User's Manual

16 MDS Master Station MDS 05-6399A01, Rev. D
2.2 Technical Specifications
The following are operating specifications for the SD Master Station 900MHz and 400MHz variants.
Items are separated into Transmit (TX) and Receive (RX) categories. Ongoing product improvements
may result in specification changes, and GE MDS reserves the right to make such changes without obli-
gation to any party. Should you require an exact specification for the build of your unit, please contact the
factory for additional assistance.
Table 2-2-1 900MHz Master Station Technical Specifications
Transmit (TX) Parameter Specification
Frequency Range 928-960 MHz (SDM9C)
3
Frequency Stability <0.5 ppm, -30C to +60C
TX Power Out +40.25 dBm +/-0.85dB at radio card for -30 to +60C
4
TX Frequency Response +/- 1.0 dB from 100 Hz to 2.5 kHz
Agency Approvals
FCC Part 24D
FCC Part 101C
IC RSS 119
Load VSWR 10:1 Max, All angles, No damage
Power Consumption <80W for all DC and AC versions, 100% TX Duty Cycle
Receive (RX) Parameter Specification
Frequency Range 928-960 MHz
RX Intermodulation >60 dB
RX Adjacent Channel >60 dB
RX Spurious and Image >60 dB when operating with integrated bandpass duplexer
RX Baseband Amplitude 225 < Audio Level <275 mV RMS, -50 dBm @ 1 kHz
RSSI Accuracy +/-3 dB for RSSI -110 to -70 dBm
RX High RF Input Level 10 dBm, no damage
RX Baseband Frequency Response +/- 1.0 dB from 100 Hz to 2.5 kHz
Power Consumption <30W for all DC and AC versions, transmitter disabled
Noise Figure <6 dB
Blocking >60 dB
Operating Range -30C to +60C
3
Additional frequency bands under development
4
-30 to +50C when operating continuously keyed (CKEY)