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#11
October 13th 14, 05:59 PM
posted to rec.radio.amateur.antenna
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OK, let's discuss dipoles vs length
Ian Jackson wrote:
In message , writes 60 feet is good for 30M, marginal for 40M, and crap for 80M and below for a dipole. It is also too high for 15M and up. For best results, a diple should be at .5 labda. Then again, a marginal 40M dipole is better than no antenna at all. Regardless of the theory, in real life (with real-life ground conductivity/reflectivity, and the prevalence of nearby clutter and obstruction), I can't help feeling in my water that 'higher generally works better'!! Depends on what you mean by "higher". As you start getting higher than 1/2 lambda, that one big lobe starts becoming a lot of smaller lobes pointing into the sky. Even the free demo version of EZNEC can show this. -- Jim Pennino |
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