Inverted L Antenna For 160 And 80

Between watching unending law and order repeats and the xyl s lifetime movie sagas compounded by a dead 40 meter band here at night i became so totally bereft of late night activities that i got the bug to get back on 160 meters again with something that would fit in my backyard.

Inverted l antenna for 160 and 80.

In the fall of 2007 i was able to install my first amateur radio tower while this certainly was a huge improvement over my humble butternut multiband vertical my new tower had a major shortcoming a lack of antennas for the low bands. A popular misconception about vertical antennas for the low bands is that they must have elaborate ground systems. Double l antenna for 80 160. Inverted ls for 160 and 80 meters pros and cons of the dual band inverted l antenna.

1 put up the entire length of wire and the 4 1 balun and resonate it to the upper end of 80 meters by lengthening or shortening it. Winding an fcp isolation transformer why isot that way iso xfmr options fcp project 65 tower l bend 60 tower l bend 160 80 on one l fcp new. 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. This antenna is tuned by the following procedure.

160 meters and 80 meters. With my antenna tuner i can tune the inverted l for an acceptable swr on all bands 80 meters to 30 meters though the radiation angle would be very high. A dual band single antenna approach introduces complexity by adding a trap. Here s a vertical antenna for 80 and 160 fed with a single feed line that is simple effective and requires no ground system.

Planning a dual band inverted l for 160 80 meters modeling a quarter wave inverted l antenna for the low bands. Here is the pattern of the 160 80 meter antenna on 3 90 mhz. Isolation transformer place an inverted l design an inv l diy. 2 check to see that a good swr can be obtained in or near 160 m.

Following on from an article in practical wireless feb 2004 by gm0onx which showed how to build an 80 40 trapped inverted l antenna i modified the design to cover 160 80 40. 160 inverted l antenna by n4jte. In fact some have warned against attempting the antenna due to the trap alone.