MDS 05-6399A01, Rev. E
MDS™ Master Station
15
Table 2-3. 400MHz Master Station Technical Specifications
Transmit (TX) Parameter
Specification
Frequency Range
400-450 MHz (SDM4B) 450-512MHz (SDM4C)
1
Frequency Stability
<0.5 ppm, -30C to +60C
TX Power Out
+41.1 dBm maximum at radio card for-30 to +60C
2
TX Frequency Response
+/- 1.0 dB from 100 Hz to 2.5 kHz
Agency Approvals
FCC Part 22
FCC Part 90
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
400-450 MHz (SDM4B) 450-512MHz (SDM4C)
RX Intermodulation
>60 dB
RX Adjacent Channel
>60 dB
RX Spurious and Image
>60 dB
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)
2.3 FCC Emission Designators: How to Find Them
An FCC emission designator is a seven-character string that represents the bandwidth, modula-
tion, and other characteristics of a transmitted radio signal. This information is required when
applying for an FCC license. The designator assigned to your equipment depends on the particu-
lar sub-model of the product line you are licensing. In some cases, multiple designators are used
to cover product variants such as base stations, remotes, indoor/outdoor units, frequency band,
etc. An updated and official list of emission designators is maintained on the FCC’s website at
the following link:
https://apps.fcc.gov/oetcf/eas/reports/GenericSearch.cfm
Once the site has been reached, proceed as follows to determine your designator:
1.
At the top of form in the box labeled Grantee Code: enter
E5M
. This is the code for GE MDS
products.
2.
At the bottom of the form in the box labeled
Show x Records at a Time
, enter a sufficiently large
number (i.e.,
300
) to display all GE MDS records on file. Press Enter.
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