Power Reference Plane (Frequency)
Power Reference Plane is only visible when an I+jQ Input Channel type is selected. It is currently enabled for use with Vector and IEEE Institute of Electrical and Electronics Engineers. A US-based membership organisation that includes engineers, scientists, and students in electronics and related fields. The IEEE developed the 802 series wired and wireless LAN standards. Visit the IEEE at http://www.ieee.org 802.11 measurement types.
The parameter selects the reference plane to use for power calculations.
(default) - When RF Radio Frequency: A generic term for radio-based technologies, operating between the Low Frequency range (30k Hz) and the Extra High Frequency range (300 GHz). is selected, power calculations are based on measurement at the RF reference plane (before down conversion). In this mode, power is calculated using V2/2R. This mode should be used, for example, when there might be some frequency down conversion before the I and Q digitizers where half of the signal was filtered out and the gain of the I and Q was scaled by a factor of 2 after the filtering but before the VSA software does the combining of the digitized I and Q data, and where it is desirous to know the power referred to the RF plane before the frequency down conversion.
- When Baseband is selected, power calculations are based on measurement at the baseband reference plane (just before digitizing). In this mode, power is calculated using V2/R, resulting in +3dB (2X) power values compared to the RF Reference Plane selection.
See Also
