questing for a multi band. check my math

[nfsus]

primary 3.55mhz
468/3.55=131.83
131.83x19.5%=25.71
131.83x80.5%=106.12
4:1 current balun
1:1 choke balun


Harmonic Frequency Wavelength
2nd harmonic 7.1 hertz 42224289.85915 meters
3rd harmonic 10.65 hertz 28149526.57277 meters
4th harmonic 14.2 hertz 21112144.92958 meters
5th harmonic 17.75 hertz 16889715.94366 meters
6th harmonic 21.3 hertz 14074763.28638 meters
7th harmonic 24.85 hertz 12064082.8169 meters
8th harmonic 28.4 hertz 10556072.46479 meters
9th harmonic 31.95 hertz 9383175.524257 meters
10th harmonic 35.5 hertz 8444857.971831 meters
11th harmonic 39.05 hertz 7677143.610755 meters
12th harmonic 42.6 hertz 7037381.643192 meters
13th harmonic 46.15 hertz 6496044.593716 meters
14th harmonic 49.7 hertz 6032041.408451 meters
15th harmonic 53.25 hertz 5629905.314554 meters

 

[BJ radionut]

OFF-CENTER FEED? 80/20?
Your numbers are very confusing as-written.

Harmonics will work with good tuner like 80/40/20/17
I have a "phased pair of Doublets" 8JK antenna

The All Band HF Doublet - 80 thru 10 Meter Ladder Line Multiband Antenna

 

[BJ radionut]

New Carolina Windom by K4IWL - Len Carson - Carolina Windom Project - New Version!

N4UJW ANTENNA DESIGN LAB - Ham Radio Antennas - Design 0r Build Your own Ham Radio Antenna

 

[BJ radionut]

https://rudys.typepad.com/ant/files/antenna_colinear_zepp.pdf

https://www.qsl.net/n4xy/PDFs/ANTs/ant_edz.pdf

 

[BJ radionut]

KF9F Revives an OCF Dual Feed Multiband Dipole

Wire Antennas

 

[nfsus]

KF9F Revives an OCF Dual Feed Multiband Dipole

Wire Antennas

So ladder line. Uh shielded ladder line. It’s a mystery! Hahahaha. Not a bad idea though.