AEA E20/20 Avionics [6021-5154] Time Domain Reflectometer (TDR) Kit. The TDR Avionics Kit is designed specifically for testing and fault locating on aircraft wiring. The Step TDR is ideal for troubleshooting all types of coax, twisted pairs, single-wires in a harness, and aircraft power cables. Use "Step TDR" technology's amazingly accurate display and locating ability to save time and money. The kit includes connection adapters for mating with aircraft wiring harness style connectors making testing fast and convenient. Additionally, the TDR, manuals, PC software and accessories are all in a rugged anti-FOD carrying case designed for flight line and aircraft use. ETDR PC Vision™ software can upload, save, and print test results, and customize the TDR's cable list for specific aircraft as desired. Designed specifically for aviation applications the Avionics TDR Complete Kit is contained in an ATA-3000 Class 1 carrying case. The custom foam is designed to hold the E20/20 TDR and accessories securely to prevent FOD and the lid label provides a clear indication of what item should be in every foam cut-out location. The E20/20 TDR has both BNC and RJ-45 test ports and an aviation customized cable list in the memory. The list provides quick access to a variety of common aviation coax, twisted pair and single-wires' impedances and velocity factors.