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Chapter 4, Description of Fields
Fields
Center Freq (CDMA)
This field sets the center frequency of the CDMA spectrum analyzer. This field is
displayed when the
Controls field is set to Main and the RF Display
field on the CONFIGURE screen is set to Freq
.
GPIB Example
“RFAN:FREQ 850MHZ“
sets the center frequency to 850 MHz.
See Also
RF Display
field description, on page 367
Screens Where Field is Present
CDMA REVERSE CHANNEL SPECTRUM
Change
This field defines the type of power control bits that will be sent to the mobile
station when
Execute is selected. The range over which the mobile station will
be commanded to change its power level is determined in the
Steps field.
• n Up sends a series of “0” power-control bits, causing the MSUT to increase its power,
then returns to the "normal" sequence.
• sends a series of “1" power-control bits, causing the MSUT to decrease its power, then
returns to the "normal" sequence.
• Ramp sends a series of "n up" followed by a series of "n down" bits.
GPIB Example
“DISP CTXR;CDMA:PCONtrol:CHANge ‘n up’”
selects “n up” power control steps.
Operating Considerations
See "Closed Loop Pwr Cntl" on page 203
.
Screens Where Field is Present
CDMA TRANSMITTER POWER RANGE TEST