VHF Open-Stub J-Poles

VHF Portable Antennas

 

Arrow Antennas Style for 222 Mhz
Arrow Antennas Style for 222 Mhz

 

Open-stub design from Arrow Antennas.

Base angle: hole centers= 3″ drill and tap 3/8-24 the short element, 1/2″ for mounting the SO-239 stud mount.

Elements are 3/8 Al round 6061T6

Cut long element= 37 3/8″ , thd 1/2″ as 3/8-24

Cut short element= 12 3/8″, thd 1/2″ as 3/8-24, add jamb nut

drill and mount a TV mast U-clamp on the face of the angle stock.

 

Dimensions for 2m:

Al angle 2x2x5″ hole centers 4″

Cut long element= 57 1/8″ thd 1/2 as 3/8-24

Cut short element= 19 3/4″ thd 1/2″ as 3/8-24

 

For more details and parts go to Arrow Antennas .

Note: These are not advised as a base station antenna without a lightning arrestor!