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Re: [IRCA] BOGish sky loop
Right now I have a 240 foot semi loop running around my six foot high fence.
It is fed with RG-58 the coax connects to the shortest leg that runs about
60 feet north to south, the longest leg which is about 120 feet east west,
and another north to south leg that is about 80 feet long. it is
un-terminated and the short leg runs under the main house feed that is about
10 to 12 feet above it and crosses it at an angle of maybe 65 to 70 degrees.
It gives me no power line noise. I performs well her but I do live in a
rural area with my closest neighbors being at least 1/4 mile way on either
side. The only noise I really get here right now is off the 17 inch HP
lappy I am using to log with. I think if I move it a little that will go
away. The receiver is an ICOM 756 with all the filters installed. I also
have an MFJ active antenna mounted about 75 feet from the house and screwed
to the back of an abandoned Direct TV dish. about 5 feet off the ground. It
is feeding into the house on RG-8 thatâs used to connected to a HF6B
vertical. Comparing the 2 right now I would give the edge to the semi-loop.
The 756 is in my HAM shack with lots of computers and Radios and wall warts
for most of the equipment. I might also mention that I am in a valley with
a ground elevation of approximately 950 feet. To the south a 1/2 mile away
is a 1300 foot hill, to the east is the valley with extremely high voltage
power lines directly from a power station at about 1/3 mile. The valley
runs to south west and north is another hill at 1600 feet about a mile a
way. I guess what I am saying is that my open loop for lack of a better
term works well all things considered.
Ham antenna wise I have a full sized Carolina Windom (off center fed dipole
about 258 feet at 30 feet), a 6 band Log Periodic at 40 feet, a 43 foot
ground mounted vertical with 40 32 foot radials, and a 60/30 meter dipole
sloper with the apex at 30 feet along with a home made 6 meter 1/2 wave
vertical, a 5 element 6 meter yagi at 40 feet, and a 5/8 wave 2 meter
vertical. I have used the Windom and my main HAM Rig - an IC-7600 - for
BCB DX and that combo seems to work well here as well.
Larry K8YYY
Once upon a time ---- it was earlier -
Shinnston, Northern Territories
Harrison County, West Virginia
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