Figure 17. Waveform W4; Figure 18. Waveform W5 - Motorola ASTRO Digital Saber Service Manual

13 Acquisitions
Tek stopped:
T
T
1
Ch1 2.00V
W4: ABACUS programming
captured during mode change.
Trace 1 - (ADSIC) SBI
Figure 17 . Waveform W4
Tek stopped: 34513 Acquisitions
T
T
1
2
3
Ch1 2.00V Ch2 500mV
Ch3 500mV
W5: ABACUS/ADSIC Interface.
Receiving 1KHz tone @ 3KHz deviation,
-60dbm.
Trace 1 -IDC (2.4MHz)
Trace 2 - DOUT
TRACE 3 - DOUT*
Note 2: Since these signals are a differential
current loop these voltages are very low.
Figure 18 . Waveform W5
Ch1 Freq
74.610kHz
M 10.0us Ch1 2.2 V
MAEPF-24379-O
M 5.00us Ch1 2.2 V
MAEPF-24380-A
2
Ch1 Freq
2.251920 MHz
Low resolution
11-3