I made a doublet antenna fed with 300 ohm twin lead i wanted to hit 80 meters. i am tuning it with my MFJ-949B i can tune 10-15-17-20-40&80 easy.
But it started out as an 80 meter antenna feed with 50ohm coax, i did not have the room to make it full length so i made it with coils 3/4 the way down and tuned it to 80 meters my taking winding off and cutting the ends. Then i decided to switch it up and slapped 300ohm twin lead on it and it seems to work good...
at the risk of messing it up and...
300 ohm feed doublet antenna with coil
But it started out as an 80 meter antenna feed with 50ohm coax, i did not have the room to make it full length so i made it with coils 3/4 the way down and tuned it to 80 meters my taking winding off and cutting the ends. Then i decided to switch it up and slapped 300ohm twin lead on it and it seems to work good...
at the risk of messing it up and...
300 ohm feed doublet antenna with coil