one-eyed Jack
Manufacturer
It was yesterday in case you missed it. One of my 2M only antennas on the roof is a Diamond F23a 3 element co-linear vertical. It's 15 ft long (high). Thin copper rods in fiberglass tubes joined together. Three radials. I was having some issues with it and called Diamond. The tech told me that the exterior of the tubes need to be kept clean. Didn't say why, but told me that the model discontinued. I took it down and cleaned it. Will do the same each Oct 20. Sounds stupid, but a true story. Jack W1FKG.