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antenna lengths
"RB" wrote in message
news There are some commonly occurring lengths for multi-band dipoles. I see 105', 135', and 140'. Is 140' preferred over 135'? If so, what is the benefit of going from 135' to 140'? Just curious. Read the following: http://members.dslextreme.com/users/w6wqc/antenna.html The data on antenna efficiency is a misinterpretation of the NEC output file. It refers only to copper losses, and does not include ground losses. The discussion that "The length of an antenna wire is irrelevant" is the key point made. 73, Frank |
#2
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antenna lengths
There are some commonly occurring lengths for multi-band dipoles. I see
105', 135', and 140'. Is 140' preferred over 135'? If so, what is the benefit of going from 135' to 140'? Just curious. Pse look at the web: http://www.qsl.net/aa1ll/cfwire.htm Depending on your location (length of the feeder and free space for the dipole) consider Region 1, 3 or G5RV Region. 73 Chris SP7ICE |
#3
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antenna lengths
There are some commonly occurring lengths for multi-band dipoles. I see
105', 135', and 140'. Is 140' preferred over 135'? If so, what is the benefit of going from 135' to 140'? Just curious. Pse look at the web: http://www.qsl.net/aa1ll/cfwire.htm Depending on your location (length of the feeder and free space for the dipole) consider Region 1, 3 or G5RV Region. 73 Chris SP7ICE |
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