Calculations

0063-EX-PL-2009 Text Documents

L3 Communications

2009-02-12ELS_96233

                                                             GPS L1 Re-radiating Information & Calculations

Site Information
Antenna ID                                                                                            12100
Location Description                                                                     Hangar - Approx southwest corner
Coordinates, NAD 83, ddd-mm-ss.s                                                             33-04-26N-096-04-29W
Antenna - Receiving (RX)
Make and Model                                                                            ANTCOM Corp L1/L2GPSA-N
Gain (dBi)                                                                                         36.5
Amplifier / Splitter
Make and Model                                                                                    LA30RPDC-N
Gain (typical, in dB at each output)                                                                  30
Amplifier / Splitter
Make and Model                                                                                 NHIAPDC1X4/5/110
Gain (typical, in dB at each output)                                                                 18.4
Amplifier / Splitter
Make and Model                                                                                VGRRKAMP-N (-3-23)
Gain (typical, in dB at each output)                                                                 7
Antenna - Re-radiating (TX)
Make and Model                                     ANTCOM Corp L1/L2RRKPA-S               ANTCOM Corp L1/L2RRKPA-S          ANTCOM Corp L1/L2RRKPA-S
Gain (dBi)                                                   3.5                                    3.5                               3.5
Distance to nearest outer wall (ft)                          54                                     54                                54
Location Description                                        Bay 1                                  Bay 2                             Bay 3
Antenna Height AGL (ft)                                      60                                     60                                60
Free Space Loss                                             69.81                                  69.81                             69.81
Coax - RX Antenna to VGRRKAMP-N Amp
Type or Description                                                                                  LMR400
Attenuation @1575 MHz (dB/100 ft)                                                                      5.1
Length (ft)                                                                                            50
Coax Loss - RX Antenna to Amp                                                                         2.55
Coax - Amp to TX Antenna
Type or Description                                          LMR400                                  LMR400                         LMR400
Attenuation @1575 MHz (dB/100 ft)                              5.1                                     5.1                            5.1
Length (ft)                                                    210                                     480                            780
Coax Loss - Amp to TX Antenna                                 10.71                                   24.48                          39.78
Attenuator
Make & Model                                      GPS Networking ATTENPDC (1-30)        GPS Networking ATTENPDC (1-30)
Attenuation @1575 MHz (dB)                                      29                                    15
Calculated Signal Strength 100 ft Outside
Building (dBm)*                                              -146.67                                 -146.44                         -146.74
* This value MUST be less than negative 140 dBm



Document Created: 2009-02-12 14:29:48
Document Modified: 2009-02-12 14:29:48

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