A Broadband Feed System for an 80 Meter Antenna System

Slide 2

Broad Objectives

W4RNL-W6NL Broadband Feed System
From the W4RNL Technical Paper

Double Dip SWR Curve
(Dipole in Free Space)
From the W4RNL Technical Paper

Practical Tips on Cutting Coax to Proper length

Distinctive Double Dip SWR Curve
For a Single NE Sloping Dipole
(N3BB Data)

NE Sloper selected as one of three sloping dipole antennas
N3BB Data

Slide 9

Slide 10

Slide 11

Slide 12

All Three Slopers Selected Together

SWR Comparison: All Major Combinations

Slide 15

Three Slopers on Hilltop

Positioning of Coax and Stackmatch Inside the 45G Tower

80 Meter Stackmatch Control Box in N3BB Shack
(Note Use of Labels Made with a Label Machine)

N3BB SO2R Operating Position Details

Detailed View, Band Decoder and Antenna Switch Box

N3BB SO2R Operating Position