[amsat-bb] Re: antenna direction calibration

Greg Dolkas ko6th.greg at gmail.com
Sun Jul 14 21:08:41 PDT 2013

Hi Bob,
I use the Sun, late in the afternoon.  The satellite program tells me where the Sun should be, and I aim the rotor to match.  Then up on the roof I go, to align the rotor mount so the shadow runs down the beam.  Worked quite well for aiming at AO-40.
Of course in the Pacific Cloudy West, you may have to wait awhile for a clear day...
Greg  KO6TH

Bob- W7LRD <w7lrd at comcast.net> wrote:
>You'd think I would have this figured out by now. I never paid very
>close attention to exact antenna direction until now. I mean the
>satellite was always within the beam pattern. I tried the SuM part of
>Satpc32. I am thinking of trying some EME, and I looked up the boom of
>the yagi' and I was about 8* high and maybe 10* to the right of the
>moon, still probably within the half power point of the beams. This is
>where the obsessive part comes along, should I use the moon as the
>"grand phooba" of calibration? Or compass true/mag. I mean the moon is
>"pretty" consistent. As always the collective thoughts of this bb are
>never wrong. 
>73 Bob W7LRD 
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Sent from my Android device with K-9 Mail. Please excuse my brevity.

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