GE Grid Solutions MDS Master Station - Technical Specifications

MDS 05-6399A01, Rev. F MDS™ Master Station 103
with the original system. For more information refer to the appropriate section below for the
specific Radio Module.
Technical Specifications
The following are the key operating specifications for the SD Master Station 900MHz and
400MHz variants, as well as LN Master station. 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 obligation to any party. Should
you require an exact specification for the build of your unit, please contact the factory for
additional assistance.
Table 6-12. 900MHz SD Master Station Technical Specifications
Transmit (TX) Parameter
Specification
Frequency Range
928-960 MHz (SDM9C, SDM9K)
1
Frequency Stability
<0.5 ppm, -30°C to +60°C
TX Power Out
+40.25 dBm +/-0.85dB at radio card for -30°C to +60° C
1
+37 dBm +1.85/-0.85 dB at back of chassis -30°C to +60°C
1
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 (SDM9C), 880-915 MHz (SDM9K)
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
-30°C to +60°C
1
Additional frequency bands under development
2
-30°C to +50°C when operating continuously keyed (CKEY)