search

sam210723 / goesrecv-monitor

Status monitor for goesrecv demodulator and decoder.
https://vksdr.com/goesrecv-monitor
MIT License
31 stars 8 forks source link

Zip file does not contain the goesrecv-monitor.exe file #10

Open Tim-Deefield opened 1 year ago

Tim-Deefield commented 1 year ago

Hello Pieter,

I have been using the goesrecv-monitor for a while and really like it! One thing I noticed though is that even with 100% vit data the constellation is still very random and not a tight target. I downloaded my previous working version from a sight other than your github. I just found your github and tried using the goesrecv-monitor zip file from there, but there is no .exe file in there. When I look at you're example pictures the constellation is very tight like I would expect to see with good vit numbers. I was hoping that the github would have the latest version and have the correct constellation display.

Thanks for any help you can provide.

Tim-Deerfield

Tim-Deefield commented 1 year ago

Here is a screen shot of what I am talking about: GOES-16 Constellation

sam210723 commented 1 year ago

Hi Tim,

The the signal used in the example screenshots was received with a large 3m dish with lots of gain. Your screenshot looks normal for a dish around 1m in size.

The constellation does not have to look perfect for the signal quality to be 100% as the Viterbi decoder will handle most symbol errors.

Are you downloading goesrecv-monitor.zip from the release v1.3? This has the compiled .exe in it. https://github.com/sam210723/goesrecv-monitor/releases/download/v1.3/goesrecv-monitor.zip

Sam.

Tim-Deefield commented 1 year ago

Hello Sam,

Thank you for the quick response and explanation on what I am seeing. Yes, I am using the goesrecv-monitor.zip release version v1.3.

I guess I was expecting more of a screen like this from the NOAA 18 HRPT signal, but the signal is probably much stronger since it is a low earth orbit satellite.

This screen shot is using the same parabolic grid ant, LNA, and SDR.

Thanks again for the goesrecv-monitor program, for your help and info!

Regards,

Tim-Deerfield