[amsat-bb] Re: DO-64

Sebastian w4as at bellsouth.net
Mon Sep 15 16:21:05 PDT 2008

I listened to a pass earlier this morning ago over Miami Florida.   
Good strong CW beacon heard throughout the entire pass, down until  
about 1 degree, but still nothing heard on my uplink.

73 de W4AS

On Sep 13, 2008, at 12:03 PM, Luc Leblanc wrote:

> On 13 Sep 2008 at 8:15, WILLIAMS MICHAEL wrote:
>> As usual, the downlink signal gets weak on the second half of the  
>> pass.
>> Mike Williams K9QHO
> Got the same results here i got explanations regarding this signal  
> drop for polarisation change but as the satellite attitude is
> uncontrolled i tend to believe it's more an effect of the antennas  
> pointing towards the earth station and pointing away than a  
> polarisation
> issue. This change in the signal level start exactly pass the TCA  
> point and signal degrade up to a point he's drop below the noise?
> I try to figure out the satellite shape spinning and thumbing in  
> space in regard of the polarisation and it will be very odd that the
> polarisation change happen just at TCA?
> Any ideas here?

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