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Iran?

i understand from 50Mhz comunication when not possible sporadic . Ok , europe is down .. OK look from reality and mensurements kits



and reception ....

http://www.youtube.com/watch?v=TWwdB5aQ ... annel_page

lol american is in maraton from yesteday to today , eu zone is down . super

NLC ALERT: "While India and China were enjoying a total solar eclipse, here in Europe we were treated to a sky show of our own," says Tomasz Adam of Staszów, Poland, where the night sky lit up with intense noctilucent clouds (NLCs) on July 21st and 22nd. "It was easily the best display I've ever seen." A similar event last week heralded NLCs in the United States as far south as Nevada, Colorado and Utah. Sky watchers should be alert for more.

22.07.2009


23.07

rules from ionoscatters :
scattering from irregularities in the ionosphere result IONOSCATTERS .
my reception chinese is simple|:
chninese sporadic to vest and in arabic zone ionoscatters , fenomen is mixed .

corrrect , no es , in my zone appear very very low es with most popular RADIO MASR or SAWT

http://www.youtube.com/watch?v=0HWx9jLh ... annel_page

here NO es in theese days

Man , Operator , other dx-ers , is very very simple detections . To receive fenomens of athmosphere correct need .
1 antena 90Mhz with 3 elements , 3dB maxim reception in Horizontal polarization . Fenomen not receiverd in Vertical .
2. Radio to little sensibility <0.8µV from antena . AGC from RECEPTION dubling or TRIPLING to receive other low signals .
Questions :
1 What is avantaje from modifications?
1.1 Modifications need to listen low or very low radio signals .
2.Antena in Vertical polarization not functional correct or partially in sporadic , what is problem ?
2.2 Problem is simple , Vertical sporadic is rare , normally is unsettled polarization to 140 - 180° .
3 IN plane zone sporadic is agressive , not understand ?
3.3 Nornally to decrease elevation sporadic up in levels , at 0M elevation rare fenomen is out of reception and reception very power . Sea level or ocean is zone from records or master dx .
4. Alert is nountains zone , in my zone not functionally this alert? .. is a big problem or sporadic not appear in my zone?
4.4 NO , sporadic appear in your zone , not have antena in H plane polarization or elevation is big , Rules from mountain : 1000M altitude down 4dB/M , at 2000M 9-10dB/M .. is normally !
5 Man what is problem .. sporadic attase in info is 52Mhz and radio received sporadic with radio in band 2 ?
5.5 no problem spoadic kit mensure no calul real real . Calul aproximation MUF in athmosphere . Rare Muf sonde indicate real MUF >200Mhz .In the calcul from MUF reception : 53Mhz is partially dubling from 106mhz or MufX2 .

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