[amsat-bb] Re: bird to bird fun

[Auke de Jong, VE6PWN]

How much more difficult was working two linear satellites with regard to 
doppler correction, given that the satellites are moving relative to each 
other as well as the operator??

Auke


----- Original Message ----- 
From: "i8cvs" <domenico.i8cvs at tin.it>
To: <w7lrd at comcast.net>; "AMSAT-BB" <AMSAT-BB at amsat.org>
Sent: Thursday, August 28, 2008 8:03 AM
Subject: [amsat-bb] Re: bird to bird fun


> ----- Original Message -----
> From: <w7lrd at comcast.net>
> To: "AMSAT-BB" <AMSAT-BB at amsat.org>
> Sent: Thursday, August 28, 2008 12:07 AM
> Subject: [amsat-bb] bird to bird fun
>
>> Hello All
>> Here's an interesting endeavor.  The downlink on AO-7 mode B is 145.950
>> which is the uplink for FO-29.  So you could hear yourself (or anyone
>> else on the FO-29 downlink at 435.850, when both are in view.   I think
>> there was something like this back in the days of the RS birds.  Why
>> bother?
>> Well we have to do something to keep our interest going while waiting for
>> the next HEO.  Plus it's fun.
>> 73 Bob W7LRD
>> Seattle
>>
>> --
>> "if this were easy, everyone would be doing it"
>
> Hi Bob, W7LRD
>
> Since OSCAR-7 mode B and FO-29 mode-J have both inverting transponders 
> using
> SSB it happens that to be received as usually in USB over the FO-29 
> downlink
> we must transmit as well USB into the OSCAR-7 uplink.
>
> Since the noise translated by OSCAR-7 mode-B is very high probably a try 
> on
> CW will be convenient.
>
> As Rick WA4NVM pointed out with OSCAR-7 mode-B and OSCAR-8 mode-J
> it was a common practice.
>
> 73" de
>
> i8CVS Domenico
>
>
>
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