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Current through a coil in an antenna.
If we feed an antenna at the current point, the current decreases as the voltage increases along the antenna element from feed point to end.. That being said, a coil replacing a segment of an antenna (in order to physically shorten it) will exhibit the same properties (relating to currents) as the segment it replaced. "Richard Clark" wrote in message ... On 30 Oct 2003 22:59:26 GMT, oSaddam (Yuri Blanarovich) wrote: If we suppose the loading coil is heating up equally Hi Yuri, You have already testified twice that it does not - so why IF it around? 1.) If you trasmit for short period of time (not enough for heat to equalize) and feel it, or use thermal strips to check temperature, you would see the taper in the current from bottom to top. It is in order of 50%, not negligible. 2.) Put 500W to it for longer period and watch the heatshrink tubing shrivel from the bottom up. 73's Richard Clark, KB7QHC |
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