Technical Description

0052-EX-PL-2013 Text Documents

BOEING COMPANY, THE

2013-01-30ELS_133010

GPS Re-Radiation (Re-Rad) System Technical Description Allen S. Lindsay, SR The Boeing Company Frequency Management Services Seattle, WA P.O. Box 3707 MC: 2T-22 Seattle, WA 98124-2207 206-544-6053 Office 206-662-0701 Fax Purpose for the Application The purpose of this application is to obtain a 2-year experimental license to operate a GPS re-radiation system supporting aircraft development and testing. . Why we are Applying for a License The Boeing Company would like the ability to perform functional testing of receive GPS systems inside a building in order to reduce delivery delays caused by the unavailability of GPS signals inside the facilities. Technical Description This technical description shows compliance with all NTIA items in Chapter 8.3.28. 1. Individual authorization is for indoor use only, and is required for each device at a specific site. Operation will be conducted indoors. The device information is provided in application and specific site information provided below. 2. Applications for frequency assignment should be applied for as an XT station class with a note indicating the device is to be used as an "Experimental RNSS Test Equipment for the purpose of testing GPS receivers" and describing how the device will be used. Description of operation provided in confidential portion of request and Boeing concurs to the XT station class. 3. Approved applications for frequency assignment will be entered in the GMF. Boeing concurs. 4. The maximum length of the assignment will be two years, with possible renewal. Boeing concurs. 5. The area of potential interference to GPS reception (e.g., military or contractor facility) has to be under the control of the user. The site is under Boeing’s control. 6. The maximum equivalent isotropically radiated power (EIRP) must be such that the calculated emissions are no greater than -140 dBm/24 MHz as received by an isotropic antenna at a distance of 100 feet (30 meters) from the building where the test is being conducted. The calculations showing compliance with this requirement must be provided with the application for frequency assignment and should be based on free space propagation with no allowance for additional attenuation (e.g., building attenuation.) Link budgets provided below and meet specified levels. Calculations do not allow for building attenuation. 7. GPS users in the area of potential interference to GPS reception must be notified that GPS information may be impacted for periods of time. GPS users in area will be notified. 8. The use is limited to activity for the purpose of testing RNSS equipment/systems. Use will be limited to testing RNSS equipment. 9. A "Stop Buzzer" point of contact for the authorized device must be identified and available at all times during GPS re-radiation operation of the device under any condition. Stop Buzzer information provided below.

Locations The GPS Re-Radiation systems will be installed in the following location: 47-25-17 N 122-15-13 W Military Contract Numbers The facilities identified above support work accomplished under contract. The current contract numbers are: 1) F34601-03-C-0042, U.S.A.F. ALCM/CALCM Technical Description System: GLI Metro Amplifier GPS System Frequency: L1 1575.42 MHz Emission: 24M0G1D Effective Radiate Power: Maximum -75.11 dBm or 30.8318 Pico watts Frequency: L2 1227.60 MHz Emission: 24M0G1D Effective Radiate Power: Maximum -80.6 dBm or 8.7096 Pico watts L1 Link Budget - L1 (1575.4 MHz) Link Budget Parameter Value Units Comment Receive Power on Earth -130.00 dBm Rx Antenna Gain 38.00 dB AeroAntenna: AT2775-42W-TNCF-000-RG-36-NM Cable loss (RxAnt to L.P.) -0.68 dB LMR-600-DB Lightning Protector -0.50 Estimate Cable loss (L.P. to Box) -1.02 dB LMR-600-DB Amplifier Gain 35.00 dB GPS Source Metro-F12-R2B-P110/6.8-SF (Variable Gain) Amp Fixed Attenuators -20.00 Box Amp Box Misc Losses -0.50 Estimate Amp Box Cables -0.83 RG-316 Cable Cable loss (Box to TxAnt) -1.58 dB LMR-400-DB Connector Losses -4.00 Tx Antenna Gain 11.00 dB HG824-11LP-NF; 800MHz-2.5GHz 11dBi Log Periodic Antenna Free Space Loss -68.74 dB 136 Ft. EIRP @ 100 FT -143.85 dBm EIRP @ 100 FT from Building ( < -140 dBm) Output PWR at Antenna -75.11 dBm 0.0308 Nano-Watts or 30.8318 Pico-Watts L2 Link Budget – L2 (1227.6 MHz) Link Budget Parameter Value Units Comment Receive Power on Earth -136.00 dBm ~ 6 dB less than L1 Rx Antenna Gain 38.00 dB AeroAntenna: AT2775-42W-TNCF-000-RG-36-NM

Cable loss (RxAnt to L.P.) -0.59 dB LMR-600-DB Lightning Protector -0.50 Estimate Cable loss (L.P. to Box) -0.89 dB LMR-600-DB Amplifier Gain 35.00 dB GPS Source Metro-F12-R2B-P110/6.8-SF (Variable Gain) Amp Fixed Attenuators -20.00 Box Amp Box Misc Losses -0.50 Estimate Amp Box Cables -0.73 RG-316 Cable Cable loss (Box to TxAnt) -1.38 dB LMR-400-DB Connector Losses -4.00 Tx Antenna Gain 11.00 dB HG824-11LP-NF; 800MHz-2.5GHz 11dBi Log Periodic Antenna Free Space Loss -66.57 dB 136 Ft. EIRP @ 100 FT -147.17 dBm EIRP @ 100 FT from Building ( < -140 dBm) Output PWR at Antenna -80.6 dBm 0.0087 Nano-Watts or 8.7096 Pico-Watts The system receives the GPS signals from a roof top antenna and re-transmits the signals inside the facility to allow production and flight test personnel to perform installation, testing and troubleshooting of the aircraft’s GPS based systems. These systems will not be sold to the government or supplied to the Department of Defense as part of the contract. Stop Buzzer Stop buzzer for this operation is: Robert Shane, 253-657-6197 Ronny Anderson, 206-544-0408 John Masterson, 253-773-9476


Document Created: 2013-01-30 10:28:30
Document Modified: 2013-01-30 10:28:30
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