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September 5, 2008
6881076C25-E
6-10
Troubleshooting Waveforms:
ASTRO Digital Spectra Plus VOCON Board Waveforms
SPI Bus Waveform
TX 1 kHz Tone Waveform
Radio Power Up
Trace 1 — U201 — 41 - Data
Trace 2 — U201 — 43 - Chip Select
Trace 3 — U201 — 42 - Clock
Transmitting
1 kHz tone at 85mVrms into microphone
Trace 1 — U402 — 17
Summary of Contents for ASTRO Digital Spectra
Page 2: ......
Page 6: ...September 5 2008 6881076C25 E iv Document History Notes ...
Page 20: ...xviii List of Tables September 5 2008 6881076C25 E Notes ...
Page 24: ...September 5 2008 6881076C25 E xxii CommercialWarranty Notes ...
Page 48: ...September 5 2008 6881076C25 E xlvi Model Numbering Charts and Specifications Notes ...
Page 142: ...September 5 2008 6881076C25 E 3 82 Theory of Operation Power Amplifiers Notes ...
Page 434: ...September 5 2008 6881076C25 E Glossary 10 Notes ...
Page 440: ...Index 6 September 5 2008 6881076C25 E Notes ...
Page 441: ......