Serial Audio Port Waveform; Rx Audio Waveform - Motorola ASTRO Digital Spectra Service Manual
Uhf/vhf/800 mhz mobile radios
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Troubleshooting Waveforms: ASTRO Spectra Digital Plus VOCON Board Waveforms
Serial Audio Port Waveform
RX Audio Waveform
68P81076C25-C
Transmitting
1 kHz tone at 85mVrms into microphone
Trace 1 — U402 — 7 - Frame Sync
Trace 2 — U402 — 11 - Clock
Trace 3 — U402 — 13 - Data
Receiving
1 kHz tone at 3 kHz Dev, -47dBm
Trace 1 — U402 — 2
6-11
July 1, 2002
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