Lightweight Surveillance Radar AN/PPS-9.

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Abstract:

During the reporting period, the ANPPS-9 Engineering Model was assembled in an open frame for subsystem test. After testing had begun, noise problems were encountered. Testing was then concentrated on subsystems and subunits in order to isolate noise sources and proceed with corrective action. Modifications to the wiring harness and the DCDC Converter contributed only minor improvements in the SN measurement. Suspicion then centered on the avalanche diode source and the hot carrier diode mixer the latter was exonerated through testing. Difficulty was encountered in obtaining a CW source to substitute for the avalanche diode due to the required source SN. The RCA Microwave Advanced Research group at the RCA Princeton Laboratories provided a TEO Transfer Electron Oscillator or Gunn diode which was placed in a modified avalanche diode cavity and tested. The results demonstrated that the avalanche diode was the major noise contributor. Radar results using the TEO were encouraging. Additional TEOs are now being procured, and an optimum cavity and TEO power supply module are being designed and fabricated.

Author(s):
O'brien, J. F. ; Hicks, H. T.
Author Organization(s):
RADIO CORP OF AMERICA MOORESTOWN NJ MISSILE AND SURFACE RADAR DIV
Descriptive Note:
Quarterly rept. no. 3, 1 Nov 68-31 Jan 69,
Pagination:
0024

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
ECOM-0333-3
Contract/Grant Number(s):
DAAB07-68-C-0333
Task Number(s):
1Z664705D51305
Project Number(s):
DA-1-Z-664705-D-513
Monitor Series:
0333-3
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*SEARCH RADAR, *ACQUISITION RADAR, PERFORMANCE(ENGINEERING), PORTABLE EQUIPMENT, RADAR TRANSMITTERS, NOISE(RADAR), DC TO DC CONVERTERS, HUMAN FACTORS ENGINEERING, SAFETY BELTS, POWER SUPPLIES, CAVITY RESONATORS, MAINTENANCE, RELIABILITY(ELECTRONICS), ASSEMBLY, QUALITY CONTROL
Field(s)/Group(s):
Active and Passive Radar Detection and Equipment
Keyword(s):
*AN PPS 9, GUNN EFFECT, OSCILLATORS, TRIPODS
Report Date:
1969 May 01