[Date Prev][Date Next][Thread Prev][Thread Next] - [Date Index][Thread Index][Author Index]

RE: Antennas



With the early 1200 baud LEO's, I had very good success with a dual band J-Pole I built from a shower curtain rod. I had a preamp on receive and when needed, a 140 watt amplifier on the uplink. The plan was published in the AMSAT Journal. (not sure what issue)

Jon Haskell, W8JON
AMSAT

-----Original Message-----
From:	Laura Halliday [SMTP:va3ldh@sympatico.ca]
Sent:	Tuesday, March 28, 2000 12:18 PM
To:	amsat-bb@AMSAT.Org
Subject:	Re: [amsat-bb] Antennas

Mercxx@aol.com wrote:

 > As a new guy I was wondering are there any favorite
 > omni directional antennas that I could utlize to
 > work the Satellites? I know that working the HF links
 > that a dipole or other simple antennas will work. I
 > am interested in the 220 and 440 range. Thanks in
 > advance.

Satellites? 220? Do tell... :-)

The main thing you're looking for is moderate gain at
moderate elevations (30-50 degrees or so).

Quick and dirty: ground plane.

Less quick, but still dirty: turnstile, Lindenblad.

Even less quick, not quite as dirty: quadrifilar helix,
eggbeater, Texas potato masher.

You can whomp up a sample of any of these in a couple
of hours. With the exception of the last (is it on the
net somewhere?), these are all documented in all the
usual references.

It may be satellites, but it's still radio. People seem
to forget this...
-- 
Laura Halliday VA3LDH    "Laisse le vent tout emporter..."
Grid: FN03gs                - Foly/Viennet
----
Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org


----
Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org



AMSAT Top AMSAT Home