COMMUNICATIONS RELIABILITY OF TRANSMISSIONS FROM NAVAL RADIO STATION (T) , JIM CREEK, WASHINGTON, NPG AT 24.0 KC/S.

Garner, W. E.

COMMUNICATIONS RELIABILITY OF TRANSMISSIONS FROM NAVAL RADIO STATION (T) , JIM CREEK, WASHINGTON, NPG AT 24.0 KC/S.

Active / Technical Report | Accession Number: AD0369391 | Open PDF

Abstract:

In 1963, the operating frequency of the VLF transmitting station NPG, located near Seattle, Washington, was changed from 18.6 kc to 24.0 kc. Tests were conducted to predict the communication reliability of the NPG 24.0 kc transmissions in the western Pacific Ocean area. Comparison of the experimental and predicted data show very good agreement. The received field strengths, as observed, were slightly higher than predicted. The predicted atmospheric noise levels showed very close agreement with the measured data. The observed communication reliability was about 76 for manual cw, and was predicted to be about 52. For automatic teletype, the observed and predicted reliabilities were 84 and 62, respectively. Therefore, for the ocean area in the vicinity of southeast Japan, the reliability of NPG 24.0 kc transmissions, assuming a radiated power of 250 kw, would be better than predicted.

Author(s):

Garner, W. E.

Author Organization(s):

NAVAL RESEARCH LAB WASHINGTON DC

Descriptive Note:

Interim rept.

Supplementary Note:

DOI: 10.21236/AD0369391

Pagination:

0051

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:

Approved For Public Release

RECORD

Collection: TR

Identifying Numbers

Report Number(s):

NRL-MR-1667

Task Number(s):

7028

Project Number(s):

SR-008-01-01

Monitor Series:

MR-1667, NRL

Subject Terms

Joint Capability Areas:

JCA_6_Net Centric; JCA_6.1_Information Transport; JCA_8.2.4_Leverage Capacities and Capabilities of Security Establishments; JCA_8.2_Shape; JCA_8_Building Partnerships; JCA_5_Command and Control; JCA_5.2.3_Share Knowledge and Situational Awareness; JCA_5.2_Understand; JCA_1.3_Human Capital Management; JCA_1_Force Support; JCA_5.3_Planning; JCA_1.3.2_Personnel Management; JCA_6.4.1_Secure Information Exchange; JCA_5.5.2_Task; JCA_5.5_Direct

Modernization Areas:

Fully Networked C3

Communities of Interest:

Energy and Power Technologies

Descriptor(s):

*RADIO TRANSMISSION, EXPERIMENTAL DATA, INFORMATION THEORY, NAVAL SHORE FACILITIES, RELIABILITY(ELECTRONICS), ATMOSPHERICS

Field(s)/Group(s):

Radio Communications

Keyword(s):

CONTINUOUS RADIATION, VERY LOW FREQUENCY, PACIFIC OCEAN, TELETYPE SYSTEMS

Report Date:

1965 Jan 01