| VHF Propagation - a Mystery Solved |
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Out On The Bleeding Edge of VHF Propagation - a Mystery Solved.
At the November meeting you'll hear and see stuff that has not seen the light of day before. A touch of science, a little art, some exciting ham radio technology and a bit of tomfoolery (as usual). Come along and enjoy another interesting and enlightening presentation by Roger Harrison VK2ZRH. Have a look at our NEW Market Table and pick up a bargain from the renge of radio and electronic items and equipment. more Also the last opportunity to order and pay for your Christmas Fundraising order. Members, friends and visitors are most welcome. Free tea, coffee and biscuits. Meeting commences at 7.30 PM, Wednesday 2nd November 2011, at our meeting rooms, Donelly Park, Kyle Parade, Kyle Bay. More about Roger's Presentation.... There are many myths about radio propagation via the ionosphere. But sporadic E seems to attract the lion's share of myth and mystery. No doubt its capricious behaviour encourages that - propagation opens and closes suddenly; it might last for minutes or many hours; it will persist for days and then not reappear for a week. Sporadic E is responsible for those 60dB-over-9 short-skip signals on 40 metres through to two metres every summer. And multi-hop sporadic E will get you some exciting DX out to 10,000 km on 10 and 6 metres . . . maybe more. But what the world once thought about how sporadic E propagation worked has been turned on its head. At the November St George Amateur Radio Society meeting, Roger Harrison VK2ZRH shares the results of his recent research to give us the low down on the hows, the whys and the wherefores of sporadic E propagation - from HF to UHF ! Hear all about it, with Roger's usual mix of art, science, technology and tomfoolery. |












