Microwave Data Systems MDS 4310 Installation, Operation & Field Maintenance page 21

Receiver
Frequency Range:
Operating Bands—
any one of eight:
Frequency Programming:
Type:
Frequency Stability:
Sensitivity for Analog Models:
(at connector)
ANTENNA
Bit Error Rates:
Intermodulation:
IF Selectivity:
Desensitization:
Spurious and Image Rejection:
Analog Audio Output Characteristics—
Frequency Response (Refer. to 1 kHz):
Level:
Harmonic Distortion:
RF Channel Bandwidth:
Received Signal Strength Indicator (RSSI):
Squelch Opening Time:
1-8
350–512 MHz (Nominal)
350–370 MHz, 370–390 MHz, 390–410 MHz,
406–430 MHz, 430–450 MHz, 450–470 MHz,
470–490 MHz, and 490–512 MHz
Programmable in 6.25 kHz increments to any
channel pair in radio operating sub-band.
Double Conversion Superheterodyne
±0.00015% (1.5 PPM) –30° to +60° C,
For All Models
12 dB SINAD at –117 dBm (0.3 µV)
w/de-emphasis OFF
12 dB SINAD at –119 dBm (0.25 µV)
w/de-emphasis ON
Analog/AFSK at 1200 bps:
BER 1x10
Digital/FSK at 4800 bps:
BER 1x10
Digital/FSK at 9600 bps:
BER 1x10
75 dB Minimum (EIA)
100 dB minimum at Adjacent Channel
(± 25 kHz, one generator method, 20 dB
quieting)
70 dB minimum (EIA) on 25 kHz channels
65 dB minimum (EIA) on 12.5 kHz channels
85 dB Minimum
Model 4310—Basic Transceiver:
Filtered, +1, –3 dB, 50 – 3000 Hz
Model 4310—with VOX Board:
Filtered, +1, –3 dB, 50 – 3000 Hz
Unfiltered, +1, –3 dB, 50 – 4500 Hz
Model 4350:
Filtered, +1, –3 dB, 300 – 3000 Hz
Adjustable, – 20 to + 5 dBm
Model 4310: 600 Ohms, Unbalanced
Model 4350/55: 600 Ohms, Balanced
< 3%, All Models, Measured w/de-emphasis
12.5 kHz (25 kHz compatible)
Built-in, Range: –120 dBm to –60 dBm
2 ms
GENERAL
–6
at –110 dBm
–6
at –110 dBm
–6
at –108 dBm
MDS 05-2415A01, Rev. A