Ametek 7270 Instruction Manual page 159

SYNCOSC [n] Synchronous Oscillator control
When external reference mode is active, the parameter n sets the synchronous
oscillator output in accordance with the following table:
n Function
0 The oscillator is independent of the external reference frequency
1 The oscillator is a sine wave at the same frequency as the applied reference
signal but subject to any phase shift set by the phase control.
ASTART[.] [n] Oscillator amplitude sweep start amplitude
Sets the start amplitude for a subsequent sweep of the internal oscillator amplitude,
in the range 0 to 5.000 V
In fixed point mode, n is in microvolts rms, and in floating point mode n is in volts
rms
ASTOP[.] [n] Oscillator amplitude sweep stop amplitude
Sets the stop amplitude for a subsequent sweep of the internal oscillator amplitude,
in the range 0 to 5.000 V
In fixed point mode, n is in microvolts rms and in floating point mode n is in volts
rms
ASTEP[.] [n] Oscillator amplitude sweep step size
Sets the amplitude step size for a subsequent sweep of the internal oscillator
amplitude, in the range 0 to 5.000 V
In fixed point mode, n is in microvolts rms and in floating point mode n is in volts
rms
OF[.] [n] Oscillator frequency control
In fixed point mode n sets the oscillator frequency in mHz. The range of n is 0 to
250,000,000 representing 0 to 250 kHz.
In floating point mode n sets the oscillator frequency in Hz. The range of n is 0 to
2.5E5
FSTART[.] [n] Oscillator frequency sweep start frequency
Sets the start frequency for a subsequent sweep of the internal oscillator frequency,
in the range 0 to 250 kHz.
In fixed point mode, n is in millihertz, and in floating point mode n is in hertz.
FSTOP[.] [n] Oscillator frequency sweep stop frequency
Sets the stop frequency for a subsequent sweep of the internal oscillator frequency,
in the range 0 to 250 kHz.
In fixed point mode, n is in millihertz and in floating point mode n is in hertz.
FSTEP[.] [n n ] Oscillator frequency sweep step size and type
1 2
The frequency may be swept either linearly or logarithmically, as specified by
parameter n . The step size is specified by parameter n
2
Log sweep n = 0
2
In fixed point mode, n
Chapter 6, COMPUTER OPERATION
is the step size in thousandths of a percent.
1
.
1
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