HIGH FREQUENCY SPECTRUM STUDY!

[Bob Padula <100026.262@xxxxxxxxxxxxxx>]

This message is sent by Bob Padula <100026.262@xxxxxxxxxxxxxx>
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From:

Bob Padula
OAM, MIEAust, CPEng, RMIT

Chartered Professional Engineer,
International Broadcasting,
Spectrum Monitoring  and Research,
Technology Education Support.

404 Mont Albert Road,
Surrey Hills,
Victoria 3127,
AUSTRALIA

Telephone/FAX: (International) +61 3 9898 2906
E-mail: 100026.262@xxxxxxxxxxxxxx

5 August 1996
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SPECIAL ANNOUNCEMENT!!
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HIGH FREQUENCY SPECTRUM STUDY 

I am pleased to advise that the HIGH FREQUENCY SPECTRUM STUDY #1 is now available. This portrays detailed monitoring observations made in Victoria, Australia, during June 1996, for SW commercial broadcasts between 0000 and 0400 UTC, on frequencies from 4750 to 7490 kHz.  Some 160 entries are included, giving broadcasting organizations, transmitter sites, and languages. The Study period was chosen to coincide with the Australian mid-winter solstice period, from 10am until 2pm local time, at the minimum point in Solar Cycle 22, for Z96. 

The Study is accompanied by descriptive material outlining propagation mechanisms, which discusses transmission into eastern Australia at local noon, on 6 MHz, from Europe, Africa, the Americas, and the Middle East. Comparisons are made with reception during the Australian mid-winter made during the last solar maximum. The Study includes one entry for reception of Radio Nacional, Luanda, Angola, on 4950, heard at the exraordinarily late time of 11.30am - 01.30 UTC - via a short-path mode of some 13,000 km, nearly four hours after the local Victorian sunrise. 

The Study is ONLY available in printed form, and runs to some 14 A4 pages, including five pages of bar-charts arranged in frequency order. File length is some 200K.

Copies of the Study are available FREE to anyone with an interest in international broadcasting and transmission, whether hobbyist or professional. However, a small charge is required to cover costs of printing and postage: within Australia - ten 45c mint Australian stamps; other countries (airmailed) - five IRCs or US$5.00. Note that the publication is produced on a private basis, and is not sponsored by any DX Club or organization. A professional version of it is being submitted to relevant learned engineering institutions here in Australia for formal publication. Further specialized Spectrum Studies are planned in the months ahead.

As the author of the Survey, I believe that it will be of specific interest to any person or organization having an involvement in international spectrum occupancy and propagation, whether at the hobby level, for frequency planning, transmission studies, or for general technical information.

Requests for copies should be forwarded to the postal addreess shown above.

Thank you!

Bob Padula
6 August  1996


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