Generates pre-programmed ciphered test data; generates pre-programmed plain text test data; generates a single or multiple channel test data output; generates 75 baud signal reversals, mark or space; capable of 85, 850 or 200 hz total shift; variable distortion rate 0-40 percent; oper pwr rqmts; 115 vac, 60 hz, 1 phase, 400 ma; no provision for internal battery; o/a dims; 4 in. H, 12 in. Lg, 16 in. W; function; provides end to end, digital, secure and non-secure, communication link messages for testing; provides positive and negative sense keying
