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#41
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On Fri, 12 Nov 2004 11:34:39 -0600, Cecil Moore
wrote: Radials? I missed that. On 11 Nov 2004 12:20:02 -0800, (Dr. Slick) wrote: Hint: no inductive choke was needed, and the radial lengths remained the same. Problem: Unconventional usage leads to unconventional claims; shortly followed by unconventional physics offered as proof in terms of unconventional usage - familiar? |
#42
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Richard Clark wrote in message . ..
On 12 Nov 2004 06:07:50 -0800, (Dr. Slick) wrote: I'll bet you money that a well designed, dedicated, tunable antenna can achieve a better SWR than any discone. I don't want your money (nor your ganja). Time and tide won't wait for you to offer an example either. :-) Don't take my word for it...go measure and compare for yourself... S. |
#44
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Dr. Slick wrote:
I'm certain that one of two things (or a combo of both) did the trick, but i wanted to see if any of you seasoned antenna boys could guess what the problem was. Dear Dr - This is just a WAG, but were you supporting the dipole on an aluminum ladder at first? Then substituted a non-metalic support? Thanks for the interesting topic - I see it has long legs! Lee H, NB7F antenna boy... |
#45
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Dr. Slick wrote:
"(1)A properly tuned and positioned dipole will be resonant at only one frequency. (2)Double-dips are a bad sign, and the return loss suffers." (1) - Nope, just not true. (2) - Not true either. (see #1) With the two 'dips' not being harmonically related, it appears that there is some 'other' reason, the feed line for one, or something near the antenna (a person for instance?). 'Doc |
#46
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'Doc wrote:
Dr. Slick wrote: "(1)A properly tuned and positioned dipole will be resonant at only one frequency. (2)Double-dips are a bad sign, and the return loss suffers." (1) - Nope, just not true. (2) - Not true either. (see #1) With the two 'dips' not being harmonically related, it appears that there is some 'other' reason, the feed line for one, or something near the antenna (a person for instance?). 'Doc He said something about radials. Radials not attached to the antenna are like parasitic elements. Two shorter radials will resonate at a higher frequency than two longer radials. -- 73, Cecil, W5DXP |
#47
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Richard Clark wrote in message . ..
On 12 Nov 2004 12:16:27 -0800, (Dr. Slick) wrote: Don't take my word for it Never entered my mind to do that. ...go measure and compare for yourself... Been there, done that. Time and tide are not still for the expectation of ganja-man's example. :-) Like i said, i'm willing to bet money. But your stubborness and inability to receive new information has kept you ignorant this long, so why should you ever change? Stay the way you are and always have been... Slick |
#48
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#49
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Along those same lines: did you swap a metal mast for a fiberglass one?
NB7F antenna boy |
#50
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Richard Clark wrote in message . ..
On 13 Nov 2004 15:36:02 -0800, (Dr. Slick) wrote: But your stubborness and inability to receive new information What new information? Time and tide washes over empty claims. :-) So the time and tide will wash over your empty brain too! Quit tokin' on your spliff and name a simple "marijuana garden variety dipole" antenna that outperforms a broadband Discone Biconical Dipole Rhombic Log Periodic Dipole Don't need to. "Jack of all trades and master of none" applies to broadband amplifiers AND antennas as well. S. |
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