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POTA Antennas

I enjoy designing antennas. I even have a US patent for one! This is an area where hams can still build their own gear. It is rewarding to make contacts with something MacGyver'd out of stuff in the junkbox!

Pole Pruner Vertical
base-loaded coil for 40m bypassed for 20m
(36 turns #14 insulated wire = 11 μH)
adjustable tip for fine tuning
3x quick-attach guy lines to tent pegs

coil top
Deployed

coil top
Connections

coil top
Tunable Tip

coil top
Guys


Tent Pole Vertical

coil top
40/20m
B-L Vertical

coil top
Deployed

coil top
on Pipe

coil top
on Tripod

coil top
on Bench
tripod
40m Coil
with 3/8-24 threads
tripod
Coil Jumpered
for 20m
coil top
40m SWR
coil top
20m SWR

Quick & Easy Hamstick Options

tripod
Tripod Mount

tripod
Parts

coil top
Deployed

coil top
Connections

tripod
Picnic Table Mount

tripod
Deployed

tripod
Connections

set up in seconds
push-on terminals for counterpoise wires
Not handy with tools? Buy this instead

20m Speaker Wire Linkable Dipole

tripod
based on Jerry's (KG6HQD) ultalight for QRP SOTA
but 18-gage for QRO POTA @ 25-100 watts

NO feedline-radiator connection to break
NO coax connection to break
click here to see connections
rings at ends link to 40m add-on


68-foot 3-Band Dipole
20m w/o coils, 40m coils shorted, 75m w/coils

tripod
coils wound on small plastic bottles
2.575" dia x 1.725" long x 23 turns = 30.4 μH

dipole
via K7MEM Short Dipole Calculator

Coil-Shortened Dipole Antenna Calculator

Coil-Shortened Vertical Antenna Calculator

Coil Inductance Calculator

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