by Fmeaddons

Guardian3 – Bi-Directional Amplifier for Public Safety Bands up to 80,000 sq ft


Guardian3 SC-TriPSB

  • Built-in safeguards eliminate interference to public safety network Software upgradable in the field
  • Stealth technology incorporated- uplink becomes dormant when not in use, providing power-saving operation
  • Independently adjustable uplink and downlink
  • Lowest out of band emissions
  • Auto Gain Control (AGC) and automatic shut down
  • Includes NEMA enclosure – Meets NEMA 4 type requirements
  • Coverage up to 80,000 sq ft, 100+ simultaneous users
  • Industry leading 3-year warranty
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The SureCall Guardian3 amplifies signals for crucial communications inside police stations, fire departments and hospitals, delivering reliable and robust signal quality for the public safety officials relying on two-way radio communications.

The Guardian3 tri-band booster increases signal strength for Public Safety Bands and SMR (specialized mobile radio service) inside buildings with weak signal strength. Guardian3 amplifies 700MHz & 800MHz and 900MHz SMR frequency bands, covering up to 80,000 square feet and 100+ simultaneous users. The Guardan3 Industrial booster features sturdy metal construction and an industry leading 3-year warranty. Includes NEMA-4 rated enclosure.

Product Specifications:

Uplink Frequency Range (MHz): 788-805 / 806-824 / 896-901 (Including D Block)
Downlink Frequency Range (MHz): 758-775 / 851-869 / 935-940 (Including D Block)
Supported Standards: Public Safety 700 and 800 and SMR 900
Input/Output Impedance: 50 Ohm
Maximum Gain: 80 dB
Maximum RF Output Power: 26 dBm
Noise Figure: ≤ 8 dB
VSWR: ≤2.0
AC Power Transmitter: Input AC 110 V, 60 Hz
Maximum Output Power: 3 Watt EIRP
P1dB: 31.5dBm
Cable: SC-400
RF Connectors: N Female (both ends)
Power Consumption: 90W
Dimensions: 15.5″ X 11 X 3.5″
Weight: 19.5 lbs

Additional information

Antenna(s) in kit


Max. Floor coverage


Coverage in sq ft

up to 25,000 sq ft