Table 1.
Attenuation of GSM Signal Per Feet with InputSignal of 1900 MHz (LMR 400)
| Freq. (MHz) | 850-1900 | 850-1900 | 850-1900 | 850-1900 | 850-1900 | | Input signal | 1900 | 1900 | 1900 | 1900 | 1900 | | Load SWR | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | | Input power (Watts) | 100 | 100 | 100 | 100 | 100 | | Length in feet | 100 | 80 | 60 | 40 | 20 | | Matched loss in dB | 5.825 | 4.66 | 3.495 | 2.33 | 1.165 | | SWR loss in dB | 0.165 | 0.157 | 0.142 | 0.117 | 0.074 | | TOTAL loss in dB | 5.991 | 4.87 | 3.638 | 2.448 | 1.24 | | Power out in Watts | 25.177 | 32.982 | 43.275 | 56.917 | 75.17 | | Power loss in Watts | 75 | 67 | 57 | 43 | 24 |
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