September 5, 2008
6881076C25-E
6-2
Troubleshooting Waveforms:
ASTRO Digital Spectra Waveforms
6.2
ASTRO Digital Spectra Waveforms
Waveform W1: Power-On Reset Timing
Waveform W2: DSP SSI Port RX Mode
SWB+
POR
t
217mS
o
MAEPF-25187-O
2893 Acquisitions
Tek stopped:
T
2
Ch3
Ch1
T
1
3
M 20.0us Ch1 2.2 V
W2: DSP SSI Port RX mode.
Receiving
1KHz tone @ 3KHz deviation, -60dBm.
Trace 1 - RFS
Trace 2 - RXD
Trace 3 - SCKR (2.4/0.600MHz)
Ch1 Freq
19.991kHz
Low signal
amplitude
5.00V
5.00V
1
5.00V
Ch2
MAEPF-24377-O
Note 1: Typically SCKR is a 2.4 MHz clock. In low power
modes, as shown here, SCKR is 600KHz.
Содержание ASTRO Digital Spectra
Страница 1: ...ASTRO Digital Spectra and Digital Spectra Plus UHF VHF 800 MHz Mobile Radios Detailed Service Manual ...
Страница 2: ......
Страница 6: ...September 5 2008 6881076C25 E iv Document History Notes ...
Страница 20: ...xviii List of Tables September 5 2008 6881076C25 E Notes ...
Страница 24: ...September 5 2008 6881076C25 E xxii CommercialWarranty Notes ...
Страница 48: ...September 5 2008 6881076C25 E xlvi Model Numbering Charts and Specifications Notes ...
Страница 142: ...September 5 2008 6881076C25 E 3 82 Theory of Operation Power Amplifiers Notes ...
Страница 218: ...September 5 2008 6881076C25 E 4 76 Troubleshooting Procedures Power Amplifier Procedures Notes ...
Страница 258: ...September 5 2008 6881076C25 E 6 14 Troubleshooting Waveforms ASTRO Digital Spectra Plus VOCON Board Waveforms Notes ...
Страница 434: ...September 5 2008 6881076C25 E Glossary 10 Notes ...
Страница 440: ...Index 6 September 5 2008 6881076C25 E Notes ...
Страница 441: ......