Multikilowatt transmitter study for space communications satellites, volume 2
Multikilowatt transmitter study for space communications satellites - amplifier designs
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Multikilowatt transmitter study for space communications satellites - amplifier designs
Low power blood flow transmitter to determine cardiovascular response to weightlessness
Transmitter allows transmission of rotational or single planar arc motion through hermetically sealed chamber without use of dynamic seals or complex mechanisms. Device may interest pressure vessel designers and those who need to isolate equipment from a hostile environment.
Design, development, and fabrication of 30 watt, high efficiency FM transmitter by utilizing phase lock techniques
Design and construction of system for measuring frequency of S band, FM TV transmitter
Temperature telemetric transmitter with frequency determining tank circuit for short range transmission
Breadboard model of high power UHF transmitter for space communication satellite
S band frequency modulated television transmitter with sampled automatic frequency control designed to drive traveling-wave-tube amplifier
Optical transmittance of fused silica at elevated temperatures during high energy electron bombardment
Sodium salicylate disk for transmittance measurements in magnesium oxide coated integrating sphere
Effects of exhaust deposits from 22.5 newton thrust, bipropellant, attitude control engine on transmittance in 0.2 to 0.6 and 0.32 to 2.2 micron ranges
Venus-Mercury flyby vehicle solar cells, cover glasses, adhesives and Kapton film, investigating space radiation effects on solar absorptance and transmittance
Atmospheric transmittance measurement errors in determining temperature, water vapor and ozone distributions from satellite remote sensing
Pill-sized transmitter measures deep body temperature in studies of circadian rhythm and indicates general health. Ingestible device is a compromise between accuracy, circuit complexity, size and transmission range.
Simple and convenient technique has been found for extending transmittance measurement capability of conventional magnesium oxide coated integrating sphere system at low (near ultraviolet) wavelengths. Technique can be used to determine effect of contaminants on window materials and can also be used for measurements on thermal control coatings and telescope mirrors.
Assembly drawings, logic schematics, and circuit schematics useful in maintaining the equipment of the DC/EC digital test system are reviewed. The drawings are organized in accordance with the reference designations of the hardware. The transmitter subsystem assembly drawings are emphasized.
A 200 watt SHF transmitter experiment package is discussed that incorporates a traveling wave tube utilizing a multistage depressed collector for efficiency enhancement. This experiment is being developed for flight testing on the CTS (Communications Technology Satellite).
Values of band oscillator strengths and rotational line widths for the Schumann-Runge band system have been used to derive interpolation constants from which the transmittance and rate of dissociation of molecular oxygen can be calculated. These constants, valid for temperatures between 150 and 300 K and for column densities between 1 x 10 to the 17th power/cm sq and 7 x 10 to the 24th power/cm sq, cover the wavelength range 1750 and 2050A.