Evaluation of Model CXFF Radio Direction Finder

reportActive / Technical Report | Accesssion Number: AD1201654 | Open PDF

Abstract:

The Navy Model CXFF radio direction finder, developed by the Federal Telecommunications Laboratories of New York, under Bureau of Ships contract NXss-30834 was tested to determine the soundness of its operating principles and its suitability for Naval use. The equipment, covering the frequency range 140 - 600 Mc, employs four separate antenna arrays supported by and in front of square flat screens, arranged for mounting as a quadrangle around a ship's mast. The antenna outputs are alternately switched, by electronic means, to the input of a common receiver, the video output of which is synchronously switched through suitable amplifiers and a differentially connected variable resistive network, to a cathode ray tube.

Author(s):
Gleason, R. F. ; Trexler, J. H.
Author Organization(s):
NAVAL RESEARCH LAB WASHINGTON DC
Funding Organization(s):
NAVAL RESEARCH LAB WASHINGTON DC, WASHINGTON , DC
Document Type:
Technical Report/Formal Report
Publication Date:
1946 Jul 23
Pagination:
50

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution Code:
A - Approved For Public Release
Distribution Statement: Public Release

RECORD

Collection: TRECMS
Identifying Numbers
Report Number(s):
NRL-FR-2900
Subject Terms
Modernization Areas:
Microelectronics
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
direction finding, direction finders, frequency, circuits, amplifiers, cathode followers, detectors, power supplies, radio direction finders, resonant circuits, switching, tuned circuits, antennas, errors, indicators, models, sensitivity
Subject Categories:
Navigation, Detection and Countermeasures
Creation Date:
2023 May 23
Update Date:
2023 Jul 21