
Decoding 433 MHz ISM Band Weather Stations.GOES 16/17 and GK-2A Weather Satellite Tutorial.What about digital signal? Decoding is working normally with decimation enabled in R820T driver? I expect that sound output for NOAA / ISS SSTV is not working well with decimation feature, or? to 20.000 at 8x, with 0x was 200.000) but sound is gone anyway.ĭo I have to change another settings to get output/sound with decimation back to normal? To get the “listen” bandwith next to the “pyramid” it needs to be lowered (f.e.

With 8x decimation the tone gets shifted to 2.4k (I guess 19/8), getting impossible to listen any sound/music.Īnd: the width of the visible main spectrum (“pyramid” ▲) looks always pretty much the same – I was expecting to get “zoomed in”, just the frequency axis get stretched.

With 2x decimation, things start to get weired, tone is shifted to low frequencies and the 19k tone is now visible at 9.5kĤx-decimation looks actually similar as 2x – the 19k tone is still located at 9,5k, but sound even more muffled. FM radio – 19k RDS tone is where it supposed to be (MPX spectrum). The package works fine for me, no crash so far.Ī quick question about R820T driver with decimation – I got the idea behind oversampling/decimation, but output is not as expected.ĭriver works fine for 0-decimation.

