[amsat-bb] Re: Prospero

Roger Duthie rjaduthie at gmail.com
Sun Oct 23 06:14:45 PDT 2011


On 20/10/11 09:31, John Ronan wrote:
> On 19 Oct 2011, at 14:29, Roger Duthie wrote:
>> Some of you may have heard that a team in the UK are trying to re-contact and old British launched satellite for the anniversary of its launch (28th October 1971).
>> We've been given a licence to transmit and will be testing our re-engineered ground-segment in the next fortnight.  The passes we are going to concentrate on will be as far out west as possible, as to minimise QRM from Europe.  Earth is a lot more EM noisy than it was in 1971.
>> If anyone in the UK wants to try and tune in to the downlink, you can help ID any response we get from the old bird.  The passes are summarised here:
>> https://public.sheet.zoho.com/public/rjaduthie/prospero-passes-in-the-next-fortnight
>> There are other passes, though these are the ones which are out west.  We'll see how we do.
>> -Roger
>> -- 
>> ---
>> Roger J A Duthie
>> m0rja
> Hi,
> Is it just a recording you are after? or how do you suggest one tries to gather useful data?
> Regards
> John
Hi -

A recording would be grand.  We may have heard something on Friday, 
though we're still piecing together what we can expect.  If recordings 
are made of the times when Prospero is to pass then we can get an idea 
of what everyone is hearing now.

On Friday we listened to a complete pass and definitely heard something 
different when Prospero was in our vicinity.  Whether this was 
coincidence with some QRM we don't know.  As long as others aren't 
transmitting at the same time as us on the Prospero frequencies, we have 
a reasonable chance to apply the scientific method to be certain of what 
we're listening to.

We probably won't make another attempt till Monday - and we will 
probably try the passes at around 1800.

There is information on this on the AMSAT-UK site front page:  this 
includes the passes we've marked out for definite attempts (we may try 
others) and there are some archived recordings of Prospero to compare to.

- Rr.

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