BDA/ERRCS Glossary
Comprehensive definitions of terms related to bi-directional amplifiers, emergency responder radio communication systems, and fire code compliance.
B
Bi-Directional Amplifier(BDA)
An electronic device that amplifies radio signals in both directions, boosting weak incoming signals and amplifying outgoing portable radio transmissions.
Bi-Directional Amplifier
The full technical term for BDA, a device that amplifies radio signals in both transmit and receive directions.
D
Distributed Antenna System(DAS)
A network of antennas distributed throughout a building to provide wireless coverage, used in ERRCS to distribute enhanced public safety radio signals.
Donor Antenna
The outdoor antenna that captures public safety radio signals from external infrastructure for amplification and distribution inside a building.
DAQ Score
Delivered Audio Quality score, a measurement of voice intelligibility on a scale of 1-5 used to assess radio communication quality.
E
Emergency Responder Radio Coverage System(ERRCS)
A system of radio signal enhancement equipment that ensures first responders can communicate reliably inside buildings during emergencies.
Emergency Responder Communication Enhancement System(ERCES)
An alternative term for ERRCS used by some jurisdictions to describe emergency responder radio enhancement systems.
F
I
IFC Section 510(IFC 510)
The section of the International Fire Code that establishes requirements for emergency responder radio coverage in buildings.
In-Building Coverage
Radio signal coverage inside a building, specifically referring to the ability of first responders to communicate via radio throughout the structure.
Isolation
The separation between a BDA's input (donor) and output (coverage) signals measured in decibels, critical for preventing oscillation.
P
R
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