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Question 14.3: For an earth station transmitter with an antenna output powe......

For an earth station transmitter with an antenna output power of 40 dBW (10,000 W), a back-off loss of 3 dB, a total branching and feeder loss of 3 dB, and a transmit antenna gain of 40 dB, determine the EIRP.

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Substituting into Equation 6 yields
EIRP = P_{in}A_{t}            (6)
EIRP = P_{t}\, – \,L_{bo} –  L_{bf} + A_{t}
= 40 dBW − 3 dB − 3 dB + 40 dB = 74 dBW

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