Rohde & Schwarz AM 300, Руководство по эксплуатации

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R&S AM300 Arbitrary and Function Generator
Operating manual, 02/2005 6-75 E-1007.9922.12
6.2.1.2 Setting the Frequency of the Current Waveform
Application The frequency for the currently applicable waveform can be set in relation to
a channel ( 6-72). When frequency coupling is
on ( 6-175) the frequency
setting also applies to the other channel.
Instead of entering a frequency in the case of the Pulse waveform, enter the
pulse period in the WAVE PARAM menu ( 6-108).
Setting the
frequency
1. In the menu press the function key .
The entry field for the frequency is displayed together with the current
setting. The default is "1 kHz".
2. Enter a new value ( 5-55).
The permissible entry range for the frequency depends on the current
waveform:
f
min
≤
frequency
≤
f
max
in 10 µHz steps
where: f
min
- minimum frequency
f
max
- maximum frequency
Waveform f
min
f
max
Sine 10 µHz 35 MHz
Triangle, Ramp 10 µHz 500 kHz
Square 10 µHz 500 kHz
Exponential 10 µHz 500 kHz
Noise 35 MHz (bandwidth)
Square Low Jitter 10 µHz 50 MHz
Pulse 100 µHz 16.6667 MHz
Frequency range of
the waveforms
Arbitrary Normal 10 µHz 35 MHz
Arbitrary Sample Accurate 10 µHz 100 MHz (sample rate)
Note
The Noise waveform is a sequence of 262144 random numbers stored in the
waveform memory. When the signal is being generated it therefore exhibits a
periodicity which is dependent on the signal frequency setting. The repetition
frequency is at its lowest when the signal frequency is 381.46973 Hz .
If the noise signal is also frequency-modulated with the aid of a noise signal,
a suitable choice of parameter can reduce the periodicity to < 3 mHz.