2003 EUROCOPTER AS 350 B2 - N204TX

TEXAS DEPARTMENT OF PUBLIC SAFETY AUSTIN , TX, US TURBOMECA ARRIEL 1D1 (Turbo-shaft) Horsepower: 712

N204TX Eurocopter AS350 in Northeast El Paso

N204TX Eurocopter AS350 in East El Paso

N812FS - 2008 PILATUS AIRCRAFT LTD PC-12

Owner: FLIR SYSTEMS AVIATION LLC WILSONVILLE , OR, US (Corporation) Airworthiness ClassStandard/Normal Serial Number: 1077 Engine: P&W CANADA PT6A-67P (Turbo-prop) Horsepower: 1272

N812FS - 2008 PILATUS AIRCRAFT LTD PC-12

12 Element Co-Linear Antenna Range Plot

Circles are 20 statute miles DIY colinear antenna (12 element + whip) Hanging on office wall

4-element Co-linear antenna range plot

Theoretical Range Plot - Antenna at ground level

Theoretical Range Plot - Antenna at 20' off ground

Range Plot - 4 Element Colinear with LNA

Anomalous / Spoofed 400 Mile Reception

25 mile range circles

Dipole Antenna Range Plot

Dipole Antenna for 1090 MHZ

Wire Quarter Wave Range Plot

Despite rough wire construction and the use of a UHF fitting, this antenna performed quite well.

Original/first tested quarter wave antenna

This test antenna also used UHF fitting, not ideal for microwave frequencies

First 1/4 Wave Machined Antenna Range Plot

25 miles per ring

First machined 1/4 wave with LNA

This antenna used a UHF fitting, which is not ideal for microwave frequencies.

Wire Quarter Wave Antenna with LNA

Machined Second Generation 1/4 wave with LNA and N fitting

Machined 1/4 wave with N-fitting - Range Plot