Comba Comba CriticalPoint Public Safety 700/800 MHz Class B Bi-Directional Amplifier
Comba Comba CriticalPoint Public Safety 700/800 MHz Class B Bi-Directional Amplifier

Comba CriticalPoint Public Safety 700/800 MHz Class B Bi-Directional Amplifier

SKU#: RX-7W22-B
Comba CriticalPoint Public Safety 700/800 MHz Class B Bi-Directional Amplifier
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About This Product

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

Comba's CriticalPoint Class B BDA is a 700MHz/800MHz single or dual wide band repeater that was designed for use with public safety first responders. Fully compliant with the IFC and NFPA (National Fire Protection Association), CriticalPoint's Class B BDA provides up to 3 sub bands for each 700MHz or 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 features don't stop there. The unit also 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.

  • Digital/programmable utilizing FPGA
  • Supports public safety 700/800MHz in single band or dual band version
  • Supports FirstNet LTE band 14
  • Each band supports up to 3 sub bands
  • 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
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Who is this for?

In times of emergency firefighters, police, emergency medical services (EMS), and other disaster response agencies need reliable two-way communication to respond effectively.

Tech Specs

CriticalPoint™ 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)


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.

Installation & Deployment

At Signal Boosters we provide full turnkey integration of in-building wireless (IBW) systems that amplify signal indoors, delivering the signal you need to get the job done. From the first call to post-project, Signal Boosters handles every detail personally in-house. Our team of RF engineers, system integrators, designers, and certified signal boost specialists take complete ownership of your project.

1. Assessment
  • Pre-survey
  • Site survey
2. System Design
  • Data analysis
  • Floor plans
  • Equipment & Pricing
3. Installation
  • Installing equipment
  • Optimization
4. Support
  • Documentation
  • Monitoring & support
  • Enterprise 4G Amplifier
    CriticalPoint™ Public Safety Bi-Directional Amplifier
  • Power Supply
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