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Re: AMSAT has a SECRET!



A 10 watt EIRP 1 MBPS PSK transmitter in a 800 km orbit would require a
minimum of 17 dBic antenna gain at the ground station if the receiver has a
1 dB noise figure. Antennas designed for AO-40 should be adequate.

73,

John
KD6OZH

----- Original Message -----
From: "Douglas Braun NA1DB" <doug@dougbraun.com>
To: "John Stephensen, KD6OZH" <kd6ozh@AMSAT.Org>; <amsat-bb@AMSAT.Org>;
"Edward R. Cole" <al7eb@ptialaska.net>
Sent: Saturday, 02 June 2001 23:03 UTC
Subject: Re: [amsat-bb] AMSAT has a SECRET!


> At 04:03 PM 6/2/01 , John Stephensen, KD6OZH wrote:
> >Wideband modes will work fine on LEOs at 2.4 GHz. UoS has 1 MBPS
downlinks
> >on S-band.
>
>
> But what sort of antenna do you need to capture such a large-bandwidth
> signal?


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