Daniels VT-3/140-SWA2, Instruction Manual

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5-2 Audio Processor Board Instruction Manual
5.3 Subtone Input Test
Change Audio Generator frequency to 100 Hz and maintain level at –18 dBm (98 mV RMS).
Connect output to Subtone Input 1 (P2-2) and ground (P1-4). Refer to Table 8
Waveform
Levels, for levels and waveforms that should be present.
5.4 Audio benchmarks
Set the audio generator to 2.4 kHz @ 0 dBm at the Balanced Input. Compare the waveform levels
with those listed in table below.
Repeat for the various audio frequencies and levels and compare with the levels in the table below.
Table 8 Waveform Levels
Limiting Test Std Level Mic Test Subtone
Measured
@
2.4kHz
@0dBm
1 kHz @
-8dBm
1 kHz @
-10 dBm 100 Hz @
-18 dBm
TP3 5.2V P-P 3.8V P-P N/A N/A
TP12 N/A N/A 3.8V P-P N/A
TP10 6.5V P-P 4.9V P-P 4.8V P-P 1.1V P-P
TP5 2.4V P-P 1.3V P-P 1.9V P-P 0.4V P-P
JU6 5.5V P-P 1.7V P-P 1.8V P-P 0.4V P-P
TP8 1.5V 0.9V P-P 0.9V P-P 0.2V P-P