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Re: AO-40 S-Band antenna beamwidth ????



An excellent analysis of this for the uncoded telemetry was done by Colin,
VK5HI, and can be found at

http://www.amsat.org/amsat/sats/ao40/articles/AO40Squint.html

73,
Lee-KU4OS

----- Original Message ----- 
From: "K7XQ" <k7xq@elite.net>
To: <amsat-bb@AMSAT.Org>
Sent: Monday, November 17, 2003 0:47 AM
Subject: [amsat-bb] AO-40 S-Band antenna beamwidth ????


>
> Can anyone tell me what the antenna beamwidth of the AO-4-0
> S-Band downlink is ?? I am getting partial telemetry download at a
> squint of 55 degrees right now with my newly constructed S-band patch
> and a 36 inch dish and wondering if that's about right or not.
>
> K7XQ   Jeff   Atwater, CA.
> Grid: CM97qi
> EME, Satellites, Meteor Scatter
> JT-44, FSK441 ( WSJT ) , CW
>
> 144 MHz: 4 X 2MPX20's H/V 19 dBd 800 Watts single 3CX800A7
> Initials: 61
>
> 432 MHz: 3.1 meter dish 20 dBd 800 Watts 2 X 4CX400A7
> Initials: 5
>
> 1296 MHz: 3.1 meter dish 28.5 dBd 150 Watts 2 X 2C39 water-cooled ( soon
> 400 Watts single GS15B  )
> Minimum dish elevation of 20 degrees
> Initials: 22
>
> 10348 MHz: 3.1 meter dish
> Project for 2004 !
> Initials: 0
>
>
> K7XQ Homepage: http://www.elite.net/~k7xq/k7xq.html
>
> ----
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----
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