NARDA PMM 1008, User Manual

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3-8 Operating Instruction
3.2.5 SET UP menu
Calibration menu
Using the set menu it is possible to calibrate the system or to change the
antenna factor. It is important to execute the calibration before to do test.
Pressing the SET key from the main menu the display will be the following:
Pressing the CAL key it will be possible to calibrate the system, the display
will be the following :
The calibration will store the position of the internal variac to obtain a
current output current for the field level selected. In this way starting the test
the PMM 1008 will move the variac in the stored position and then will
regulate around it. The calibration can be done for the continuous test
(CONT) or for the short test (SHRT) or both.
Pressing CONT key the PMM 1008 will calibrate all the continuous test
levels, pressing SHRT key the PMM 1008 will calibrate all the short test
levels, pressing FULL key the PMM 1008 will calibrate both the test,
continuous and short.
In the setting mode it is also possible to change the antenna factor. The
antenna factor depends from the shape and the dimensions of the antenna,
setting a different antenna factor it is possible to use a different antenna.
The antenna factor for a square loop are:
Standard Loop - Square loop 1m 0.87
Square loop 1.5 m 0.58
Rectangular loop 2.6x1 0.66
Circular loop 40cm 2.5
Circular loop 1m 1
Square loop 2m 0.435