80m Inverted L

Seems to be effective.

80m inverted l.

Hf 160 to 6 meter band with so239 connector9 1 unbalanced to unbalanced current transformer ena. 80m inverted l antenna base loaded for 160m click here to jump to latest news on this antenna my coaxial dipole would just about tune up on 160m but its replacement a standard 40m half wave dipole wouldn t. The model was examined for reasonable performance down to 80m and avoidance of high driving impedances in any amateur bands. My feeling is that the coil losses and tricky matching problems with top loaded wire antennas make the inverted l the way to go for simplicity of construction and.

That is what i have been using for the 80m inv l. If you can find a tree house pole anything elevated which can be used to support the end that will work better than when sloping to the ground. I installed another inverted l 125 feet and kept it away from the 80m antenna by at least three feet at the feed point. Like all verticals i would need a ground radial system to maximize efficiency and cut losses.

An inverted l is a form of bent vertical with the vertical section running up a mast for 1 8 wavelength or more if possible and a horizontal wire running for 1 8 wavelength from the top of the mast. There are a lot of 160 designs out there on the internet with quite a few adding coils etc to match shorten verticals or top loading with various configurations. 160 meters and 80 meters. Planning a dual band inverted l for 160 80 meters modeling a quarter wave inverted l antenna for the low bands.

Given the small size of my garden even a long wire contorted with lots of bends wouldn t easily fit. With 27m as a starting point nec models were created for an inverted l with a 7 7m vertical section to a suitable anchor point on the mast and 19m in the horizontal top leg. How to build an inverted l for the low bands 40m 80m and 160m an inverted l is just like a vertical apart from the fact that instead of going straight up like a tuned quarter wave it turns 90 degrees somewhere. 9 1 unun 300 watts hf 160 to 6 meters.

Of course you must keep the end of the antenna high enough above ground such that humans and animals will not be harmed by the high voltage on the end of the wire. 80m fundamental 1 lobe 3 39 dbi at 5 40m 2nd harmonic 2 lobes 2 95 dbi at 50. It works great and does not affect the 80m inv l. Shown here is an inverted l with its long leg sloping to the ground.