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1. [TowerTalk] Remote RF coax switch utilizing DC on coax (score: 1): Author: "Rick Karlquist" <richard@karlquist.com>; Date: Fri, 21 Jan 2005 17:58:36 -0800 (PST); Several people have asked about my beverage switching scheme. I send a different DC voltage down the coax for each antenna and have a circuit at the end that detects the different voltages with compa; /archives//html/Towertalk/2005-01/msg00949.html (7,509 bytes)
2. Re: [TowerTalk] Remote RF coax switch utilizing DC on coax (score: 1): Author: "Jim Lux" <jimlux@earthlink.net>; Date: Sat, 22 Jan 2005 05:31:54 -0800; Another approach (which might be useful for remote bandswitching using the stepped voltage output of radios like the FT-817) is to use a LED bargraph chips (LM3914?) to measure the voltage, rather th; /archives//html/Towertalk/2005-01/msg00959.html (9,124 bytes)

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