Question: What is the maximum allowed transmitter OFF power spectral density for a Base Station (BS) in all its supported operating bands?
Option 1: -95dBm/MHz
Option 2: -75dBm/MHz
Option 3: -85dBm/MHz
Option 4: -105dBm/MHz
Explanation: This answer is correct because, according to specifications for Base Station radio transmission and reception, the transmitter OFF power spectral density must be less than -85dBm/MHz, minimizing interference during transmitter off periods across all supported operating bands.