User's Manual Part 1

DSPbR Series – User’s Manual
Document Number 00000.B Page 15/75
2.3 Product Specifications
The DSPbR Series repeater is designed for configuration in a number of popular bands.
RFFE and RFBE modules with corresponding BPFM’s for both up and downlinks are currently available in the
following RF bands; 400-420MHz, 450-470MHz, 470-490MHz, 805-825MHz and 850-870MHz
RF Industries will be adding bands to the current list during our program of continued development. Please
contact our offices for an update on band availability if your required band is not already listed.
Electrical Specifications (across all bands)
Model Reference DSPbR Series
Frequency Ranges Contact RFI for latest list
Max number of channels – single 4RU sub rack frame 8 bi-directional (1 to 2 bands)
16 uni-directional (1 to 2 bands)
Max number of channels – multi-racks Please consult with RFI
Synthesiser Offset 0.00kHz or 6.25kHz
Mode of Operation Full Duplex, translating or non-
translating
DSP channel filter profile options (current) 9 (12.5kHz) & 15kHz (25 kHz)
Channel Spacing 12.5kHz and 25kHz
Receiver Sensitivity -118dBm (typical)
Adjacent Channel Selectivity NB 60dB / WB 70dB
Intermodulation Immunity > 70dB
Uplink Channel Gain (+40dBm per Ch 1dB steps) 50-130dB
Downlink Channel Gain (+45dBm per Ch 1dB steps) 55-135dB
Adjustable downlink / uplink Output Power without internal
combining unit fitted (RFBE module output) – 1dB
increments. Refer to Table 3 for maximum power limits
with internal combiner fitted.
400-490MHz Bands
+30dBm (1W) to +45dBm (35W)
805-870MHz Bands
+30dBm (1W) to +43dBm (20W)
Output ALC range 100dB (channel independent)
Noise Figure (no ALC, max gain) < 6dB
Tx Spurious and Harmonic Emissions < -30dBm @+45dBm output
PA Class of operation AB
Frequency Translating Error < 10 Hz, 0 Hz typical
System Impedance 50 Ohm
Maximum Input power no damage +10dBm
Ref Gen – GPS antenna feed voltage + 6V