Hi dxers . in this afternoon start at 15:00 a fenomen troposferic in direction NE romania , to south moldova , and ukraine . This fenomen add 200km signals with rds at 48dB signal to noise ratio , and odessa at 21 to 27dB signal to noise ratio . This reception is detect in H mode polarization . In v not detect signals . In moment to increase to 27dB signal carrier VIDEO 93,25Mhz R5 channel odessa start variations with STILNOE sevastopol .
Need a explain , romania have alert for earthquake medium to major . Need explains about preseismic fenomens tropo or sporadic or something .
Preseismic waves what problem add in reception TV dx in UHF , refflexions ? , local propagation increased to local level , or reception tv station for mountain with earthkuakes , VRANCEA - Magura Odobesti scatter power?
Know anomalies ? Please explain but need a big attention for this fenomens in this period .