Operating basics
Quick Tips
When a setting f
requency o f an output waveform is higher than 4.9 MHz, a
divided frequency that is lower than 4.9 MHz is output from the Trigger Out.
Seethetablebelow:
Set frequenc
y of output waveform (MHz)
Trigger outp
ut frequency (MHz)
〜4.900 000 000 00 Fs
4.900 000 000 01 to 14.700 000 000 0
Fs/3
14.700 000 000 1 to 24.500 000 000 0
Fs/5
24.500 000 000 1 to 34.300 000 000 0
Fs/7
34.300 000 000 1 to 44.100 000 000 0
Fs/9
44.100 000 000 1 to 50.000 000 000 0
Fs/11
50.000 000 000 1 〜 No signal
NOTE. The Trigger Out signal cannot be output when the instrument outputs a
contin
uous signal higher than 50 MHz.
NOTE. When the instrument outputs a modulation waveform, Trigger Output
signa
l cannot be output if you select External as the modulation source.
Adjusting Parameters of Two Channel Signals (dual-channel models only)
Phase
The AFG3000 series uses phase continuous method to change frequency. When
you change a frequency of a channel, it will affect the phase relationship between
the two channels.
For example, the instrument is generating a 5 MHz sine waveform for both CH1
and CH2 and the phase is adjusted b etween the two channels. If you change the
CH2 frequency to 10 MHz and then return it to 5 MHz, the CH2 phase does
n
ot return to its initial condition. To adjust the phase relationship between the
twochannels,youneedtostopsignalgeneration and restart it. The instrument
provides a function called " Align Phase" to adjust the phase relationship.
AFG3000 and AFG3000C Series User Manual 65
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