Keysight Technologies 8163A/B Programming Manual page 138

4 Measurement Operations & Settings
command: [:SOURce[n]][:CHANnel[m]]:FREQuency:TOGRid
syntax: [:SOURce[n]][:CHANnel[m]]:FREQuency:TOGRid <wsp>
description: Set the frequency to the nearest grid point only changing the channel number.
parameters: The frequency value.
response: None
example: sour4:freq:togr 188.5thz
affects: 81950A
Notes Only available in "Grid Mode"
The frequency offset is neither changed nor taken into account when calculating the nearest channel.
command: [:SOURce[n]][:CHANnel[m]]:FREQuency:AUTO
syntax: [:SOURce[n]][:CHANnel[m]]:FREQuency:AUTO<wsp>OFF|0|ON|1
description: Switch between "Auto Mode" and "Grid Mode"
parameters: OFF or 0: "Grid Mode" (= Auto Mode off)
ON or 1: "Auto Mode"
response: None
example: sour1:freq:auto on
affects: 81950A
Notes This command is equivalent to [:SOURce[n][:CHANnel[m]]:WAVelength:AUTO
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<value>[HZ|KHZ|MHZ|GHZ|THZ]
8163A/B, 8164A/B & 8166A/B Mainframes Programming Guide