With the widespread deployment of communication infrastructures, concerns about human exposure to electromagnetic fields (EMF) have grown significantly. One major component of this exposure is uplink emissions, which refer to the radiofrequency (RF) signals transmitted from a mobile phone to a base station. Here in this work, we adopt the indirect measurement method, by leveraging the information provided by the phone chipset. The measurement campaign is designed and conducted to cover different network technologies, services, by using the equipment called Nemo from Keysight. Afterwards, the transmit power, as well as the other relevant parameters, are extracted and analyzed. The head exposure is calculated by synthesizing the measured data and developed transfer function.