[linux-dvb] Writing DVB Software - couple questions

Andrew Hakman andrew.hakman at gmail.com
Wed Feb 23 01:24:12 CET 2005


Yeah, I don't think doing some kind of funny scaling in software would
mean anything in the end - part of the reason that I want to write my
own app rather than use the windows ones (besides that windows in
general, and most of the windows dvb software as well, sucks). Correct
me if I'm wrong, but there doesn't really seem to be a good linux app
for discovering new channels (I mean PID searching not blind
searching), storing a chanel list, controlling diseqc, and monitoring
signal strength, as well as sometimes just watching some TV. The
windows apps all have good intentions, but they all suck for one
reason or another.

I think BER is also an important number because if you have your dish
pointed at a sat, but don't have your lnb skewed right, you could be
getting lots of signal, but also lots of cross polarization
interference, and hence little usable info out of the signal. I also
agree with what you said as well, so I guess what it comes down to is
that both SNR and BER are important - try to maximise SNR and minimize
BER.

Andrew


On Wed, 23 Feb 2005 01:05:07 +0100, Wolfgang Wegner
<wolfgang at leila.ping.de> wrote:
> On Tue, Feb 22, 2005 at 11:46:24PM -0000, Chris Warren wrote:
> > One idea might be in the client software to keep a record of the minimum and
> > maximum experienced value and display a percentage/value based on this. So
> > you get a scale from 0%-100% for the known limits of the current setup.
> 
> Sorry, I do not think this would be a good idea.
> In case of initial startup you get 100% even if there is no signal
> at all.
> To be honest, I always hate equipment [and software] that lies to me
> and hides real values from me, even [or especially] if it tries to
> be more intelligent than me...
> 
> Maybe I am a bit fussy as a technician, I know...
> 
> > Chris
> 
> Regards,
> Wolfgang
> 
> 
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