[amsat-bb] Re: AO-51 L/U

Gould Smith gouldsmi at bellsouth.net
Mon Jun 22 16:30:53 PDT 2009


David and the BB,

There is a published schedule that says that L/U is subject to interruption 
for telemetry collection.

I sent out a note to the BB earlier today explaining the problem I am having 
getting the satellite ready for this weekend.

The 22:30 pass only affected those in the eastern US, I don't plan on 
changing L/U during the 00:00 pass that covers a larger area.

The only schedule I can give you is that I will work on the satellite until 
I feel that it will give solid operation for this weekend, which I hope will 
be in the next 24 hours.

73,
Gould, WA4SXM


----- Original Message ----- 
From: "David - KG4ZLB" <kg4zlb at googlemail.com>
To: <n3tl at bellsouth.net>
Cc: "Andrew Glasbrenner" <glasbrenner at mindspring.com>; "Gould Smith" 
<gouldsmi at bellsouth.net>; <amsat-bb at amsat.org>
Sent: Monday, June 22, 2009 6:43 PM
Subject: Re: [amsat-bb] Re: AO-51 L/U


> Listening on the 22:24utc pass of AO-51 just now and for the second day 
> running, the sudden distinct change in sound reception tells me that the 
> analogue signal is being switched over to digital for TLM collection just 
> as it gets to me in Florida.
>
> If this is so then could we have a schedule of what passes TLM is going to 
> be collected please - we only get a few days to work mode L and I am 0 for 
> 2  and I can not be bothered to waste time if the published schedule is 
> not going to be adhered too!
>
> If its just not working in L/U then forget the rant!
>
> Thanks
>
> -- 
> David
> KG4ZLB
> www.kg4zlb.com
>
>
>
> n3tl at bellsouth.net wrote:
>> Thanks for this Drew. I have just seen that designation on the AO-51 
>> information page (the one linked to the status page on the AMSAT site) 
>> for the first time, although I've made countless visits to that page over 
>> the past year.
>>
>> For those who will operating Field Day from remote/portable sites and 
>> using antennas like the Elk or Arrow, you may wish to check out this PDF, 
>> which I found on the Cushcraft Web site:
>>
>> http://www.cushcraft.com/comm/support/pdf/Antenna-Polarization-14B32.pdf
>>
>> After reading it, I believe that AO-51 could prove to be more challenging 
>> to work than usual this weekend, given a TX output in the SO-50 
>> neighborhood and the antenna mismatch many of us will be dealing with 
>> (i.e., linear polarized antenna at the ground station vs. circularly 
>> polarized at the satellite).
>>
>> If I misread the document and have drawn inaccurate conclusions, I hope 
>> someone will post a correction. However, it seems to me like this 
>> provides all the more reason for us to focus on AO-7, FO-29 and VO-52 if 
>> we can.
>>
>> Thanks to all,
>>
>> Tim - N3TL
>> -------------- Original message from "Andrew Glasbrenner" 
>> <glasbrenner at mindspring.com>: -------------- 
>>
>>
>>   _______________________________________________
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>>
>
> -- 
> David
> KG4ZLB
> www.kg4zlb.com
> 



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