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940127.txt
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1994-11-13
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Date: Sat, 30 Apr 94 04:30:11 PDT
From: Ham-Ant Mailing List and Newsgroup <ham-ant@ucsd.edu>
Errors-To: Ham-Ant-Errors@UCSD.Edu
Reply-To: Ham-Ant@UCSD.Edu
Precedence: Bulk
Subject: Ham-Ant Digest V94 #127
To: Ham-Ant
Ham-Ant Digest Sat, 30 Apr 94 Volume 94 : Issue 127
Today's Topics:
2m Amplifier mounted at antenna?
kites <--> antennas ?
Sidearm Physics
Send Replies or notes for publication to: <Ham-Ant@UCSD.Edu>
Send subscription requests to: <Ham-Ant-REQUEST@UCSD.Edu>
Problems you can't solve otherwise to brian@ucsd.edu.
Archives of past issues of the Ham-Ant Digest are available
(by FTP only) from UCSD.Edu in directory "mailarchives/ham-ant".
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: Mon, 25 Apr 1994 13:41:43 GMT
From: ihnp4.ucsd.edu!swrinde!gatech!mailer.acns.fsu.edu!usenet.ufl.edu!draco.nova.edu!rd1.InterLan.COM!sun1.interlan.com!tavernin@network.ucsd.edu
Subject: 2m Amplifier mounted at antenna?
To: ham-ant@ucsd.edu
In article <2ou099$kap@taco.cc.ncsu.edu>, nsyslaw@riogrande.acs.ncsu.edu (Lou Williams) writes:
|> I was curious if anyone here has tried using a 2m amplifier
|> mounted at the antenna, instead of at the rig. Most installations
|> I've seen have them mounted with short patch cables aft of the
|> rig, but in my case the feedline is over 100' and I was curious
|> if it would perform better / no-difference when mounted nearer
|> to the antenna? (The power would be switched in/out with the
|> rig. I've seen too many instances of amplifiers gone astray
|> and sending splatter/interference all over the band, so I DON't
|> wish to leave it on all the time).
If the amp has a receive preamp built-in ... then mounting it at the
antenna would improve the noise figure of your receive system.
There is a good discussion of this in the Satellite Experimenter's
Handbook (I think that's what the book is called :-) that is published
by the ARRL.
Victor Tavernini
Racal-Datacom, Inc.
tavernin@sun1.interlan.com
------------------------------
Date: Fri, 29 Apr 1994 14:09:55 GMT
From: ihnp4.ucsd.edu!swrinde!emory!cs.utk.edu!stc06r.CTD.ORNL.GOV!fnnews.fnal.gov!nntp-server.caltech.edu!news.claremont.edu!paris.ics.uci.edu!csulb.edu!csus.edu!netcom.com!mbutts@network.UCSD
Subject: kites <--> antennas ?
To: ham-ant@ucsd.edu
gganderson@augustana.edu (Kevin Anderson -7325) writes:
>Anyone on this list with experience using kites to loft
>antennas? I would like to hear your experiences.
I haven't tried it yet, but I've been sorely tempted.
The winds on the Oregon coast are strong and steady.
You can launch a kite and it will just hang there for
hours. I like to listen to my Sony 2010 when we go
to the beach, because the noise level is blissfully
low and signals are strong. So I've thought a little
QRP beach operating with a kite antenna would be neat.
My friend Larry Mull (I've forgotten his call) observed
some electric fence "wire" at a feed store that is
really heavy string with a few filaments of copper
woven in to make it conductive. Might be just the
ticket.
73 de KC7IT
--
Mike Butts, Portland, Oregon mbutts@netcom.com
------------------------------
Date: Fri, 29 Apr 1994 15:07:00 GMT
From: cantaloupe.srv.cs.cmu.edu!dolphin!mfk@cs.rochester.edu
Subject: Sidearm Physics
To: ham-ant@ucsd.edu
sorry just a test
bye
------------------------------
End of Ham-Ant Digest V94 #127
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