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BDA Coverage & Gain Sizing Simulator

Simulate a BDA system across up to 5 building zones. Configure BDA gain, donor signal, and per-zone cable/penetration losses. Each zone shows outbound RSSI with IFC 510 / NFPA 1221 pass/fail verdict.

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IFC 510 / NFPA 1221 — COMPLIANT
5/5 zones passing (100% — requirement: ≥95%)
100%
System Parameters
-78 dBm
65 dB
24 dBm
3 dB
-25 dBmZ1PASS-32 dBmZ2PASS-38 dBmZ3PASS-44 dBmZ4PASS-51 dBmZ5PASSBDA
Zone-by-Zone Analysis
Zone 1 — Core (near BDA)PASS
Antenna Port
-24.5 dBm
Outbound RSSI
-24.5 dBm
Min Required
−95 dBm
Penetration Loss: 3dB
Cable Loss: 1.5dB
Antenna Gain: 3dBi
Zone 2 — Mid FloorPASS
Antenna Port
-26.5 dBm
Outbound RSSI
-31.5 dBm
Min Required
−95 dBm
Penetration Loss: 8dB
Cable Loss: 3.5dB
Antenna Gain: 3dBi
Zone 3 — Far EndPASS
Antenna Port
-29.0 dBm
Outbound RSSI
-38.0 dBm
Min Required
−95 dBm
Penetration Loss: 12dB
Cable Loss: 6dB
Antenna Gain: 3dBi
Zone 4 — Stairwell / EgressPASS
Antenna Port
-31.0 dBm
Outbound RSSI
-44.0 dBm
Min Required
−95 dBm
Penetration Loss: 15dB
Cable Loss: 8dB
Antenna Gain: 2dBi
Zone 5 — Basement / BelowPASS
Antenna Port
-32.5 dBm
Outbound RSSI
-50.5 dBm
Min Required
−95 dBm
Penetration Loss: 20dB
Cable Loss: 9.5dB
Antenna Gain: 2dBi
IFC 510.4.1 / NFPA 1221 9.6: 95% of area must achieve −95 dBm minimum inbound and outbound signal. Penetration loss values: drywall 3–5 dB, CMU block 12–15 dB, concrete 15–25 dB, glass 6–10 dB. Adjust per-zone losses to match your actual building construction.