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RF Free-Space Path Loss (FSPL) and Ubiquiti AirOS Product Gain Matrix (for Reference)
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RF Free-Space Path Loss (FSPL) and Ubiquiti AirOS Product Gain Matrix (for Reference)

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RF Free-Space Path Loss (FSPL) and Ubiquiti AirOS Product Gain Matrix (for Reference) …

RF Free-Space Path Loss (FSPL) and Ubiquiti AirOS Product Gain Matrix (for Reference)
http://en.wikipedia.org/wiki/Free-space_path_loss

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  • 1. Ubiquiti AirOS Product Gain Matrix 26 Apr 10 nominal; not guaranteed; subject to revision Gain in dB: rf output + TA + RA; subtract path loss and cable loss for receive level input (under ideal conditions) [TA: transmit antenna gain; RA: receive antenna gain] Path Loss [dB] T AirGrid M5-23 AirGrid M5-27 Bullet M5 NanoBridge M5 NanoStation M5 PowerBridge M5 Rocket M5 Bullet 5 NanoStation 5 PicoStation 5 AirGrid M5-23 66 70 48+TA 68 65 75 50+TA 45+TA 61 52 AirGrid M5-27 70 74 52+TA 72 69 79 54+TA 49+TA 65 56 R Bullet 2 T Bullet 2 Bullet 2 HP Bullet M2 HP NanoStation 2 NanoStation 2 Loco NanoStation M2 PicoStation 2 PicoStation 2HP PowerStation 2 Rocket M2 20+ TA+RA 29+TA+RA 28+TA+RA 36+RA 28+RA 38+RA 26+RA 35+RA 26+TA+RA 27+TA+RA Bullet M5 43+RA 47+RA 25+TA+RA 45+RA 42+RA 52+RA 27+TA+RA 22+TA+RA 38+RA 29+RA Bullet 2 HP 20+TA+RA 29+TA+RA 28+TA+RA 36+RA 28+RA 38+RA 26+RA 35+RA 26+TA+RA 27+TA+RA Nano Bridge M5 65 69 47+TA 67 64 74 49+TA 44+TA 60 51 Bullet M2 HP 20+TA+RA 29+TA+RA 28+TA+RA 36+RA 28+RA 38+RA 26+RA 35+RA 26+TA+RA 27+TA+RA Nano Station M5 58 62 40+TA 60 57 67 42+TA 37+TA 53 44 Nano Station 2 30+TA 39+TA 38+TA 46 38 48 36 45 36+TA 37+TA Power Bridge M5 68 72 50+TA 70 67 77 52+TA 47+TA 63 54 Nano Station M2 30+TA 39+TA 38+TA 46 38 48 36 45 36+TA 37+TA Rocket M5 Bullet 5 43+RA 47+RA 25+TA+RA 45+RA 42+RA 52+RA 27+TA+RA 22+TA+RA 38+RA 29+RA Pico Station 2 26+TA 35+TA 34+TA 42 34 44 32 41 32+TA 33+TA 43+RA 47+RA 25+TA+RA 45+RA 42+RA 52+RA 27+TA+RA 22+TA+RA 38+RA 29+RA Pico Station 2 HP 26+TA 35+TA 34+TA 42 34 44 32 41 32+TA 33+TA Power Station 2 20+TA+RA 29+TA+RA 28+TA+RA 36+RA 28+RA 38+RA 26+RA 35+RA 26+TA+RA 27+TA+RA Pico Station 5 50 54 32+TA 52 49 59 34+TA 29+TA 45 36 Rocket M2 20+TA+RA 29+TA+RA 28+TA+RA 36+RA 28+RA 38+RA 26+RA 35+RA 26+TA+RA 27+TA+RA 5.8 GHz 0.5 94 102 1 100 108 1.5 104 111 2 106 114 2.5 108 116 5 114 121 7.5 118 125 120 128 15 124 131 20 Nano Station 5 57 61 39+TA 59 56 66 41+TA 36+TA 52 43 2.4 GHz 10 R Dist. [Km] 126 134 25 128 136 30 130 137 40 132 140 60 136 143 80 138 146 To select an acceptable radio pair: find path loss, add minimum receive level to path loss, use radio with lower rf output as ‘T’ Example: assume NanoStation M2 client at 5Km; path loss is 114dB. Assume minimum acceptable receive signal (with fade) = -60dB; 114 -65 = 54 Choose client in ‘R’ row, find AP radio in ‘T’ column with min. 54 gain [ex. NanoStation M2 client to Rocket M2 AP w/min. 17dBi antenna]