Radio Propagation StudiesEntry ID: ASAC_327
Abstract: Metadata record for data from ASAC Project 327
See the link below for public details on this project.
From the abstract of one of the referenced papers:
A monitoring system was required to study the Doppler frequency shifts and the propagation delay of modulation (so-called group delay) of the carrier frequencies for VNG, the Standard Time Frequency and Time Signal ... Service transmitted by Telecom Australia from Lyndhurst, Victoria (38 degrees 33 minutes S, 145 degrees 15.7 minutes E). The present study is a continuation of a similar monitoring of VNG on a much shorter path within Victoria. The report describes the equipment (including HF equipment and dedicated minicomputers) used in creating a monitoring system for Macquarie Island at 54 degrees 30 minutes S, 158 degrees 57 minutes E.
The results were in the form of chart recordings and computer-produced one-minute summaries, with the real-time recordings also made during summer on an audio tape machine for later analysis. Diurnal Doppler variations were derived from the computer data. It is demonstrated that group delay can be more accurately determined by software signal analysis than by using a hardware level discriminator.
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Start Date: 1986-09-01Stop Date: 1987-03-31
ISO Topic Category
Quality Dates provided in temporal coverage are approximate only.
Access Constraints A pdf copy of one of the referenced papers is available for download from the provided URL.
Use Constraints This data set conforms to the PICCCBY Attribution License
Please follow instructions listed in the citation reference at the provided URL when using these data.
Data Set Progress
Distribution Media: HTTP
Distribution Size: 1,439 kb
Distribution Format: pdf
Role: TECHNICAL CONTACT
Role: DIF AUTHOR
Phone: +61 3 9479 2735
Fax: +61 3 9479 1552
Email: p.dyson at latrobe.edu.au
Latrobe University Physics Department
Province or State: Victoria
Postal Code: 3083
Jongens S., Essex E.A. (1988) A low-cost ionospheric doppler and propagation delay monitor. Papers and Proceedings of the Royal Society of Tasmania 122(1). 313-318
Jongens S., Essex E.A., Burns G.B. (1988) An ionospheric Doppler and propagation delay monitor as operated at Macquarie Island 1986-87. ANARE Research Notes 60. 79 pp
Creation and Review Dates
DIF Creation Date: 2000-07-27
Last DIF Revision Date: 2010-07-26