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vlf antenna question
Hi all,
I have a wireless fence, which operates at 17 kilohertz. It is used to create a wireless fence to keep our dog confined to area close to the transmitter and works in conjunction with a shock collar (the receiver is carried by the dog). We haven't used it yet, but the literature suggests the range is around 90 feet. I found the transmitter schematic on the FCC website. The transmitter is nothing more than generic audio amplifier chips fed with 17 kilohertz signals from what appears to be a PIC or ASIC device. The antennas are large (8-9 inch) air wound coils that have MANY turns on them. I'd like to increase the range without spending much money-so I want something quick and dirty:: If I disconnect one of the built in antennas, can I hook up the transmitter to an external antenna consisting of many turns of wire mounted in the basement (say a 5 or 10 foot diameter loop)?? Would this give the transmitter more range, or would the range be the same as the smaller loops that are built in? Thanks, A |
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