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CX2SA > SATDIG 22.03.09 23:11l 77 Lines 2429 Bytes #999 (0) @ WW
BID : 19198-CX2SA
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Subj: AMSAT-BB-digest V4 138
Path: IZ3LSV<IK2XDE<ON4HU<PY4WVZ<CX2SA
Sent: 090322/2103Z @:CX2SA.LAV.URY.SA #:19198 [Minas] FBB7.00e $:19198-CX2SA
From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
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Today's Topics:
1. Re: yagi design (Glen Zook)
----------------------------------------------------------------------
Message: 1
Date: Sun, 22 Mar 2009 10:29:47 -0700 (PDT)
From: Glen Zook <gzook@xxxxx.xxx>
Subject: [amsat-bb] Re: yagi design
To: AMSAT-BB@xxxxx.xxxx Bert Audenaert <audbert@xxxxx.xxx>
Message-ID: <75808.40096.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
For a "bullet proof" and "cookbook" antenna design you cannot beat the quagi.
The do not require any special feedline matching or anything else. Basically,
build it like the instructions and they work the first time. Go to
http://commfaculty.fullerton.edu/woverbeck/quagi.htm
for instructions on building one.
Glen, K9STH
Website: http://k9sth.com
--- On Sun, 3/22/09, Bert Audenaert <audbert@xxxxx.xxx> wrote:
Hereby my first mail on this BB. I want to start with satellite communication.
I already build an eggbeater antenna, but togheter with my TS2000 i receive
only very poor signals. To work more comfotable, i want to build two yagi
antennas (one for 2m and one for 70cm) with an azimuth/elevation rotor system.
For the 2m version, I took the following design of DK7ZB as a start:
http://www.qsl.net/dk7zb/start1.htm -> 144MHz yasis -> 6 El-28-Ohm (2m60).
Because I want to tune this antenna to the upper side of the 2m band (I had
145.800MHz as center frequency in mind), I entered the data of this yagi in
MMANA GAL, a free NEC program (http://mmhamsoft.amateur-radio.ca/mmana/).
After Calculation, i got totally diferent results as on the DK7ZB website.
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End of AMSAT-BB Digest, Vol 4, Issue 138
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