On 28 Oct 2003 17:17:40 -0800, (Paul Lee)
wrote:

Does anybody know if those things work? They split a nav antenna
signal into a VOR and glide slope unit? Is significant signal lost?

The diplexer is a filter that provides good signal strength to each
receiver (about 1 dB of loss). It works by recognizing that a 1/2
wave dipole at Nav frequencies can also work reasonably well as a 3/2
wave antenna at Glideslope frequencies.

See:

http://www.rami.com/gaa5.htm#AV-570

Rob-
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Robert Cherney e-mail: rcherney(at)comcast(dot)net