It didn’t take long after my first successful attempt at receiving weather satellite broadcasts for me to realize that I would need a much better antenna. I had been using a 1/4 wave whip with a 4-wire ground plane. There performance out of this antenna was poor. I read up on QFH (Quadrifiliar Helix antennas) from many of the high quality posts from around the world. I took what I could from these implementations, and did my best with the supplies I had available.
The National Oceanic and Atmospheric Administration (NOAA) manages a few satellites in low earth orbit. There are three actively transmitting APT signals at the moment, NOAA15, 17, and 18. Each of these satellites passes overhead a few times a day. I’ve been interested in learning how to receive their signals for a while now, and I’ve finally succeeded!
I’ve finally gotten my home weather station online! I’m using a Oregon Scientific WMR918 system with anemometer (wind speed), wind direction, temperature, humidity, and barometric pressure sensors. Click here to access the current and recent readings, or the beta version of an integrated page (also available in the navigation bar below the blog title) and “read more” to find out how it works.