RTU-292 Operations Manual
Table 7-6 VMM-100 SPECIFICATIONS
GENERAL
Frequency Response 100 to 3400 Hz +/- 2dB
Input Level 0 dBm nominal
Input Impedance Unbalanced 10k Ohm
DSP Output Delay < 10mS
Noise Reduction Type Dynamic Peaking around coherent signals
Noise Reduction Approximately 10-20 dB
Audio Output 10 Ohm unbalanced, 0 dBm nominal
Audio Output Distortion Less than 0.5% @ 1 kHz
VMR Performance Probability of detection (Pd) > 95% at 0 dB
S/N ratio
VMR Output Delay 0-300 ms, adjustable
VMR Hang Time 0.75-2.25 sec, adjustable in half-second
increments
Indicators Audio Level/Speech Present LED
Size 5.75" x 3.0" printed circuit board
+5 VDC, 200 mA nominal
+12 VDC, 5 mA nominal
Power Requirements
-5 VDC, 20 mA nominal
ENVIRONMENTAL
Operating Temperature -20C to +55C
Storage Temperature -40C to +85C
Humidity Up to 95% @ +55C
Shock MIL-STD-810D, method 516.3 procedure VI
Vibration MIL-STD-810D, method 514.3 Category I
Altitude Up to 10,000 ft.
JPS Communications, Inc.
7-9
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