RF Generator

Last Updated: August 29, 2007

The RF Generator tab on the RF Control window provides access to the RF Generator (source) parameters.

• Control Mode

• Band Class

• Channel

• Frequency

• Output Power

• Modulation Mode

• Modulation Frequency

• Modulation Depth

• Modulation Deviation

• Waveform File

• Run Mode

• External ARB Output Trigger

• Output Port

Control Mode

This parameter sets the RF generator frequency control mode, either Auto or Manual. When set to Manual, you can specify the RF generator frequency.

SCPI command: RFGenerator:CONTrol:FREQuency:AUTO:CCALibration[?]

Band Class

This parameter sets the RF generator's band class. See Supported Band Classes for details on which band classes are supported by the test set.

SCPI command: TRANsceiver:BAND:CCALibration[?]

Channel

This parameter sets the physical channel number for the specified Band Class.

SCPI command: TRANsceiver:CHANnel[:SELected]:CCALibration

Frequency

This parameter sets the RF generator frequency.

SCPI command: RFGenerator:FREQuency:CCALibration[?]

Output Power

This parameter sets the RF generator power level.

SCPI command: RFGenerator:POWer:[SAMPLitude]:CCALibration[?]

Modulation Mode

This parameter sets the RF generator modulation mode. The following selections are available:

• Continuous wave (CW)

• Amplitude modulation (AM)

• Frequency modulation (FM)

• Double sideband suppressed carrier (DSB-SC)

• Arbitrary waveform generator (ARB)

SCPI command: RFGenerator:MODulation:CCALibration[?]

Modulation Frequency

This parameter sets the RF generator modulation frequency. This setting only applies when the modulation mode is set to AM, FM, or DSB-SC.

SCPI command: RFGenerator:MODulation:FREQuency:CCALibration[?]

Modulation Depth

This parameter sets the RF generator AM depth. This setting only applies when the modulation mode is set to AM.

SCPI command: RFGenerator:MODulation:AM:DEPTh:CCALibration[?]

Modulation Deviation

This parameter sets the RF generator FM deviation. This setting only applies when the modulation mode is set to FM.

SCPI command: RFGenerator:MODulation:FM:DEViation:CCALibration[?]

Waveform File

This parameter sets the arbitrary waveform (ARB) file from the ARB random access memory (RAM) disk directory.

When a file is selected it is loaded into the ARB memory so that it can be run.

The following waveforms are available:

• CDMA2k_5Channel
  This waveform comprises of an 80 ms long IS95 signal containing the following code channels:

• a Pilot Channel at -7dB,

• Sync Channel at -16dB,

• a Paging Channel at -12 dB,

• a 9.6 kbps Traffic Channel at -15 dB, and

• an OCNS channel at -1.67 dB

• CDMA2k_6Channel
  This waveform comprises of an 80 mSec long IS-2000 signal containing the following code channels:

• a Pilot Channel at -7dB,

• Sync Channel at -16dB,

• a Paging Channel at -12 dB,

• a RC3 9.6 kbps Traffic Channel at -15 dB,

• a RC3 153.6 kbps Supplemental Channel at -6 dB, and

• an OCNS channel at -3.67 dB

• 1xEVDO_QPSK
  This waveform comprises of a one frame (26.6667mSec) 1xEV-DO signal containing the following code channels:

• a Pilot Channel,

• a MAC Channel, and

• a QPSK 38.4 kbps Traffic Channel

• CDMA2k_8PSK
  This waveform comprises of a one frame (26.6667mSec) 1xEV-DO signal containing the following code channels:

• a Pilot Channel,

• a MAC Channel, and

• a 8-PSK 1536 kbps Traffic Channel

• CDMA2k_16QAM
  This waveform comprises of a one frame (26.6667mSec) 1xEV-DO signal containing the following code channels:

• a Pilot Channel,

• a MAC Channel, and

• a 16-QAM 2.4 Mbps Traffic Channel

SCPI command: RFGenerator:AWAVeform:SELection[?]

External ARB Output Trigger

This parameter sets the external ARB output trigger. The external trigger drives the rear panel BBP TRIG OUT BNC connector. The Modulation Mode must be set to Arbitrary Waveform generator (ARB) for this parameter to take affect.

SCPI command: RFGenerator:AWAVeform:TRIGger:EXTernal[:OUTput][?]

Run Mode

This parameter sets the ARB run mode. Setting this command to:

• Run starts running the ARB file from the beginning.

• Stop provides no output and turns the TSP IF off.  

SCPI command: RFGenerator:AWAVeform:RUN[?]

Output Port

This parameter sets the RF output port destination: RF In/Out or RF Out Only.  

SCPI command: RFGenerator:OUTPut[:DESTination][?]