R&S ZVB - Page 307

R&S
®
ZVA / R&S
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ZVB / R&S
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ZVT GUI Reference
Channel Menu
Operating Manual 1145.1084.12 – 30 292
 PCor Off enables or disables a source power calibration for an individual port. This function is
available only for ports where a source power calibration is available. It is identical with Source
Power Correction Off in the Source Power Cal menu.
 Slope defines a linear factor to modify the port-specific source power as a function of the stimulus
frequency. The Slope factor increases the power at each sweep point by the following amount:
Power --> Power + <Slope>*<Stimulus Frequency>. Slope is valid for all sweep types.
Impact of the Slope
The channel base power pb is defined by the following sweep settings:
 For a power sweep, the channel base power is equal to the stimulus range.
 For a frequency or CW sweep, the channel base power is a fixed Power value.
The slope modifies the channel power pb so that the following source power ps is obtained at the ports:
ps = pb + <Slope> * f
In the formula above, f denotes the (current) source port frequency.
Examples:
1. Select a frequency sweep with a sweep range between 1 GHz and 4 GHz and set <Power> = 0 dBm,
<Slope> = 2 dB/GHz. Across the sweep range, the stimulus power increases linearly between 2 dBm and
8 dBm.
2. Maintain the <Slope> setting and select a power sweep with a CW frequency of 1 GHz and a power
sweep range between –25 dBm and 0 dBm. Due to the slope factor, the actual stimulus power varies
between –23 dBm and +2 dBm.
With option R&S ZVA-K4, the source power can be modified; see Port-Specific Power.
Remote control:
SOURce<Ch>:POWer<Pt>:STATe ON | OFF
SOURce<Ch>:POWer<Pt>:GENerator:STATe ON | OFF
SOURce<Ch>:POWer<Pt>:PERManent[:STATe] ON | OFF
[SENSe<Ch>:]FREQuency:STARt?
[SENSe<Ch>:]FREQuency:STOP?
[SENSe<Ch>:]SWEep:CW|FIXed?
SOURce<Ch>:POWer<Pt>[:LEVel][:IMMediate]:OFFSet
SOURce<Ch>:POWer[:LEVel][:IMMediate][:AMPlitude]?
SOURce<Ch>:POWer<Pt>:CORRection[:STATe]
SOURce<Ch>:POWer<Pt>[:LEVel][:IMMediate]:SLOPe
SOURce<Ch>:POWer<Pt>:GENerator<Gen>:OFFSet
SOURce<Ch>:POWer<Pt>:GENerator<Gen>:PERManent[:STATe]
Receiver (most settings for R&S ZVA and R&S ZVT only)
Shows and/or defines the receiver settings for each physical port of the analyzer and each external power
meter. No receiver settings are provided for external generators.
Some receiver settings can be defined independently for the reference channel a (the wave generated by
the internal source and measured at the port) and the measurement channel b (the wave from the DUT) at
each port.