The sniffer configurator tool is ready to use in Simplicity Studio V4 after Q4 2018 release.
It's available from the right click menu of a connected Debug Adapter in the Debug adapters panel of StudioV4 or StudioV5.
This tool will work with any device supporting the RailTest sample application. This means it won't work for Modules like the MGM1x or MGM2x and legacy devices like the EM3xx series, see paragraph older device for instruction on how to setup a sub GHz sniffer.
This tool has presets for capturing Zigbee traffic on both 2.4 GHz and sub GHz.
Older devices are using the Nodetest to sniff sub GHz traffic, you find the instruction below
Hardware for setup:
Three WSTK main boards, one BRD4155A radio board, two BRD4150C radio boards.
Set up steps:
>> ./build/exe/SeSampleCommsHubHost.exe -p com2
>> network form 11 3 0x1234
>> network multi-phy-start 28 15 0
>> network pjoin 200
>> commander flash C:\SiliconLabs\SimplicityStudio\v4\developer\sdks\gecko_sdk_suite\v2.2\protocol\zigbee\build\nodetest-cortexm3-iar-efr32mg1p133f256gm48-efr32gb-brd4150c\nodetest.s37
>> setChannel 0x8F
>> network join 0x8F 3 0x1234
Then you can see the package is captured by network analyzer in Simplicity Studio. See below picture for your reference.
Please note, you should make sure the sub-GHz device can join the sub-GHz network successful.