| YO4HFU |
NOAA 137MHz |
WXSAT 137MHz - meteo satellite
Wheater Satellite: NOAA15, 17...
Frequency: 137,5MHz* FM wide
Quadrifilar helix antenna and BF981 preamplifier.
Signal decoded with SatSignal software and usually PC sound card.

NOAA photos received by YO4HFU (2007)
Romania Blue Sky
Superb
Europe
Carpathian Mountains
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VHF Receiver
Front end: Preamplifier BF981, Mixer BF961
FI FM: 10,7MHz module ...old radiotelephone, wide bandwith.
PLL: LB3500, HEF4059, CD4046.
Download PLL VHF 12,5/25KHz
Soft link & download
Decode:
http://www.satsignal.eu/software/satsignal.htm
Download Satsignal5.1.2
Record and tracking satellite:
http://www.wxtoimg.com/downloads/#downloads
Download WX.2905c
yo4hfu@2010-2026