Re: [amsat-bb] 5 1/2 turn helix for offset dish

["Lee" <lee-fl@xxxxxxxxxx>]

I use a helix for my offset dish based on K5OE's 16 turn design.  I just
wound it in the opposite direction and shortened it to 5 turns.  I've used 5
turns on the 18 inch offset and 7 turns on the 36 inch offset and both
seemed to work great.

http://members.aol.com/k5oe/P3D_ant/helix_16.htm

Lee-KU4OS

----- Original Message -----
From: <ASTROHAM47@aol.com>
To: <amsat-bb@AMSAT.Org>
Sent: Saturday, August 03, 2002 11:41 AM
Subject: [amsat-bb] 5 1/2 turn helix for offset dish


> Can anyone help..who has made a helix for offset dish...I have gotten info
> off of several web sites...one refers to flattening the 1st 1/2 inch of
the
> helix..and soldering  coax foil sheild to it?? making matching section...I
do
> not  understand what to do here...I know you dont want the helix to touch
the
> reflector....
>
> Mike Miller KA5SMA
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