Ham Radio Tech Pages & Downloads

 

Feb 2023 – Understanding Antennas …and the Antenna System

Mar 2023 – Antennas You’ve Never Heard Of (probably) Part II 

Apr 2023 – Antenna Measurement Tools & Accs.

May 2023 – A Random Thought

Jun 2023 – Get Ready for WRTC

Jul 2023 – Effective Aperture Ramblings

Aug 2023 – Madison Electronics Supply

Sep 2023 – Conductors for Grounding

Oct 2023 – Gain – An Observation

Nov 2023 – A Case for Dayton Amateur Radio Nirvana

Dec 2023 –FT8 – A Change of Attitude

Jan 2022 – The EFHW – Things to Consider

Feb 2022 – Re-learning Something Old – Baluns and Chokes

Mar 2022 – Advances in Antenna Technology

Apr 2022 – Two Silent Keys – Silent Too Soon

Jun 2022 – Tesla – Mobile Install

Aug 2022 – 486

Sep 2022 – WSPR – A Whisper into Aether

Oct 2022 – A Gander at Coax Connectors

Nov 2022 – Antenna Development Challenge – A Heads Up

Dec 2022 – Antenna Guru’s

Jan 2021 – A Brief Look, Way Back, in Amateur Radio

Feb 2021 – Before the Nano VNA….

Mar 2021 – Return Loss(?)

Apt 2021 – NEC and The Smith Chart

May 2021 – SWR — Last Gas For Cycle 25 – A plea for more 5%’ers

Jun 2021 – The Donut Hole — Explaining the Propagation during the Rag Chew Net

Jul 2021 – – Software Tools for your Feedline (Repeat of Feb 2016)

Aug 2021 – Ground – Friend or Foe ?

Sep 2021 – The Fun of Troubleshooting

Oct 2021 – SWR – Scary Watt Readings ……..Hey, it’s Halloween. So, trick or treat!

Nov 2021 – Easy(and Free) HF Waterfall Display

Dec 2021 – The Radio Hotel – A Complete Index — 2014 thru 2021

Jan 2020 – Antenna Efficiency Repeat June 2016???

Feb 2020 – Working with Aluminum ……using an element to build elements

Mar 2020 – Wire – Simply Wire

Apr 2020 – Amazing Things We Take for Granted

May 2020 – Antenna Insulators — The Work Horse of Different Colors

Jun 2020 – A Lesson Learned (and Well Taught)–EFHW

Jul 2020 – A Fool for the (noisy) City — A cursory look at ‘receive only’ antennas

Aug 2020 – The Amazing Depths of Radio and……Dedicating yourself to your hobby

Sep 2020 – SWR – The Coax Z to Antenna Z Disparity

Oct 2020 – (NP) the Path to Radial-less Verticals

Nov 2020 – Chokes, Baluns and Transmission Line Transformers

Dec 2020 – Looking back at 2020

Jan 2019 – Dissecting Series #3 Coax Elements Part 2

Feb 2019 – Small Antennas – Mag Loops Part 1

May 2019 – Small Antennas – Mag Loops Part 2

Jun 2019 – Field Day — A Curious, Ham Radio Confluence Field Day Antennas and Rigs

Jul 2019 – KK5W Field Day Antennas

Aug 2019 – Designing a Coil-Loaded (short) Dipole Part 1

Sep 2019 – Building a Coil-Loaded (short) Dipole Part 2

Oct 2019 – Multi-banding Methods

Nov 2019 – Dissecting Series #4 What’s Inside the SteppIR Vertical?

Dec 2019 – All I want for Christmas…..

Jan 2018 – Patented Antennas

Feb 2018 – The Saga of the Full Wave loop Part 1

Apr 2018 – Part 2 — Rectangular and Square Loops – The Quad

May 2018 – Part 3 – Triangular Loops – The Delta Loop (Note: Part 4 not Published)

Jun 2018 – Part 5 – Esoteric Loops of Various Shapes and Sizes – Series Summary

Jul 2018 – The CCD Antenna Controlling Standing Wave Current

Aug 2018 – The Impedance of Space

Sep 2018 – The Illusive Wet Noodle and 200 Degrees

Oct 2018 – Antennas-“Where the Rubber Meets the Road”

Nov 2018 – Gain – The Final Frontier

Dec 2018 – Dissecting Series #3 Coax Specs Part 1

Jan 2017 – Diversity – A Deployable Advantage

Feb 2017 – Dissecting Series #1 – Inside Those Tri-band Yagi Traps

Mar 2017 – Two Antennas – What’s Old is New Again – The Hexbeam and the Moxon

Apr 2017 – AA0ST and Antennas Thru the Looking Glass

May 2017 – K3LR Tim Duffy

Jun 2017 – Tools for the Antenna Information Junkie

Jul 2017 – Dissecting Series # 2 – Inside the Cushcraft R Series Verticals Black Box

Aug 2017 – What Makes the Best Antenna?

Sep 2017 – HF Receiver Basics – S9 Band Noise

Oct 2017 – Broad-banding – Nittany Lions Style

Nov 2017 – Recent Trends in Yagi-Uda Design

Dec 2017 – Life’s Standing Wave

Jan 2016 – Hooking Up with RF Connectors

Feb 2016 – Software Tools for your Feedline

Mar 2016 – Antenna Origins Part 1

Apr 2016 – Antenna Origins Part 2 The Audion Tube

May 2016 – Antenna Origins Part 3 Yagi and Uda and Beverage, Oh My!

Jun 2016 – Antenna Efficiency – KD5QPX

Jul 2016 – What’s in QST? – Antenna Wise

Aug 2016 – 50 Ohm, Direct Fed Yagi’s

Sep 2016 – VHF Antennas from Thumbtacks and Wires

Oct 2016 – Antennas for the 3910 Rag Chew Net

Nov 2016 – The Skinny on Wire

Dec 2016 – Antennas You’ve Never Heard of (probably)

Jan 2015 – Your Ham Radio Hobby – What to Do in 2015

Feb 2015 – The Antenna Part 1 – The Introduction

Mar 2015 – The Antenna Part 2 – The Recipe

May 2015 – The Antenna Part 3 – Resonance and Standing Waves and Feed Z (Oh My)

Jun 2015 – The Antenna Part 4 – Polarization and Height Above Ground

Jul 2015 – The Antenna Part 5 – Gain, angles and Patterns – It’s So E-Z

Aug 2015 – The Antenna Part 6 – Verticals – How Low (angle) Can You Go?

Sep 2015 – The Antenna Part 7 – Antennas Shortening – Let’s Get Loaded

Oct 2015 – The Antenna Part 8 – Getting all Choked Up About Feeding

Nov 2015 – The Antenna Part 9– C’est Tout! References for Learning More

Dec 2015 – Analyzing Antenna Analyzers

Apr 2014 – Four Whys of our Antenna Systems

May 2014 – The Standing Wave- Part 1

Jun 2014 – The Standing Wave Ratio-Part 2

Jul 2014 – Measuring SWR-Part 3

Sep 2014 – Antenna Bandwidth and SWR-Part 4

Oct 2014 – Matching within the Antenna System-Part 5

Nov 2014 – Reflected Reflections-Part 6

Dec 2014 – SWR/Matching and Learning-Part 7

Other Great Tech Papers

A 17M delta loop for 20-10M
by Larry A Jacobson, K5LJ

BLT-26 and HSMM MESH — Flight Results

Meeting presentation  on Foxhunting

Meeting presentation  I Have My License.Now What?