A variation of the Ladder Line antenna is an Inverted Ladder Line antenna. The inverted ladder line antenna works best in drooping it only to 20 degrees. At 45 degree angles it exhibits some strange radiation characteritics, so it's best not to droop it too much.
The way you match this antenna is to construct the antenna longer than you need, then trim back the wire to give a good match on your VSWR meter. Below is a chart showing "aproximate" line lengths.
|
80 mtrs |
40 mtrs |
20 mtrs |
15 mtrs |
10 mtrs |
Each leg: |
62' 6" |
33' |
16' 6" |
11' |
8' 4" |
Total Length: |
125" |
66' |
33' |
22' |
16' 8" |
|