Tag Archive | Miroslav Gola

WX image update

Our APT satellite weather picture capability has matured quite a but in the last week or two. At the moment I am still busy fine tuning the receiver we got in kit form from Miroslav Gola. The results using the kit receiver from Miroslav is quite a bit better than using my handheld radio.

Another change I made was moving from WXSat to WXtoImg, which makes a remarkable difference. WXtoImg has an impressive lists of features and so far I have been able to generate better quality images using this software.

Below is weather satellite images I received from the NOAA-19 satellite and decoded using WXtoImg. Images are from 7 July 2011.

noaa19-20110707_wxtoimg1

noaa19-20110707_wxtoimg1

noaa19-20110707_wxtoimg2

noaa19-20110707_wxtoimg2

noaa19-20110707_wxtoimg3

noaa19-20110707_wxtoimg3

noaa19-20110707_wxtoimg4

noaa19-20110707_wxtoimg4

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A proper weather satellite receiver

One of my colleagues ordered a dedicated weather satellite receiver for us, the only thing left to do was construct the kit. The kit comes from Miroslav Gola and still required some construction (you can apparently buy the kit fully assembled, but where is the fun in that?).

emgo_receiver

emgo_receiver

And so construction started. The PCB is pretty well made and no components were missing so construction turned out to be pretty straight forward. What I have found with some of the amateur radio kits is that the documentation can sometimes be a bit confusing.

emgo_receiver

emgo_receiver

Construction took a few hours, mostly after work. With the finished product looking a little something like this:

emgo_receiver

emgo_receiver

And so testing and tuning could begin. I have be honest, being fairly excited with my handy work, initial testing was pretty “informal”. Basically hooking power and a speaker up and seeing what happens. 🙂 No smoke, just kidding, now tuning could begin in all earnest.

testing emgo_receiver

testing emgo_receiver

So, with a plethora of test equipment I set off, with the help of a friend. On hand was a oscilloscope, spectrum analyser and signal generator, last two with DC blocks installed. With the circuit tuned all that is left to do is some real world testing.