"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

"Frank" wrote in message
news:X2lMe.197169$tt5.130324@edtnps90...
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

Hi Frank,

Unfortunately using open-wire is not an option, as I have to feed the
feedline in through the exterior brick wall of the house. I have 2 feedlines
running out now. One to the R7 and the other for experimenting. I am going
to try your suggestions with the loading coils, as soon as I get back from
vacation!!

MD wrote:
"Frank" wrote in message
news:X2lMe.197169$tt5.130324@edtnps90...

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


Hi Frank,

Unfortunately using open-wire is not an option, as I have to feed the
feedline in through the exterior brick wall of the house. I have 2 feedlines
running out now. One to the R7 and the other for experimenting. I am going
to try your suggestions with the loading coils, as soon as I get back from
vacation!!

Can you get something through a window? If the window can be opened,
you can place plexiglas or wood in the window, and then cut the
appropriate openings for ladder line.

- Mike KB3EIA -