A Very Wide Band Intercept Equipment (QRC-2) for Use in Submarines.
Abstract
The Naval Research Laboratory has developed a Radio and Radar Intercept system having an extremely wide frequency coverage for use in submarines to meet an urgent fleet requirement. The Communications Intercept system covers a continuous range of 15 Kc to at least 265 Mc, limited only by the availability of receivers, which were not part of the development. The Radar Intercept system is complete and is of the "wide open" crystal - video type, the video amplifier being furnished with the equipment. It covers from 2.5 to 12 kmc, the important parts of the "S" and "X1, bands. Two antennas are employed for the complete equipment, a specially developed antenna of the "sleeve-stub" type being used for the Communications system and a small spiral antenna for the Radar system. Both antennas are carried by a type 8 periscope, the sleeve-stub being clamped behind the periscope head and extending 17" above the 'scope, while the spiral antenna is within the 'scopehead, protected by a heavy glass port. The sleeve-stub antenna is designed to withstand hydrostatic pressure in excess of 600 psi and cantilever loading of 150 foot pounds.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 13, 1958
- Accession Number
- ADA296436
Entities
People
- E. G. Becke
- G. W. Kelley Jr.
- R. A. Carpenter
- R. D. Mayo
- V. S. Rose
Organizations
- United States Naval Research Laboratory