BASE STATION REPEATERS
SB2025NT-C COMPACT P25 BASE STATION
DESCRIPTION
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
TECHNICAL SPECIFICATIONS
148-174 MHz, 400-435 MHz, 435-470 MHz, 763-775 MHz (TX), 793-805 MHz (RX+), 850-870 MHz (TX), 805-825MHz (RX)
Channels:
255 DFSI selectable
Channel Spacing:
Analogue – Programmable 25/12.5 kHz / Digital – 12.5kHz
Antenna Connections:
Rx,Tx both N type female
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
1.5PPM
Modulation Fidelity:
Less than 3%
Power Output:
100W
Symbol Deviation:
1.8kHz
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
- 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
- 4-wire analogue dispatch console interface (via central NI)
- SNMP traps
