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NUMERICAL INDEX
TFNo.
11-1384 Loading and Unloading Poles
Loading and unloading poles from flatcar or trailer — Safety precautions (21 min — 1944 — Film Reference).
11-1385 Technical Principles of Radar — Part I: Introduction
Basic theory — Nomenclature — Types — Detection-search aircraft warning, homing, and navigational aid — PPI — Solving problems with radar (22 min — 1945 — Film Reference).
11-1386 Technical Principles of Radar— Part II: Mechanics
Mechanical components producing electrical pulse that detects enemy targets (22 min — 1945 — Film Reference).
11-1387 Technical Principles of Radar— Part III: Indicators
Cathode-ray tubes — Type A and plan position indicator — Components of the scope — Formation of visible dot on fluorescent screen — Base line — Pip (45 min — 1946 — Film Reference).
11-1397 Facsimile Equipment RC-120— Part I: Theory and Description
Transmitting and receiving facsimile copies of photographs, messages, diagrams, and maps (20 min — 1944 — Film Reference).
11-1398 Facsimile Equipment RC-120— Part II: Operation
Direct recording process — Advantages of facsimile process (23 min — 1944 — Film Reference).
11-1406 Erecting Large Poles
Three methods of erecting large poles with equipment normally issued to signal construction units — Blasting a hole into ground unsuitable for digging methods (26 min — 1945 — Film Reference).
11-1420 Radar AntiJamming For the Radar Operator— Part I— Receiver Adjustments (U) (29 min— 1945— Film is classified CONFIDENTIAL.)
11-1421 Radar AntiJamming for The Radar Operator — Part II — Recognition ,; of Electronic Jamming (U)
(28 min— 1945— Film is classified CONFIDENTIAL.) 11-1422 Radar Anti-Jamming for The Radar Operator— Part III— Window
L-.oi * ;•.>„»{ (U)
(32 min— 1945— Film is classified CONFIDENTIAL.)
11-1425 Preventive Maintenance Practices for Ground Signal Equipment
Preventive maintenance at depots, in transport, and in use — FITCAL system of maintenance — Precautions against fungus growth, dust, heat, and humidity (19 min — 1945 — Film Reference).
11-1553 Basic Telephony
Operating principles — Schematic and wiring diagrams — Four circuits — Transmitter (primary), receiver (secondary), generator, and ringer (20 min — 1949 — Film Reference) .
11-1555 Multiple Switchboards— Installation and Operation
Organization of typical field army — Telephones and switchboards used from forward observation posts to army headquarters — Advantages of multiple switchboards over interposition trunking of switch
.