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85071 GRL calibration

Question asked by HUANG on Jun 2, 2009
Latest reply on Jun 14, 2009 by stoyan_ganchev
In 85071, the menu of the free space calibration includes three items: 1. perform GRL cal; 2. perform gated resp/iso cal; 3. apply gated resp/iso cal. I have tried different combinations of these calibrations as follows:

1. select the first item and perform the GRL cal only;
2. select the second item and perform the gated resp/iso cal only;
3. select the first item and perform the GRL cal; then select the second item and perform the gated resp/iso cal.


But it seems that only the second method above produces resonable results. But according to my understanding, it is the GRL cal that should be performed first. THen the gated resp/iso calibration should be perform to reduce the multiple reflection between the antennas.

To summarize, my question is what is the correct procedure to perform the free space calibration in 85071?  

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