Dr L.B Cebik [W4RNL] sk – Lower HF Antennas

Lower HF Antennas [Mainly 30m and below]

3 Wires – The Whole World
5/8-Wavelength Mystique
30m 3 Element Wire Yagi
40 + 30 = 50 (Not 70)
40-Meter Wide-Band 3-Element Quad Designs
80 and 40m Dual-band Quad
80m Dipoles and Inverted V’s
80m Half Length Vertical Monopoles Best Loading Methods – Part1 – Goals and Methods
80m Half Length Vertical Monopoles Best Loading Methods – Part2 – Baseline Data
80m Half Length Vertical Monopoles Best Loading Methods – Part3 – Base Loading
80m Half Length Vertical Monopoles Best Loading Methods – Part4 – Top and Zig-Zag Loading
80m Half Length Vertical Monopoles Best Loading Methods – Part5 – Conclusions
80m Half Length Vertical Monopoles Best Loading Methods – Part6 – Descriptions of Models
80m Half Length Vertical Monopoles Best Loading Methods – Summary
80-Meter Wire LPDAs
160m vs 80m OCF Antennas
160-Meter Vertical Arrays – Appreciating Conductivity and Permittivity
160-Meter Vertical Arrays – Baseline Data
160-Meter Vertical Arrays Part 3 – Complex Radial Systems
160-Meter Vertical Arrays Part 4 – A Potpourri of 160m Vertical Antennas and Modelling Issues
160-Meter Vertical Arrays Part 5- Multiple Ground Qualities
A 40m Vertical Moxon
A 40-Meter Star
A Modelling Perspective on Ground Planes
A Triangle for the Short Vertical Operator
All-Band Use of Horizontal-Plane Loops
All-Band Use of Vertical-Plane Deltas
An 80-Meter Log Periodic Monopole Array [LPMA] Part 1
An 80-Meter Log Periodic Monopole Array [LPMA] Part 2
Back to Basics – A Primer for new QRP Operators
Back-Up Antenna for 80-20 Meters
Building a QRP Field Vertical
Closed and Interrupted Loop Antennas
Counterpoises – ‘Busted’
Counterpoises, Capacity Hats and Comparing Antennas Suspected of Feedline Radiation
Cutting Formulas – Most are Wrong!
Dipole Curtain Arrays
Do the VOMBA!
Full and Shrunken 40-Meter Quads
Half Length Dipoles for 40m – Introduction
Half Length Dipoles for 40m – Part1
Half Length Dipoles for 40m – Part2
Half Length Dipoles for 40m – Part3
Half Length Dipoles for 40m – Part4
Half Wave Interrupted Loops – Evolution and Uses
Horizontal Heights and Sound Bites – Notes for NVIS Antennas
Horizontal Wire Loops
Horizontally Oriented – Horizontally Polarised – Large Wire Loops
How Much Coaxial Cable – A Case Study
Introducing the All-Band Doublet
Just Tall – Principles of Portable Antennas
Long-Wire Antennas Part1 – Center Fed and End Fed Unterminated Long Wires
Long-Wire Antennas Part2 – Terminated End-Fed Directional Long Wires
Long-Wire Antennas Part3 – V Beams and Arrays
Long-Wire Antennas Part4 – Rhombic Arrays and Beams
Long-Wire Antennas Part5 – Multi-Band Multi-Wire and Multi-Element Rhombics
Lower HF Wire Beams
Modelling the T2FD
Models with Buried Radial Systems
Multi-Band Inverted-V
Notes on Antenna Bandwidth
Notes on HF Discone Antennas
Notes on NVIS Antennas Part1 – Background and Basics
Notes on NVIS Antennas Part2 – Dipoles Loops and V’s
Notes on NVIS Antennas Part3 – Dipoles Loops and V’s with Reflectors
Notes on NVIS Antennas Part4 – Dipoles – Inverted V’s – Loops and Doublets
Notes on NVIS Antennas Part5 – Fixed Three-Band Antennas
Notes on NVIS Antennas Part6 – Special Purpose Antennas
Notes on NVIS Antennas – Introduction
Notes on Wide-Band Multi-Wire Folded Dipoles Part1
Notes on Wide-Band Multi-Wire Folded Dipoles Part2
NVIS and ALE – Preliminary Studies
On Ground Planes Part1 – Preliminary Studies
On Ground Planes Part2 – Capacity Hats
On Ground Planes Part3 – Planes in Space
On Ground Planes Part4 – Down to Earth Verticals
On Ground Planes Part5 – Regional Differences
Pursuing the (Nearly) Perfect Parasitic Vertical Array for 160 Meters Part1
Pursuing the (Nearly) Perfect Parasitic Vertical Array for 160 Meters Part2
Resurrecting the Y-Doublet
Screening 40-Meter Vertical Arrays
SCV [Self Contained Vertically] Polarised Wire Antennas – Open Ended Cousins
SCV [Self Contained Vertically] Polarised Wire Antennas – Shorties, Double Wides and Twins
SCV [Self Contained Vertically] Polarised Wire Antennas – The Bruce Array
SCV [Self Contained Vertically] Polarised Wire Antennas – The Delta Branch
SCV [Self Contained Vertically] Polarised Wire Antennas – The Group Picture
SCV [Self Contained Vertically] Polarised Wire Antennas – The Rectangular Division
Short Beams and Operating Bandwidth
Short Folded Monopoles – Extended Applications
Short Folded Monopoles – Some Basic Properties
Some ABCs of A-B-C – Notes on Triangles of Doublets
Some Facts of Life About Modelling 160m Vertical Arrays – Part 1 [W4RNL – NCJ Article]
Some Facts of Life About Modelling 160m Vertical Arrays – Part 2 [W4RNL – NCJ Article]
Some Facts of Life About Modelling 160m Vertical Arrays – Part 3 [W4RNL – NCJ Article]
Some Facts of Life About Modelling 160m Vertical Arrays – Part 4 [W4RNL – NCJ Article]
Some Facts of Life About Modelling 160m Vertical Arrays – Part 5 [W4RNL – NCJ Article]
Straightening Out the Inverted L
Substituting Wire Elements in Lower HF Arrays
Terminated Wide-Band Folded Dipole
The 40-Meter 3-Way Special – A Triangular Vertical Array
The 40-Meter Bobtail Curtain as An All-Band Wire Antenna
The All-Band Center-Fed Inverted-L
The All-Band Doublet – 10 Questions
The G5RV Antenna System Re-Visited Part 1 – The G5RV on 20m
The G5RV Antenna System Re-Visited Part 2 – The G5RV on all HF Bands
The G5RV Antenna System Re-Visited Part 3 – The Almost No ATU Antenna
The IL-ZX Antenna for 40m
The Insulated Radial Question
The Isolated Off Center Fed Antenna
The Pseudo Brewster Angle Revisited
The Slippery Sloper Argument
The Zig-Zag Dipole-Doublet
To Trap or Not to Trap – That is the Question
Top 5 Back Yard Multiband Wire Antennas
Triangulating Bobtail Curtains
Understanding the CCD [Controlled Current Distribution Antenna]
Unfolding the Story of the Folded Dipole
Vertical Dipoles and Ground Planes
Vertically Radiating Horizontal Antennas
Verticals without Vertigo
Voltage Feeding SCV Loops
What is a Folded Monopole
Where Do I Hang My Hat – Capacity Hats
Wide-Band 40-Meter Yagis Part 1 – Standard and Non Standard Designs
Wide-Band 40-Meter Yagis Part 2 – Alternative 4 Element Designs
Wide-Band 40-Meter Yagis Part 3 – A 3 Element Wire Design
Windoms
Wire Beam for 80 and 75 Meters
Wire Size and Material
Wi’re we are using Wire
Your First 160-Meter Antenna