Success! 20m and 40m on same element - Amazing Result!
The placement of a coil on an element affects the third harmonic. If you can work out exactly where to put this coil, we can then force a harmonic on almost any band you like. In this example we have made a compact 40m antenna of only 6.5m long and then made 20m to work on the third harmonic with very little loss. See what you think. Callum. • Antenna Secrets: The Strange World of Coil... - Last Video Discussing this Concept • Solving the Mystery of a Shorter Antenna -... - End Effect Discussion • Custom SkyLab StarDuster CB Tribander: The... - The Custom Hybrid SkyLab https://youtube.com/live/x-za2pjmNjE - Live Stream where I Switched Between
▶︎
HAM RADIO DUAL BAND 20m/40m Vertical Antenna You Can Build.
▶︎
3 Rules - Quick Tip - Radials for Ground Mounted Vertical Antennas
▶︎
Ham Radio. Portable Operation. Preparations. Tripod Tent Pegs. #hamradio
▶︎
Surprising! Ham Radio Vertical Antennas - Are Longer Antennas Better?
▶︎
HAM RADIO EFHW Mystery Coil. Do you need it and is there a better alternative?
▶︎
EFHW VS VERTICAL: Which Antenna Wins for Portable Ops?
▶︎
QSO Director - Is This the Future of Ham Radio Logging?
▶︎
HAM RADIO: Top Band Vertical Small Garden /Back Yard Antenna - 160M band DX Commander
▶︎
Our Obsession with Ham Radio Antennas
▶︎
How to tune a 40M Loading Coil for the Poor Man's POTA PERformer
▶︎
Making a shortened 40m Vertical - DX Commander Rapide (old one by request)
▶︎
When People Tie the WRONG Antenna Knots!
▶︎
Antenna Secrets: The Strange World of Coils and Antennas
▶︎
HAM RADIO Small Garden 80m-10m 5-Band Antenna. Self-Build. No ATU needed. Read notes below:
▶︎
Ham Radio: Easy Portable / Small Space Vertical DX Antenna. The Rybakov Antenna
▶︎
MY DIY 20-40 meter Air Wound Coil
▶︎
160m antenna in a suburban lot
▶︎
The Truth About PL259 vs N-Type Connectors
▶︎
Build an EASY 10 Meter (28 MHz) Vertical Antenna for DX!
▶︎