FUNDAMENTALS OF CARRIER TELEPHONY, PT 1, OPERATION OF A CARRIER SYSTEM
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✎ Suggest a correctionDescribes the features, operation and advantages of the Telephone Carrier System used in today's Army -shows how the Telephone Carrier System provides for operation of several telephone or teletype channels over a single spiral four cable. Explains how different frequency bands are used in transmitting more than one voice over the transmission line at the same time.
Sources
- usgov-av-1974 — title, year, creator, length, color, sound, description
Record added 2026-07-01 03:45:46 · Suggest a correction