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! |
Multi-Band Linked Vertical
Choose from 2 Designs:
Optimized for SSB or CW/Digital
High Performance on a Budget
![tripod](images/linked_vertical.jpg)
click image for more info
Tent Pole Vertical
![tripod](images/red_coil.jpg)
40m Coil
with 3/8-24 threads |
![tripod](images/red_coil_jumper.jpg)
Coil Jumpered
for 20m |
![coil top](images/swr_40.jpg)
40m SWR |
![coil top](images/swr_20.jpg)
20m SWR |
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](images/pole_pruner_antenna_v2.jpg)
Deployed
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![coil top](images/pole_pruner_connections.jpg)
Connections
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![coil top](images/pole_pruner_antenna_tip.jpg)
Tunable Tip
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![coil top](images/pole_pruner_guys.jpg)
Guys
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Quick & Easy Hamstick Options
![tripod](images/tripod_mount_drawing.jpg)
Tripod Mount |
![tripod](images/tripod_1.jpg)
Parts
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![coil top](images/talcott_2019_2.jpg)
Deployed
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![coil top](images/talcott_2019_3.jpg)
Connections
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>CLICK HERE for FREE Radials<
20m Speaker Wire Linkable Dipole
![tripod](images/speaker_wire_antenna.jpg)
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](images/bottle_coils.jpg)
coils wound on small plastic bottles
2.575" dia x 1.725" long x 23 turns = 30.4 μH
![dipole](images/short_80m_dipole.jpg)
via K7MEM Short Dipole Calculator
Coil-Shortened Dipole Antenna Calculator
Coil-Shortened Vertical Antenna Calculator
Coil Inductance Calculator
Check out my books
for more good POTA info
57,000 QSOs and counting! |
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