160 inverted l antenna by n4jte.
Inverted l antenna for 160 and 80.
Planning a dual band inverted l for 160 80 meters modeling a quarter wave inverted l antenna for the low bands.
Isolation transformer place an inverted l design an inv l diy.
This antenna is tuned by the following procedure.
A popular misconception about vertical antennas for the low bands is that they must have elaborate ground systems.
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.
Trapped inverted l antenna for 160 80 40 here s a simple antenna which will get you on the air on top band and 80m 40m as well at a pinch in a small garden.
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.
2 check to see that a good swr can be obtained in or near 160 m.
If you have eznec you can download an ez file of ve7ca s 160 meter inverted l fcp transmitting antenna here.
Double l antenna for 80 160.
Here is the pattern of the 160 80 meter antenna on 3 90 mhz.
Good for local contacts.
A dual band single antenna approach introduces complexity by adding a trap.
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.
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.
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.
In fact some have warned against attempting the antenna due to the trap alone.
Here s a vertical antenna for 80 and 160 fed with a single feed line that is simple effective and requires no ground system.
160 meters and 80 meters.
