Downloads


Benjamin F. Dawson III - Antenna Base Region Geometry And Voltage Sampling Techniques For Moment Method AM Directional Antenna Proofs

Stephen S. Lockwood, Carl T. Jones, Jr., and Matthew W. Folkert - Review and Analysis of Medium Wave Directional Antenna Sample Systems

Benjamin F. Dawson III and Stephen S. Lockwood - Revisiting Medium-Wave Ground-System Requirements

Benjamin F. Dawson III - The Slant Wire Shunt Fed Monopole: A Neglected but Invaluable Technique

Benjamin F. Dawson III - Measurements Necessary for Moment Method Proofs of Performance

James B. Hatfield, Stephen S. Lockwood, and Richard R. Strickland - RFR: Fads and Fallacies

Benjamin F. Dawson III - How to Measure Sample Line Length and Characteristic Impedance

H&D Tri-Fold Brochure

H&D 8.5 x 11 Brochure

James B. Hatfield - Magnetic Fields from Displacement Current Densities Generated by the Crossed Field Antenna

James B. Hatfield - Cellular Towers Exposure Levels and Public Health - Reprint from EMF Health Report

James B. Hatfield & Richard A. Tell - Michaelson Research Conference The Other Side of RF Measurements Power Point Slides

James B. Hatfield - Computer Simulation of AM Radio Antenna Systems - Reprint from NAB Engineering Handbook

James B. Hatfield - A Modern Method of Predicting AM Tower Vertical Radiation

James B. Hatfield - A Study of AM Tower Base Impedance

James B. Hatfield - Improved Night Interference Protection for AM Stations

Samuel Milham, James B. Hatfield, Richard A. Tell - ELF Magnetic Field from Spinning Steel-Belted Radial Tires: Implications for Epidemiological Studies

James B. Hatfield - Nearly Seven Years of Success of Using MiniNEC for Analysis and Design of Standard Broadcast Medium Wave AM Directional Antennas

James B. Hatfield - Numerical Electomagnetic Code Analysis of AM Directional Antenna Nulls and the "Proximity Effect"

James B. Hatfield - Relationships Between Base Drives and Fields in Broadcast Medium Wave Directional Antennas

James B. Hatfield - Reciprocity and Moment Methods Applied to Predicting Radiated Emissions

James B. Hatfield - Problems With Moment Method Modeling of AM Arrays

James B. Hatfield - Relative Tower Currents and Fields in an AM Directional Array

James B. Hatfield - Verifying the Relationships Between AM Broadcast Fields and Tower Currents

J. B. Hatfield Sr - A Review of Harmonic Suppression Practices for Standard Broadcast Stations

James B. Hatfield - Problems With NIER SBE Monthly Meeting January 2003

James B. Hatfield - Puget Sound Radio History, A Personal View, SBE Expo, September 2004 Part 1

James B. Hatfield - Puget Sound Radio History, A Personal View, SBE Expo, September 2004 Part 2

Benjamin Dawson & Ron Rackely - An Inquiry into the Commission's Policies and Rules Regarding Am Radio Service Directional Antenna Performance Verification MM Docket 93-177, Power Point Slides, NAB Spring 2001

Benjamin Dawson & Ron Rackely - An Inquiry into the Commission's Policies and Rules Regarding Am Radio Service Directional Antenna Performance Verification MM Docket 93-177, Audio File (MP3), NAB Spring 2001

Ben Dawson & Ron Rackely - AM Directional Antenna Essentials NAB Spring 2002 DA System Hardware

Ben Dawson & Ron Rackely - AM Directional Antenna Essentials NAB Spring 2002 DA Essentials

Ben Dawson & Ron Rackely - AM Directional Antenna Essentials NAB Spring 2002 DA Troubleshooting

Ben Dawson & Ron Rackely - AM Directional Antenna Essentials NAB Spring 2002 DA Dealing With the FCC

Benjamin F. Dawson - SAME Design Excellence Award 2002 Presentation - IBB Cyprus Antennas System - Power Point

Benjamin F. Dawson - SAME Design Excellence Award 2002 Presentation - IBB Cyprus Antennas System - Handout

Benjamin F. Dawson & Stephen S. Lockwood - CBP IBOC Antenna Ascertainment Project PREC 2005 Handout

Benjamin F. Dawson & Stephen S. Lockwood - CBP IBOC Antenna Ascertainment Project NAB 2005 Handout

Benjamin F. Dawson - Isolation Requirements in Diplexed MW Antenna System

SAME Award

Thomas M. Eckels - FM Blanketing Interference, A Case Study of Problems and Solutions for a Typical High Power FM Station

Thomas M. Eckels - Generic RFI Handbook (For RIF Mitigation around FM Stations)

Stephen S. Lockwood & Erik C. Swanson - Basics of AM, FM and TV Allocation Seattle SBE Montly Meeting June 2002

Stephen S. Lockwood - Demonstration of Swept Frequency Techniques for AM Antenna System Measurements SBE EXPO, September 2004

Stephen S. Lockwood - So, What Have We Learned or What to do About IBOC, Alaska Broadcasters - Public Radio Meeting, November 2004

Robert Silliman - Sample Loop Equations - ERI

Watt, A.D., Hansen, P.M. - VLF/LF Corona Investigation - Tech. Doc. 2266 May 1992 NRAD

Drawing Showing Typical Installation of AM Sample Loop

Data Necessary to Perform a Site Intermodulation Study

FCC 1939 Standards of Good Engineering Practice Concerning Standard Broadcast Stations (550 1600 kc)

Eight Drawings Showing the Installation of a Standard Broadcast Ground System

Six Drawings Showing The Shielding of a Building with Wire Mesh

Drawing Showing Crona Shield for MW Tower Lighting

Austin Ring Transformer Installation Drawing

Modification of a FIM-21/41 for Measurement of High-Level Fields

Use of a FIM-21/41 for Location of Ground Radials

AM Field Strength Data Forms

H&D Instructions for AM Field Intensity Measurements, Maps and Data Sheets73.186 FCC Rules and Regulations

Vacuum Variable Capacitors - An Introduction to their Design, Rating and Installation - Comet