User Manual

SGD-SB2025NT-TUM, Part 1
Jan 12 Page 13 SPECIFICATIONS
2 SPECIFICATIONS
2.1 G ENERAL S PECIFICATIONS
Table 1. General Specifications.
Antenna Connections
Tx and Rx both 50 Ω Female N-type connectors. (N-type Female
simplex option).
Analogue – Direct Frequency Modulation (FM) two point method.
Modulation
±2.5 kHz narrow band, ±5 kHz wide band
Channel Spacing
Analogue – Programmable 25/12.5 kHz.
Channels 255 PC software selectable.
Supply Voltage
13.8 V DC ±20% or optional AC mains input.
Operating Temperature
-30 °C to +60 °C (-22 °F to 140 °F)
Frequency Bands:
A full list of available frequency bands is contained in Appendix A.
Size
2U Height 19” rack mountable.
Weight
<9 kg
2.2 T RANSMITTER S PECIFICATIONS
Table 2. Transmitter Specifications.
Power Output
1 W to 50 W (100 W option).
Frequency Stability
1.5 ppm std; UHF - 2.5 ppm; VHF – 5 ppm;
VHF-Low – 20 ppm; 800 MHz – 1.0 ppm
Analogue Audio Response
Flat within +1 dB, -3 dB across B/W.
Analogue Audio Bandwidth
300 Hz – 3000 Hz.
Analogue Modulation Distortion
<2% @ 60% deviation.
2.3 R ECEIVER S PECIFICATIONS
Table 3. Receiver Specifications.
Sensitivity
Better than -117 dB for 12 dB SINAD, typically -120 dB. P25
– better than -117 dB for 5% BER.
Audio Bandwidth
300 Hz – 3000 Hz (+1/-3 dB)
Intermodulation Immunity
Better than 82 dB
Blocking
Better than 100 dB at ±1 MHz point
Distortion
<2% @ 60% deviation.