMT
From: ihnp4.ucsd.edu!sdd.hp.com!spool.mu.edu!sol.ctr.columbia.edu!usenet.ucs.indiana.edu!master.cs.rose-hulman.edu![e-mail]
Subject: Transmission Line Impedance: Why so many?
To: [e-mail]

> At least for coax, there are technical reasons. 75 ohm *air line*
> (actually 76.708 ohms) has the lowest loss of any impedance coax.

But, doesn't some 50-Ohm line have lower loss athat some 75-Ohm line?

Jack

------------------------------

Date: 22 Jun 1994 18:55:03 GMT
From: ihnp4.ucsd.edu!swrinde!gatech!howland.reston.ans.net!europa.eng.gtefsd.com!uhog.mit.edu!news.kei.com!ssd.intel.com!chnews![e-mail]
Subject: Transmission Line Impedance: Why so many?
To: [e-mail]

Tom Bruhns ([e-mail]) wrote:
: ...you will indeed find that net loss decreases with increased line
: impedance...

I'll sing in that choir... speaking of which, does anybody know the
precise specification for the matched-line loss per 100 ft at 30 MHz
(for instance) for transmitting type 300 ohm and 450 ohm ladder-line?
I've been estimating 0.4 and 0.2 dB respectively.

: Thanks for keeping me honest, Cecil!  ;-)  Cheers, Tom -- K7ITM

Unless I shut up, you're sure to get a chance to reciprocate 'cause
once I thought I was mistaken, but I was mistaken. :-)

73, KG7BK, OOTC, [e-mail]

------------------------------

Date: Wed, 22 Jun 1994 06:20:31 +0000
From: ihnp4.ucsd.edu!swrinde!pipex!demon!llondel.demon.co.uk![e-mail]
Subject: Transmission Line Impedance: Why so many?
To: [e-mail]

In article <2u5c0g$[e-mail]> [e-mail] (S. A. Modena) writes:
>Well, where did 300 ohm come from?...Early TV and nobody really
>understood what was going on, but 300 ohms made the input stage
>design easier and *cheaper* in the fledgling TV industry....that
>needed as much voltage multiplication as it could get for notoriously
>low gain, high noise, parasitically-oscillating front end triodes.
>
300 ohms is the impedance of a folded dipole - the sort of thing used in
old FM tuners where you could make the dipole out of a piece of the
feeder with a bit of thought.

Dave
--

*****************************************************************************
* G4WRW @ GB7WRW.#41.GBR.EU AX25     *                                      *
* [e-mail]  Internet *  Stop the World! I want to get off!  *
* [e-mail]      Amprnet  *                                      *
*****************************************************************************

------------------------------

Date: 22 Jun 1994 17:08:39 GMT
From: ihnp4.ucsd.edu!usc!howland.reston.ans.net!math.ohio-state.edu!sol.ctr.columbia.edu!usenet.ucs.indiana.edu!master.cs.rose-hulman.edu![e-mail]
Subject: Transmission Line Zin, hell!  How about transistors?
To: [e-mail]

If you think there are many different transmission line impedances, ponder
this:

Why are there so many transistor types??


73 de Jack, K9CUN

------------------------------

Date: Wed, 22 Jun 1994 19:33:30 GMT
From: netcomsv!netcom.com![e-mail]
Subject: Two new mailing lists: arrl-exam-list and arrl-nediv-list
To: [e-mail]

        Announcing two new Ham-related mailing lists!

arrl-exam-list:

This list is a bi-monthly listing of amateur radio license examinations
scheduled in the US and in some foreign areas.  While the list is not a
complete list of every scheduled test, it is a list of those tests that we
have been made aware of from ARRL/VEC-coordinated VE teams and teams from
other VECs.

arrl-nediv-list:

This is a bi-monthly information bulletin prepared by the ARRL Division
Director, Bill Burden WB1BRE for immediate distribution to individuals,
clubs, Bulletin Managers, and other interested parties in New England.
While some material will be of national interest, the intent is to report
on issues and activities of interest to Amateur operators in the New England
Division.  Newsletter editors are encourage to reprint any or all of the
bulletin material and Bulletin Managers and NCS are encouraged to distribute
the bulletin material.

These two lists join the other ham radio related lists maintained here at
Netcom:

barc-list:     Information, discussion and anouncements for the Boston Amateur
               Radio Club and hams in Eastern Massachusetts.
w1aw-list:     ARRL bulletins, news, and information
newsline-list: Redistribution of Amateur Radio Newsline
letter-list:   Redistribution of the ARRL Letter
barc-races:    RACES in Massachusetts and emergency management
fox-list:      Fox hunting and Radio Direction Finding
ky1n-list:     VE exams in New England
fieldorg-l:    ARRL field organization discussions
ham-tech:      Technical discussions and questions about Amateur Radio

These lists are automatically maintained by Majordomo.  To sign up or
inquire about these lists, send mail to [e-mail] with the
following in the body (subject is ignored) of the message.  <listname>
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Mail should be sent to [e-mail], not [e-mail].

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73,
Michael L. Ardai N1IST
--
\|/     Michael L. Ardai     N1IST             Teradyne ATB, Boston MA
-*- -------------------------------------------------------------------------
/|\     [e-mail]          [e-mail]

------------------------------

End of Info-Hams Digest V94 #694
******************************