[vdr] Re: Plugin & Diseqc Question to Klaus & all

["Rene Bartsch" <vdr@bartschnet.de>]

----- Original Message -----
From: "Klaus Schmidinger" <Klaus.Schmidinger@cadsoft.de>
To: <vdr@linuxtv.org>
Sent: Saturday, October 19, 2002 11:52 PM
Subject: [vdr] Re: Plugin & Diseqc Question to Klaus & all


> Reinhard Walter Buchner wrote:
> >
> > Hi Klaus,
> >
> > R> if I switch from say Pro7 to RTL (meaning the same satellite), I
> > R> don`t have to wait the 52 seconds. How come?
> >
> > K>The DiSEqC commands are only sent if they are actually different.
> >
> > Aha, that explains that (and maybe my problem) If the DVB drivers
> > only send the 22kHz tone on/off commands once and the motor
> > garbles it, then the LNB wouldn't switch. IŽll see if I can integrate
> > the tone command into the channel switch somehow so that it sends
> > it after the motor has reached the final position.
>
> The 22kHz signal is nothing that is "sent" once. It is either _on_ or
> _off_. So it shouldn't matter where the 'T' is. Once executing the DiSEqC
> command string has come by a 'T', the 22kHz tone is turned on and stays on
> (until a 't' is encountered). I would be surprised if moving the tone
command
> processing somewhere else would change anything.
>
> > K>Well, I don't know why you do or don't need the 'T'. This simply
> > K>controls the 22kHz tone.
> >
> > Yes, I understood that, but maybe the 22kHz never reaches the LNB
> > due to motor movement. It might also be that the motor actually
> > switches the LNB off during movement as the DiSEqC specs say
> > a maximum of 500mA to any diseqc registered product. By switching
> > the LNB off, they save current and prevent pops, clicks and other
> > glitches while the motor is moving (YOU turn Pids off in VDR,
> > but maybe some elcheapo receivers don't) and from annoying the
> > viewer. My Nokia goes black during the motor movement, so
> > maybe the LNB is really switched off.

If so, you could repeat the DiSEqC-command instead of the Tone-command ...

Rene



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