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Re: Anyone running CB's in their truck these days?
Quote:
Originally Posted by '68OrangeSunshine
Mr Beast, I seem to recall a device [black box] that was cut-in to the coax of one side of a twin mirror mount -- which by tuning a variable capacitor -- could sweep the focus of the bi-polar pattern into a directional array. The nominal radiation of ''rabbit ears'' was a figure eight, but changing the signal could make it cardioid, and also onmidirectional.
For on-highway use, the fore-and-aft signal of the bidirectional set up is probably best, but a variable sweep function is interesting.
Is there more to it than just a variable capacitor? I remember proprietary black box devices being available, some decades ago.
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I am sure you are right about that, although I have not ever seen one.
On my sailboat I have an Isolated backstay with a tuner on it that really works well, I have talked to Japan and Alabama with it from Puget Sound.
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