Hi David,

The frequencies I indicated were the satellite input/output frequencies as I saw them here.

My transmit and receive frequencies were those frequencies +/- Doppler

It seemes to me that there is a 6kHz offset within the satellite transponder.

I presume the Delfi team can tell us what the actual situation is.

Alan

ZL2BX

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From: [email protected] [mailto:[email protected]] Sent: Sunday, 27 July 2008 21:14 To: [email protected]; [email protected] Subject: Re: [amsat-bb] Re: Delfi C3 transponder frequencies ?

In a message dated 27/07/2008 20:27:18 GMT Standard Time, [email protected] writes:

Hi all,

On the one good pass over ZL so far I had to use a +6kHz offset on my uplink to receive on the nominal downlink frequency. i.e. satellite input frequency of 535.556 (nominal 435.550) to hit the 145.900 satellite output frequency.

Alan ZL2BX

Hello Alan

Hello Ib

That's quite a spread of frequencies 556 to 565. Was that corrected for doppler?

I suppose the other possibility is that Alan has been listening towards the end of the pass when the satellite has reached its maximum temperature and drift?

This will be interesting to follow!

Sorry not to see you at Surrey this year Ib. Hope everything is OK

Regards

David