User's Manual

MDS 05-3447A01, Rev. F MDS 1710A/C and MDS 2710A/C/D 33
7.0 TECHNICAL REFERENCE
7.1 Transceiver Specifications
TRANSMITTER SYSTEM SPECIFICATION
Operating Frequency: See Transmitter Specifications
Frequency Stability: ±1.5 ppm
Adjacent Channel Power: –65 dBc (MDS 1710A/2710A)
–60 dBc (MDS 1710C/2710C)
–55 dBc (MDS 2710D, 1710D)
Carrier Power Accuracy: ±2 dB
RECEIVER SYSTEM SPECIFICATION
Operating Frequency: See Receiver Specifications
Maximum Usable Sensitivity: –111 dBm for 1 x 10
-6
BER
Co-Channel Rejection: –12 dB
DATA CHARACTERISTICS
Signaling Standard: EIA-232
Connector: DB-25 Female
Data Interface Rates: 110 bps to 38.4 kbps1200, 2400, 4800, 9600,
19200, 38400 bps—asynchronous
Data Latency: 10 ms maximum, including RTS/CTS delay
Byte Length: 10 or 11 bits
TRANSMITTER
Frequency Range: 130-174 MHz (MDS 1710A/C/D)
216-220 MHz (MDS 2710 A/C) FCC
220-240 MHz (MDS 2710A/C)
220-222 MHz (MDS 2710D) FCC
See
Figure 4 on Page 5 for detailed listing
Modulation Type: Binary CPFSK
Carrier Power: 0.1 Watts to 5 Watts @13.8 Vdc
Duty Cycle: Continuous
Output Impedance: 50 ohms
Frequency Stability: MDS 1710 ±1.0 ppm
MDS 2710 ±1.5 ppm
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 8. Event Codes (Continued)
Event
Code
Event
Class Description