Question: In a Base Station (BS) supporting multi-band operation with 1.28 Mcps TDD Option, what is the maximum allowed transmit OFF power across all supported operating bands?
Option 1: Less than -90 dBm
Option 2: Less than -82 dBm
Option 3: Less than -76 dBm (applicable only to 7.68 Mcps TDD Option)
Option 4: Less than -70 dBm
Explanation: For a Base Station (BS) capable of multi-band operation and configured for the 1.28 Mcps TDD Option, the transmit OFF power must be below a certain threshold to minimize interference during transmitter OFF periods. This threshold is set at less than -82 dBm, ensuring all supported operating bands remain unaffected by potential bleed-over from the BS when in an OFF state for transmission, maintaining signal quality integrity across different frequency bands.