Evaluation of Digital Check Character Generators Used in Teletypewriters

摘要

This report deals with two preproduction digital check character generator (DCCG) models installed in the teletypewriters of the NAS En Route Stage A System Support Facility at the National Aviation Facilities Experimental Center (NAFEC). The purpose of this effort was to determine compliance with the applicable specification and provide technical information on installation, operation, test procedures, and measured characteristics of these models and the required changes to be made in the production units. (Author)