[amsat-bb] Re: AO-51 Signal Strength Post Flip

Auke de Jong, VE6PWN sparkycivic at shaw.ca
Tue Feb 9 20:42:25 PST 2010

    Another observation from DO33 (yo Bernhardt),  I've always had trouble 
hearing this bird well enough to work from my home station, as I have my 
antennas at fixed elevation, and manually-rotated via channelmaster... AO-51 
has been consistently easier to hear AFTER it has passed overhead on 
ascending passes.  Between AOS and peak-elevation, it's always just above my 
noise.  I don't have any observations about descending passes because I'm 
not up early enough to try those;) .      I also can't say how that compares 
to pre-flip, as I never heard it well enough to work, except on very low 
passes, and didn't keep notes.
    I actually had the bird all to myself a few weeks ago, while everyone 
from the USA already had LOS, and I had almost full-quieting for many 
minutes in a row that time, until my LOS.  This is what struck me as being a 
significant observation!

I hope this helps,

----- Original Message ----- 
From: "John Papay" <john at papays.com>
To: <amsat-bb at amsat.org>
Sent: Tuesday, February 09, 2010 8:47 AM
Subject: [amsat-bb] AO-51 Signal Strength Post Flip

> It  has been about a month now since AO-51 was commanded back to
> its normal orientation.  But many are reporting that they are having more
> trouble hearing it now than they did before the first re-orientation.
> It does seem to me that some stations that usually hear very well are not
> hearing that well now.  This morning's pass (9Feb2010 1045z) of AO-51
> seemed to bear that out.  AF6RF, KB1RVT, KE3LB, WD0X?, KJ4CBC,
> K5QXJ, WB2IOL and YF6BFE were on the pass and with a few
> exceptions, all were not able to hear at some point during the pass.
> There are also a few noisy uplink transmissions as well.
> The recording can be downloaded at:
> http://www.papays.com/AO-51_09Feb2010_104452za.mp3
> (there are no signals in the first minute of the recording)
> Is anyone else having trouble hearing AO-51 as well as they heard it 
> before
> the flip experiment?
> 73,
> John K8YSE
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