My Satellite Antenna

My satellite antenna is a Moxon-Yagi dual band VHF-UHF antenna with a single feed line. This allows using a full duplex radio to simultaneously transmit in one band and receive in the other. Properly tuned, this antenna has an SWR (Standing Wave Ratio) of 1.0:1 in VHF and 1.1:1 in UHF.

The Moxon part of this antenna is supposed to be rectangular in shape, but I soon found out that I could bend the rectangle to achieve a perfect SWR!

This antenna has been fully tested to work with satellites such as AO-91, AO-92, SO-50, IO-86, and PO-101 (Diwata 2). To learn how to access satellite repeaters, head directly to Satellite Communications.

The antenna’s boom may be split in the middle, for easy storage and transport. Note that this is an earlier photo, no bends have been made yet in the elements of the Moxon part of the antenna.

Night Sky in Focus
Astronomy and Amateur Radio
© Anthony Urbano (Manila, Philippines)


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