Basically, this means that a cheap $20 TV tuner USB dongle with the RTL2832U chipset can be used as a computer controlled radio scanner.Īfter a long trial and error process with different antennas finally I am surprised with APT signal reception from my simple ground plane antenna which is made from coat hanger.I don’t no more technical stuff about antennas, My GP antenna have 22 inch long radials ( slant down at an angle of 45 degrees) close up photo of antenna.
#Wxtoimg audio no image software#
If you are not familiar with RTL-SDR, RTL-SDR is a very cheap software defined radio that uses a DVB-T TV tuner dongle based on the realtek RTL2832U chipset. RTL-SDR dongle combined with a good antenna and programs like GQRX, sdrsharp and WXtoImg we can decode this signals. Each NOAA weather satellite broadcasts an Automatic Picture Transmission (APT) signal (137MHZ), which contains a live weather image of our area. It carries a suite of instruments that provides data for weather and climate predictions, everyday multiple NOAA weather satellites pass above us.
#Wxtoimg audio no image series#
You'll have to configure it for your location on the right side, bottom.NOAA satellite is a series of weather satellites launched by NASA. In that case, if you 'crank up' the RF gain to where you see noise in the SDRSharp display, you should see noise in the WXtoimg display also.īy the way, here's a good web page that you may find useful. You can run that anytime to test your audio to WXtoimg and adjust volume levels. I found that I need to set the volume slider on SDRSharp close to maximum.Īlso, under the FILE, RECORD selection, there is a 'Manual Test' mode. There's also an option under 'FILE' to see the list of upcoming passes and you can print that out. I usually start WXtoimg first so I can see when the next pass is. Yes, If you run WXtoimg with no audio to it, it WILL paint a black image. You should be able to see the final image just as clear as you can see your own desktop. So mush for life history.Boring.Ĭlick to expand.To see the high resolution screen captures, just keep clicking on the magnifying glass in the bottom right corner. I'm new to this dongle stuff, which aroused my interests again. Worked great however, I gave up to available GOES images on internet. I think that was the img software starting and painting WITHOUT an incoming audio signal.Just a guess.īTW In the past, I have used WxToImg with receiver. I have to break out the magnifying glass (smile).Ĭlarification: I should open WxToImg firist and set everything there first? I had both open and waiting for the pass to auto-start. Thanks for screen captures, but they are not that clear to read on my end. As I said, I have reloaded and will check the other steps this afternoon before pass.īTW I live south of Fort Worth, TX about 50 miles, for info. Cannot do that without first receiving a sat image! Still think that the problem is piping. Squelch is unchecked as instructions said to used WFM. Instructions that I downloaded & read say to set band width 34000. I almost forgot to mention that you MUST set your WXtoimg recording options also. Tune SDRSharp to THAT frequency and wait.Īdjust the volume to give you around 65-80% green on wxtoimg during the satellite pass. (The bottom of wxtoimg will show the current UTC time, and time and frequency of the next pass. Then, click on ‘FILE’, ‘ RECORD’ Then, ‘Auto Record’
I have LOTS of audio sources on my computers.Ĭalibrate if you haven’t already calibrated (you’ll need data from a prior pass and only needs to be done one time)Ĭlick on ‘FILE’ then ‘UPDATE KEPLERS’ to get the latest orbit data.Īt the bottom right corner, click on your volume control. Select CABLE Input (VB-Audio Virtual Cīy the way, don't let all that 'stuff' in my drop down box scare you. Set the RF gain to a level where you can see a good APT signal as in my prior post. Uncheck BOTH AGC boxes in the configuration pop-up and adjust the RF gain manually. See this post of mine if you want to make it wider. I set mine to 36000 to allow for some doppler shift. The next good pass is many hours away here so I can't show you a 'live' screen capture. Here's some info for you and two screen captures of v1313. Yes, the settings won't vary much if at all between versions.
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