34 MDS 4710B/9710B I/O Guide MDS 05-3316A01, Rev. E
7.0 TECHNICAL REFERENCE
7.1 Transceiver Specifications
TRANSMITTER
Frequency Range: 380–512 MHz (MDS 4710B)
800–960 MHz (MDS 9710B)
(See Figure 4 on page 4 for hardware band limits)
Frequency Increments: 6.25 kHz or 5 kHz (Factory Configurable)
Modulation Type: Binary CPFSK
Audio Input Level: –20 to +5 dBm
Carrier Power: Maximum: 5 watts (+37 dBm)
Minimum: 0.1 watts (+20 dBm)
Duty Cycle: Continuous
Output Impedance: 50 ohms (Ω)
Frequency Stability: 1.5 ppm, –30 to +60 degrees Celsius
Channel Spacing: 12.5 kHz
Spurious & Harmonic: –65 dBc per EIA test specification
Time-out Timer: 1–255 seconds
Transmitter Keying: RTS
08 Major The system is reporting that it has not been calibrated. Factory
calibration is required for proper radio operation.
09 -- Not used.
10 Major The internal microcontroller was unable to properly program the
system to the appropriate EEPROM defaults. A hardware
problem may exist.
11–15 -- Not used.
16 Minor Not used.
17 Minor A data parity fault has been detected on the DATA INTERFACE
connector. This usually indicates a parity setting mismatch
between the radio and the RTU.
18 Minor A data framing error has been detected on the DATA
INTERFACE connector. This may indicate a baud rate mismatch
between the radio and the RTU.
20 Minor Configuration error. An invalid parameter configuration exists.
This may be caused by an invalid modem choice.
19–24 -- Not used.
25 Minor The 5.6 volt power regulator is out-of-tolerance. If the error is
excessive, operation may fail.
26 Minor The DC input voltage is out-of-tolerance. If the voltage is too far
out of tolerance, operation may fail.
27, 28 -- Not used
31 Minor The transceiver’s internal temperature is approaching an
out-of-tolerance condition. If the temperature drifts outside of the
recommended operating range, system operation may fail.
Table 11. Event codes (Continued)
Event
Code
Alarm
Type Description
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