According to Tim (K5OHY), if you want a HF antennas that is “simple, versatile, and (produces) great results”, build a multiband doublet antenna.
In this video, Tim explores the pros and cons of the “classic” doublet antenna.
After taking us through the antenna build, Tim deploys the doublet for a QRP activation with excellent results.
If you can’t see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=eSS1dw3e5Oc
Thanks for joining us today.
Russ (KH6JRM/AL0HA).
Here are some comments from Tim (K5OHY):
I cover the advantages of a multiband doublet, show some modeling, and then deploy it for a QRP activation.
STL files used
Doublet Center :
https://www.thingiverse.com/thing:703…
Doublet Center:
https://www.thingiverse.com/thing:437…
Ladder-line spacer (25 mm):
https://www.thingiverse.com/thing:703…
Doublet info:
Cebik, W4RNL — All-Band Doublet (PDF):
https://webclass.org/k5ijb/antennas/1…
Cebik — “Suppose I Could Have Only One Wire Antenna” (44′ Doublet):
http://www.antentop.org/w4rnl.001/ale…
De-Mystifying Dipoles and Doublets:
http://gnarc.org/wp-content/uploads/T…
KV5R ladder line:
https://kv5r.com/ham-radio/ladder-line/
Timestamps
00:00 Intro
03:30 Advantages of a Doublet
10:30 Modeling
14:05 Deploying
17:56 Activation
24:11 Activation Results
25:38 RBN Spots by Band
28:32 Conclusion