CPDLC
Controller Pilot Data Link Communications (CPDLC) is a method by which air traffic controllers can communicate with pilots over a datalink system. CPDLC acts as a replacement for HF when oceanic and VHF over some domestic areas. It is far superior to  HF and has distinct advantages over VHF.
CPDLC provides pilots and ATC several benefits:	Reduced communication on the ATC frequency Increased sector capacities Reduced flightcrew workload More pilot requests can be dealt with simultaneously Reduced probability of miscommunication (e.g. due to call sign confusion) Safer frequency changes, hence fewer loss of communication events.
An FAA Letter of Authority (LOA) grants authority for use of CPDLC in section A056. Application for A056 requires specific equipment capabilities and flightcrew training depending on the geographical area(s) in which you anticipate operating. The process for completing a submission for CPDLC operating authority can be frustrating and time consuming. Our experience dates to the implementation of CPDLC. With AVPRO Resources, Inc. you can focus on operating your flight department while we remain entirely focused on ensuring you obtain operating authorities quickly, efficiently and professionally.
AVPRO Resources, Inc. Phone: (817) 228-4541 Fax: (817) 394-2450 eMail: info@avproresources.com