Modulating Waveform Frequency; Frequency Deviation - Hantek HDG2000B Series User Manual

Other Channel
Other channel: CH1 and CH2 can be used as modulation sources reciprocally. When CH1 is used
as the modulated wave, CH2 can be used as the modulation source. And vice versa.

5.3.5 Modulating Waveform Frequency

When internal modulation source is selected, press Frequency to set the modulating waveform
frequency.
 Input the desired frequency value using the numeric keyboard or direction keys and knob.
 The modulating waveform frequency ranges from 2mHz to 50kHz, and the default value is
100Hz.
Note: This menu will be grayed out and disabled when other modulation sources except the
internal modulation source are selected.

5.3.6 Frequency Deviation

Frequency deviation is the deviation of the modulating waveform frequency relative to the carrier
frequency. Press Deviation to set the FM frequency deviation.
 Frequency deviation must be lower than or equal to the carrier frequency.
 Attempting to set a deviation greater than the carrier frequency will cause the instrument to
set the deviation equal to the carrier frequency.
 The sum of frequency deviation and carrier frequency must be lower than or equal to the sum
of the current carrier frequency upper limit and 1kHz.
When "Ext" modulation source is selected, frequency deviation is controlled by the ± 2.5V signal
level at the [Sync/Mod/Trig] connector at the pront panel. Positive signal level corresponds to
frequency increase and negative signal level corresponds to frequency decrease. The lower the
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