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Re: AO-40 schedule on field day


Stacey Mills sent out a note a week or two ago responding to several folks' 
same concern (including mine!).  If all goes well (and so far so good) the 
operating schedule will be expanded by Field Day, so we should have several 
hours of AO40!

 From Stacey a few days ago:

>Comments on the above:
>The passband schedule is dictated by solar angle and available power, 
>reasonableness of squint angle, and the need for testing functions.  There 
>are no other "special circumstances".  The command team strives for 
>maximum availability of the passbands every day.
>The above messages suggest that the ALON/ALAT will remain where they 
>currently are, with the current schedule in play for field day.  Those of 
>you who have been through the cycle before, know that this is not the 
>case.  I have covered the expectations for field day 2003 before on the 
>bulletin board:
> From AO-40 Update,  2003-03-02:
>>  We should return to ALON/ALAT =
>>0/0 about June 20th.  We can stay at ALON/ALAT = 0/0 until early October,
>>when the cycle starts over.  Thus, expect the passbands to be off from
>>about mid-April to mid-May, but active at varying phases of the orbit, the
>>rest of the time.  We should be in good position for field day, just
>>getting back to 0/0.
>A typical passband schedule for ALON/ALAT = 0/0 ( again from the bulletin 
>archives) is MA 40 to 210.  This has the passbands active when the squint 
>is approx. 30 degs. or less.  Barring an unforeseen problem, plan on a 
>similar schedule for field day.  AO-40 will be visible by all of North 
>America at the start of field day, Saturday June 21st and the passbands 
>will be active until approximately 19:13 UTC on that day.  AO-40 will 
>start to appear on the eastern edge of North America at about 0900 UTC on 
>Sunday and will be active until about 14:15 UTC that day.   This is all 
>based on making it back to 0/0 by June 20th.  We should at least be close 
>to that value by then, though the perigee eclipses are making it slow 
>going to advance ALON.
>---- W4SM for the AO-40 Command Team

David, ky7dr

At 07:44 PM 6/11/2003 -0500, bill butler wrote:
>Hi All,
>  Can someone help ?  I have been inactive for just ove a year
>and I do not understand AO-40 operating schedule for Field Day.
>  Are the Passbands for both U and L uplinks on only from
>MA 30 to MA 130.
>  Also my predictions for Sat. June 28 at 18:00 UTC show the
>MA at 140, if this is all correct does this mean AO-40 will
>not be available on Sat.
>                                       WB9KMD
>                                       Bill Butler
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