for the other guys who like to 'roll their own' what do people use to switch the elements around the horn? i have a wiring diagram i like, but the relay choice is my inquiry. 3 DPDT open frame relays
This link shows a pic of the Array Solutions 4-square box. It looks like they are using fairly large open-frames relays. Maybe this will give you some ideas. 73, Stew K3ND ___________________________
Here's the link with the pictures. http://www.arraysolutions.com/Products/foursquare.htm Anyone have more details on the relays? 73, Hank, W6SX Mammoth Lakes, California Elevation 8083 feet in John M
http://www.arraysolutions.com/Products/rf_relays.htm#top%20of%20page You might have to ask, though, whether such relays are overkill. For many years TopTen has used $2 sealed relays in their antenna
It's not so much whether they are sealed or not, or even what the DC/60Hz ratings are. You're using a relay that is designed for low frequencies for signals that are substantially different, so there
I know this was not the case at TopTen. George, W2VJN described the testing process he used to make sure the relays they use can do the job. IIRC, it included extended key-down tests as maximum legal
I have been using some fairly large open frame, 24VDC relays that I got years ago. These are similar to the smaller Array Solutions relays. see: http://www.dl1iao.com/album/k3nd99/7.jpg Although I'm
Pete's right.. I should have said "some" makers.. But I did search and the only thing I turned up is the following post (from Pete) On the other hand, TopTen has used very inexpensive DPDT relays in
Author: Pete Michaelis - N8TR <pete.n8tr@gmail.com>
Date: Fri, 27 Mar 2009 11:24:05 -0400
I found in my archives the following post from W2VJN: From: "George, W2VJN" <w2vjn@rosenet.net> To: "towertalk" <towertalk@contesting.com> Subject: Re: [TowerTalk] Relays for antenna switching? Date:
Excellent.. I guess the TT archive search doesn't go back that far.. So "many power tests".. and that's sort of typical for ham products, which is just fine. However, I wouldn't put that in the "exte