The SB2025NT-C Base Station offers market leading dual mode P25 conventional and analogue performance in a robust, reliable yet compact 2U form factor. Designed and built to exceed industry standards, this base station features a digital fixed station interface (DFSI) enabling economic deployment and simple remote management.

Performance & Reliability

The combination of advanced component surface mount technology, rugged machined module casing and optimised PA heatsink, ensures that the SB2025NT-C base station offers outstanding performance and reliability under the harshest conditions.

The sensitive receiver features a wide switching bandwidth while maintaining good blocking, intermodulation and adjacent channel performance. The broadcast transmitter exciter module has very low spurious emission levels, and is followed by an efficient RF power amplifier.

  • Wide range of frequency bands available
  • Individual channel programmable parameters, including: frequency, power, NAC/TGID, RF mode and channel bandwidth
  • Optional feature upgrades available using software keys
  • Easy to deploy base station with intuitive set up and simple remote management

SB2025NT-C Compact P25 Base Station

SB2025NT-C Compact P25 Base Station

Specifications

  • General

    Antenna Connections: Rx,Tx both N type female
    Channel Spacing: Analogue - Programmable 25/12.5 kHz. Digital - 12.5kHz
    Channels: 255 DFSI selectable
    Frequency: 148-174 MHz, 400-435 MHz, 435-470 MHz, 763-775 MHz (TX), 793-805 MHz (RX+), 850-870 MHz (TX), 805-825MHz (RX)
    Modulation: Analogue - Direct FM two point method. Digital - C4FM
    Operating Temperature: - 30 to +60˚C (-22˚ to 140˚F)
    Physical Size: 2RU Height x 19” rack mount
    Supply Voltage: 13.8 +/- 20% or optional AC mains input
    Models:

    Transmitter

    Frequency Stability: 1.5PPM
    Modulation Fidelity: Less than 3%
    Power Output: 100W
    Symbol Deviation: 1.8kHz

    Receiver

    Audio Bandwidth: 300Hz to 3000Hz (+1,-3dB)
    Distortion: Less than 2% @ 60% deviation
    Intermodulation Immunity: Better than 82dB blocking better than 100dB at +/- 1MHz point
    Sensitivity: Better than -117 dBm for 12 dB SINAD, typ -120 dBm. P25 - Better than -117 dBm for 5% BER

    Apco P25

    APCO P25: • Front panel status indicators • DFSI interface option for IP connected dispatch console • Mixed mode repeat - analogue and digital • NAC can be unchanged or defined • Remote diagnostics • Transparent P25 repeat - passes encrypted voice transparently

    Options

    Options: • 4-wire analogue dispatch console interface (via central NI) • SNMP traps