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Total 11 documents matching your query.

1. Topband: Switching Beverages (score: 1): Author: Pete Smith <n4zr@contesting.com>; Date: Tue, 01 Feb 2011 17:29:17 -0500; If I have a Beverage "hub" from which I want to run several of them, is there any reason not to do the switching on the antenna side of the matching unit, rather than on the coax side? Could save som; /archives//html/Topband/2011-02/msg00006.html (7,157 bytes)
2. Topband: Switching Beverages (score: 1): Author: "Lee K7TJR" <k7tjr@msn.com>; Date: Tue, 1 Feb 2011 18:42:28 -0800; Pete, here is my take on switching Beverages, It is a lot harder to make a switch with very good isolation at 500 ohms than it is at 50 or 75 ohms. You need very good isolation between connections so; /archives//html/Topband/2011-02/msg00011.html (7,611 bytes)
3. Re: Topband: Switching Beverages (score: 1): Author: Greg - ZL3IX <zl3ix@inet.net.nz>; Date: Wed, 02 Feb 2011 18:58:25 +1300; Hi Pete, As long as your relays have decent isolation, even for high impedances, it may even be better to switch the Bev wires themselves. That way you don't share the ground at the feed end, and avo; /archives//html/Topband/2011-02/msg00012.html (7,425 bytes)
4. Re: Topband: Switching Beverages (score: 1): Author: "Jorge Diez - CX6VM" <cx6vm.jorge@adinet.com.uy>; Date: Wed, 2 Feb 2011 09:31:57 -0200; seems you are talking about building a hub/switch for beverages. I asked several times here about commercial options and I found the RAS8x2 (too big for me) and the DXPedition II by KD9SV Finally I h; /archives//html/Topband/2011-02/msg00018.html (8,775 bytes)
5. Re: Topband: Switching Beverages (score: 1): Author: Pete Smith <n4zr@contesting.com>; Date: Wed, 02 Feb 2011 07:30:58 -0500; Thanks to everyone who responded. Lee's answer seems representative of the bulk of the mail I received. Back to coax switching! 73, Pete N4ZR The World Contest Station Database, updated daily at www.; /archives//html/Topband/2011-02/msg00019.html (8,875 bytes)
6. Re: Topband: Switching Beverages (score: 1): Author: "ZR" <zr@jeremy.mv.com>; Date: Wed, 2 Feb 2011 11:20:53 -0500; Im currently using a pair of Ameritron RCS 4's and their isolation is horrible as designed. Im working on my own design using cheap 1 GHz relays with 70dB of isolation at HF. Then I can also reduce t; /archives//html/Topband/2011-02/msg00023.html (10,053 bytes)
7. Re: Topband: Switching Beverages (score: 1): Author: Rik van Riel <riel@surriel.com>; Date: Wed, 02 Feb 2011 18:20:21 -0500; You got my attention there. I want to build a K9AY array and maybe a 2-wire beverage at some point, so I would really like to know... Where can I find such relays? :) -- All rights reversed. ________; /archives//html/Topband/2011-02/msg00027.html (7,568 bytes)
8. Re: Topband: Switching Beverages (score: 1): Author: "ZR" <zr@jeremy.mv.com>; Date: Wed, 2 Feb 2011 19:09:14 -0500; I picked up 2 dozen 24VDC DIP style at a local hamfest after running home with one and testing isolation. They were $1 each. Look in Mouser, DigiKey, Allied and other catalogs to find model # and spe; /archives//html/Topband/2011-02/msg00029.html (8,819 bytes)
9. Re: Topband: Switching Beverages (score: 1): Author: Greg Chartrand <w7my@yahoo.com>; Date: Thu, 3 Feb 2011 03:58:30 -0800 (PST); I use an RCS-4 but I replaced the remote antenna switch box with my own using $1.25 relays from Allelectronics. The remote box is a small plastic one also from Allelectronics. The isolation is supe; /archives//html/Topband/2011-02/msg00034.html (8,326 bytes)
10. Re: Topband: Switching Beverages (score: 1): Author: Wayne Kline <w3ea@hotmail.com>; Date: Thu, 3 Feb 2011 10:12:37 -0500; To add to Carl's info I just finished building a K9AY array system and used Mouser # 8L01-12-101 you can also use there 8L01-12-001 or 8L01-12-101 Wayne W3EA _________________________________________; /archives//html/Topband/2011-02/msg00035.html (10,031 bytes)
11. Topband: Switching Beverages (score: 1): Author: Bil Tippett <btippett@alum.mit.edu>; Date: Fri, 04 Feb 2011 05:48:39 -0500; it may even be better to switch the Bev wires themselves. That way you don't share the ground at the feed end, and avoid any common impedance coupling. I agree. I've done this since installing my fir; /archives//html/Topband/2011-02/msg00039.html (6,713 bytes)

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