QRZ! Ham Radio 5/QRZ Ham Radio Callsign Database - Volume 5.iso/digests/infoham/940702.txt

Internet Message Format | 1994-11-13 | 23.1 KB

Date: Sat, 25 Jun 94 02:03:33 PDT
From: Info-Hams Mailing List and Newsgroup <[e-mail]>
Errors-To: [e-mail]
Reply-To: [e-mail]
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Subject: Info-Hams Digest V94 #702
To: Info-Hams


Info-Hams Digest            Sat, 25 Jun 94       Volume 94 : Issue  702

Today's Topics:
                "Renewal" reusable alkaline batteries
                    'OK' Place to ham (Czech Rep.)
                           ARLD037 DX news
                    Chicago goes LIVE on 7/31/94!
                      Examination Opportunities
                    F.A.R.E. 1994 IS COMING SOON!
                              Field Day
                    IPS Daily Report - 24 June 94
                              June 26th
                 need info on Helical filters design
                      RFI re: words for alphabet
          Transmission Line Impedance: Why so many? (2 msgs)
                      Tunnel Radio Help Request
                                W6BHZ!

Send Replies or notes for publication to: <[e-mail]>
Send subscription requests to: <[e-mail]>
Problems you can't solve otherwise to [e-mail].

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: 24 Jun 94 13:00:09 EDT
From: dog.ee.lbl.gov!agate!darkstar.UCSC.EDU!news.hal.COM!olivea!charnel.ecst.csuchico.edu!yeshua.marcam.com!zip.eecs.umich.edu!newsxfer.itd.umich.edu!gatech!nntp.msstate.edu!@@ihnp4.ucsd.edu
Subject: "Renewal" reusable alkaline batteries
To: [e-mail]

In article <2u9je2$[e-mail]>, [e-mail] (DGoodman) writes:
> In article <1994Jun21.171233.9272@hayes>, [e-mail] (Bill
> Coleman) writes:
>
>>Nicad memory is largely a thing of myth.
>
> I've lived with nicads of all kinds for years, and have found the
> myth to be reality.

While I don't doubt for a moment you've had nicad failures, I seriously doubt
that those failures were due to memory.

There are a host of other abuses you can put to nicads to cause them to fail.
Many of them are much easier to produce than nicad memory. You need dozens of
cycles to cause memory. Modern nicads may need hundreds of equal cycles. Most
hams who claim "memory" had failures after a couple of cycles. Can't happen.

Case in point. I used the same electric shaver for nearly 10 years. Every day,
I'd shave for roughly the same length of time. Even after 10 years of daily
2-3 minute cycles, the same nicads were still good for a weeks worth of
shaves.

Nicad "memory" is extremely rare.

--
Bill Coleman, AA4LR                ! Internet: [e-mail]
Principal Software Engineer        ! AppleLink: D1958
Hayes Microcomputer Products, Inc. ! CIS: 76067,2327
POB 105203 Atlanta, GA 30348 USA   !
Disclaimer: "My employer doesn't pay me to have opinions."
Quote: "The same light shines on vineyards that makes deserts." -Steve Hackett.

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

Date: 24 Jun 1994 16:04:36 -0400
From: ihnp4.ucsd.edu!news.cerf.net!gopher.sdsc.edu!nic-nac.CSU.net!charnel.ecst.csuchico.edu!yeshua.marcam.com!news.kei.com!travelers.mail.cornell.edu!msc.cornell.edu![e-mail]
Subject: 'OK' Place to ham (Czech Rep.)
To: [e-mail]

    I am a ham who just landed a job in Brno in the Czech Republic as an
English teacher, and have some questions about hamming over there.

First of all, is it fairly easy to get a reciprocal license as an American to
operate there?  I asked the ARRL to send me a packet, but they haven't yet.

Will I be allowed to bring my IC-W2A over there?  This HT can receive from
about 100 - 1300 MHz and transmits on the 2 meter and 70cm bands.
Unfortunately, it has been modified to transmit out of band, so it will
also transmit fairly far outside of band.

Do you know of clubs or contact people in the Brno area?  I'm interested in
getting in touch with a local club over there.

Thanks so much.

                Isaac Trefz
                [e-mail]

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

Date: Thu, 23 Jun 1994 17:21:43 EDT
From: elroy.jpl.nasa.gov!swrinde!emory!europa.eng.gtefsd.com!sundog.tiac.net!usenet.elf.com!rpi!psinntp!arrl.org![e-mail]
Subject: ARLD037 DX news
To: [e-mail]

SB DX @ ARL $ARLD037
ARLD037 DX news

ZCZC AE35
QST de W1AW
DX Bulletin 37  ARLD037

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

Date: Fri, 24 Jun 1994 08:23:54
From: elroy.jpl.nasa.gov!swrinde!cs.utexas.edu!convex!news.onramp.net!news.sprintlink.net!indirect.com!s146.phxslip.indirect.com![e-mail]
Subject: Chicago goes LIVE on 7/31/94!
To: [e-mail]

On WKTA, 1330am, in Chicago, Illinois, on July 31, 1994, The Ham
Radio & More show goes from tape delay at 9:00pm to LIVE LIVE LIVE
at 6:00pm Sundays. This will allow real time phone calls from Chicago as
well as WKTA's daytime power which covers most of the city and
suburbs. Call Kent at WKTA and thank him at 708-498-3350.

73,
Len

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

Date: Fri, 24 Jun 94 09:00:00 -0800
From: agate!darkstar.UCSC.EDU!news.hal.COM!olivea!charnel.ecst.csuchico.edu!yeshua.marcam.com!usc!elroy.jpl.nasa.gov!netline-fddi.jpl.nasa.gov!nntp-server.caltech.edu![e-mail]
Subject: Examination Opportunities
To: [e-mail]

JB>led 6/14/94 to 9/19/94
JB>Message-ID: <[e-mail]>
JB>Newsgroups: rec.radio.amateur.misc

JB>Special Note: Amateur Radio licenses usually arrive between 8 and
JB>    10 weeks after the test session.  The FCC considers their
JB>    processing time to be 90 days--from the date they receive the
JB>    application.  The FCC usually receives the application one
JB>    to two weeks after the test session (once the VE Team and the
JB>    coordinating VEC have completed their processing).

I really think you need to change the above paragraph to reflect
the TRUE time frame that currently exists.  I have been waiting 12
weeks now and there are reports of people waiting over 14 weeks who
still do not have their licenses yet!  Also, when I called the ARRL
800 number for new hams, the gentleman who answered quoted me 16
weeks!  So, get with it, quit giving out false information, and
start stating the real waiting period!!

---
 │ OLX 2.2 │ Darryl Linkow [phone]  9 am - 5 pm PDT

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

Date: Fri, 24 Jun 1994 08:20:46
From: elroy.jpl.nasa.gov!swrinde!emory!europa.eng.gtefsd.com!sundog.tiac.net!news.sprintlink.net!indirect.com!s146.phxslip.indirect.com![e-mail]
Subject: F.A.R.E. 1994 IS COMING SOON!
To: [e-mail]

After a very successful F.A.R.E. 1993, with close to 3,000 people
attending, F.A.R.E. 1994 will be bigger and better! F.A.R.E. is the
Family Amateur Radio Event happening on the ARRL's Ham Awareness
Day, Saturday, September 17, 1994. More children and spouses
attended last year's event than all other hamfests in Arizona combined!
Ronald McDonald appears for the kids, as well as face painting, bird
show, and so much more. There's a swap meet starting at sunrise and
the exhibit hall opens at 9:00am. Commercial exhibitors are there, as well
as "hands on" for all displays. Such as:soldering exhibits, cw sending,
packet, pactor, ATV, MARS station, HF station, The Red Cross Team,
The Salvation Army Emergency Radio Team, AMSAT, public service,
and so much more. E'mail me for more info.

73,

Len, KB7LPW         [e-mail]
[e-mail]

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

Date: Fri, 24 Jun 1994 08:13:14
From: elroy.jpl.nasa.gov!swrinde!cs.utexas.edu!convex!news.onramp.net!news.sprintlink.net!indirect.com!s146.phxslip.indirect.com![e-mail]
Subject: Field Day
To: [e-mail]

Good luck to all teams participating in Field Day. Have fun, too!

73,
Len, KB7LPW

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

Date: Fri, 24 Jun 1994 23:09:01 GMT
From: ihnp4.ucsd.edu!dog.ee.lbl.gov!agate!msuinfo!harbinger.cc.monash.edu.au!news.cs.su.oz.au!metro!ipso![e-mail]
Subject: IPS Daily Report - 24 June 94
To: [e-mail]

SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 24/2330Z JUNE 1994 BY IPS RADIO AND SPACE SERVICES
FROM THE REGIONAL WARNING CENTRE (RWC), SYDNEY.
SUMMARY FOR 24 JUNE AND FORECAST UP TO 27 JUNE

IPS Disturbance Warning 17 was issued on 22 June and is current for
interval 24 June to 4 July
-----------------------------------------------------------
1A. SOLAR SUMMARY
Activity: low

Flares: none.

Observed 10.7 cm flux/Equivalent Sunspot Number : 073/009

GOES satellite data for 23 June
       Daily Proton Fluence >1 MeV:   7.3E+05
       Daily Proton Fluence >10 MeV:  3.3E+04
       Daily Electron Fluence >2 MeV: 3.2E+08
       X-ray background: A1.7
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.

1B. SOLAR FORECAST
             25 June            26 June            27 June
Activity     Very low           Very low           Very low
Fadeouts     None expected      None expected      None expected

Forecast 10.7 cm flux/Equivalent Sunspot Number : 075/013

1C. SOLAR COMMENT
The coronal hole that has been causing the recent lengthy
disturbances appears weaker in xray images.
-----------------------------------------------------------

2A. MAGNETIC SUMMARY
Geomagnetic field at Learmonth: quiet

Estimated Indices : A   K           Observed A Index 23 June
    Learmonth       03  2112 1011
    Fredericksburg  05                          03
    Planetary       06                          05

Observed Kp for 23 June: 1110 1332


2B. MAGNETIC FORECAST
DATE      Ap    CONDITIONS
25 Jun    16    Unsettled to active.
26 Jun    20    Active.
27 Jun    20    Active.

2C. MAGNETIC COMMENT
Expected increase to active levels did not occur. However, active
periods are still expected, even though hole appears weaker.

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

3A. GLOBAL HF PROPAGATION SUMMARY
                LATITUDE BAND
DATE        LOW            MIDDLE         HIGH
24 Jun      normal         normal         normal
PCA Event : None.
3B. GLOBAL HF PROPAGATION FORECAST
                LATITUDE BAND
DATE        LOW            MIDDLE         HIGH
25 Jun      normal         fair           poor
26 Jun      normal         fair           poor
27 Jun      normal         fair           poor
3C. GLOBAL HF PROPAGATION COMMENT
Degraded HF comms conditions expected after June 25.

-----------------------------------------------------------
4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
MUFs at Sydney were near predicted monthly values

Observed T index for 24 June:  25

Predicted Monthly T Index for June is 30.

4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
DATE   T-index  MUFs
25 Jun    20    Near predicted monthly values.
26 Jun    20    About 15% below predicted monthly values.
27 Jun    20    Near predicted monthly values.

4C. AUSTRALIAN REGION COMMENT
Strong sporadic E observed at times, spread F observed during local
night.  Due to geomagnetic activity not eventuating now expect mild
depression on 26th. Degraded HF comms expected at times during interval
June 24 - July 4.

--
IPS Regional Warning Centre, Sydney           |IPS Radio and Space Services
email: [e-mail]  fax: [phone]      |PO Box 5606
RWC Duty Forecaster   tel: [phone]      |West Chatswood NSW 2057
Recorded Message      tel: [phone]      |AUSTRALIA

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

Date: Fri, 24 Jun 1994 08:14:46
From: agate!howland.reston.ans.net!cs.utexas.edu!convex!news.onramp.net!news.sprintlink.net!indirect.com!s146.phxslip.indirect.com![e-mail]
Subject: June 26th
To: [e-mail]

After Field Day, June 26, listen to Senator Barry Goldwater on the
Ham Radio & More show on the Talk America Network. It airs at 6:00pm
EST. Available in 23 cities and on satellite on spacenet 3, transponder 9,
6.8 audio. For more info, call 1-602-241-1510.

73,
Len

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

Date: Fri, 24 Jun 1994 19:54:26 GMT
From: ihnp4.ucsd.edu!swrinde!sdd.hp.com!col.hp.com!srgenprp![e-mail]
Subject: need info on Helical filters design
To: [e-mail]

Arthur Chien - 4582 ([e-mail]) wrote:

: I am looking for information on how to design a "Helical filter" . Any books, papers or design equations  available for this kind of filters?

  See Chapter 9 of "Handbook of Filter Synthesis" (the big red book) by
  Anatol Zverev, published by John Wiley.


Glenn Elmore n6gn

amateur IP:    [e-mail]
Internet:    [e-mail]

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

Date: Fri, 24 Jun 1994 19:44:59 GMT
From: ihnp4.ucsd.edu!swrinde!cs.utexas.edu!math.ohio-state.edu!darwin.sura.net!rsg1.er.usgs.gov!dgg.cr.usgs.gov![e-mail]
Subject: RFI re: words for alphabet
To: [e-mail]

In article <2uesqd$[e-mail]> [e-mail] (Nick Parker) writes:
>Does anyone have a listing of the word equivalents for the alphabet
>(alpha=a, bravo=b, etc) they could post or email?

How about ;-)

a    aesop (esop)
b
c    czar
d    djakarta
e    euphoria
f
g    gnaw
h    honour
i
j    juan
k    knowledge
l
m    mnemonic
n
o    oedipus
p    pseudo
q    qatar
r
s    syzygy
t    tzar
u    urn
v
w    wrong
x    xylophone
y    you
z
--
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+ Tom Bodoh - Section Manager, Systems Engineering and Management, Hughes STX +
+ USGS/EROS Data Center, Sioux Falls, SD, USA    57198     [phone]      +
+ Internet; [e-mail] (152.61.192.66)   Amateur radio call; N0YGT +
+    "Welcome back my friends to the show that never ends!" EL&P          +
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

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

Date: Fri, 24 Jun 1994 15:21:58 GMT
From: elroy.jpl.nasa.gov!sdd.hp.com!hp-pcd!hpcvsnz![e-mail]
Subject: Transmission Line Impedance: Why so many?
To: [e-mail]

David Drumheller ([e-mail]) wrote:
: In article <2u8ktb$[e-mail]>, NX7U <[e-mail]> wrote:
: >  [some (more) stuff deleted]
: >
: >1. For maximum power handling capability, Z0=35 ohms (or so) is
: >optimum.  That's why that standard value exists.
: >2. For minimum attenuation per unit length, Z0=75 ohms (or so) is
: >optimum.  That's why that value exists.
: >3. The compromise between these two optimum values in nearly 50 ohms
: >(geometric mean).  Perhaps that's how that value came about...just my
: >guess.
: >

:    Optimum with respect to what?

With respect to a fixed outer conductor diameter.  You do have to be
a little careful about the "max power handling capability."  It
depends on whether the line is voltage limited or temperature-rise
limited.  In a pulsed application, it may be voltage limited; for CW,
it generally will be thermally limited.

And although (3.) may have been originally chosen as a compromise,
it is also very close to the minimum attenuation (for fixed outer
conductor diameter) configuration for lines with solid polyethelene
dielectric, and close for solid Teflon.

All this also assumes the same resistivity for the inner and
outer conductors, which isn't always the case; a higher resistivity in
the outer conductor than in the inner shifts the minimum-attenuation
impedance higher (though not much in practical cases like aluminum-
outer, copper-inner).

73, K7ITM

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

Date: Fri, 24 Jun 1994 15:40:42 GMT
From: elroy.jpl.nasa.gov!sdd.hp.com!hp-pcd!hpcvsnz![e-mail]
Subject: Transmission Line Impedance: Why so many?
To: [e-mail]

NX7U ([e-mail]) wrote:
: 1. For maximum power handling capability, Z0=35 ohms (or so) is
: optimum.  That's why that standard value exists.

Since I've never actually seen any 35 ohm line that I'm aware of, I
started wondering just how "standard" that standard value is.  I
looked in a table of over 300 RG-xx/U cables, and found only one
below 35 ohms (RG-73/U, at 25 ohms), and three around 35 ohms
(RG's 83, 100 and 264).  The next lowest impedance was 48 ohms,
with a big cluster from 48 to 52 ohms (most nominally 50), and
another big cluster from 72 to 78 or so.  But there are some
in the 60's and 90's, and a couple above 100; the highest normal
line was 150 ohms, and some spiral-inner-conductor delay lines were
in the 950-1530 ohm region.

Of course, if you have deep enough pockets, you can get a cable
made for you in any impedance you want probably from below 10 ohms
to perhaps 150 or very slightly above (for straight line, not
spiral conductor).  But the "standard" values do cover the range
pretty well.  On the other hand, if you want one of the rarer ones,
you may have to buy a whole production run of it...

73, K7ITM

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

Date: 24 Jun 1994 23:50:20 GMT
From: ihnp4.ucsd.edu!dog.ee.lbl.gov!agate!library.ucla.edu!europa.eng.gtefsd.com!sundog.tiac.net!news.sprintlink.net!bga.com![e-mail]
Subject: Tunnel Radio Help Request
To: [e-mail]

Redvers Llewellyn Davies ([e-mail]) wrote:
: >In article <2u7o6b$[e-mail]> [e-mail] (William R. Hester) writes:
: >>
: >>I have a work project and I am looking for someone with some real world
: >>experience and/or advice in sending RF through underground tunnels.

I know that spelunkers (cave explorers) use VLF frequencies for
communications from the surface to the cave.  They certainly can't avail
themselves of preinstalled leaky coax, etc.

There is a publication devoted to this topic called "Speleonics".  At the
moment, I don't have access to the address, but will track it down and
post it.  You can also probably track it down at your university's library.

Patrick McGuire  WA8PLR
Austin  TX
[e-mail]

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

Date: 24 Jun 1994 17:42:20 -0700
From: ihnp4.ucsd.edu!news.cerf.net!ccnet.com!ccnet.com![e-mail]
Subject: W6BHZ!
To: [e-mail]

Kirk Smith ([e-mail]) wrote:
: W6BHZ on the Internet


: Listen for us on 146.52 as well, we will be line of sight to most of the
: hills in the bay area as well as Fresno area.  We will be running packet on
: 145.03. Possibly ATV on 443.00 or 439.25, so you can watch for us too!

     : The Cal Poly Amateur Radio Club is now running a mailing list for members,
: alumni and any others that are interested.  There are about 45 people now
: on this list, including 21 alumni!  This interest has started a quest for W6BHZ
: alumni, and about 320 names have been compiled so far!

: Please send responses to this mailing to:
:                     [e-mail]


: W6BHZ on the World Wide Web

: The W6BHZ World Wide Web Home Page is growing in popularity as well.  Since
: May 1st, the W6BHZ home page was the 9th most requested document on the Cal
: Poly WWW server!  A combined total of 2216 requests have been processed for
: all of the W6BHZ documents.  Take a look at the original request for club
: recognition submitted in 1947.  It's been electronically preserved for all to
: see on the WWW.  I'd like to encourage everyone to submit pointers for
: inclusion on the page.  Also, submit our pointer to your local WWW servers
: and anywhere else that may get us exposure.  Let's make W6BHZ known!  I've
: been averaging about 2 new alumni per week that are responding to the WWW
: page. Here's our URL:

:    http://www.calpoly.edu/~dmalone/w6bhz


: FIELD DAY 1994:  (This information can also be found on the WWW)

: We will be heading up to the fire lookout tower on Hi Mountain again this
: year.  Hi Mountain is located in the Los Padres National Forest, near
: San Luis Obispo, California.

: This is almost exactly where we will be:

:   Longitude:  120 Degrees 25 Minutes North
:   Latitude:    35 Degrees 15 Minutes West
:   Altitude:  3180 Feet

: We will be running 2 Alpha in Santa Barbara.

: Everyone is welcome to come and visit.  Talk in will be on 444.525+ (pl127.3)
: or 146.52 (simplex).  If we don't respond, send a DTMF "123" on 146.52 to get
: our attention.  There is a gate we will have to come down and open for you.

: Listen for our call on 40 meters (7.225-7.245) at the following times:

:       (All times Pacific Daylight Time)
:    12:00pm  4:00pm  8:00pm  12:00am  4:00am  8:00am





I sure hope you find crystals for 427.25 and 434.00 so we can see you on ATV

Bob


--
     Bob Wilkins                     work    [e-mail]
 Berkeley, California                home    [e-mail]
     94701-0710                      play    n6fri@n6eeg.#nocal.ca.usa.noam

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

Date: (null)
From: (null)


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

Date: Fri, 24 Jun 1994 11:47:54 GMT
From: ihnp4.ucsd.edu!dog.ee.lbl.gov!agate!howland.reston.ans.net!usenet.ins.cwru.edu!nshore!seastar![e-mail]
To: [e-mail]

References <[e-mail]>, <2u9ji1$[e-mail]>, <[e-mail]>
Reply-To : [e-mail] (John Welch)
Subject : Re: AEA IsoLoop - Opinion

As quoted from <[e-mail]> by [e-mail] (Andy Domonkos):

> In article <2u9ji1$[e-mail]>, DGoodman wrote:
> > In article <[e-mail]>, [e-mail] (Ray
> > Wade) writes:
> >
> > >Dummy loads are RREEAAALLLYYY quiet!
> >
> > But they won't let you work 230 countries with 100 watts.
> >
> > Danny Goodman AE9F/6
>
> Exactly my findings. If the Isoloop isn't working for some reason, double
> check the installation and location. Remember, loop antennas were in use
> at the beginning of the radio era, so the designs and concepts are not
> new, but they are tried and tested. I've got mine in the attic and have been
> working world-wide DX w/better than average results.
>
> Andy N3LCW

  We did double-check - it worked, but very poorly.  Tried it on a
couple of bands with similar results.
  Just for grins, last night my wife (WV9K) *did* use a short antenna
that worked nearly as well - an 8 inch alligator cliplead dangled off
a 50 ohm resistor.  With 70 watts peak SSB, she got S-4 receive
reports from the 20M Maritime Mobile net control, and 3x3 reports from
Ohio and Alabama on the 40M 3905 Century Club net (we left early due
to a t-storm).
   We've had *much better* luck with short wire dipoles thumbtacked to
the ceiling, and they're *much* cheaper than the loops (and a lot more
easily packed for a trip).  Perhaps the loop advocates are unwilling
to admit they might have been somewhat mislead by the advertising
claim ?

--
While (its_not_working())                            John Welch, N9JZW
  mess_with_it();                                    [e-mail]

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

End of Info-Hams Digest V94 #702
******************************