QRZ! Ham Radio 5/QRZ Ham Radio Callsign Database - Volume 5.iso/digests/infoham/941097.txt

Internet Message Format | 1994-11-13 | 25.6 KB

Date: Wed,  5 Oct 94 20:51:37 PDT
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Subject: Info-Hams Digest V94 #1097
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Info-Hams Digest            Wed,  5 Oct 94       Volume 94 : Issue 1097

Today's Topics:
         "How far" does 1 milliwat (and 1 watt) go? (2 msgs)
                           CABLE TV LEAKAGE
                       Ford Ranger Experiences
                     FT-530 power plug update!@#$
               Interference with a garage door (4 msgs)
                    internet gateway to DXCluster?
                       No code Techs and CW...
                          noise bridge kits?
                    Radio Shack Violation (2 msgs)
                           Reflector group
                 Request Info on Chico, CA Ham Club?
                        USA-EUROPE (???watts)
                          Voltage in France

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Archives of past issues of the Info-Hams Digest are available
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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: 4 Oct 1994 13:59:29 GMT
From: [e-mail] (Michael Barney)
Subject: "How far" does 1 milliwat (and 1 watt) go?

Could anyone enlighten me on "low power contest" for distance
transmissions.

I seem to recall some "Hamfest" communications going 100's or thousands
of miles on less than 1 watt transmit power (and not at microwave
frequencies w/ large Parabolics either).
I'm specifically looking for "how far" on "how little power" under
*relatively ideal conditions* for 1 milliwatt and 1 watt.

Thanks in advance,
Direct reply or post appreciated,

Michael Barney
[e-mail]

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

Date: Wed, 5 Oct 1994 12:59:25 GMT
From: [e-mail] (Paul H. Bock)
Subject: "How far" does 1 milliwat (and 1 watt) go?

[e-mail] writes:

>Michael Barney ([e-mail]) wrote:

>: I seem to recall some "Hamfest" communications going 100's or thousands
>: of miles on less than 1 watt transmit power (and not at microwave
>: frequencies w/ large Parabolics either).
>: I'm specifically looking for "how far" on "how little power" under
>: *relatively ideal conditions* for 1 milliwatt and 1 watt.

>   I've never run more than 4 watts in the 1.5 years that I've had
>my licence, and usually stay down at about 1 watt unless conditions
>are *REALLY* bad.  :-)  My contacts average out to about 400+ miles
>on the 40M band, although my longest-range contact was approximately
>2800 miles with 2 watts.  It's not unusual for dedicated QRP
>enthusiasts to get several thousand miles per watt.

>   So, in short, you can work around the world if you have patience,
>a good antenna, and someone who is willing to dig your peanut-whistle
>signal out of the noise.

     From "200 Meters and Down" by Clinton B. DeSoto, published in 1936,
page 112:

     "But this paled before the performance of Loren G. Windom, 8GZ-8ZG,
of Columbus, Ohio, who on December 30th (1925) communicated with (Henry A.)
Kauper, a5BG (of Dulwich, Adelaide, South Australia) using an input of only
0.567 watts to a UV-199 receiving tube!  With the distance given as 10,100
miles, this figured out to be 17,820 miles per watt.  On January 3, 1926,
contact was established with Major J. G. Swart, oA6N, in Capetown, South
Africa, using 0.54 watts input.  On February 28th, 8GZ worked George H.
Shrimpton, z2XA, in Wellington, New Zealand, a distance of 8500 miles,
with 0.493 watts input, giving 17,250 miles per watt.  A filament poten-
tial of 4 volts was applied to the UV-199 tube during these tests, and
a plate voltage from 70 to 75.  So far as is known, these completely
incredible records - in which much less power was used than is consumed
in the ordinary flashlight bulb - still stand unbroken."

     Two comments:  First, I didn't check the *frequency* used for these
tests, but it was most likely 20 meters (possibly 40 at night).  Of
course, there was no QRM in those days and very little electrical
interference, so receiving conditions must have been stupendous
compared with today.  Second, recall that *wire* antennas were the
norm in those days - no big yagis on towers with rotators!

     BTW, does the name "Windom" ring a bell?  Was 8GZ "the" Windom, or
is that just a coincidence?

(|_|)  Paul H. Bock, Jr. K4MSG     Internet: [e-mail]
 | |)  Principal Systems Engineer  Telephone: [phone] x2062

   "You can have my bug when you can pry my cold, dead fingers from
    around it....." - anonymous radiotelegraph operator

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

Date: Tue, 4 Oct 1994 14:31:26 GMT
From: [e-mail] (Hammett and Edison Inc)
Subject: CABLE TV LEAKAGE

Frank Garofalo ([e-mail]) wrote:
: Does anyone know what the maximum allowable leakage is on UHF from cable
: TV companies. I remembered it expressed in microvolts at some fixed
: distance from the cable.

: Thanks

: --
: Frank
: [e-mail]
: [ your ad here ]
--

_______________________________________________________________________________
Hammett & Edison Inc                                               [e-mail]
San Francisco                                                      707/996-5200

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

Date: 5 Oct 1994 08:23:43 -0500
From: [e-mail] (Joe Pillera)
Subject: Ford Ranger Experiences

Has anyone installed a VHF/UHF amateur transceiver in a Ranger pickup?  I am
considering purchasing a new vehicle soon, and need to know what problems and
issues (if any) are involved with this truck model.

Any tips / experiences would be greatly appreciated.

Please respond to my email address ([e-mail]), as I don't have a
newsreader at work.

TNX and 73,
Joe

----------
Joe Pillera, N8QYO                          Voice: [phone] x3214
Software Engineering, Box 23                  Fax: [phone]
University Microfilms International, Inc.   Email: [e-mail]
300 North Zeeb Road
Ann Arbor, MI  48106-1346

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

Date: 4 Oct 1994 20:10:55 GMT
From: [e-mail] (Paul Jacobson)
Subject: FT-530 power plug update!@#$

                                                              10/04/94
                                                              1pm Pacific

   OK....Well I guess I opened a can of worms with the free power plug
  offer. I have recieved as of 1pm 42 requests for these power cords. If
  you recieved a return message from me and follow the pre-paid postage
  scheme I will honor your requests. Thats all the cords I have and I hope
  you all put them to good use. They are a nice fit for the radio and very
  handy. Please note the wiring requirments for the FT-530. The cables
  connector has a little diagram showing the center pole as the (+) lead.
  This is exactly what the FT-530 requires. I take no responsibility for
  reverse polarity hook ups and I'm not sure if the FT-530 has polarity
  protection!@#
                          Otherwise Enjoy...Paul J. KC6JQT

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

Date: 4 Oct 1994 09:44:01 -0500
From: [e-mail] (David Horak)
Subject: Interference with a garage door

In <[e-mail]> [e-mail] (Derek Clydesdale) writes:

>Any advice would be most welcome,

You've probably already thought of this but I would have the opener plugged
into a switchable outlet and turn it off when you are home using the ham
gear.  Unless that's typically when your SO is driving home :-)

David

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

Date: Tue, 4 Oct 1994 13:43:19 GMT
From: [e-mail] (Derek Clydesdale)
Subject: Interference with a garage door

Hi,

Just wondering if any one else is having problems with valematic automatic
remote control garage doors?  I seem to have real probs on 80m especially on
cw.  The garage door actually starts to go up and down!

20m is also a problem but to a much lesser extent - the courtesy light just
flashes on and off as I go key down.

I run about 100w on cw on all hf (EX warc) bands from an old FT101e into a
g5rv/2 on 20 m and a 60ft length on wire on 80m.

Any advice would be most welcome,

Keith.

gi0ssa@gb7hmi.#63.gbr.eu

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

Date: 4 Oct 94 15:27:45 GMT
From: [e-mail] (Chuck Hawley)
Subject: Interference with a garage door

[e-mail] (Derek Clydesdale) writes:

>Hi,

>Just wondering if any one else is having problems with valematic automatic
>remote control garage doors?  I seem to have real probs on 80m especially on
>cw.  The garage door actually starts to go up and down!

>20m is also a problem but to a much lesser extent - the courtesy light just
>flashes on and off as I go key down.

>I run about 100w on cw on all hf (EX warc) bands from an old FT101e into a
>g5rv/2 on 20 m and a 60ft length on wire on 80m.

>Any advice would be most welcome,

>Keith.

Put a .01uF ceramic (100v or more) across the terminals that go to the wires
that go to the manual push-button by the kitchen door.


Chuck Hawley, KE9UW in Urbana, Illinois
[e-mail]
School of Chemical Sciences, Electronic Services
University of Illinois, Urbana-Champaign

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

Date: 4 Oct 94 09:42:14 -0800
From: [e-mail]
Subject: Interference with a garage door

In article <[e-mail]>, [e-mail] (Derek Clydesdale) writes:
> Just wondering if any one else is having problems with valematic automatic
> remote control garage doors?  I seem to have real probs on 80m especially on
> cw.  The garage door actually starts to go up and down!

Just a couple of weeks ago while out on a walk at night with my 2 meter HT, a
garage door started to go up and down while I was transmitting.  It actually
went about 1/2 way up then came back down.  I could see there was no one in the
garage (and no one came out, thank goodness!) so I'm sure it was my signal.
Ha!  Don't know what brand opener they had, though... ;-)

Ken
--
     ____________________________________________________________________
     | Ken Harrison        |   Moosehead:  Great beer!                  |
     | N6MHG               |                                            |
     | [e-mail] |   ...and a new experience for the moose!   |
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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

Date: Wed, 5 Oct 1994 11:08:40 GMT
From: [e-mail] (Nicholas A Ferro)
Subject: internet gateway to DXCluster?

Looking for a way to get DX spots via the internet, hopefully a connection to
the central NY area.

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

Date: 4 Oct 1994 18:46:41 GMT
From: [e-mail] (Ryan Mcneilly)
Subject: No code Techs and CW...

Being a no code TECH I have a few comments on some of the commentary
going around.  If it wern't for the no code TECH I would not be a ham
since I didn't have the patience or desire to learn it in the beginning.
The NCT (No-Code-Tech) gave me an easy avenue into ham radio.  However,
now I desire to get onto HF.  My solution is not to petition the FCC to
grant NCT access to HF but to learn code.  I think it is necessary to
have hurdles at each increase in privlages to make people move forward,
and to learn more than they previously did.  I plan on following the
rules rather than changing them.  I don't see myself using CW very much
when I first get on HF, but QRP holds my facination.  Since QRP is best in
CW I will probably be using it in the future.

Slaming the NCT as lazey is a dumb approach.  All I needed was a regional
emergency to spark the desire to get the code out of the way and get my
general.  The Central Washington fires this year provided an opportunity
to see what HF could do for us in ARES.  We also found that there weren't
enough generals or above to allow us to keep a 24hour HF station online
at one of the firebases.  This is another reason for my desire to get my
general.  By all means shame the ones that don't want any distinctions
between licenses since this is the Communist form of Hamming :)

I would suggest showing new NCT hams what HF offers in CW, voice, data,
and video rather than shame them.  Shaming me has the opposite effect on
me then what was desired, I get in your face and slam back.  I won't go
away.  I became hooked on hamming when I saw what could be done with
voice on FM repeaters on 2m.

I may not get it till Jan or Feb but I am working on it!  --Ryan

* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
  Ryan McNeilly                    Internet: [e-mail]
    KC7BYE - KCARES
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

"You can't deal from a position of weakness"  --Alfred Thayer Mahan
Moral:  Protect the 2nd Amendment!

My comments and opinions are my own and nobody elses!!!!

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

Date: Tue, 04 Oct 1994 17:24:04 -0800
From: [e-mail] (Phil Keys)
Subject: noise bridge kits?

Try Ten Tec kits [phone].  They have a noise bridge board kit for
about $13.

--
[e-mail] (Phil Keys)      KB7WXQ
Software Consultant - specializing in software safety & quality
Port Hadlock, WA 98339    [phone]
West of Puget Sound..South of British Columbia... 122 44.0W  48 02.0N
_____________________________________________________________

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

Date: 4 Oct 1994 17:10:49 GMT
From: [e-mail] (James Carter)
Subject: Radio Shack Violation

In article [e-mail], [e-mail] (Jerry B Altzman) writes:
/In article <36l0sj$[e-mail]>,
/Bill Sohl  Budd Lake <[e-mail]> wrote:
/>Yes, when you key the HT (as a non-licensed individual) you violate
/>FCC rules...you actually transmit and that transmission extends
/>to wherever propogation may permit at the time.
/
/What if you key up inside of a shielded room?
/
/>Bill Sohl  K2UNK      ([e-mail])
/
///jbaltz
/jerry b. altzman   Entropy just isn't what it used to be      [phone]
/[e-mail]   [e-mail]  KE3ML  (HEPNET) NEVIS::jbaltz


I have been in a Radio Shack before and seen a "hamless" salesman
doing a demo on a 2 meter HT!!!

Jim

o   o ooo  o o  ooo   oo  o   o | James A. Carter   | [e-mail]
o  o  o  o o o  o  o o  o oo  o | MARTIN MARIETTIA  | FCC Lic. KD4PON
o o   o  o o o  o  o o  o o o o | Electronics &     | These views are my own and
o o   o  o oooo ooo  o  o o  oo | Missiles Division | not that of my employer.
o  o  o  o   o  o    o  o o  oo | Orlando, Florida  |
o   o ooo    o  o     oo  o   o |            32855  |             Thanks Jim

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

Date: 4 Oct 1994 19:35:51 GMT
From: [e-mail] (Guy Derose)
Subject: Radio Shack Violation

I a previous post,
Is it any more of a `violation' for someone to pick up an ht on the rs

counter and `kerchunk' a repeater as it is for someone who does NOT have

a driver's license to start the engine of a car in a showroom?





If a tree falls in the forest...:-)

--

I say Yes!  One does not need to have a  _DRIVER's_ license to simply
start a car, yet keying the transmitter is what the license in this case
is for, not simply turning power on to the tranceiver.  Let's make sure
we are making sensible comparisons here.
73,
--
Guy A. DeRose
Physicist, PP-ASEL, KE6JTN, Homebrewer

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

Date: Tue, 4 Oct 1994 17:39:55 GMT
From: [e-mail] (John Grimes)
Subject: Reflector group

Greetings

    I am making this request on the behalf of someone else.
Does anyone know of any contest or dx "reflector groups"?
Where arte they, how to subscribe things like that.

            Thanks
            73 de John kd3wy
            [e-mail]

#include<Standard.Disclaimers>

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

Date: 5 Oct 1994 01:31:58 GMT
From: [e-mail] (Dr. David E. Simcox)
Subject: Request Info on Chico, CA Ham Club?

Please let me know the person to contact regarding meeting times for the
Chico area Ham club.  Thank you.  [phone]

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

Date: 4 Oct 1994 18:40:52 GMT
From: [e-mail] (Andrew Bulucea)
Subject: USA-EUROPE (???watts)

Hello,

What would be the minimum requered power to establish commnication in between
USA (california) and France (Europe) on short-wave ?. I don't have a licence,
just wondering if it is possible to communicate under 20Watts output power...
Or 20Watts is simply an utopia ?.


Just curious and considering on getting a licence,
Andrei

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

Date: 4 Oct 1994 17:22:56 GMT
From: [e-mail] ()
Subject: Voltage in France

In article <2E911803@smtp>, VEKINIS Peter <[e-mail]> wrote:
>
>The voltage in continental Europe is 220V, spread over the two wires. That
>is, it is 110V per phase with respect to ground. You cant really use 110V

WOW!

Where did you get this information from?

According to information available to me, the voltage in Europe is not
yet fully stantartized. The standart gradually adopted is *230V*
with one live and one neutral phase. In fact the safety ground and the
neutral phase are connected in house wiring. Putting 110 V on both phases
will certainly produce some peculiar effects.

73, Moritz DL5UH

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

Date: 4 Oct 1994 15:09:15 GMT
From: [e-mail] (Jerry B Altzman)

References<[e-mail]> <[e-mail]>, <36l0sj$[e-mail]>
Subject: Re: Radio Shack Violation

In article <36l0sj$[e-mail]>,
Bill Sohl  Budd Lake <[e-mail]> wrote:
>Yes, when you key the HT (as a non-licensed individual) you violate
>FCC rules...you actually transmit and that transmission extends
>to wherever propogation may permit at the time.

What if you key up inside of a shielded room?

>Bill Sohl  K2UNK      ([e-mail])

//jbaltz
jerry b. altzman   Entropy just isn't what it used to be      [phone]
[e-mail]   [e-mail]  KE3ML  (HEPNET) NEVIS::jbaltz

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

Date: Tue, 4 Oct 1994 16:16:25 GMT
From: [e-mail] (Jerry Simonowits)

References<[e-mail]> <[e-mail]>, <[e-mail]>
Subject: Re: Radio Shack Violation

In article <[e-mail]>, [e-mail] (Mark Ellis) writes:
|>
|> In article <[e-mail]>, [e-mail]
|> (John Patrick Lestrade) writes:
|>
|> >Is it any more of a `violation' for someone to pick up an ht on the rs
|> >counter and `kerchunk' a repeater as it is for someone who does NOT have
|> >a driver's license to start the engine of a car in a showroom?
|> --------------------------------------------------------------------------
|> Start the car? No. Drive the car? Yes.
|>
|> If you transmit on the thing (the radio, not the car, smarty) without
|> a license, you are in violation. If you kerchunk a repeater, without
|> identifying, license or not, you are also in violation. Although that
|> only applies to license holders, since if you didn't have a license, what's
|> to identify?
|>                   .......Mark
|>
|> ------------------------------------------------------------------------------
|> Mark E. Ellis   N2WZB          Systems Administrator
|>                               PA&TD Software Quality Engineering Branch
|> <[e-mail]> AMSTA-ARA-QAT-A, Bldg 62N, Picatinny Arsenal, NJ
|> ------------------------------------------------------------------------------
|>             http://ramcad.pica.army.mil/people/mellis.html



Or, for a better analogy:

    Starting the Car = Turning on the HT
    Driving the car on a public road = Transmitting on the HT

Jerry
--
Jerry Simonowits
Salomon Inc.
Network Engineering
Systems Engineering
Phone:  [phone]
Email:  [e-mail]
(KB2GCG,AFA1CM)

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

Date: Tue, 4 Oct 1994 17:33:05 GMT
From: [e-mail] (Dave Bushong)

References<[e-mail]> <[e-mail]>, <[e-mail]>
Subject: Kerchunking: legal? (Was: Re: Radio Shack Violation)

[e-mail] (Bruce James Robert Linley) writes:

>In ye olden post [e-mail] (John Patrick Lestrade) spake...
>>Is it any more of a `violation' for someone to pick up an ht on the rs
>>counter and `kerchunk' a repeater as it is for someone who does NOT have
>>a driver's license to start the engine of a car in a showroom?

>It will be a violation if he drives it onto the road. However, if a
>non-ham keys a radio into a dummy load, I do not believe that would
>be a violation.

We know that you need to identify if you transmit, but check out this
wording in Part 97:

     \(sc 97.305 Authorized emission types.

     (b) A station may transmit a test emission on any frequency
authorized to the control operator for brief periods for
experimental purposes, ...

This sounds a lot like kerchunking defined.

     \(sc 97.119 Station identification.
     (a) Each amateur station, except a space station or
telecommand station, must transmit its assigned call sign on its
transmitting channel at the end of each communication, and at
least every 10 minutes during a communication, ...

When you kerchunk, it's not really a communication, since you
are not communicating with anyone, so is an ID required?

Dave, KZ1O

p.s.  I don't kerchunk, because I know my radio is working already.
--
Dave Bushong
OPEN/image Recognition Products

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

Date: 4 Oct 1994 10:25:39 -0400
From: [e-mail] (Nick England)

References<[e-mail]> <[e-mail]>, <36nhj1$[e-mail]>
Subject: Re: 6 meter AM net, was Re: DOES ANYONE USE 2M AM?

The generally recognized AM calling frequency is 50.4 MHz. This has
been the standard since at least the late 1950's.

I worked lots of folks with a Sixer and a wire dipole back in the "good
old days". Six is a great band for antenna work, skip, etc.

Nick KD4CPL (WA4SXT on 50.4 MC in the early 60's)

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

Date: 5 Oct 1994 13:49:54 GMT
From: [e-mail] (Scott Richard Rosenfeld)

References<36rn41$[e-mail]> <O>, <[e-mail]>
Subject: "How far" does 1 milliwatt (and 1 watt) go?


More correct is to wonder how far an E-M wave of a certain power
can travel.

Say you're transmitting 1 watt to a real "isotropic" radiator.
Your "power flux" is then 1 watt/(4*pi*r^2), or the power radiated
divided by the surface area of the sphere at some given distance.

By determining that some solid angle containing power will direct
to your desired location, you can figger out just how much power is
going into the ionoshphere along your desired path.  Chances are
PRETTY GOOD that not all of that 1 watt is going along the desired
path...

Now use a beam.  Integrate over the beamwidth that's going in the
direction of the skip, and you'll find that considerably more power
than with the isotropic radiator is going in the desired direction.

So if you've got a 10 dbi antenna, you need 1/10 the power to
achieve the same results if it's pointed in the right direction.

I've been heard in OK/OM on 3 watts to a dipole with a 6 element
monobander on the other end...

And don't forget about "effective gain" of CW over phone, either.
SSB carries more information, but must spread the power out over
a wide spectrum in order to do so.  CW has a very narrow BW...


--
73,                            _________   _________  The
                            \ /  Long   Original
Scott Rosenfeld  Amateur Radio NF3I  Burtonsville, MD     |   Live    $5.00
  WAC-CW/SSB  WAS  DXCC - 130 QSLed on dipoles __________| Dipoles! Antenna!

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

Date: Tue, 4 Oct 94 13:24:09 GMT
From: [e-mail] (Rajiv Dewan)

References<[e-mail]> <36h4nn$[e-mail]>, <36la5b$[e-mail]>
Subject: Re: RadioMap service expands into OH, PA, MO (and IL, IN, MI,

In article <36la5b$[e-mail]> [e-mail] (Joseph A. Liu) writes:
>Kenneth E. Harker ([e-mail]) wrote:
>: This is a blatant commercial advertisement
>
>IT S NOT YOU SHIT HEAD!

Thank you for your cogent, well-mannered and courteous post. The
next time you post something equally brilliant, could you kindly
make the distribution "universe" instead of just "world"?  I am
sure that other sentient beings would benefit from your postings.

Rajiv Dewan
aa9ch/2


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

End of Info-Hams Digest V94 #1097
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