7. Two antennas are 30km away from one another. Calculate link budget and fade margin. Free space path loss 10 kilometers -150dB Parabolic antenna +25 dBi Parabolic antenna +25 dBi 50' LMR-600 cable 50' LMR-600 cable -2.21 dB -2.21 dB Lightning arrestor -0.1 dB Lightning arrestor -0.1 dB 10' LMR-600 cable 10' LMR-600 cable -0.44 dB -0.44 dB TX = +10 dBm Transmitter Receiver Receive sensitivity threshold = -70dBm
7. Two antennas are 30km away from one another. Calculate link budget and fade margin. Free space path loss 10 kilometers -150dB Parabolic antenna +25 dBi Parabolic antenna +25 dBi 50' LMR-600 cable 50' LMR-600 cable -2.21 dB -2.21 dB Lightning arrestor -0.1 dB Lightning arrestor -0.1 dB 10' LMR-600 cable 10' LMR-600 cable -0.44 dB -0.44 dB TX = +10 dBm Transmitter Receiver Receive sensitivity threshold = -70dBm
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Transcribed Image Text:7. Two antennas are 30km away from one another. Calculate link budget and fade margin.
Free space path loss
10 kilometers
-150dB
Parabolic antenna
+25 dBi
Parabolic antenna
+25 dBi
50' LMR-600 cable
50' LMR-600 cable
-2.21 dB
-2.21 dB
Lightning arrestor
-0.1 dB
Lightning arrestor
-0.1 dB
10' LMR-600 cable
10' LMR-600 cable
-0.44 dB
-0.44 dB
TX = +10 dBm
Transmitter
Receiver
Receive sensitivity
threshold = -70dBm
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