
102 Chapter 3
Basic Digital Operation
Using External Triggering
4. Press Ext Delay Off On to On.
5. Press
Ext Delay Time > 100 > msec.
The waveform will now trigger once 100 milliseconds after it detects a change in TTL state
from low to high at the PATT TRIG IN rear panel connector.
Configuring the Function Generator
Set the function generator waveform to a 0.1 Hz square wave at an output level of 0 to 5V.
Generating the Waveform
Press Mode > CDMA > Arb IS-95A > CDMA Off On.
This generates a waveform with the custom multicarrier CDMA state configured in the
previous section. The display changes to Multicarrier Setup: 4 CARRIERS. During
waveform generation, the CDMA and I/Q annunciators activate and the new custom
multicarrier CDMA state is stored in volatile ARB memory. The waveform is now modulating
the RF carrier.
Configuring the RF Output
1. Set the RF output frequency to 890.01 MHz.
2. Set the output amplitude to
−10 dBm.
3. Press
RF On/Off to On.
The externally single-triggered custom multicarrier CDMA waveform is now available at the
signal generator’s RF OUTPUT connector 100 msec after receiving a change in TTL state
from low to high at the PATT TRIG IN, provided by the function generator output.
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