QRZ! Ham Radio 3/QRZ Ham Radio Callsign Database - Volume 3.iso/digests/infoham/940042.txt

Internet Message Format | 1994-06-04 | 27KB

Date: Sun, 16 Jan 94 06:15:11 PST
From: Info-Hams Mailing List and Newsgroup <[e-mail]>
Errors-To: [e-mail]
Reply-To: [e-mail]
Precedence: Bulk
Subject: Info-Hams Digest V94 #42
To: Info-Hams


Info-Hams Digest            Sun, 16 Jan 94       Volume 94 : Issue   42

Today's Topics:
                        cancer from ham radio
                            Dipole Antenna
        Examination Opportunities Scheduled 1/06/94 to 4/25/94
                               FY5FY ?
                             HDN Releases
                      MODS wanted for ALL radio
                  Need manuals for TS430/AT250/PS430
              Protable 2m Antenna for Mountaneering ???
                        Repeater Interference
                         selling gear group ?
                This Week in Amateur Radio Edition #42
                          Toyota & Ham rigs
                    Unix ham radio control program
                        Wanted: Ten Tec Argosy

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: 14 Jan 94 12:12:05 GMT
From: swrinde!cs.utexas.edu!howland.reston.ans.net!noc.near.net!news.delphi.com!BIX.com![e-mail]
Subject: cancer from ham radio
To: [e-mail]

[e-mail] ([e-mail]) writes:


>Tell me, if ham radio causes cancer, why is it that all the ham radio
>club meetings are filled with old people with few health problems other
>than normal ones for their age?

>Travis Wise
>KB8FOU
>18 yrs old
>General class

>--

>Travis A. Wise                      KB8FOU
>1421 Grace Avenue                   Senior, Del Mar High School
>San Jose, CA 95125-5206             [phone]
>[e-mail]


A more likely (than RF) reason for lots of folks in 'electronics'
*Perhaps* showing a higher cancer rate than the general population
is the assorted chemistry that we have all but *bathed* in over
the years... carbon-tet, benzine, you.name.it, we all used it
all of the time to do all maner of things... and *WHAT* ventilation.

.......................................
Alan Ogden, w6spk
Moderator of ham.radio at BIX
[e-mail]

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

Date: Fri, 14 Jan 1994 19:14:40 GMT
From: wri![e-mail]
Subject: Dipole Antenna
To: [e-mail]

Can someone give me a little advice on this:

I want to hang an inverted V dipole cut for 160m. Apex will
be approximately 60' and the ends will be about 20' rfom the
ground.

My question is, can I use twinlead to feed this with and run
it through a balanced antenna matcher and be able to work
160m through 10m with half way decent performance??

My rig is an ICOM IC-740.

Thanks for the help!

Bruce

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

Date: 15 Jan 1994 03:23:29 GMT
From: munnari.oz.au!sgiblab!sdd.hp.com!math.ohio-state.edu!howland.reston.ans.net!gatech!usenet.ufl.edu!mailer.acns.fsu.edu!freenet2.scri.fsu.edu![e-mail]
Subject: Examination Opportunities Scheduled 1/06/94 to 4/25/94
To: [e-mail]

[e-mail] (Tim Wright) writes:
> Amateur Radio <ARRL-VE> testing will be conducted Sunday February 6th,
> 1994 at 13:00 hrs EST at the Morehead/Rowan County D.E.S. Building
> US 32 connector road  Morehead, Ky.
>
> All license classes will be tested.  Please bring 2 forms of ID, one
> with a current photo and any CSCE's.
>
> This testing session is contingent to the weather.
> Talk in freq:  146.910- the K4GFY Repeater
>
> For further information contact:
> Steven "Buck" Duley ARRL-VE  KA4DRZ
> [phone]
>
> For KA4DRZ de Tim Wright KD4OVM
> --
Walk-ins are accepted and welcomed.  This is not the session being
held in Maysville, ky the same day.  For more information call
Steven "Buck" Duley ARRL-VE  KA4DRZ
1(606) 674-6815

Tim KD4OVM

The above posting is in regards to a post received from ARRL HQ.
--

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

Date: 13 Jan 94 11:41:58 GMT
From: ucsnews!newshub.sdsu.edu!usc!howland.reston.ans.net!europa.eng.gtefsd.com!emory!news-feed-2.peachnet.edu!news-feed-1.peachnet.edu!concert!news.duke.edu!duke!wolves!psybbs![e-mail].
Subject: FY5FY ?
To: [e-mail]

Back in CQ WW SSB, I worked someone I wrote in the log as
FY5FY.  Since then, though, I haven't been able to find a
QSL route for him, and I'm starting to think I got the call wrong.

He's not in the '93 CB, and I haven't seen the call in the DX
colums of the various magazines.

As I said, I'm afraid it's just a busted call.
But just in case (I've asked in a bunch of Fido/usenet
areas before): Does anybody have a route for FY5FY?

    Thanks!

        Ken, AC4RD, in Raleigh, NC
        [e-mail]
        or Fidonet 1:3641.1


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

Date: 14 Jan 94 12:37:23 GMT
From: munnari.oz.au!sgiblab!sgigate.sgi.com!olivea!spool.mu.edu!howland.reston.ans.net!gatech!concert!news.duke.edu!duke!wolves!psybbs![e-mail]
Subject: HDN Releases
To: [e-mail]

on <Jan 08 05:28>, Lee Laird to All said:

 LL> Files are available via Anonymous-FTP from ftp.fidonet.org
 LL> IP NET address 140.98.2.1  [...]

 LL> Files may be downloaded via land-line at [phone] or (214)
 LL> 226-1182. 1.2 to 16.8K, 23 hours a day .

Can us bothersome little Fido points f'req from there?

    Hiya, Lee!  73 de AC4RD!

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

Date: 14 Jan 1994 20:49:37 GMT
From: ucsnews!newshub.sdsu.edu!usc!howland.reston.ans.net!noc.near.net!chaos.dac.neu.edu!chaos.dac![e-mail]
Subject: MODS wanted for ALL radio
To: [e-mail]

I want to compile as complete a library of mods for every shortwave radio,
ham radio, and scanner.

Once collected, they will each be placed into their respective locations
according to manufacturer in the ham radio FTP area on world.std.com.

Any pointers to FTP, FSP, mailserver, World Wide Web, and Gopher
sites, as well as whatever else you can offer would be greatly
appreciated!

Thanks much!

Scott


--
===============================================================================
| Scott Ehrlich         Internet: [e-mail]     BITNET: wy1z@NUHUB  |
| Amateur Radio: wy1z          AX.25: [e-mail]                    |
|-----------------------------------------------------------------------------|
| Maintainer of the Boston Amateur Radio Club hamradio FTP area on      |
|   the World - world.std.com  pub/hamradio               |
===============================================================================

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

Date: Sat, 15 Jan 1994 03:15:17 GMT
From: munnari.oz.au!sgiblab!swrinde!cs.utexas.edu!howland.reston.ans.net!usenet.ins.cwru.edu!nigel.msen.com!yale.edu!cs.yale.edu!csusys.ctstateu.edu![e-mail]
Subject: Need manuals for TS430/AT250/PS430
To: [e-mail]

 Looking for the following manuals, or info on where I can
 obtain them:

 Kenwood TS-430   SERVICE MANUAL
 Kenwood AT-250  OPERATING MANUAL and SERVICE MANUAL
 Kenwood PS-430  OPERATING MANUAL and SERVICE MANUAL

 Any help, leads, offers to copy, etc. appreciated. Email
 to [e-mail]      73 N1QVE Harry

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

Date: 16 Jan 94 11:38:29 GMT
From: [e-mail]
Subject: Protable 2m Antenna for Mountaneering ???
To: [e-mail]

Responding to Davi Mercer's ([e-mail]) inquiry about a portable
antenna for backpacking ....

     The February 1992 issue of 73 AMATEUR RADIO TODAY has an
article by John Post, KE7AX, describing a "Copper Cactus" J-pole
VHF/UHF antenna project made from common 1/2" copper plumbing
pipe, that I constructed for both base station and portable use.
The portable version comes apart in sections of about 20" in
length, and weighs approximately 2 lb's, including a folding
wooden base consisting of crossed foot-long sticks penetrated by
a 4" long 3/8" bolt (with nut) that slides into the antenna's
bottom pipe.

     When assembled the J pole is a few inches longer than 5 ft.,
and it does not need an additional ground plane.

     I could have made the antenna's sections even shorter,
perhaps  10", for easier carrying. You might want to forego a
base and drill a hole near the top of the antenna so it can be
hung by a string or plastic tie from a tree limb, etc.

     The article does not describe sectioning the J pole for
portable use, but this type of application is obvious. In the
portable unit I built, each section attaches to its mate by means
of copper pipe couplings. I sweat soldered a coupling onto one
end of each pipe segment, and slit the open end of the coupling
with a hacksaw to make a compressible joint for the adjoining
pipe. I tighten the slotted end of the coupling securely over the
next pipe with a small stainless steel hose clamp.

     If you have ever done any plumbing with copper pipe,
construction is quick and simple. (I suggest that you wash each
pipe solder joint with baking soda to neutralize the acid flux
residue.) As I recall, the portable antenna cost about $10 for
parts, and they were readily available.

     I do not have any gain measurements, but I can attest that
the antenna has worked well for me in the field.

Good luck.

--- Andy ([e-mail])
Andrew Cornwall
Nova Scotia Department of Education
Nova Scotia, Canada

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

Date: 16 Jan 94 05:51:00 GMT
From: [e-mail]
Subject: Repeater Interference
To: [e-mail]

Text item: Text_1


From: tijc02![e-mail]
Subject: Repeater Interference
>local machines UNkeyed, up would pop a blip on that frequency which then
>drifted down the band. Sometimes a leisurely drift, sometimes an eye-popping
>zip.--Ed

I have seen similar symptoms before and it was an oscillation in the
final amplifier. As long as the XTAL-controlled input RF is driving
the amplifier, it functions normally. But when the drive is removed,
it continues in an oscillator mode. Remember, an amplifier with a gain
greater than one will oscillate if the output and input are properly
(improperly?) phased. Coax can act as a phase-shifting stub leading to
oscillation. I once quickly solved a problem like this by switching
power off the final amp during receive.

73, Cecil, [e-mail]  (I do not speak for Intel)

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

Date: 15 Jan 1994 02:39:37 GMT
From: munnari.oz.au!sgiblab!sgigate.sgi.com!olivea!spool.mu.edu!howland.reston.ans.net!europa.eng.gtefsd.com!news.umbc.edu!haven.umd.edu!cville-srv.wam.umd.edu![e-mail]
Subject: selling gear group ?
To: [e-mail]

In article <[e-mail]>,
Michael S. Wells <[e-mail]> wrote:
>Is there an amateur radio newsgroup where for sale equipment is posted ?
>
Yup.  Rec.radio.swap has a lot of ham gear for sale, and some will
occasionally pop up in rec.radio.amateur.equipment, although the latter
is supposed to be a discussion group, not a "for sale" group.


--
73,             _________   _________  The
       \ /  Long   Original
Scott Rosenfeld  Amateur Radio NF3I  Burtonsville, MD  |   Live    $5.00
  WAC-CW/SSB  WAS  DXCC - 123 QSLed on dipoles __________| Dipoles! Antenna!

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

Date: 15 Jan 94 03:09:10 GMT
From: cantaloupe.srv.cs.cmu.edu!das-news.harvard.edu!noc.near.net!news.delphi.com![e-mail]
Subject: This Week in Amateur Radio Edition #42
To: [e-mail]

Here is a summary of news items covered on Edition #42 of "This Week in
Amateur Radio", North America's satellite-delivered audio bulletin service,
for the week ending 21-Jan:

1.   New Jersey Amateurs Meet with Officials to Block State RF Regulation
2.   ARRL Proposes Lifetime Operator Licenses, Station License Term Unchanged
3.   League Refiles Opposition to West Carolina "Instant License" Proposal
4.   Contest Advisory Committee Suggests VHF Contest "Rover" Rule Changes
5.   Rich Moseson, NW2L, in Line for Award for "Ham Radio Horizons" Video
6.   NASA Select TV on New Satellite Transponder, Carries SAREX Coverage
7.   "The RAIN Dial-up" from Chicago
8.   Nominations Opened for DARA "Hamvention" Awards, Due by March 1st
9.   Terry Estes, WB4ASZ, Resigns as Kentucky District Director of SERA, Inc.
10.  "EZSATS" with Dave Mullenix, N9LTD
11.  New Crew Launched, Successfully Docked with MIR Space Platform
12.  "Gateway 160 Meter Net Report" with Vern Jackson, WA0RCR
13.  Special Event Stations and DX Activities with Adrian Sebborn, N1JWO
14.  Weekly Propagation Forecast with George Bowen, N2LQS
15.  Long Island Hams Fight Hempstead, NY Zoning Decision, Form "RADIO"
16.  "DXing the AM and FM Broadcast Bands" - Second in a Series
17.  "Amateur Radio Newsline" from Los Angeles - Edition #857
18.  Superball Balloon Crashes in Utah Mountains, Beacons Still Operating
19.  Washington Amateur Warns of Havoc Created by PK-232 Reverse Forwarding
20.  "Radio Watchers" Newsletter Solicits SWLs/Reporters
21.  Interest in "Morse Telegraph Line" Commemorative Postage Stamp Increases

Funding for the program's transmission costs and production expenses were
provided this week by a grant from the Southern Wisconsin Repeater Group of
Madison, Wisconsin, which carries "This Week in Amateur Radio" on 443.400 MHz
in Madison, 443.675 MHz in North Freedom, and 53.090 MHz in Fort Atkinson.

"This Week in Amateur Radio" is a weekly amateur radio news and information
service, in audio newsmagazine format, which is produced by Community Video
Associates, Inc., a non-profit, charitable, tax-exempt foundation based in
Albany, New York.  The program is carried on the "Omega Radio Network" each
Saturday at 7:30 PM (EST) on the Galaxy III commercial communications
satellite, transponder 17 (9H), 5.8 MHz wideband audio (4.040 GHz), located at
93.5 degrees west longitude in geosynchronous orbit, and can be heard on
various VHF/UHF repeaters throughout the United States and Canada, as well as
on 160 meters.  Contact your local amateur radio club or repeater operator if
"This Week in Amateur Radio" is not being heard in your area.

Production and transmission expenses are underwritten by contributions from
repeater system operators, amateur radio clubs, and individuals.  For further
information, contact Stephan Anderman, WA3RKB, at 518/877-7374, George Bowen,
N2LQS, at 518/283-3665, or Adrian Sebborn, N1JWO, at 413/458-8219.  You may
also reach them via amateur packet @ WA2UMX.#ENY.NY.USA.NA and on various
landline bulletin board services.


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

Date: 14 Jan 1994 08:57:18 -0500
From: swrinde!cs.utexas.edu!utnut!torn!nott!gandalf.ca!gandalf.ca![e-mail]
Subject: Toyota & Ham rigs
To: [e-mail]

Recently there was a thread on toyotas & ham rigs.
Apparently, our news feed doesn't keep articles around
very long, and these messages had expired.  If someone
could re-post the key messages, I'd appreciate it.

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

Date: Fri, 14 Jan 1994 05:00:30 GMT
From: haven.umd.edu!darwin.sura.net!news-feed-1.peachnet.edu!concert!xanth.cs.odu.edu!lll-winken.llnl.gov!taurus.cs.nps.navy.mil![e-mail]
Subject: Unix ham radio control program
To: [e-mail]

In <2h44gk$[e-mail]>, [e-mail] (Chris Moore) writes:
>As an offshoot of my project of writing an X11 logging program, I've decided
>I'd like to tackle writing a generic radio control program for Unix-like
>systems.  My idea is something like this:
>  - A server process could be configured with information about what kind(s)
>    of radio(s) you have, what serial ports to use, etc.
>  - The server would accept connections from other processes that want
>    to interface with the radio.
>  - The server would communicate with the processes using some kind of
>    generic radio control protocol.

In addition to mode and frequency, you should also consider bandwidth.
Not all radios will allow setting all frequencies, modes, and bandwidths,
so you'll need some way to present the user with exactly what options
are available for each radio that is controlled.

P.J. Rovero                        Internet: [e-mail]
NPS Code OC/Rv                     Packet:   kk1d@k6ly
Monterey, CA

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

Date: 14 Jan 1994 14:12:15 -0600
From: ucsnews!newshub.sdsu.edu!usc!cs.utexas.edu![e-mail]
Subject: Wanted: Ten Tec Argosy
To: [e-mail]

Wanted:

Ten Tec Argosy in good condition.

73,72

Jeff, AC4HF
[e-mail]

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

Date: Fri, 14 Jan 94 20:22:22 GMT
From: mnemosyne.cs.du.edu!nyx10![e-mail]
To: [e-mail]

References <2guq97$[e-mail]>, <[e-mail]>, <2h6lmf$[e-mail]>
Subject : Re: Repeater database?

In article <2h6lmf$[e-mail]>,
W. M Wood -- The Signal Group <[e-mail]> wrote:
> Since you say I have obviously been on the opposite of the table , then
>you PROBABLY ARE on the opposite side of the table... a frequency
>coorrdinator.  So I suppose you are going to tell us that you are totally
>non-political in all your decisions .....strictly first come first
>serve , etc.

Yes, I have been a coordinator, and yes, I am a director of a coordinating
body. Yes, I'm going to tell you that I don't make coordination decisions
politically, for that leads to lawsuits. I make coordination decisions
according to the rules set down for everyone to follow. There's one situation
right now that's clobbering a repeater for which I'm the trustee, and I'm
going to have to back out of the discussion when it gets to the board;
further, I'm not going to try to influence the board's decision.

The simplest way to stay out of trouble is to follow the rules. Period. No
politics, no favoritism, no under-the-table deals. The last thing I want is
trouble, so I do all of those.

>I do contour studies professionally as a communications system engineer..so
>yes I DO KNOW what is involved in doing a proper study. I also
>know that a decent one can be done in an hour or so with out
>a computer..just radial lines in a topo map. If you are just
>drawing 85 mile radius circles on a map you aren't really
>coordinating ...you are just OFFICIATING. If a job is worth
>doing it should be done right.

Why not volunteer to do it, then? Or is it simply easier to bitch?

>YOU are already the volunteer. Why aren't you doing ANY kind of study?

The 85-mile rule was found to fit the conditions of Texas very well. There
would not be any significant changes if we were to study repeaters
individually, but a massive proliferation of work.

>Now to the meat of the matter ....the INFORMATION I am referring
>to is LAT/LON/HAAT/ERP for all the commercial stations mentioned.
>This thread is about WHY LAT/LON/HAAT/ERP info is being
>witheld by people/groups like you and yours. I am not asking
>or suggesting that engineering studies be released. JUST
>LAT/LON/HAAT/ERP.

As I've said: we got the information in confidence. The trustees would simply
not give it to us if we were to pass it out to every Tom, Dick, and Harry who
asked. We would be violating our confidence to release it. Do you break
promises and expect to have folks trust you again? This is exactly the issue
here.

Besides, you WERE demanding the engineering studies:

>>>I dare ANY so called coordinating group to prove me wrong by PUBLISHING
>>>there engineering studies for all their "coordinated" repeaters.

>If you are just drawing 85 mi. radius circles THEY DON'T EXIST TO
>ANY DEGREE.....

By your standards, maybe not. The process happens to work, though, even
without your mountain of paperwork.

>Well the hard cold reality is coordinating groups do not want
>to publish this information because they cannot justify the
>ARBITRARY AND POLITICAL manner in which they pass out frequencies
>if the FACTS are publicly available.

Sorry, but "first come, first served" is not arbitrary. I defy you to
demonstrate a single incident where politics influenced the Texas VHF-FM
Society's decisions in coordination. (I can't answer for other organizations.)

Why, exactly, are you ranting? Is there a decision you don't like, and are
looking for ammunition to fight? Are you on the outs with SERA (or whoever
does coordination in North Carolina)? You're screaming far too loudly for
someone who merely wants to see a process improve; there must be some personal
conflict involved. If not, could you try not to YELL EVERY TIME YOU WANT TO
MAKE A POINT?

>A final note : Until the FCC requires CTCSS (or similar) instead
>of carrier squelch on Amateur repeaters, this debate will
>continue forever. Carrier squelch repeaters are archaic and
>the root cause of many repeater interference problems.
>CTCSS is cheaper than DTMF to install/build in radios.
>Alternatively the ARRL and coordinators should make this
>part of the coordination scheme. Since there are no technical
>regulations regarding coordination it could be done.
>Again the problem is POLITICAL . EXISTING coordinated
>repeater owners and users don't want to be burdened
>by CTCSS on their repeaters and mobiles.....unless
>it's to keep out "strangers".

PL is something that the majority of hams could use today; nearly every radio
built in the last 10 years has a PL encoder built in. You're right in that
it's a political problem, but I don't see the problem you think it's a panacea
for. In particular, PL will not allow stacking repeaters closer together; that
would cause interference that most users, never mind trustees, would find
unacceptable.

It has been suggested that PL be a mandatory part of the coordination process
in Texas. The proposal was soundly defeated by the Society's membership. We
can't impose that requirement unilaterally, much as we can't impose other
things unilaterally. It's called "being responsive to the membership". Just in
case you've missed my mentioning it in other messages, membership is open to
any licensed amateur radio operator.
--
Jay Maynard, EMT-P, K5ZC, PP-ASEL | Never ascribe to malice that which can
[e-mail]      | adequately be explained by stupidity.
        "A good flame is fuel to warm the soul." -- Karl Denninger

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

Date: 14 Jan 1994 15:33:23 -0800
From: nntp.crl.com!crl2.crl.com![e-mail]
To: [e-mail]

References <[e-mail]>, <[e-mail]>, <[e-mail]>om
Subject : Re: why 29.94 fps?

[e-mail] wrote:

 <lines deleted>

: My PAYING daytime job is as a design engineer for ABC New York.  WABC TV is
: adjacent to the network facilities, and I believe they get their sync reference
: from the network.  They did the last time I looked, which was some years ago.
: I'll post here if this is untrue.  ABC Network uses a Rubidium standard for
: sync, BUT, the backup, if the Rubidium croaks, is the crystal oscillator in the
: GVG sync generator which is normally locked to the Rubidium.  Unfortunately,
: the casual viewer has no way of knowing if the Rubidium reference is up.

: Most every little two-bit local station now has frame synchronizers these days,
: I think the least expensive ones are only a few thousand dollars now.  If so,
: their colorburst frequency is set by their local reference, and not the
: network.  Also some cable systems use processing which destroys the burst
: integrity.  therefore, don't count on this way of calibrating your frequency
: counter....

That brings up another interesting question:

Are these frame sychronizers located in the signal path such that
they are always inline?  Assuming the answer is yes, this means that
*everything* passes through them.  What type of video codecs do these
devices employ?  Are their effects visible enough so that we vidiots
with our 32" monitors would be able to see their nasty artifact trails?

In other words, what sort of digitization of video is going on in these
frame synch boxes?  As good as D2?  Almost D1?

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

Date: Fri, 14 Jan 94 20:14:17 GMT
From: ucsnews!sol.ctr.columbia.edu!howland.reston.ans.net!usenet.ins.cwru.edu!eff!news.kei.com!yeshua.marcam.com!zip.eecs.umich.edu!destroyer!nntp.cs.ubc.ca!alberta!adec23![e-mail].
To: [e-mail]

References <[e-mail]>, <2gs839$[e-mail]>, <[e-mail]>e
Subject : Re: BRAIN CANCER, LEUKEMIA FROM HAM RADIO ;-/

[e-mail] (D.RODMAN) writes:

>[e-mail] (Brent Irvine) writes...
>>It would depend on how your house is shielded.  If you were to put a
>>layr of chicken wire between your antenna and next floor down, ground
>>it, your house should be safe.
>>
>I do not know where you are getting this type of thinking, but
>inspite of shielding, once you are in the near field of an antenna
>there is not much you can do about exposure.  I tell you what,
>why don't you wrap your house with chicken wire and when you
>are ready, I'll come out and measure the RF???

:-)

Please notice that all stucko houses are covered in chicken wire ...

*when* I had RF in the shack, it could be traced directly to radiation from
the ground wire (inside my chicken wire encased house). I have an RF clean
room in my house, a closet completely covered with chicken wire, and because
it is in the basement, the ground rod is immediately drilled into the cement,
it effectively shields RF from getting in and out! I will be building the bomb
shelter out back next ... I wonder if this is the first sign of the disease of
Ham Radio ...

Ciao, 73 de VE6MGS/Mark -sk-
 "He's everywhere, He's everywhere ... Chicken Maaaaaaaaaannnnnnnn"

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

End of Info-Hams Digest V94 #42
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