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FS: VHF Antenna for ATP satellite reception
VHF Antenna
High quality weather proof construction Crossed Dipole, turnstile design For receiving images from the `Polar orbiting satellites', which transmit Automatic Picture Transmission (APT) signals in the 137MHz band. Current satellites include the American NOAA series and Russian Meteor or Sich series. These tend to be sun-synchronous, with two orbits passing at or near overhead at the same times each day, 12 hours apart. APT resolution is about 4km per pixel and two channels are usually transmitted, Visible and Infra Red. The 137MHz band is a fairly easy band in which to build your own equipment and is relatively inexpensive as a band to start with. Provided you own a PC then it is possible to get started receiving APT signals for a little as Receiver kit and antenna by using shareware to decode the signal, using the power of your computer sound card. http://cgi.benl.ebay.be/ws/eBayISAPI...MESE%3AIT&rd=1 |
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