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Comba CriticalPoint Class A Public Safety BDA

Comba CriticalPoint Class A Public Safety BDA

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Quick Overview

Highly affordable, state of the art solutions for public safety.



Highly affordable, state of the art solutions for public safety.

Comba's CriticalPoint Class A BDA is a 700MHz/800MHz single or dual band digital channelized repeater that was designed with public safety first responders in mind. Fully compliant with the IFC and NFPA (National Fire Protection Association), CriticalPoint's BDA supports up to 32 channels per band (700MHz and 800MHz). Depending on the size of the building, the BDA is offered in two versions, a .5W or 2W of downlink power per band to accommodate smaller buildings. The channelized uplink squelch and channelized uplink AGC functions ensure minimum interference to base stations and optimizes communications quality.

It includes comprehensive alarming capabilities, which supports all NFPA and IFC required monitoring and alarming, and also provides local and SNMP based remote monitoring. The built-in signal generator and isolation testing function provide great convenience to system integrators during deployments. Finally, the unit can be ordered either AC or 48V DC powered, allowing for flexibility depending on the design of the system.

In addition, by utilizing Comba's well-known high efficiency amplifier design, the BDA provides a very small footprint, light weight design, low electrical operating costs, and low UPS backup costs. Comba's total vertical in house design and manufacturing capabilities, and supply chain management resources, ensures that the CriticalPoint BDA is a very affordable, reliable and state of the art.

Key Features

  • Digital/programmable utilizing FPGA
  • Supports public safety 700/800MHz in single band or dual band version
  • Supports FirstNet LTE band 14
  • Web based GUI for intelligent configuration, SNMP supported
  • Channelized Auto Gain Control (AGC) / Channelized uplink squelch
  • Built-in mandatory isolation test to prevent BDA oscillation
  • NFPA compliant dry contact alarms, NEMA 4X enclosure


This is NOT a CONSUMER device. It is designed for installation by FCC LICENSES and QUALIFIED INSTALLERS. You MUST have an FCC LICENSE or express consent of an FCC Licensee to operate this device. Unauthorized use may result in significant forfeiture penalties, including penalties in excess of $100,000 for each continuing violation.


CriticalPointâ„¢ Public Safety Bi-Directional Amplifier
Frequency Uplink: 788-805 MHz, 806-824 MHz
Downlink: 758-775 MHz, 851-869 MHz
Total Output Power Uplink: 27 dBm
Downlink: 33 dBm
Maximum System Gain 90 dB
Impedance 50 Ohm
RF Connectors N-Female
Power Consumption 50 Ohm
Dimensions 20.9 x 15.4 x 8.3 (inches) / 530 x 390 x 210 (mm)
Weight 50.7 lbs. (23 kg)

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