The DISA PDA-184 software application implements a fully compliant MIL-STD-188-184A data controller. It provides reliable data communications over noisy, low bandwidth channels to support chat, file transfer, and email services via an easy-to-use graphical user interface. The application supports multiple bands and waveforms, including integrated waveform (IW), legacy ultra-high frequency (UHF) satellite communications (SATCOM), UHF line of sight (LOS), very high frequency (VHF), high frequency (HF), and extremely high frequency (EHF) SATCOM. PDA-184 is provided without charge to all combatant commands (CCMDs) / services / agencies (CC/S/A).