More gain (slider to the right) - more signal and noise. Open up Configure (right to Play and left of the numbers) and see the slider - this controls gain of the stick. Setting up gain in Configuration is the difference between good and bad images.
#Wxtoimg help how to
(Explaining how to get the best signal-to-noise ratio.
![wxtoimg help wxtoimg help](https://pbs.twimg.com/media/ESSaXd6XsAMtTaE.jpg)
Sample Rate: Selecting 1,024 MSPS in Configuration works better. Always double check WFM, 40000, and the Audio settings. Satellites are only visible for your radio from a given time, so run SDRSharp 5-10 minutes before the satellite appears. Only three frequencies are used - you get them from the imaging software. You need the following settings:īandwidth: Write 40000 here, 50000 maximum.Īudio Slider: set it to about 70 percent.įrequency: You can enter it directly or use the buttons on the top of the screen.
#Wxtoimg help software
This software uses the signal from the antenna and sends it to the imaging software. Makes no visible difference.įor antennas read the Weather Satellite Antennas section. Tested reception with 17 metres of cable, no difference in received images.Ĭonnectors are BNC, or cables twisted together. The RTL stick is covered in 5 layers of cut up aluminum cans, connected to the laptop with a 1 metre extension cable.Īntennas are connected with 5 metres of 75-Ohm cable. Wireless routers had no influence on received images. NOT fiddling the touchpad or playing with settings in SDRSharp. disconnecting wireless mouse and keyboard disabling programs running in the background - small arrow pointing up next to Speaker icon at the bottom right of your screen shows you what you're running. disabling any screen savers (Right click on Desktop, Personalize, bottom right corner) Weaker computers can not process the signal and decode said signal at the same time.
#Wxtoimg help windows 7
I use a mid-range laptop with Core i3 processor, 8 GB RAM, running Windows 7 64-bit.Īlso tested laptops with 1 and 2 GB RAM, was unable to receive images. It's a very simplified explanation, read References at the bottom for more info.
#Wxtoimg help tv
Satellites continuously take a picture of the earth beneath them, sending this signal back to earth in a way similar to TV signals in the 80's.īecause satellites constantly move, you can only see them at a given time. The orange, Earth, is also spinning, so the camera always sees a different part. Imagine your digital camera circling an orange, always over the top and bottom of the orange, the North and South Pole. Officially called NOAA 15, 18 and 19, they are truck-sized digital cameras with a radio link to Earth. (no need to read this to get an image, but good to know) Weather Satellites Background information Installation is easy, and once the work flow is understood works very well. The imaging software, WXtoImg can be downloaded from here: If not, read the Software Guide on this blog. I assume you have an RTL-SDR stick and installed the software to use it.
![wxtoimg help wxtoimg help](https://f4bpp.com/img/WXtoIMG/Digital-Atmosphere/03.png)
To create an image you need an antenna to receive the signal, software to understand this signal (SDRSharp, free), and imaging software to create an image from this signal (WXtoImg, free).
![wxtoimg help wxtoimg help](https://pbs.twimg.com/media/DS9O3TwXcAAOv_T.jpg)
Receiving an image from a satellite 800 km above your head is fun, educational (Doppler shift, atmospheric propagation.) and lets you view Earth in glorious detail. Promotes understanding meteorological phenomenon such as lows and highs in colour Confirmation of other data received, such as WEFAX or NAVTEX signals Real-time observation of weather systems in your area Please read Weather Satellites - Antennas for a suitable antenna and construction tips. Setting up software is just as important as a good antenna, so this guide details software settings. You can receive this signal with an RTL stick and create a similar image to the one on the right. What is this all about?Around 800 km / 500 miles above your head, weather satellites circle Earth, continuously sending back what they see.