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Sunday, June 7, 2009

Daytime shortwave winter propagation notes

Did you know that the maximum elevation of the Sun, here in Melbourne, on June 7, is only 29.5 degrees, at solar noon, which is at 12.19 pm (0219 UTC)?

Our daylight allocation, nearing the shortest day, is now only 9 hrs 37 mins, with sunrise at 7.30 am (2130 UTC) and sunset at 5.08 pm (0708 UTC).

This means that propagation from all continents, over darkness or semi-darkness paths, on frequencies below 10 MHz, is now at its peak, during the various windows which exist.

Several stations are currently audible during our "Morning Brazilian Mode", between 2100 and 2330, with propagation via the Antarctic region/

They include

4915 2100-2130
4985 2100-2120
5990 2100-2200
6060 2135 to 2300
6183 2200-2330 (nominally 6180)

CVC Santiago is audible, propagation via the Antarctic regio

6070 *2300-2330
9635 2030-2200

OTHERS, via various propagation windows
5915 THAILAND VOA-Udorn 2230-2300* English

6045 JAPAN NHK-Yamata 2045 Asian langs
6065 S. AFRICA BBC Meyerton *2030-2100* Portuguese
6065 CHINA CRI-Beijing 2135 Mandarin
6070 BELARUS 2030-2100 Belarussian
6090 NIGERIA R. Nigeria, Kaduna 2200-2305*
6110 CHINA Lhasa, 2135 Tibetan
6115 GERMANY WYFR Nauen 2135 Arabic
6125 SPAIN REE earliest longpath signal to become audible on 6 MHz, 0230 onwards
6130 CHINA Lhasa 2145 Tibetan
6175 ALBANIA CRI-Cerrick 2305 Portuguese

Cold climate here now, so watch out for those Brass Monkeys.....

.Regards from Melbourne!

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