[linux-dvb] Writing DVB Software - couple questions

Johannes Stezenbach js at linuxtv.org
Tue Feb 22 23:49:50 CET 2005


Andrew Hakman wrote:
> What units (or otherwise) is the BER number given in? Same question
> for SNR and signal strength? Nothing is mentioned in the API about
> what the units of these numbers are which makes them less useful.
> Also, currently, the only number I get back for signal strength is
> 65535 which seems wrong. I'm opening the frontend device read-only
> right now and using VLC to actually tune the card if that makes any
> difference.

It's all undefined, as each demod hardware and driver has it's
own idea about them.

Johannes




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