Cobham Cobham 700/800 MHz Digital Multi-Channel Class A Public Safety Signal Booster
Cobham Cobham 700/800 MHz Digital Multi-Channel Class A Public Safety Signal Booster

Cobham 700/800 MHz Digital Multi-Channel Class A Public Safety Signal Booster

NFPA 72-2013, Chapter 24 and IFC 510.1 Compliant
Cobham 700/800 MHz Digital Multi-Channel Class A Public Safety Signal Booster
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Cobham Public Safety Signal Booster

Flexible, On-Frequency and Frequency Shifting RF Repeaters

Cobham D-MBR 3707-3708 PS NFPA (Digital Multi Band Repeater for Public Safety) is a Class A Digital Multi-Channel Signal Booster (DCSB). It features an array of up to 48 DSP based, software-controlled, variable bandwidth filters (up to 75KHz) per band , that are user-programmable across the 700 and 800 MHz bands.

D-MBR 3707-3708 PS NFPA supports all public safety technologies. For each filter, the user can specify the start and stop frequencies to reduce the installation time of the signal booster and enable a very wide range of filters selection.

Every parameter of D-MBR 3707–3708 PS NFPA, including filter tuning and selection, can be controlled via web based management. The patented Cobham Wireless digital RF filter enables simple initial setup for any channel plan and if necessary, allows some basic reconfiguration due to re-banding.

The SALC - Smart ALC algorithm will reduce the gain to protect the signal booster from oscillation. When the gain cannot be reduced anymore a shut-down mechanism will be triggered.

The uplink squelch feature gates each channel uplink unless traffic is happening minimizing uplink noise at BTS receiver.

The Spectrum tool enables viewing uplink and downlink power levels over the complete bandwidth. The tool allows identifying peak usage and monitoring of power levels.

This product meets the rigid requirements as defined by the NFPA and International Fire Code developmental organizations. The amplifier is painted a Fire Life Safety Red, meets NEMA 4 compliance for hose down, and provides all Alarming outputs as defined by NFPA 2013, Chapter 24 including system and antenna failures. The power supply integrity alarm is via BDA Failure Alarm if primary power is disconnected or otherwise interrupted.

The signal booster is a DC fed unit. An external battery charger unit is available as well. The charger is connected to the AC and includes a circuit to charge external batteries with all the dry contact alarms as defined in the NFPA standard: AC failure, Charger failure and Low battery.

  • Class A signal booster for SMR and public safety networks
  • Supports APCO 25 phase 1 and 2 for public safety networks
  • NFPA 72-2013 Chapter 24 and IFC 510.1 compliant
  • Uplink Squelch
  • Patented DSP Filtering™ technology
  • NEMA 4 enclosure
  • Web based management, SNMP traps
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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

D-MBR 3707-3708 PS-NFPA Class A
Frequency Range SMR 700 MHz D Block DL: 758-763MHz, UL: 788-793MHz
SMR 700 MHz DL: 763-775MHz, UL: 793-805MHz
SMR 800 MHz DL: 851 - 861MHz, UL: 806 - 816MHz
Passband Gain 65 dB to 95 dB Adjustable in 1 dB steps
Gain Attenuation Range 30 dB
Filter Bandwidth SMR 700 and 800 MHz Programmable BW 12.5 kHz to 75 kHz in 12.5 kHz steps
Total number of supported filters in both SMR 700 and 800MHz bands 48
Dimensions 21.3 x 15 x 12.3 (inches) / 540 x 382 x 313 (mm)
Weight 73 lbs. (33 kg)
Power Supply -48 VDC
Power Consumption 350 W
Total RF Input Power (no damage) +10 dBm
Impedance 50 Ohm
RF Connector N Type, Female
Compliance IC/FCC


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
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    D-MBR 3707-3708 PS-NFPA Class A Booster

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