Through Hole is used for RF Transceiver' mounting.For optimal performance, this RF Transceiver module makes use of the Bulk package.3.3V voltage can be supplied by the RF Transceiver.RF Transceiver Modules operate at 2.4GHz~2.48GHz Hz.
WRL-13252 Features
Through Hole Bulk package 3.3V volts
WRL-13252 Applications
There are a lot of SparkFun Electronics WRL-13252 RF Transceiver Modules applications.