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Buck wrote:
Cecil Moore wrote: The HF bandwidth of that antenna *plus* the tuned feeders is 27 MHz, all the way from 3 to 30 MHz with an SWR of less than 2:1 (for the ham bands). I haven't measured the SWR outside of the ham bands. There's a graphic that shows the SWR=2:1 bandwidth for 40m to be about 160 kHz for a fixed length of ladder-line. how much RF is in the shack when you use your system? The ladder-line comes off at right angles to the balanced dipole so common-mode current is minimum and is choked on the transmitter side of the ladder-line length selector. Balanced currents don't cause "RF in the shack". If the currents are unbalanced, RF in the shack is likely with either coax or balanced line. -- 73, Cecil http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 100,000 Newsgroups ---= East/West-Coast Server Farms - Total Privacy via Encryption =--- |
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