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Chapter 5 433
One-Button Measurement Functions
Meas Setup (Multi-Carrier Power—MCP)
One-Button Measurement Functions
5.19.3.3 Ref Carrier Freq
Press
Ref Carrier Freq (Man) to select the reference carrier frequency for this measurement.
The center frequency is then calculated using the algorithm below:
1. Cntr Freq 1 = Ref Freq − [0.5 (Carrier Width of Ref Carrier)]
2. Cntr Freq 2 = Cntr Freq 1− (Total of all Carrier Widths excluding the Ref Carrier
Width)
3. Cntr Freq = Cntr Freq 2 + [(Total of all Carrier Widths)/2]
Pressing
Ref Carrier Freq (Auto) distributes the carriers evenly around the current center
frequency. The reference carrier frequency is then calculated using the algorithm below:
1. Ref Freq 1 = Cntr Freq − [(Total of all Carrier Widths)/2]
2. RefFreq2=RefFreq1+ (Total of all Carrier Widths excluding the Ref Carrier Width)
3. Ref Freq = Ref Freq 2 + [0.5 (Carrier Width of Ref Carrier)]
The above procedure ensures carrier visibility on the analyzer display.
Key Path:
Meas Setup, Carrier Setup
Dependencies/
Couplings: The reference carrier can be re-assigned by implementing changes to
carrier power present values.
State Saved: Saved in instrument state.
Factory Preset: Auto/Calculated based on current center frequency. Refer to the
“algorithm” above when defining the Ref Carrier Freq(Auto) key.
Terminators: Hz, kHz, MHz, GHz
Default Terminator GHz
Resolution: 1 Hz
Knob Increment: Span ÷ 50
Step Key
Increment: If
CF Step(Auto) is selected: span/10.
If CF Step(Man) is selected: CF Step
Range: Analyzer minimum to analyzer maximum
History Added with firmware revision A.03.00.
Remote Command:
[:SENSe]:MCPower:RCFRequency<Freq>
[:SENSe]:MCPower:RCFRequency?
[:SENSe]:MCPower:RCFRequency:AUTO OFF|ON|0|1
[:SENSe]:MCPower:RCFRequency:AUTO?