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EH Antenna. NATIONAL ASSOCIATION OF BROADCASTERS LAS VEGAS APRIL 2004 BY Ted Hart CEO George Jones, President, AM Broadcast Division. What Is An EH Antenna?. It is a revolutionary concept that allows small antennas to outperform large antennas.
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EH Antenna NATIONAL ASSOCIATION OFBROADCASTERSLAS VEGASAPRIL 2004BYTed Hart CEOGeorge Jones, President, AM Broadcast Division EH ANTENNA SYSTEMS
What Is An EH Antenna? It is a revolutionary concept that allows small antennas to outperform large antennas. EH ANTENNA SYSTEMS
EH Antenna – An ExampleLocated at Eatonton, Georgia EH ANTENNA SYSTEMS
What Are The Defining ParametersOf An EH Antenna?___________________________________________________________________________________________________ • Small Size EH ANTENNA SYSTEMS
What Are The Defining ParametersOf An EH Antenna?___________________________________________________________________________________________________ • Small Size • + Low Height EH ANTENNA SYSTEMS
What Are The Defining ParametersOf An EH Antenna?___________________________________________________________________________________________________ • Small Size • + Low Height • + No Radials Required EH ANTENNA SYSTEMS
Whole Band – 10 KW EH ANTENNA SYSTEMS
High Band – 1 KW EH ANTENNA SYSTEMS
What Are The Defining ParametersOf An EH Antenna?___________________________________________________________________________________________________ • Small Size • + Low Height • + No Radials Required • + Broad Bandwidth EH ANTENNA SYSTEMS
What Are The Defining ParametersOf An EH Antenna?___________________________________________________________________________________________________ • Small Size • + Low Height • + No Radials Required • + Broad Bandwidth • + High Efficiency EH ANTENNA SYSTEMS
What Are The Defining ParametersOf An EH Antenna?___________________________________________________________________________________________________ • Small Size • + Low Height • + No Radials Required • + Broad Bandwidth • + High Efficiency • + Low EMI EH ANTENNA SYSTEMS
What Are The Defining ParametersOf An EH Antenna?___________________________________________________________________________________________________ • Small Size • + Low Height • + No Radials Required • + Broad Bandwidth • + High Efficiency • + Low EMI __________________________________________________________________________________________________________ • = High Economic Value For The Broadcaster EH ANTENNA SYSTEMS
The Number 1 Question,does It Work? EH ANTENNA SYSTEMS
The Evolution Of The Star EH Antenna EH ANTENNA SYSTEMS
The Evolution Of The Star EH Antenna EH ANTENNA SYSTEMS
The Evolution Of The Star EH Antenna EH ANTENNA SYSTEMS
RX EH ANTENNA SYSTEMS
The Evolution Of The Star EH Antenna EH ANTENNA SYSTEMS
Corrected Impedance EH ANTENNA SYSTEMS
DPH Photo EH ANTENNA SYSTEMS
The Evolution Of The Star EH Antenna EH ANTENNA SYSTEMS
The Evolution Of The Star EH Antenna EH ANTENNA SYSTEMS
The Evolution Of The Star EH Antenna EH ANTENNA SYSTEMS
The Evolution Of The Star EH Antenna EH ANTENNA SYSTEMS
The Evolution Of The Star EH Antenna EH ANTENNA SYSTEMS
Web Site • http://eh-antenna.com/AM_Broadcast.htm • http://eh-antenna.com/amateur.htm • http://eh-antenna.com • ted@eh-antenna.com • 20-Meter Star Antenna > • (706)473-3360 EH ANTENNA SYSTEMS
EH Antenna Analysis Program EH ANTENNA SYSTEMS
EH Antenna Analysis Program EFFECT OF LOADING ON THE EH ANTENNA Q=XL/R=F0/BW Therefore: BW = R* F0 /XL Example: If BW increases by 10, then R increases by 10 - - - - - - - - - h = RR/(RR+RL) Example: For RR=5 and RL = 0.5, then h =90.9% For RR=50 and RL = 0.5, then h =98.9% The change in Efficiency = 0.4 dB EH ANTENNA SYSTEMS
EH Antenna Analysis Program EH ANTENNA SYSTEMS
EH Antenna Analysis Program EH ANTENNA SYSTEMS
EH Antenna Analysis Program EH ANTENNA SYSTEMS
Rendering Of Phasing Coil EH ANTENNA SYSTEMS
EH Antenna Analysis Program EH ANTENNA SYSTEMS
RenderingOf Tuning Coil EH ANTENNA SYSTEMS
EH Antenna Analysis Program EH ANTENNA SYSTEMS
Rendering Of Source Coil EH ANTENNA SYSTEMS
EH Antenna Analysis Program EH ANTENNA SYSTEMS
EH Antenna Analysis Program EH ANTENNA SYSTEMS
“L” Network • Mounted at the base of the tower. • Enclosed in NEMA housing. • Enclosure size to be determined by: • Transmission line impedance. • Transmitter power. EH ANTENNA SYSTEMS
EH Antenna Analysis Program EH ANTENNA SYSTEMS
EH Antenna Economics EH ANTENNA SYSTEMS
EH Antenna Economics EH ANTENNA SYSTEMS
Bandwidth Vs. Frequency EH ANTENNA SYSTEMS
