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MDS 4790M (MPT 1411) I/O Guide
MDS 05-3628A01, Rev. B
8.0
TECHNICAL REFERENCE
8.1 Technical Specifications
GENERAL
Size
2RU (88.90 mm/3.5 inch) high
363 mm (14.3 in) deep
437 mm (17.2 in) wide
—includes duplexer and power supply
Weight
9 kg (19.8 lbs.) max
Frequency Range
See Section 2.6,
Model Number Codes
, beginning on
page 6 for the model’s frequency range.
Reprogrammable within two bands; duplexer may
require retuning if moving more than 100 kHz.
Frequency Step Size
6.25 kHz, 5.0 kHz
System Address
0...65000 (reprogrammable from 10000...65000)
DATA CHARACTERISTICS
Signaling Standard
EIA-232
Connector
DB-25 Female
Data Rates
110, 300, 1200, 2400, 4800, 9600, 19.2 kbps,
38.4 kbps asynchronous
Data Latency
7 ms max at 9.6 kbps
Byte Length
10 or 11 bits
TRANSMITTER SYSTEM
Frequency Stability
±
1.5 ppm
Carrier Power Accuracy
Normal
Extreme
±
1.5 dB
+
2 dB to –3 dB
Adjacent Channel Power
–60 dBc
Spurious Emissions
–36 dBm, 9 kHz to 1 GHz
–30 dBm, 1 GHz to 12 GHz
Frequency Range
See Section 2.6,
Model Number Codes
, beginning on
page 6 for model details.
Modulation Type
Binary CPFSK
Carrier Power
5 Watts
Duty Cycle
Continuous
Output Impedance
50 Ohms
Bandwidth Compatibility
12.5 kHz
Harmonics
2nd harmonic
3rd harmonic and higher
–73 dBc
–67 dBc
Transmitter Keying
Data activated or RTS
