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Old August 16th 05, 01:33 PM
Frank
 
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"MD" wrote in message
...
Lots of good information here guys, I appreciate all the help. Currently I
am using a long wire elevated at the ghastly height of 15' using the eaves
of the house as a counterpoise. I can work stations out to ~ 400-500 kms,
maybe that is the best I can manage.

Once again, thanks for all the help.

de VE3TMT


I failed to notice you did not want to use open wire line. If you use
inductive loading, for example: nominal 46 uH, Q = 200, at 15 ft from each
end of a 66 ft dipole. The radiation efficiency is 71%, i.e you loose 1.5
dB in the loading coils. The input impedance is 28 ohms, and the losses on
60 ft of RG213 will only be 0.24 dB. Orientation of the dipole is
unimportant since at 30 ft high the radiation is essentially
omni-directional.

73,

Frank


 
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