JO69RK

144 MHz SQR MAIIN SQR DXCC

653 75 114

TR AUR AUE MS ES EME

1690 2018 1445 2220 2268 17865

My project to build new OWL 14 el DK7ZB antennas at spring 2015

 

My antenna boom who is 35 x 35 mm in 6 m of the total length of 8,8 m caused problem when elemen tholder was mounted direct on the boom, so the solution was to mount them on distances of 6 mm

Boom with 6 m 35x35 mm in the middle plus 30x30 mm and 25 x25 mm before mounting of distances on element holders

Picture above 4 antennas completed. I have tested to mount the coax cables in 45 degrees in the middle of the construction instead of the behind.

Primary results seems good with about 5 dB sun noise and good EME sigs.

 

Good sites for antenna builders on VHF and UHF:

 

DG7YBN

 

DK7ZB

 

YU7EF

 

G0KSC

 

Picture belows are before adjustment of element holders with distances