Common Digitizer (FYQ-47) Radio Frequency Interference Measurements at the Elwood, New Jersey, Long Range Radar Site.

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Abstract:

Operating Long Range Radar Sites LRRS have reported that the Common Digitizer CD interferes with the Back-Up Emergency Communications BUEC equipments when the CD doors are OPENED for maintenance purposes. This problem was investigated. The investigation consisted of making Radio Frequency Interference RFI field strength measurements at various locations, both inside and outside the LRRS building as well as on the roof and radome catwalk. The measurements were made for various combinations of equipments being on with the CD doors both OPENED and CLOSED. It was determined that the CD with doors OPEN is the major source of RFI. The radiating source within the CD was traced to its core memory. With the CD doors CLOSED, RFI is reduced to negligible levels furthermore, the roof of the building reduces the CD RFI to negligible proportions. Modified author abstract

Author(s):
Apostolakis, George C. ; Fisher, John J., Jr
Author Organization(s):
NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER ATLANTIC CITY N J
Descriptive Note:
Interim rept. Feb-Mar 73,
Pagination:
0057

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
FAA-NA-73-41, FAA-RD-73-123
Project Number(s):
FAA-121-101-110
Monitor Series:
73-123
 Subject Terms
Joint Capability Areas:
JCA_6.3.3_Spectrum Management; JCA_6_Net Centric
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*RADAR EQUIPMENT, *ANALOG TO DIGITAL CONVERTERS, RADIOFREQUENCY INTERFERENCE, RADIOFREQUENCY INTERFERENCE, RADAR STATIONS, ELECTROMAGNETIC COMPATIBILITY, VERY HIGH FREQUENCY, COMMUNICATION AND RADIO SYSTEMS
Field(s)/Group(s):
Active and Passive Radar Detection and Equipment, Radio Communications
Keyword(s):
AN FYQ 47
Report Date:
1973 Oct 01