----- Original Message ----- From: "Brian Moran" <bria...@yahoo.com> Here's one that works for TX & Rx. http://www.qsl.net/k5lxp/projects/CoaxSwitch/CoaxSwitch.html With lockout, etc. A homebrew version of the '6 pack' kind of box from array solutions. I have the Array Solutions one, and it works great. - Brian N9ADG ________________________________
Thanks Brian for the submission which I'm sure admirably suits selection of TX/RX antennas perhaps for selection of different bands etc. If I've read it correctly, the antennas are selected by rotary switches. The primary need for selection of RX antennas on TopBand is to be able to switch from any one to any other instantly without the tedium and confusion of having to spin a rotary switch back and forth whilst trying to find best copy out of an extreemly weak signal down in the noise. A matrix of "quiet" interlocked push button switches would be ideal, which require just one push to instantly change from any one antenna to any other. Unfortunately, they're not easy to come by these days which is why I'm thinking of a relay based solution. There's undoubtably software solutions available to do this but I'm afraid that's out of my league, unless someone here can pull a design out ready made for DIY! Cheers Dave _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK