DBCI means Decibels with respect to a Circularly-polarized Isotropic radiator in
NASA
Similar to DBCI
AA - Astronomical Applications
AA - Adverse Action
AA - Antenna Assembly
AAA - Avionics Air Assembly
AAC - Aft Access Closure
AACB - Aeronautics and Astronautics Coordinating Board
AAD - Attitude Anomaly Detector
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