|
Performance:
Full Size Quarter Wave
No Coils - No Traps - No Transformer
essentially same as DX Commander ($250+)
2 S-units / 6 dB over Wolf River TIA
Cost:
$15 for 50 feet of 18/2 copper speaker wire
(100 feet, separated, for element & 4 radials)
You may have enough wire in your junk box!
Features:
• omni-directional
• low radiation angle good for DX
• easy to change bands
• budget-friendly / extremely low cost
• low impedance / low voltage for safety
• field-reparable without soldering
• wide bandwidth - no tuner needed
• lightweight & compact
Deployment:
• throw line ties to ring terminal at top
• hang from tree or fiberglass mast
• feedpoint is just off the ground
• lower & move link for band changes
Original Tri-Band Linked Vertical
Closeup of Original Link
2 Optimized Designs:
>40m/20m/17m for SSB<
>40m/30m/20m for CW & FT8<
|
PUBLISHED:
QRP-ARCI published my article
in their October 2022 issue
UPDATE:
The links have been replaced with SPST switches!
NOTES:
• Your wire may require different section lengths
• Tune bottom section first, middle second, top last
• Tuning can change if wire is angled
Other Simple Link Designs:
|
|
3/8" poly tubing with cross holes for wires
knots for strain relief
alligator clips tinned wire for band switch |
|
|
1/4" poly tubing with single holes for wires
knots for strain relief
alligator clips tinned wire for band switch |
Feedpoint Options:
|
|
Banana Plug on Wire with PL-259 Plug on Coax |
|
|
Banana Plug on Wire with RCA Plug on Coax |
Radials Clip to Outside of Connector
Use with my >free radials<
Linked Vertical plugged directly into FT-891
with radials clipped to outside of antenna jack
>No Tree - No Problem - Use Mast for Sloper<
>Add 80m to the Linked Vertical<
Check out my books
for more good POTA info
80,966 QSOs and counting! |
|
