You probably can use the cheap plastic ones at 100 watts for a while but i have a linear now and the cost difference is just not worth the risk of arcing.
Ceramic insulator as center of dipole.
Use quality ceramic end insulators for your dipole.
Our insulators include center feed basemounting dipole end insulators and feed thru in porcelain andother high quality materials.
2 archer antenna insulators pair nos.
Yes commercially available versions are cheap and easy and you can make one out of a scrap piece of plexiglass r but why not make a weather proof one out of your scrap junk or cheap material from the home improvement store.
Watch lot of 10 johnson ceramic radio antenna spreader insulator.
Making a center insulator for a dipole antenna is an easy and fun project.
Then drill the two holes each half the distance of dimension a from the center.
Try to work as precisely as possible when drilling holes nr.
Frequency devices dipole center insulator antenna w a 1 1 current balun dcib uhf panel mount 5 pack rfadapter female so239 chassis mount 4 hole jack flange solder cup rf coax connector for j pole antenna 1 4 wave antenna ground plane antenna.
This one will fit my requirements for a simple 40m wire dipole or inverted v and.
This video shows close up how i did it.
Center insulator with hang up hook so 239 coax connector stainless eye bolts weatherized rugged 600 lbs pull strength wm801.
Center insulator 4 5 long porcelain.
Then measure the distance from a feedline hole to the outer edge of the insulator.
Drill the feedline holes first.
A center antenna insulator with feedline strain relief by kc8aon installing dipole insulators installing your dipole end insulators a beginner guide to proper setup wires to insultaors.
Mark the middle of the insulator with a permanent ink pin.
I use ceramic mfj 16c06 insulators at each support.