K9SO Presentations

Articles, publications, and club presentations over the years

A Taste of Field Day Article

QST article by K9SO: 

“Repair and Calibrate Those Bird Wattmeter ‘Slugs’ with Confidence”

Published in QST October 2009 issue

Cannot publish here due to copyright restrictions

QEX article by K9SO:

QEX is the primary technical magazine published by the American Radio Relay League

“Using Gain Probablility to Evaluate Antenna Performance”       Published in Oct/Nov 2007 issue

Cannot publish here due to copyright restrictions

“How Do You Spell VNA?

 A “Fred Talk” video explaining what all those Vector acronyms really mean:

  VNA Presentation  (link)

“Introduction to Antenna Models” 

A “Fred Talk” video

  Introduction to EZNEC Antenna Modeling (link)

“Ham Radio Remote Control” 

A video presentation made to the Vienna Wireless Society

Presentation on  2/18/2025 to FLARC in Madison, Wi 

 HF REMOTE CONTROL 2025 (link)

“The Decibel Explained”  

A slide presentation explaining the meaning and history of the BEL unit of power measurement. 

   The DECIBEL Explained (link)

“Five Bird Wattmeter Projects for a Lazy Afternoon” 

“Protect Your Rigs and Your Life with a Yankee Yanker”  

Co-authored with KC9JOB about an antenna disconnect system.

 

“Lightning Protection” 

a common sense review slide presentation.

    Lightning Protection Presentation (link)

Disconnect IV

Presentation on contruction of Disconnect IV. Physically and automatically disconnect your antenna coax lines and up to 30 rotor control leads. The ultimate in lightning protection:

   Disconnect IV (link)