James2
Newbie
I am constructing a simple 2 m 1/4 wave groundplane which is made of 5 brass rods, one center vertical 19.5 to 20 inches long soldered to the center of an SO-239 connector, and four 19 inch radials bolted to each of the connector holes of the SO-239 connector.
My question is "what angle is best for the radials?" The drawing I have shows them at about 45 degrees but I have seen other antennas with angles of 60 or 80 degrees.
.................Cut four pieces, 19 inches long for the radials. On one end twist the rod to form a loop. Fasten the radials to the chassis connector holes by running the four small bolts through the loops and bolt on the other side. .
Note :If you have access to an SWR meter, you can cut the center element at 20 inches and then prune the element ( about 1/8 " at a time ) for best SWR...................
My question is "what angle is best for the radials?" The drawing I have shows them at about 45 degrees but I have seen other antennas with angles of 60 or 80 degrees.
.................Cut four pieces, 19 inches long for the radials. On one end twist the rod to form a loop. Fasten the radials to the chassis connector holes by running the four small bolts through the loops and bolt on the other side. .
Note :If you have access to an SWR meter, you can cut the center element at 20 inches and then prune the element ( about 1/8 " at a time ) for best SWR...................