Ametek 7270 Instruction Manual page 161

MENABLE [n] Oscillator amplitude/frequency modulation enable command
The value of n enables the oscillator amplitude modulation function in accordance
with the following table:
n Function
0 Oscillator amplitude/frequency modulation disabled
1 Oscillator amplitude modulation enabled
2 Oscillator frequency modulation enabled
AMCENTERV[.] [n]
The value of n sets the oscillator amplitude modulation center voltage; in fixed point
mode n is an integer in the range -10000 to +10000, corresponding to voltages from -
10.000 V to +10.000 V, and in floating point mode it is in volts.
Note: The span voltage plus the center voltage cannot exceed
AMDEPTH [n] Oscillator amplitude modulation depth control
The value of n sets the oscillator amplitude modulation depth in percent, from 0 to
100
AMFILTER [n] Oscillator amplitude modulation filter control command
The value of n sets the oscillator amplitude modulation voltage low-pass filter
control in the range 0 to 10. The value of 0 gives the widest bandwidth for this filter,
with the value of 10 the lowest.
AMSOURCE [n] Oscillator amplitude modulation voltage source command
The value of n selects the source of signal used to modulate the oscillator amplitude
in accordance with the following table:
n Function
0 ADC 1 input
1 Signal from external reference channel.
AMVSPAN[.] [n] Oscillator amplitude modulation voltage span command
The value of n sets the oscillator amplitude modulation span voltage; in fixed point
mode n is an integer in the range 0 to +10000, corresponding to a range from
0.000 V to 10.000 V, and in floating point mode it is in volts.
Note: The span voltage plus the center voltage cannot exceed
FMCENTERF[.] [n]
In fixed point mode n sets the oscillator frequency modulation center frequency in
mHz. The range of n is 0 to 250000000 representing 0 to 250.0 kHz; in floating point
mode n sets the center frequency in Hz. The range of n is 0 to 2.5E5
Note: The span frequency plus the center frequency cannot exceed 250.0kHz; the
center frequency must also be greater than the span frequency.
FMCENTERV[.] [n]
The value of n sets the oscillator frequency modulation center voltage; in fixed point
mode n is an integer in the range -10000 to +10000, corresponding to voltages from -
10.000 V to +10.000 V, and in floating point mode it is in volts.
Note: The span voltage plus the center voltage cannot exceed
Chapter 6, COMPUTER OPERATION
Oscillator amplitude modulation center voltage command
Oscillator frequency modulation center frequency command
Oscillator frequency modulation center voltage command

10.000 V

10.000 V

10.000 V
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