Dual Video Monitoring

From: Derek C Breit (breit_ideas@hotmail.com)
Date: Thu Apr 02 2009 - 23:10:34 UTC

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    As most of my Occultationist Buddies know, I have started observing
    'Classified Geosats' with a piggybacked ST80 on my LX200. Last time I did
    this, I was 'on a roll' with the Geosats, and with time limited, tried a
    Lunar Occultation with the ST80 and it's 2 x 1.5 degree FOV in an effort to
    capture information on a double star in support of IOTA's newest mission of
    determining accurate separations and PAs..
    
    I saw no evidence of a double star, even though this event had a separate
    listing in Dave Herald's OCCULT program. 
    I needed to have a camera on the 12" for Occultations. So I needed a way to
    easily switch to a second camera in the main scope, while maintaining
    accurate GPS Timestamps from a KIWI OSD and avoiding video cable "hot
    plugging".
    
    This is my $20 solution. Maybe others will find it useful for what they do..
    
    http://www.poyntsource.com/New/DualVideo.htm
    
    Derek C Breit
    BREIT IDEAS Obs - Morgan Hill - COSPAR 9739
    http://www.poyntsource.com/New/index.htm
    
    PS.. This is only tested (and setup for tonight) in the daylight. I will not
    know until night time and dark sky if this 'economical' switch adds added
    noise or loss of signal strength to my videos. The Monitor image looks real
    good, so we shall see..
    
    PSS.. I will eventually acquire another S-Video cable and see if the S-Video
    converter works, etc.. More testing to do..
    
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