R&S ZVB - Page 899

R&S
®
ZVA / R&S
®
ZVB / R&S
®
ZVT Command Reference
SCPI Command Reference
Operating Manual 1145.1084.12 – 30 884
[SENSe<Ch>:]FREQuency:CONVersion:ARBitrary <numerator>, <denominator>,
<offset>, CW | FIXed | SWEep
Defines the receiver frequency for frequency-converting measurements. The receiver frequency is either a
range (for frequency sweeps) or a CW frequency (for power, time and CW Mode sweeps). The receiver
frequency is valid for all ports.
The frequency formula is applied even if the analyzer returns an error message, because the
frequency is outside the allowed range.
<Ch>
Channel number.
<numerator>
<denominator>
<offset>
Parameters of the frequency formula. The receiver frequency f
r
is calculated
according to
f
r
= <numerator>/<denominator>*f
b
. + <offset>
where f
b
represents the channel base frequency (parameter SWEep). For
parameters CW or FIXed, f
b
= 0.
The conversion formula for f
r
is ZVR-compatible but differs from manual
control where the ratio <numerator>/<denominator> also multiplies the <offset>.
Range [def. unit]
The converted frequency or frequency range must be within the analyzer's
frequency range, depending on the instrument model [Hz]. In addition the
following restrictions apply:
<numerator> – Values are rounded to positive or negative integer numbers;
zero is not allowed [1]
<denominator> – Values are rounded to positive integer numbers [1]
<offset> – Values are rounded to (positive or negative) multiples of 1 Hz [Hz].
*RST value
The default frequency/frequency range corresponds to the sweep range or CW
frequency of the analyzer, i.e.
<numerator> = <denominator> = 1
<offset> = 0 Hz
Sweep type
Parameters
SWEep – The full formula is applied. For frequency sweeps, the command
defines a sweep range.
CW | FIXed – The reduced formula with f
b
= 0 is applied. f
r
= <offset>; the
command defines a fixed frequency.
*RST value
SWEep
SCPI, Command
Types
Device-specific, command or query.
Example:
*RST; FREQ:STAR 1E+9; STOP 1.1E+9
Reset the analyzer (activating a frequency sweep) and set the sweep range
between 1 GHz and 1.1 GHz.
SENS:FREQ:CONV:ARB 2,1,1E+9,SWE
Convert the receiver frequency to the range between 3 GHz and 3.2 GHz.
[SENSe<Ch>:]FREQuency:CONVersion:ARBitrary:PMETer<Mtr> <numerator>,
<denominator>, <offset>, CW | FIXed | SWEep
Defines the receiver frequency of a power meter used for frequency-converting measurements. The
receiver frequency is either a range (for frequency sweeps) or a CW frequency (for power, time and CW