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1994-11-13
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Date: Thu, 21 Jul 94 01:09:06 PDT
From: Info-Hams Mailing List and Newsgroup <info-hams@ucsd.edu>
Errors-To: Info-Hams-Errors@UCSD.Edu
Reply-To: Info-Hams@UCSD.Edu
Precedence: Bulk
Subject: Info-Hams Digest V94 #820
To: Info-Hams
Info-Hams Digest Thu, 21 Jul 94 Volume 94 : Issue 820
Today's Topics:
*finally it arrived* (but why no plus?) (3 msgs)
Bicycle generates noise on 20 meters
CW on CB
feed-forward amplifiers
Jupiter decametric emission info
Jupiter emission/impact predictions
NASA 25th Moon Landing Special Station
No code tech./CB/not shedding a tear
QST on News Stands? (2 msgs)
Scanner Cellular Mod
STOP THE INSANITY! (was: FCC Delays)
Tel.nbr. SSB-electronics Germany ??
Send Replies or notes for publication to: <Info-Hams@UCSD.Edu>
Send subscription requests to: <Info-Hams-REQUEST@UCSD.Edu>
Problems you can't solve otherwise to brian@ucsd.edu.
Archives of past issues of the Info-Hams Digest are available
(by FTP only) from UCSD.Edu in directory "mailarchives/info-hams".
We trust that readers are intelligent enough to realize that all text
herein consists of personal comments and does not represent the official
policies or positions of any party. Your mileage may vary. So there.
----------------------------------------------------------------------
Date: 20 Jul 94 11:10:05 -0500
From: ihnp4.ucsd.edu!usc!elroy.jpl.nasa.gov!lll-winken.llnl.gov!noc.near.net!news.tufts.edu!news.hnrc.tufts.edu!jerry@network.ucsd.edu
Subject: *finally it arrived* (but why no plus?)
To: info-hams@ucsd.edu
In article <30j9qr$ttu@watnews1.watson.ibm.com>, vinod@watson.ibm.com (Vinod Narayanan) writes:
> |> the idea..) I thought I saw someone saying that the new licenses are
> |> already coming out with "Tech Plus", maybe I was wrong. But if it hasn't
> |> already started, it's soon to come...
>
> I know one person who has gotten a licence which says "Tech Plus", about
> a month back. I have asked the VEC to send in my 610 for the 5wpm test,
> (since I just got the no-code tech at the first test), I will know
> in about 14 weeks whether they are going to issue me a new "tech plus"
> licence.
>
The new QST said something about receiving a license with the w/HF
designation if 1B was passed after June 6, or threabouts. On June 13,
the ARRL sent me a post card asking for a copy of my Technician class license
so that they could attach it to a May 21 610 that would have made me
Technician w/HF.
------------------------------
Date: Wed, 20 Jul 1994 07:29:16 -0500
From: ihnp4.ucsd.edu!swrinde!howland.reston.ans.net!europa.eng.gtefsd.com!ceylon!news2.near.net!das-news.harvard.edu!spdcc!merk!harvee.billerica.ma.us!esj@network.ucsd.edu
Subject: *finally it arrived* (but why no plus?)
To: info-hams@ucsd.edu
In <30bqcb$lot@nntp.club.cc.cmu.edu>, Jeffrey Hutzelman writes:
>Nope. Your ticket won't look any different. What you need to do is
>hang on to your copy of the CSCE (Certificate of Successful Completion of
>Examination) which shows that you completed the code test. That
>form is what proves the difference between a no-code tech license
>and your tech+.
since I don't have a csce, I guess my 1980 novice ticket will have to
suffice... In reality I'm a tech+g. I took my tech exam at the second
to last fcc given exam session in boston (tech ticket dated 1981).
--- eric
--
HOME: esj@harvee.billerica.ma.us HAM ka1eec
WORK: esj@temerity.polaroid.com 617.386.4687
source of the public's fear of the unknown since 1956
------------------------------
Date: 20 Jul 1994 16:39:31 GMT
From: ihnp4.ucsd.edu!swrinde!howland.reston.ans.net!europa.eng.gtefsd.com!ceylon!news2.near.net!info-server.bbn.com!news!levin@network.ucsd.edu
Subject: *finally it arrived* (but why no plus?)
To: info-hams@ucsd.edu
In article <H.eg.RgsLBmftjEA@harvee.billerica.ma.us> esj@harvee.billerica.ma.us (Eric S Johansson) writes:
In <30bqcb$lot@nntp.club.cc.cmu.edu>, Jeffrey Hutzelman writes:
>Nope. Your ticket won't look any different. What you need to do is
since I don't have a csce, I guess my 1980 novice ticket will have to
suffice... In reality I'm a tech+g. I took my tech exam at the second
to last fcc given exam session in boston (tech ticket dated 1981).
In your case, Eric, it may merely be that your ticket got through the system
before they started adding "plus" to tech plus licenses. Or maybe
they're not going back to check every renewal that comes in to see
whether it should be changed from tech to tech plus.
I wouldn't worry. In fact, you could upgrade and forget the whole
problem :-)
/JBL
=
Nets: levin@bbn.com |
pots: (617)873-3463 | "I gotta go."
KD1ON (@KB4N.NH.USA) | -- I. Shoales
------------------------------
Date: Wed, 20 Jul 1994 13:22:49 GMT
From: ihnp4.ucsd.edu!swrinde!emory!cherry.atlanta.com!nanovx!kd4dts!jcw@network.ucsd.edu
Subject: Bicycle generates noise on 20 meters
To: info-hams@ucsd.edu
lfloyd@netcom.com (Larry Floyd) writes:
Seems like you could scratch the paint off a small area of the front and rear
forks, attach a small berillium copper wiper to the clean area, and form it
so that it would rub against the rim. It might be possible to do this close
to the hub, instead. As for grounding, you could do like to older cars
used to, and attach a ground strap that drags. If I were trying this, the
first place I'd look to attach it would be near the pedal hub. Of course,
you'll want to make sure it can't flip up into the gear chain and land you
on your arse.
>Wayne_Estes (Wayne_Estes@csg.mot.com) wrote:
><snip>
>: 1. The tires create static charges while rolling on the pavement.
>: 2. The hubs create static charges as metal parts rub against each other.
><snip>
>: Does anyone out there in internet-land have any ideas as to the cause and
>: possible cures to this problem?
--
--------------------------------------------------------------------------------
John C. Wren (kd4dts) | "The UNIX operating system has a command, NICE,
jcw@kd4dts.atl.ga.us | which allows a user to voluntarily reduce the
..!emory!wa4mei!kd4dts!jcw | priority of his process, in order to be nice to
------------------------------
Date: 20 Jul 94 11:50:40 -0500
From: europa.eng.gtefsd.com!ulowell!woods.uml.edu!martinja@uunet.uu.net
Subject: CW on CB
To: info-hams@ucsd.edu
In article <9407201503.AA06088@metro.mccneb.edu.mccneb.edu>, pmarsh@metro.
mccneb.EDU (Paul Marsh) writes:
> I haven't seen any followup on teaching CW on CB, so --
>
> FCC 95.627(c) seems pretty clear -- Non-voice emission is limited to
> selective calling or tone-operated squelch tones to establish or continue
> voice communications.
You won't catch me teaching cw on CB. [Head bent over in shame]..however,
where do you think I learned it? Yeah, it's the truth. From 1969 to 1972 I
was doing mcw on CB. If anyone ever copied, "DO YOU COPY THIS STATION?" on cw
on the CB band (Ch 22A) during this time, that was me.
I just want to say thanks to Chris in Ontario who helped and hopefully learned
at the same time. We had some pretty good cw QSOs then. Wonder if Chris is a
ham now too?
I didn't condone any type of illegal activity then nor do I condone it now. I
did it then and I don't do it now....heck I have all amateur privileges now
anyway and have been a ham since 1981. Time flies when you're having fun.
For a bullfrog, time's fun when you're having flies.
To those who will jump on me for being honest and stating the above...stick it
in your ear. Nothing I can do about it now. If your time machine works you
can lend it to all of us and we will gladly fix our errs of the past. Like my
ex-wife and the time Ronny and I....uh....oh....sorry.
Just having fun cruizin' the info highway.....
73 de WK1V
-jim-
------------------------------
Date: 20 JUL 94 11:43:19
From: pa.dec.com!nntpd.lkg.dec.com!mrnews.mro.dec.com!est.enet.dec.com!randolph@decwrl.dec.com
Subject: feed-forward amplifiers
To: info-hams@ucsd.edu
The July "RF Design" has an article on feed forward amplifiers. The basic idea
is to tap off some of the input to the amp, delay it 180 degrees in phase, and
combine this with some of the output of the amp. This gives you a signal
composed of only the error added by the amp. Now you amplify this, phase it
180 degrees again, and combine it back into the power amp's output, to cancel
out the error and get a nice, clean, IMD-free output.
Comments? Is this technique used in amateur equipment at all?
-Tom R. randolph@est.enet.dec.com
------------------------------
Date: Wed, 20 Jul 94 16:20:08 GMT
From: ihnp4.ucsd.edu!swrinde!howland.reston.ans.net!europa.eng.gtefsd.com!newsxfer.itd.umich.edu!jobone!lynx.unm.edu!Mr-Hyde.aoc.nrao.edu!pharden@network.ucsd.edu
Subject: Jupiter decametric emission info
To: info-hams@ucsd.edu
Here is some basic information regarding Jovian decametric emissions to
help answer some of the questions thus far raised on the net.
1. Jupiter has a strong magnetic field consisting of three lobes labeled
A,B and C (A the strongest). Decametric emissions are produced by
electrons escaping this magnetic field, which depart in a very narrow
beam. This resulting decametric emission is heard on the earth when
these magnetic fields "sweep" the earth and are referred to as an A,B
or C storm. Thus, one must use the prediction tables available from
several sources when enhanced activity is most probable. Also, moon
Io exerts a strong influence on these emissions when the geometry of
Jupiter-Earth-Io are in certain configurations. These are called
Io-A, Io-B and Io-C events. Again, the times of enhanced activity
caused by these Io events are found on the prediction charts.
2. The dominant emission from Jupiter are L-bursts, which usually arrive
in bunches over several minutes called storms. Right now, Jupiter is
very quiet and it is not unusual for several rotations to go by with
NO activity. And when activity does occur, it is a short duration
event (a few minutes of bursts out of hours!).
3. Very few of the bursts, pops and cracks heard above the MUF in the
evening can be attributed to Jupiter. From #2 above, it is stressed
that Jovian decametric activity right now is very infrequent.
4. It is impossible to isolate the origin of a signal with a single
antenna. The best way to identify Jupiter is with listening practice,
after many evenings, to learn what the L-bursts sound like. The
professional arrays monitoring Jupiter are huge dipole arrays with
very narrow beam widths (2-3 degrees) and very high gains. Also, an
array of antennas can measure the phase delay of an incoming signal as
received by each antenna. If the signal comes from space, it will
strike each antenna about the same time; if it comes from earth, the
signal will slide across the antennas one-at-a-time. Thus, only
coherent signals (those arrive about the same time) are processed as
coming from space. With a single antenna, even a directional high-gain
yagi, it is still impossible to determine the source of a received
signal ... especially a burst of noise.
5. The Japanese reported a 10-fold increase in radio emissions from
Jupiter. This statement was taken a bit out of context and needs some
clarification. The Japanese detected strong L-bursts for about 10
minutes of duration around 0700 UTC, about 30 minutes prior to the
G fragment impact on 18JUL. It is tentatively believed these
decametric emissions were triggered by the fragment as it penetrated
Jupiter's magnetic field just prior to impact. This reported event
lasted only about 10 minutes on the G-impact only. (I think the
Japanese array operates around 22mHz). If verified, this could be
the only true decametric effect from the impacts thus far.
6. Don't let me discourage you. I have been conducting a Jupiter watch
on 18 and 22mHz nightly from my back yard since June 20. I have heard
some L-bursts on 18mHz with a vertical. On 22mHz, I am using a home-
brew DDRR loop about 4.5ft in dia. It is not impossible to hear
Jupiter on a 15M ham station.
7. Use these guidelines for listening to Jupiter:
a. Listen to upper end of 15M (21.4 to 22 if you can) in the evening.
Best is when the MUF falls below 21mHz (15M is dead). This will
at least shut down a bunch of earth generated signals and noise.
b. L-bursts are generated with highest probability during an A-storm
or Io-A and Io-B events. See prediction charts.
c. There may be a possibility of L-bursts 30-45 min. before a comet
fragment impact (as it passes through the magnetic field). Again,
use the impact prediction charts.
d. If possible, disable the AGC so the bursts are not compressed.
e. With a directional 15M beam, point it south or southwest. Jupiter
is very bright to the south-southwest early evening. To the far
west early evening is Venus. Don't fall for her!
Good luck and hope this information helps.
73, Paul, NA5N
----NATIONAL RADIO ASTRONOMY OBSERVATORY ----- Socorro, New Mexico -----
| VLA - Very Large Array Observatory - Worlds largest radio telescope |
|VLBA - Very Long Baseline Array - even larger |
--------(pharden@zia.aoc.nrao.edu) --- (73 de NA5N) --------------------
------------------------------
Date: Wed, 20 Jul 94 16:23:45 GMT
From: ihnp4.ucsd.edu!swrinde!howland.reston.ans.net!europa.eng.gtefsd.com!newsxfer.itd.umich.edu!jobone!lynx.unm.edu!Mr-Hyde.aoc.nrao.edu!pharden@network.ucsd.edu
Subject: Jupiter emission/impact predictions
To: info-hams@ucsd.edu
PREDICTIONS OF JUPITER/SL-9 IMPACTS FAVORABLE FOR DECAMETRIC MONITORING
(Fragments A to Q removed in this revision due to already occuring or
not visable in North America).
-----------------------------------------------------------------------
FRAGMENT 7b=Q2 IMPACT 20JUL 1932 UTC = 20JUL 1532 EDT
7a=Q1 IMPACT 20JUL 1959 UTC = 20JUL 1559 EDT
Very slim chance of observing ... sun is high in the sky and Jupiter is
just rising on east coast. Jupiter is in a C-storm alignment, and thus
most likely very quiet. Solar interference will render most stations
unsuitable for detecting Jovian emissions.
------------------------------------------------------------------------
FRAGMENT 6=R IMPACT 21JUL 0524 UTC = 0124 EDT = 20JUL 2324 MDT
Impact Long.= 036 deg CML=298 ("C" region)
Very good window for observing; impact during a relatively quiet C-storm
alignment and late evening across the country.
------------------------------------------------------------------------
FRAGMENT 2=V IMPACT 22JUL 0415 UTC = 0015 EDT = 21JUL 2215 MDT
Impact Long.=145 deg CML=044 (quiet region)
Another good window for observing; impact during a Jovian quiet time
(all magnetic lobes away from the earth) and during evening across the
country. Extreme west coast will be in twilight.
------------------------------------------------------------------------
FRAGMENT 1=W IMPACT 22JUL 0756 UTC = 0356 EDT = 0156 MDT
Impact Long.=278 deg CML=180 ("B" region)
Last chance for you night owls! Jupiter will have set in eastern states,
but good in the west. Jupiter begins B-storm, so some L-bursts associated
with that alignment may occur. (Historically quiet past few weeks)
-------------------------------------------------------------------------
NOTES:
1. Impact times from JPL/Caltech/Cornell calculations
2. Edifications by Dr. Pat Palmer (U. of Ill. Urbana) and NRAO staff.
3. Compiled by Paul Harden. For information only and does not constitute
any guaranteed detection of Jovian emissions by amateur observing
stations. May be freely distributed with credit.
4. Impact times rounded to nearest minute. CML=system III longitude
facing the earth; Impact Long. in System III coordinates.
5. Not all bursts heard are Jovian; it is impossible to determine the
origin of bursts with a single antenna configuration.
73 and good luck ...
Paul Harden, NA5N
------------------------------
Date: 20 Jul 1994 14:50:07 GMT
From: ihnp4.ucsd.edu!agate!howland.reston.ans.net!swrinde!news.uh.edu!uuneo.neosoft.com!blkbox!guillory@network.ucsd.edu
Subject: NASA 25th Moon Landing Special Station
To: info-hams@ucsd.edu
Can anyone please send the me freqs for the JSC station participating in
the 25th Anniv. Moon Landing? I had them but mistakenly deleted them.
Today is the last day right?
-----------------------------------------------------------------------
George Guillory, KC5HBT
guillory@blkbox.com
"To stand in silence when they should be protesting
makes cowards of men." Abraham Lincoln
-----------------------------------------------------------------------
------------------------------
Date: 20 Jul 1994 13:01:18 GMT
From: lll-winken.llnl.gov!noc.near.net!ctron-news.ctron.com!dur-news.ctron.com!slama@ames.arpa
Subject: No code tech./CB/not shedding a tear
To: info-hams@ucsd.edu
This would be addressed to those critical of the tech. no-code
class and those interested in this thread.
It has been my experience that the CB band is a repository
for unregulated communication of a indeterminate nature. Listening
to it reminds me of a nursery school with no supervision. The
profane language and lack of courtesy is sad. Please bear in mind
that I realize that CB traffic is regional and may differ, so I
suppose I can not make any generalizations.
However, because of the tech. no code exam, I have been able to use
2 meter. The "type" of people (ie HAM operators) on HAM bands,
exercise a great degree of courtesy and respect (There are
exceptions to every rule).
Because of the technical skill and interest, I suspect that most
of the troublemakers of CB will be content with turning a dial
to a simple channel. I am not convinced that HAM radio will ever
become as chaotic and "unappealing" as CB.
My point is that because of the no-code tech license, I have been
afforded the opportunity to get a "taste" of this hobby. I like the
taste, and I assure you that I will continue to upgrade my license.
I wouldn't be so skeptical of the no-code class.
-Fred (N1RVG)
------------------------------
Date: 20 Jul 94 11:54:48 -0500
From: europa.eng.gtefsd.com!ulowell!woods.uml.edu!martinja@uunet.uu.net
Subject: QST on News Stands?
To: info-hams@ucsd.edu
In article <30ja44$apv@wrdis02.robins.af.mil>, lakeith@robins.af.mil ( Larry
CONTRACTOR Keith Mr.) writes:
> Has anyone seen QST for sale at a news stand or other magazine outlet?
I've been buying it at the local HRO since my membership expired. (Unemployed
for now). But I haven't picked up the July/August issue yet. I noticed the
price went up to $4.99 for that issue. Is this what the rag cost is going to
be on the shelf? I only had three bucks in my wallet when I went into HRO to
get a QST. Nuts!
de WK1V
-jim-
------------------------------
Date: 20 Jul 1994 13:51:00 GMT
From: ihnp4.ucsd.edu!swrinde!howland.reston.ans.net!math.ohio-state.edu!mane.cgrg.ohio-state.edu!aus1.robins.af.mil!wrdis02.robins.af.mil!lakeith@network.ucsd.edu
Subject: QST on News Stands?
To: info-hams@ucsd.edu
Has anyone seen QST for sale at a news stand or other magazine outlet?
I am curious to see if it will sell.. CQ and 73 are usually available
at the book store, here. But, I have yet to see QST..
73,
Larry, KQ4BY
------------------------------
Date: 20 Jul 1994 15:06:30 GMT
From: ihnp4.ucsd.edu!swrinde!cs.utexas.edu!howland.reston.ans.net!newsserver.jvnc.net!yale.edu!noc.near.net!transfer.stratus.com!dbirch.sw.stratus.com!user@network.ucsd.edu
Subject: Scanner Cellular Mod
To: info-hams@ucsd.edu
One of my coworkers recently acquired a Radio Shack PRO 2032 scanner, which
is apparently able to modified to unlock the cellular frequencies. Since
he doesn't have internet access, he asked if I could find out what the
modification procedure is (apparently as simple as lifting a diode
somewhere, or something like that). Can anyone help out? Email directly
to me rather than clutter the newsgroup.
Thanks
Dennis
KD1IY
"Don't be humble. You're not that great." -Golda Meir
------------------------------
Date: 20 Jul 1994 15:55:48 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!prvalko@network.ucsd.edu
Subject: STOP THE INSANITY! (was: FCC Delays)
To: info-hams@ucsd.edu
Am I the only ham in the newsgroup that is getting tired of listening to
the whining about how long it takes to get a license back from the FCC?
I can certainly appreciate the complaints, as I waited for SIX MONTHS to
get my novice license in 1975-6 because of the CB Boom.
What just popped my cork was a message from a 2x2 Advanced class ham
complaining about not having his "Extra" license in his hands yet...
Hey, do you guys know that in the dark-ages of ham radio, you waited
WEEKS to even USE your new privledges? That was before we had instant
upgrades. Heck, back then, you had to sit and take the test in front of
some steelly-eyed, cold-blooded, FCC clerk! Not your friendly, local
VE!
I would love to see "instant licences" and my own experiences pushed me
to pettion the FCC and my congressman to initiate the "instant upgrade"
system that we have today. But this complaining is getting really OLD.
I mean, you guys waited 20 or 30 years to even get interested in ham
radio, it's not going away (yet). The FCC doesn't love you like *I* and
most other hams do, you complain loud enough and the FCC will do
something to fix the problem, that's for sure... and when did the Feds
do anything right for you recently?
73 =paul= wb8zjl
flames may be directed to dev/null
------------------------------
Date: 20 Jul 1994 21:08:13 GMT
From: EU.net!sun4nl!hacktic!zap@uunet.uu.net
Subject: Tel.nbr. SSB-electronics Germany ??
To: info-hams@ucsd.edu
Help, I'm looking for the telephone-number of SSB-electronics in Germany.
I saw an ad of them recently, and want to order a piece of equipment,
which isn't available in PA-land.
Tschuess,
-martin-
--
---------------------------------------------------------------------
| Brazil | Name : Martin Heffels |
| Worldchampion Soccer 1994 !!! | e-mail : zap@hacktic.nl |
| Thanks, Roberto Baggio :->> | air mail: pe1eec@pi8mst.nld.eu |
------------------------------
Date: Wed, 20 Jul 1994 09:21:32
From: ihnp4.ucsd.edu!swrinde!elroy.jpl.nasa.gov!lll-winken.llnl.gov!xanth.cs.odu.edu!saimiri.primate.wisc.edu!news.doit.wisc.edu!F181-152.net.wisc.edu!bmicales@network.ucsd.edu
To: info-hams@ucsd.edu
References <30bqcb$lot@nntp.club.cc.cmu.edu>, <30hec6$inu@wizard.uark.edu>, <30i5cl$hp5@edwin.bga.com>wis
Subject : Re: *finally it arrived* (but why no plus?)
In article <30i5cl$hp5@edwin.bga.com> maultsby@bga.com (John Maultsby) writes:
>From: maultsby@bga.com (John Maultsby)
>Subject: Re: *finally it arrived* (but why no plus?)
>Date: 19 Jul 1994 22:24:05 -0500
>>Another curiosity: no specific exemption is made in the rules regarding
>>the expiration of CSCEs for Tech+ hams - those too should expire in 365
>>days - but they don't.
>Actually, I think it specifically says on the CSCE that they never expire
>if they are the 5 wpm credit for a Technician. However, if they are
>credit for anything else, THEN they expire in 365 days...
>Here's a another curiosity: I was reading through the rule book (March
>'94 printing by the W5YI group) today, and noticed that it lists the
>license classes as Novice, Tech, General, Advanced, and Amateur Extra.
>ie - technically, there are only five license classes. I've gotten into
>debates with friends about whether there are five or six license
>classes. Since they're now going to actually print "Tech Plus" on the
>licenses are they modifying the rules to call it six license classes, or
>will it still be five classes with special circumstances for one of
>them? Just curious....
>73 de KE4CLW,
>John in Austin, TX
John,
As far as I know there will only be five classes of licensing.
However, I do not have a direct pipline to the FCC so this may be wrong :).
The one thing that I wish to clear up is that the Tech and the Tech
PLUS are two different (not better or worse - just different) animals. This
is especially important for the Tech PLUS that recieved their licence BEFORE
March 21, 1987. No CSCE is needed (if I read the rules correctly) since
these Techs will be given credit for the General Written Exam (element 3(
B)). All we need (yes, I am a pre-1987 Tech) is to pass the 13 wpm code in
order to get the General "ticket".
Ok, enough said...waiting for any replies
Bruce WA2DEU .......standing by
------------------------------
End of Info-Hams Digest V94 #820
******************************