Re: General Question regarding SNR

2010-12-20 Thread Jean-Michel Bruenn
Hello, "crope" on #linuxtv irc helped me to understand the stuff in my previous mail. So for other people who might want to understand that also: dvbsnoop reports snr without lock/antenna: If there is no Lock, unc, ber and snr _aren't_ valid. So check first whether you have a loc

General Question regarding SNR

2010-12-19 Thread Jean-Michel Bruenn
Hello, i hope it's okay to ask here. I'm wondering how the SNR is calculated, and how someone can calculate the "real" snr in db. This caused me a lot of nerves and i don't seem to be able to calculate the correct snr. For that some examples. I'm using DVB-T and a Hauppauge WinTV-HVR1200 (Conexant