Power Calculations

0280-EX-CN-2018 Text Documents

Textron Aviation, Inc.

2018-04-02ELS_207324

GPS Power Control Re-radiating Worksheet Antenna A1
L1 (1575.42 MHz)
Site Information
Antenna ID A1
70 ft north of south wall on centerline of Hangar
Location Description
Coordinates, NAD 83, ddd-mm-ss.s 37-38-47.0 N; 097-25-09.1 W
Antenna - Receiving (RX)
Make and Model GPS Source L1 Active Antenna
Gain (dBi) @ L1 (LNA included) 36
Coax
Type or Description C-240
Antenna - Re-radiating (TX)
Make and Model GPS Source L1 Passive Antenna
Antenna Height AGL (ft) 25
Gain (dBi) @ L1 3.0
Distance to nearest outer wall (ft) 70.0
Free Space Loss @ L1 70.66
Amplifier - Gain Control
GPS Source GLI-Metro RK (L1, Oscillation
Make and Model Detect, Antenna Alarm Monitor)
ERP Level Setting on Controller (includes -72
antenna gain) in dBm
Transmit Power at Terminal (pW)* 51.86
63.10
Transmit Power from Antenna (pW ERP)**
Calculated Signal Strength 100 ft
Outside Building (dBm EIRP)*** -140.51
* = Programmed ERP Level - Antenna Gain + 2.148 converted to pW
** = Programmed ERP Level (includes Antenna Gain) converted to pW
*** = Programmed ERP Level (includes Antenna Gain) - Free Space Loss + 2.148

GPS Power Control Re-radiating Worksheet Antenna A2
L1 (1575.42 MHz)
Site Information
Antenna ID A2
77 ft north of Antenna 1 on centerline of hangar
Location Description
Coordinates, NAD 83, ddd-mm-ss.s 37-38-47.7 N; 097-25-09.1 W
Antenna - Receiving (RX)
Make and Model GPS Source L1 Active Antenna
Gain (dBi) @ L1 (LNA included) 36
Coax
Type or Description C-240
Antenna - Re-radiating (TX)
Make and Model GPS Source L1 Passive Antenna
Antenna Height AGL (ft) 25
Gain (dBi) @ L1 3.0
Distance to nearest outer wall (ft) 70.0
Free Space Loss @ L1 70.66
Amplifier - Gain Control
GPS Source GLI-Metro RK (L1, Oscillation
Make and Model Detect, Antenna Alarm Monitor)
ERP Level Setting on Controller (includes -72
antenna gain) in dBm
Transmit Power at Terminal (pW)* 51.86
63.10
Transmit Power from Antenna (pW ERP)**
Calculated Signal Strength 100 ft
Outside Building (dBm EIRP)*** -140.51
* = Programmed ERP Level - Antenna Gain + 2.148 converted to pW
** = Programmed ERP Level (includes Antenna Gain) converted to pW
*** = Programmed ERP Level (includes Antenna Gain) - Free Space Loss + 2.148

Document Created: 2018-03-30 11:23:58
Document Modified: 2018-03-30 11:23:58

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