Re: [amsat-bb] ERP on V and L for AO-40??

["John Stephensen, KD6OZH" <kd6ozh@xxxxxxx>]

AMSAT-DL recently published 25W EIRP for 70 cm and 100W EIRP for 13 cm for
SSB (without LEILA). Information from AMSAT-NA a few years ago indicated
that digital uplinks will require 6 times more power. I decided to shoot for
200W EIRP on 70 cm and crank the power down for voice operation.

73,

John
KD6OZH

----- Original Message -----
From: "Doug Faunt N6TQS +1-510-655-8604" <faunt@panix.com>
To: <amsat-bb@AMSAT.Org>
Sent: Monday, 11 June 2001 19:10 UTC
Subject: [amsat-bb] ERP on V and L for AO-40??


> My apologies if this has been answered definitively, but there's so
> much information available I'm not able to sort it out, and I've been
> concentrating on the S-Band downlink question.
>
> What ERP should be adequate for good signals on U and L uplinks for
> communication "all the time", "most of the time", and "some of the
> time"?
>
> Obviously it depends on the quality of the setup at the RX end to some
> degree, but obviously with LEILA in action there's an upper limit, and
> I suspect there's a bell curve.
>
> I can easily work out antenna, transmission line and output power if I
> know ERP numbers.
>
> 73, doug
> ----
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