On Freitag, 17. Oktober 2008, Devin Heitmueller wrote: > Hello, > > In response to Steven Toth's suggestion regarding figuring out what > the various units are across demodulators, I took a quick inventory > and came up with the following list. Note that this is just a first > pass by taking a quick look at the source for each demodulator (I > haven't looked for the datasheets for any of them yet or done sample > captures to see what the reported ranges are). > > Could everybody who is responsible for a demod please take a look at > the list and see if you can fill in the holes? > > Having a definitive list of the current state is important to being > able to provide unified reporting of SNR. > > Thank you, > > Devin > > mt312.c unknown The hardware provides two values: * AGC: For now the AGC feedback value (14 bit) is returned unchanged. * ERR_db: Also available is a 10-bit value representing the signal level difference between AGC-Reference and received signal level (most likely in 1dB steps). If an absolute value is needed: I don't get it how to calc absolute signal levels from AGC-Reference. so code for now: mt312.c: agc-feedback 0-0x3FFF @Obi: Any additions? Regards Matthias _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
