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#13
October 23rd 06, 01:04 PM
posted to rec.radio.amateur.antenna,alt.ham-radio.hf
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Hf Antenna Question
Ian White GM3SEK wrote:
The bunched choke is the one that has a Fmax/Fmin frequency ratio of 6. A certain amount of mental gymnastics allowed you to claim that 1.5, 2.1 and 2.7 are all approximately equal to 2... so how about 6? It is a known fact that the VF of these chokes changes with frequency so they don't behave exactly like a transmission line. Bunching probably changes the VF considerably more than a helical wound choke since the first turn and last turn may be on top of each other. -- 73, Cecil http://www.w5dxp.com |
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