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RIGOL
is (the basic waveform frequency÷ 2
frequency dividing coefficient and it is 1 when the frequency of the basic
waveform is greater than 30 MHz and less than or equal to 60 MHz.
3)
Noise: there is no sync signal output.
2. Harmonic
For harmonics, the sync signal is a Square with 50% duty cycle, and its
frequency is the same as that of the fundamental waveform. When the first
waveform point is output, the sync signal is TTL high level.
3. Arbitrary Waveform
For arbitrary waveforms, the sync signal is a Square with 50% duty cycle, and
its frequency is the same as that of the arbitrary waveform. When the first
waveform point is output, the sync signal is TTL high level.
4. Modulated Waveform
1)
When internal modulation source is selected, the sync signal is a Square
with 50% duty cycle.
For AM, FM, PM, and PWM, the frequency of the sync signal is the
⚫
modulating frequency.
For ASK, FSK, and PSK, the frequency of the sync signal is the
⚫
modulating rate.
2)
When external modulation source is selected:
The terminal is used to receive the external modulation signal, and there
is no sync signal output.
5. Sweep Output Waveform
1)
When the internal or manual trigger source is selected:
For the sweep with "Marker Freq" off:
⚫
The sync signal is a Square with 50% duty cycle. The sync signal is
TTL high level at the start of the sweep and changes to low level at
the mid-point of the sweep. The frequency of the sync signal is the
reciprocal of the sum of the specified sweep time, return time, start
hold, and stop hold time.
For the sweep with "Marker Freq" on:
⚫
For linear and log sweep, the sync signal is TTL high level at the start
of the sweep and changes to low level at the marker frequency.
For step sweep (the sweep points determined by the start frequency,
stop frequency, and step respectively are f
the marker frequency setting is one of the sweep points values, the
sync signal is TTL high level at the start of the sweep and will change
to low level at the marker frequency point. If the set marker
frequency is not equal to the value at the sweep point, the sync
signal will change to low level at the sweep point which is closest to
2-84
Chapter 2 Front Panel Operations
n
). Wherein, n represents the
, f
, ......, f
1
2
, f
......), if
n
n+1
DG2000 User Guide
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