A 23 cm Diagonal Waveguide Feed for Most Dishes.

by N7ART and VE1ALQ

Here is a series of texts and pictures:

First Russ, N7ART and his paper:

Russ's Paper (needs graphics)

N7ART's paper in ASCII (Use "SAVE AS")

Here is the Dual Band article
by Darrell, VE1ALQ

Darrell's Paper

VE1ALQ's modified N7ART dual band Feed
The feed,...the feed at VE1ALQ
Is this the Focal Point or Not? Darrell, VE1ALQ