Agilent Technologies E8267D PSG - Manual (Page 175)

Chapter 6 161
Custom Arb Waveform Generator
Working with User–Defined Setups (Modes)-Custom Arb Only
11. Press Digital Mod Define > Store Custom Dig Mod State > Store To File .
If there is already a file name from the Catalog of DMOD Files occupying the active entry
area, press:
Edit Keys > Clear Text
12. Enter a file name (for example, NADCQPSK) using the alpha keys and the numeric keypad.
13. Press Enter .
The user–defined single–carrier digital modulation state should now be stored in non–volatile
memory. The RF output amplitude, frequency, and operating state settings are not stored as part
of a user–defined digital modulation state file.
Customizing a Multicarrier Setup
In this procedure, you learn how to customize a predefined multicarrier digital modulation setup by
creating a custom 3–carrier EDGE digital modulation state.
1. Press Preset .
2. Press Mode > Custom > Arb Waveform Generator > Multicarrier Off On .
3. Press Multicarrier Define > Initialize Table > Carrier Setup > EDGE > Done .
4. Highlight the Freq Offset value (500.000 kHz) for the carrier in row 2, and

press Edit Item > 625 > kHz .
5. Highlight the Power value (0.00 dB) for the carrier in row 2, and press Edit Item > 10 > dB .
You have a custom 2–carrier EDGE waveform with a carrier at a frequency offset of
625 kHz
and a power level of
10.00 dBm.
6. Press Return > Digital Modulation Off On .
This generates a waveform with the custom multicarrier EDGE state. The display changes to Dig
Mod Setup: Multicarrier (Modified)
. During waveform generation, the DIGMOD and I/Q
annunciators appear and the new custom multicarrier EDGE state is stored in volatile memory.
7. Set the RF output frequency to 890.01 MHz.
8. Set the output amplitude to
10 dBm.
9. Press RF On/Off .
The custom multicarrier EDGE waveform is available at the RF OUTPUT connector; it does not
include bursting or channel coding.
10. Press Mode > Custom > Arb Waveform Generator , where Digital Modulation Off On is the first softkey.
11. Press Multicarrier Off On > Multicarrier Define > More (1 of 2) > Load/ Store > Store To File .
If there is already a file name from the Catalog of MDMOD Files occupying the active entry
area, press
Edit Keys > Clear Text .