[Date Prev][Date Next][Thread Prev][Thread Next] - [Date Index][Thread Index][Author Index]
Re: Communication thru P5-A
- Subject: Re: [amsat-bb] Communication thru P5-A
- From: CLVANCIL@xxxxxxx
- Date: Tue, 27 Aug 2002 18:45:30 EDT
First, http://www.amsat-dl.org/p5a/p5a-to-mars.pdf was the PDF you quoted
from not http://www.amsat-dl.org/p5a/p5a-weaksignal.pdf . You didn't read
either is my guess.
P5A-weaksignal tells how the largest possible group of Hams can use Phase
5-A. it has few if any numeric references of importance to P5-A use.
Whereas p5a-to-mars has most of the numbers you mention and more about the
spacecraft, etc. It's worth a read!
Second, you had to look up it's location! Soon it will be a morning star and
as we approach April 2003 it will be easily viewed and the largest it's been
in half a century!
At least now you see a need for only a 65 foot (20 meter) dish.
--Chris Vancil
In a message dated 8/27/02 11:41:27 AM EST, cvn65vf94@msn.com writes:
> Hello Chris.
>
> <<Yes, Robert I do know the distance and location of Mars at this very
> moment
> without looking it up. Do you? <<
>
> Yeap Mars is on the other side of the sun right now...aka it has just come
> from being as far away as it gets.
>
> A am quite confident that an Amateur MArs probe is going nowhere. But you
> ought to read the article I posted.
>
> Do you know how many 100 wattt 10 ghz transmitters have flown? And they
are
>
> only going to get 50 watts or so out of it at Mars. That means that the
> "subset" of hams that would be hearing it much less decoding data from it
is
>
> probably in single digits.
>
> And of course that assumes that the manage to three axis stabilize it and
> get a finer touch on propulsion then AO-40 has demonstrated.
>
> In the meantime I will dream of my own 20 meter dish antenna in the
> backyard.
>
> Robert WB5MZO
>
----
Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org
AMSAT Home