3 Short-Range Comms & IoT Mode
3.11 IQ Waveform Measurement
Selection Example Note
Off :POW:GAIN OFF
Low Band :POW:GAIN ON
:POW:GAIN:BAND
LOW
Sets the internal preamp to use only the low band. The
frequency range of the installed (optional) low-band
preamp is displayed in square brackets on the Low Band
selection in the dropdown
Full Range :POW:GAIN ON
:POW:GAIN:BAND
FULL
Sets the internal preamp to use its full range. The low
band (0-3.6GHz, 0-3.4GHz, 0-3GHz, depending on the
model) is supplied by the low band preamp and the
frequencies above low band are supplied by the high
band preamp
The frequency range of the installed (optional) low-band
preamp is displayed in square brackets on the Full
Range selection in the dropdown. If the high band option
is not installed the Full Range selection does not appear
NOTE
The maximum Center Frequency for Low Band, displayed in square brackets,
can change based on the selected IFBW for measurements that support IFBW
(for example, Waveform measurement across all Modes that support it). In
certain models (such as N9042B & N9032B), IFBW values <= 40MHz have a
maximum Low Band frequency of 3.6GHz, while 40MHz < IFBW <= 1GHz
have a maximum of 3.3GHz, and 1GHz < IFBW <= 1.5GHz have a maximum of
3.5GHz. IFBW values > 1.5GHz do not support a Center Frequency that can
reach the Low Band maximum frequency. In these cases, N/A is displayed in the
square brackets for Low Band.
Remote Command
[:SENSe]:POWer[:RF]:GAIN:BAND LOW | FULL
[:SENSe]:POWer[:RF]:GAIN:BAND?
Example
:POW:GAIN:BAND LOW
:POW:GAIN:BAND?
Dependencies Not available on all hardware platforms. If the preamp is not present or is unlicensed, this control is
not shown
Does not appear in VXT Models M9410A/11A/15A/16A nor in M9410E/11E/15E/16E
If :POW:GAIN:BAND FULL is sent when a low band preamp is available, the preamp band
parameter is set to LOW instead of FULL, and an "Option not installed" message is generated
Not available when the electronic/soft attenuator is enabled
Preset
LOW
State Saved Saved in instrument state
Annotation When the USB Preamp is not connected to USB, the Preamp annotation in the Meas Bar says “Off” if
the preamp is off and displays the frequency range of the low band or full range preamp depending on
the setting. For example, if the Preamp is set to Low Band and the Low Band is 3.6GHz the annotation
says “3.6GHz”. If it is a 13.6GHz preamp and it is set to Full Range the annotation says “13.6GHz”
Short Range Comms & IoT Mode User's &Programmer's Reference 1545
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