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Updated NOAA (markdown)

Brumi-2021
2025-05-11 23:44:07 +02:00
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NOAA.md

@@ -46,11 +46,7 @@ Hackrf, like the rest of SDR receivers, have not enough sensitivity to receive
You can tune , inputting directly any of the 3 x above current NOAA Satellite frequencies (NOAA 15: 137.62MHz. NOAA 18: 137.9125MHz. NOAA 19: 137.1MHz) ,and check at what exact time , the satellite will be visible in his orbital pass. (there are many programms and web links to check the exact local time pass to your ground station place ) .
Here you have, some predict and tracking web links examples :
To check [NOAA 15](https://www.n2yo.com/satellite/?s=25338), real time tracking position or next 10 day prediction passes to your location (based on your IP).
To check [NOAA 18](https://www.n2yo.com/satellite/?s=28654), real time tracking position or next 10 day prediction passes to your location (based on your IP).
To check [NOAA 19](https://www.n2yo.com/satellite/?s=33591), real time tracking position or next 10 day prediction passes to your location (based on your IP).
To check [NOAA 15](https://www.n2yo.com/satellite/?s=25338), [NOAA 18](https://www.n2yo.com/satellite/?s=28654), [NOAA 19](https://www.n2yo.com/satellite/?s=33591) real time tracking position or next 10 day prediction passes to your location (based on your IP).
You need to adjust proper LNA , RF GAIN , VGA till getting proper signal (not weak, not saturating) , and you can adjust the audio volume till recognizing the usual beep , beep sound indicating frame A, frame B every 0.25 segs.Once you confirmed all those above points optimizing the gain levels for best LCD screen map decoding. you can press START , and it will start to record the map into SD/BMP folder ,in high resolution. Once you lose the satellite signal , you can press the STOP button , and you can check the recorded image into that SD/BMP folter . The file name will start by "noaa_year-month-date-time.bmp"