Sunday, February 15, 2009

EMWIN 2 - NWS Software Demodulator

I have been distracted for the past week. I borrowed one of the new Werner EMWIN 2 satellite receive systems. This system uses a software based receiver to decode the 19.2 EMWIN data stream.

After working with the demodulator, I discovered that it did not give the end user any status information. After hours of research I discovered that the demodulator dll did have the ability, but it would be up to the software developer to enable such capability.

I spent this week writing a c++ windows service wrapper around the dll. This new program replaces the default software demodulator service. It now outputs status information on UDP port 18000. This status information can now be displayed an logged in WxEmwin.

I have two users testing the new WxEmwin program, along with the software demodulator. After getting their results, I will post a beta on the website.

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