response to correspondance ref no 4711

0237-EX-PL-2006 Text Documents

Advanced Navigation & Positioning Corp.

2007-02-26ELS_79848

RESPONSE TO REQUEST FOR INFORMATION FCC FILE NO. 0237-EX-PL-2006 REFERENCE NO. 4711 February 7, 2007 Originator: John Church Approver: ANPC Confidential and Proprietary This document is UNCONTROLLED after it is printed-- Verify Currency prior to use

Transponder Landing System Date Deleted: Date Inserted: Date Deleted: 2/26/20072/26/20072/8/200 7  Advanced Navigation and Positioning Corporation, 2006 All Rights Reserved 11 Third Street, Hood River, OR 97031 ANPC Confidential and Proprietary This document is UNCONTROLLED after it is printed-- Verify Currency prior to use Page 2 of 6

Transponder Landing System 2/26/2007 Deleted: 2/26/2007 Inserted: 2/26/2007 Deleted: 2/8/2007 TABLE OF CONTENTS SECTION 1: INTRODUCTION .....................................................................................................4 1.1 Purpose...............................................................................................................................4 1.2 Background.........................................................................................................................4 1.3 Operational Description ......................................................................................................4 SECTION 2: REQUESTED PARAMETERS.................................................................................5 2.1 Peak Envelope Power (PEP) ..............................................................................................5 2.2 Type of Antenna..................................................................................................................5 2.3 Transmit Antenna Gain .......................................................................................................5 2.4 Site Elevation ......................................................................................................................5 2.5 Antenna Height Above Ground ...........................................................................................5 2.6 Antenna Polarization...........................................................................................................5 2.7 Antenna Orientation ............................................................................................................6 Deleted: 5 2.8 Pulse Repetition Rate (PRR) ..............................................................................................6 2.9 Pulse Characteristics ..........................................................................................................6 2.10 Sector Blanking.................................................................................................................6 2.11 Radius of Operations ........................................................................................................6 2.12 Technical Operation Description.......................................................................................6 2.13 Use of 1090 MHz Transmissions ......................................................................................6 2.14 SSR 1030 MHZ Modes Utilization ....................................................................................6 ANPC Confidential and Proprietary This document is UNCONTROLLED after it is printed-- Verify Currency prior to use Page 3 of 6

Transponder Landing System Date Deleted: Date Inserted: Date Deleted: 2/26/20072/26/20072/8/200 7 SECTION 1: INTRODUCTION 1.1 Purpose This paper was prepared to address a request for more information in support of application for a FCC transmit license for the Transponder Landing System (TLS) installed at the Columbia Gorge Regional Airport in Dallesport, WA. The purpose of this license application is to facilitate the development and demonstration of the Transponder Landing System technology. FCC File Number: 0237-EX-PL-2006 Confirmation Number: EL805454 Reference Number: 4711 1.2 Background Advanced Navigation & Positioning Corporation (ANPC) uses its TLS installation at the Columbia Gorge Regional Airport for engineering and testing, as well as demonstration. For this purpose, ANPC has been renewing FCC STA’s for the site since 1998. Last fall, Don Nellis, FAA Spectrum Management, recommended that ANPC apply for a license to eliminate the need to renew the STA every 6 months. 1.3 Operational Description The TLS uses ground based equipment to produce a high accuracy track of aircraft equipped with Mode A transponders. The TLS can then broadcast ILS-like guidance to provide a Category I instrument approach for that aircraft. The system is only interrogating (1030 MHz) and broadcasting VHF and UHF signals once an approach operation has been initiated. After the approach operation has completed the system transitions to Standby mode and is idle. ANPC Confidential and Proprietary This document is UNCONTROLLED after it is printed-- Verify Currency prior to use Page 4 of 6

Transponder Landing System 2/26/2007 Deleted: 2/26/2007 Inserted: 2/26/2007 Deleted: 2/8/2007 SECTION 2: REQUESTED PARAMETERS Formatted: Bullets and Numbering 2.1 NGT Numbers 108.35 NG T070155 Formatted: Font: (Default) Times New Roman, 12 pt 333.95 NG T070156 1030 NG T050070 Formatted: Adjust space between Latin and Asian text, Adjust space 1090 NG T050071 between Asian text and numbers Formatted: Normal Formatted: Bullets and Numbering 2.2 Peak Envelope Power (PEP) • VHF input 2 W P.E.P. • UHF input 5 W P.E.P. Formatted: Bullets and Numbering 2.3 Type of Antenna • VHF is Poynting Innovations Localizer Antenna with Monitor • UHF is Poynting Innovations Glide Slope Antenna with Monitor • Interrogator (1030 MHz) is DBs Systems 610 DME. • Cal/BIT (1090 MHz) is DBs Systems 610 DME. Formatted: Bullets and Numbering 2.4 Transmit Antenna Gain • VHF: 4 dBi. Antenna is highly directional with beamwidths ± 35º azimuth, 1º to 7º vertical. • UHF: 7 dBi. Antenna is highly directional with beamwidths ± 8º azimuth, 1º to 7º vertical. • Interrogator (1030 MHz): 6.3 dBi. Antenna is highly directional with beamwidths ± 35º azimuth, 1º to 20º vertical. • Cal/BIT (1090 MHz) : 6.3 dBi. Antenna is highly directional with beamwidths ± 35º azimuth, 1º to 20º vertical. Formatted: Bullets and Numbering 2.5 Site Elevation The site is at 240 feet MSL Formatted: Bullets and Numbering 2.6 Antenna Height Above Ground • VHF: 27’ • UHF: 10’ 5” • Interrogator: 4’ • Cal/BIT: 4’ Formatted: Bullets and Numbering 2.7 Antenna Polarization • VHF: Horizontal • UHF: Horizontal • Interrogator: Vertical ANPC Confidential and Proprietary This document is UNCONTROLLED after it is printed-- Verify Currency prior to use Page 5 of 6

Transponder Landing System Date Deleted: Date Inserted: Date Deleted: 2/26/20072/26/20072/8/200 • Cal/ BIT: Vertical 7 Formatted: Bullets and Numbering 2.8 Antenna Orientation The interrogator and UHF, VHF directional antennas are oriented towards 88ºT. The directional cal/BIT antenna is ~500 feet in front of the system and oriented toward 268ºT. Formatted: Bullets and Numbering 2.9 Pulse Repetition Rate (PRR) The PRR does not exceed 10 Hz. The system is not interrogating at all when it is not providing guidance to an aircraft. Formatted: Bullets and Numbering 2.10 Pulse Characteristics • The interrogator transmits P1, P3 and an optional P2 pulses with a pulse width of 0.8 ųs. • The cal/BIT transmits a single pulse with a pulse width of 0.45 ųs. Formatted: Bullets and Numbering 2.11 Sector Blanking This product is directional and does not incorporate sector blanking. Formatted: Bullets and Numbering 2.12 Radius of Operations The system is fixed based. Formatted: Bullets and Numbering 2.13 Technical Operation Description 2.14 Use of 1090 MHz Transmissions During a cycle, the cal/BIT transmits a single pulse on 1090 MHz. The cal/BIT antenna is located about 150 meters in front of the receive arrays. This pulse is used as a reference signal. Formatted: Bullets and Numbering 2.15 SSR 1030 MHZ Modes Utilization This equipment currently utilizes an interlacing of Modes 3A and 3C. Utilization of Mode S is in the future development path. ANPC Confidential and Proprietary This document is UNCONTROLLED after it is printed-- Verify Currency prior to use Page 6 of 6


Document Created: 2007-02-26 16:53:51
Document Modified: 2007-02-26 16:53:51
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