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London England United Kingdom 1919 stock footage and images

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Transmission and reception of data, and frequencies and bandwidth considerations in Space Communications.

Space Communications and the related problems and developments. Animation: Additional factors introduces into Space Communications by transmission and reception of data. Frequencies and bandwidths applicable to Space Communications. Factors to be weighed while considering bandwidth: Available power and transmission system required. Narrower bandwidths used to conserve power, they're also less affected by noise interference. Depicts consumption of power by television, spoken word and teletype bandwidths. Telemetry: low bandwidth and power consumption. Explains Telemetry. Theory of Modern Communication and Binary digits or BITS. Depicts information required from outer space like: radio activity level of the moon's surface, abundance of water vapor in the Martian atmosphere, and variation in surface temperature of Mercury. Telemetry utilizes relatively small bandwidth and thus used as preferable mode of communication for research vehicles.

Location: United States USA
Date: 1960
Duration: 3 min 19 sec
Sound: Yes
Color: Color
Clip Type: Edited
Language: English
Clip: 65675031244
Use of video, and the various Orbiting and Satellite Systems in Space Communications.

Space Communications and the related problems and developments. Animation: Use of video for Space Communications requires highly directive antennas for power economy. Depicts enlargement of capture area of antennas located at terrestrial reception points. Efficiency in signal processing of the receiving equipment increased, to reduce intrinsic noise by reducing temperature of components. A satellite in Earth's orbit for space and terrestrial communications. Explains the Passive Sattelite Relay System using reflecting spheres; Single Orbiting Active Satellite System using line of sight communication, ideal for weather forecasting and mapping; and the sophisticated active Day Period Cry Satellite Orbiting System equipped with transponders.

Location: United States USA
Date: 1960
Duration: 4 min 19 sec
Sound: Yes
Color: Color
Clip Type: Edited
Language: English
Clip: 65675031245
View through the windshield of a U.S. Air Force B-47 Stratojet strategic bomber and a KC-135 refueling boom.

A U.S. Air Force B-47 Stratojet strategic bomber in flight. View through windshield showing windshield wiper and out rear cockpit toward tail of aircraft. Aircraft in flight over clouds. KC-135 refueling boom seen attached and detaching. Belly of the B-47. View of the sun through the clouds.

Location: United States USA
Date: 1956, May 30
Duration: 53 sec
Sound: No
Color: Color
Clip Type: Unedited
Language: None
Clip: 65675031246
U.S. Navy destroyer USS Shelton (DD-790) and a U.S. Air Force T-29

Aerial view of U.S. Navy destroyer, USS Shelton (DD-790) sailing. Aerial views of a U.S. Air Force T-29 ("Flying classroom") with radome under fuselage, in flight over water. Clouds over the aircraft. U.S. Air Force roundel on the starboard side of the plane.

Location: United States USA
Date: 1956, May 30
Duration: 2 min 34 sec
Sound: No
Color: Color
Clip Type: Unedited
Language: None
Clip: 65675031247
Teletype machines at a U.S. Air Force Communications Center.

U.S. Air Force Communications Center. U.S. Air Force Communications Service insignia. Control panels of the teletype machines. Labels on panel read 'San Pablo', 'Lajes', 'Kindley', 'Ramey', 'Croughton', and 'Sidi Slimane'. Receivers and dials on the control panel.

Location: United States USA
Date: 1956
Duration: 5 min 32 sec
Sound: No
Color: Color
Clip Type: Unedited
Language: None
Clip: 65675031248
USAF pilot wearing MA-2 helmet in the cockpit of an aircraft in flight

U.S. Air Foce pilot in cockpit of aircraft wearing MA-2 helmet. The pilot in cockpit. Views of the helmet. Shell and faceplate of the helmet.

Location: United States USA
Date: 1956
Duration: 3 min 0 sec
Sound: No
Color: Color
Clip Type: Unedited
Language: None
Clip: 65675031249
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