Daniels VT-3/140-SWA2, Instruction Manual

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1-4 Audio Processor Board Instruction Manual
1.3 FM Audio Processor Board Pin Connections
Figure 2 Pin Connection Diagram
1.4 Factory Configuration
The MT-3 FM Audio Processor is factory configured as follows:
Table 2 Factory Configuration
Parameter Specification
Maximum Deviation ±2.5 kHz (Narrowband),
±5.0 kHz (Wideband).
Microphone Input 1 kHz signal at -10 dBm gives ±60% rated system deviation
1 kHz signal compression set at ±84% rated system deviation
Audio Balanced Input
pre-emphasis response 1 kHz tone at -8 dBm gives ±60% rated system deviation
1 kHz signal compression set at ±84% rated system deviation
Subtone Input 1 100 Hz tone at -18 dBm gives ±500 Hz (Wideband)
±350 Hz (Narrowband) deviation
All other audio inputs Disabled
PCB
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
P1 P2 P4 P3
Balanced Input
END VIEW
Mic Input
Subtone Input 1
+8V
+9.5V
Low Frequency
Direct Mod Output
Voice
And Subtone
Output
-8
dBm
-10
dBm
-18
dBm
Surface Mount Side
0
dBm