A Standard for RF Modulation Factor,

reportActive / Technical Report | Accession Number: ADA081315 | Open PDF

Abstract:

A modulation factor standard has been developed to support the Federal Aviation Administrations requirements for a measurement capability for the ILS and VOR navigation systems. The standard consists of both a precision modulation meter and a stable amplitude-modulated signal source. Although designed primarily for ILS and VOR signals, it has general purpose capabilities within an rf range of 10 MHz to 500 MHz and an af range 20 Hz to 20 kHz. Measurement uncertainty is less than 0.11 percent modulation below 90 percent modulation for ILSVOR tones of 90 Hz and above, and is somewhat greater at 30 Hz. Included are a circuit description and an error analysis. Author

Author(s):
Arthur, M. G. ; Reeve, G. R.
Author Organization(s):
NATIONAL BUREAU OF STANDARDS WASHINGTON DC NATIONAL ENGINEERING LAB
Pagination:
0090

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
NBS-TN-1016, FAA-RD-79-94
Monitor Series:
79-94
 Subject Terms
Joint Capability Areas:
JCA_6.1.3_Switching and Routing; JCA_6_Net Centric; JCA_6.1.1_Wired Transmission; JCA_6.1_Information Transport; JCA_5_Command and Control; JCA_8.1.3_Influence Adversary and Competitor Audiences; JCA_8.1_Communicate; JCA_8_Building Partnerships; JCA_5.3_Planning; JCA_6.3.3_Spectrum Management; JCA_1_Force Support; JCA_6.4.1_Secure Information Exchange; JCA_4.3_Maintain; JCA_6.3_Net Management; JCA_1.2.5_Lessons Learned; JCA_1.2_Force Preparation; JCA_6.4_Information Assurance
Modernization Areas:
Directed Energy
Communities of Interest:
Advanced Electronics
Descriptor(s):
*RANGE FINDING, *SIGNAL GENERATORS, *AMPLITUDE MODULATION, *INSTRUMENT LANDINGS, MEASUREMENT, TEST METHODS, STANDARDIZATION, INSTRUMENTATION, VERY HIGH FREQUENCY, DYNAMIC RANGE, AUDIO FREQUENCY
Field(s)/Group(s):
Cybernetics, Radiofrequency Wave Propagation
Keyword(s):
Modulation factors, Tone generators, Ratio meters
Report Date:
1979 Sep 01