Today we finally build and mount the new 15m monoband Yagi at Holly Farm. This one is designed from the outset so I can eventually interlace a 6m beam into the same boom, so there’s a fair bit of planning, measuring, balancing and “that’ll probably work…” engineering involved along the way!
In this episode:
MMANA-GAL modelling and far-field plots
Building the boom and element mounts
Rapid Pole / fibreglass element construction
Heat-shrink engineering fixes that actually worked surprisingly well!
Mast #2 comes back down again
Fitting the boom-to-mast clamp
Temporary guying and “orphan” support lines
Falling derrick system in action
Raising the tower with the new beam fitted
First look at the new 15m setup at 12m / 40ft
The idea here is to have dedicated Yagis for 10m, 15m and 20m all running independently with 20m and 15m on seprate rotators.
Still plenty to do yet – coax, driven element, tuning, balancing and eventually the 6m interlaced build – but mechanically, we’re getting very close now.
As always, this is real-world amateur radio engineering. Sometimes elegant. Sometimes slightly chaotic. Usually both!
73,
Callum M0MCX
#hamradio #amateurradio #yagi #antenna #dxcommander #hf #15m #mmana #tower #engineering