HF Long John 10 meter Beams:
I think these models were adapted for 11 meters until the mid 70's, however demand was not great enough to sustain the production of those versions.
The newer 10 /12 meter versions use shorter boom lengths.
Several Op's I work on 6 meters have purchased the 5 element versions and updated them to the old specs.
The old design 6m/6 element version I believe had a 33 ft. (?)boom.
Those versions were called the "BOOMER" series.
All the Best
Gary
I think these models were adapted for 11 meters until the mid 70's, however demand was not great enough to sustain the production of those versions.
The newer 10 /12 meter versions use shorter boom lengths.
Several Op's I work on 6 meters have purchased the 5 element versions and updated them to the old specs.
The old design 6m/6 element version I believe had a 33 ft. (?)boom.
Those versions were called the "BOOMER" series.
All the Best
Gary