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a collection of photos by Eric Chesak

www.ericchesak.com

  1. Galleries
  2. Planes

Virtual Radar

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  • 2003 EUROCOPTER AS 350 B2 - N204TX

    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 Northeast El Paso

  • N204TX Eurocopter AS350 in East El Paso

    N204TX Eurocopter AS350 in East El Paso

  • Untitled photo
  • N812FS - 2008 PILATUS AIRCRAFT LTD PC-12

    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

    N812FS - 2008 PILATUS AIRCRAFT LTD PC-12

  • 12 Element Co-Linear Antenna Range Plot

    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

    4-element Co-linear antenna range plot

  • Theoretical Range Plot - Antenna at ground level

    Theoretical Range Plot - Antenna at ground level

  • Theoretical Range Plot - Antenna at 20' off ground

    Theoretical Range Plot - Antenna at 20' off ground

  • Range Plot - 4 Element Colinear with LNA

    Range Plot - 4 Element Colinear with LNA

  • Anomalous / Spoofed 400 Mile Reception

    Anomalous / Spoofed 400 Mile Reception

    25 mile range circles

  • Dipole Antenna Range Plot

    Dipole Antenna Range Plot

  • Dipole Antenna for 1090 MHZ

    Dipole Antenna for 1090 MHZ

  • Wire Quarter Wave Range Plot

    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

    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

    First 1/4 Wave Machined Antenna Range Plot

    25 miles per ring

  • First machined 1/4 wave with LNA

    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

    Wire Quarter Wave Antenna with LNA

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

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

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

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

Unless otherwise noted, all Photos, Images and Videos are Copyright C. Eric Chesak
Unauthorized use is prohibited

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    12 Element Co-Linear Antenna Range Plot
    4-element Co-linear antenna range plot
    Theoretical Range Plot - Antenna at ground level