|Subject:||Re: [TowerTalk] ARR Preamp Failures|
|Date:||Wed, 06 Oct 2004 02:39:13 +0000|
Oh boy - plenty to read in the digest this morning...|
A preamp designed for being used mounted at the mast, but is not, looks kind of like incorrect use of the product, though one may think it okay.
Something about having some length of feeder before the preamp having some effect on the RF detection doesn't make much sense, but this method of switching is problematic by definition.
Maybe there is something else to this & we are all missing it in K9YC's specific setup, but serious preamps of the like from ARR are best hard switched & sequenced properly. And common sense also says that unnecessary T/R switches should be avoided, so no VOX.
That we do not hear from a number of people about RF-switched ARRs failing a lot does tend to suggest there may be something about the specific installation in Jim's case.
The only preamps I have lost were in the shack & nothing outside was left to decide when to switch on its own - sadly, none from ARR as they were a bit too dear for me.
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions and ask for Sherman, W2FLA.
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