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1. [VHFcontesting] [Fwd: Use of negative voltage to reduce power with FT-847] (score: 1): Author: David Pruett <k8cc@comcast.net>; Date: Tue, 02 Feb 2010 23:30:32 -0500; My thanks to everyone who replied to my query about this. Apparently, the problem was that I wasn't aggressive enough. The FT-847 manual describes the control voltage range on the ALC input as 0 to -; /archives//html/VHFcontesting/2010-02/msg00009.html (8,998 bytes)
2. Re: [VHFcontesting] [Fwd: Use of negative voltage to reduce power with FT-847] (score: 1): Author: Eric Watkins <shelshok@comcast.net>; Date: Wed, 03 Feb 2010 18:11:52 -0700; I think you just nailed the reason many people use the 817 to drive their DEMI gear. Since the TX won't make more than 5W even in it's highest power mode, you don't have to worry about cooking your s; /archives//html/VHFcontesting/2010-02/msg00011.html (8,136 bytes)
3. Re: [VHFcontesting] [Fwd: Use of negative voltage to reduce power with FT-847] (score: 1): Author: Bruce Herrick <bdh@teleport.com>; Date: Thu, 4 Feb 2010 11:46:39 -0500 (EST); I have never trusted that method. In theory it works fine. But...if the ALC fails, or the TIB or other source of negative voltage fails, or the radio puts out a high power spike as Eric mentions (and; /archives//html/VHFcontesting/2010-02/msg00012.html (10,043 bytes)

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