B&K Precision 4079 - Manual - Manual (Page 31)

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3. Select between triggered (TRIG), burst (BURST) or gated (GATE) mode.
Note: If this is done before turning on sweep, sweep ON selection will automatically reset to default
(which sweeps in continuous mode).
3.6.8 MODULATION Key
Selects the Modulation mode AM, FM or FSK.
To select the output mode, press MODUL key, then press the function key that corresponds to the desired menu option.
F1: AM
If the AM is selected, the following menu is available:
AM Menu
F1: ON/OFF - Selects the Modulation ON or OFF operating mode.
F2: % - Defines the modulation depth (from 0 to 100%)
F3: SHAPE - Defines the modulation shape between SINE, TRIANGLE or SQUARE .
F4: MOD-FREQ - Selects the modulation frequency, from 0.01 Hz to 20.00 KHz.
F5: EXT/INT - Selects and enables the external modulation by an external signal applied to the Modulation
In connector.
F3: FM
If the FM is selected, the following menu is available:
FM Menu
F1: ON/OFF - Selects the Modulation ON or OFF operating mode.