Re: IR mini emitters and Sky+ box

["Simon Coates" <ecolume@xxxxxxx>]

----- Original Message -----
From: Paul Gale <p-gale@xxxxxxx>
To: <ukha_d@xxxxxxx>
Sent: 28 February 2003 21:11
Subject: RE: [ukha_d] IR mini emitters and Sky+ box


> mmm..odd

That is odd.
With a 20K resistor in series then there'd be barely be enough current
(less
than a 1/4 mA) to get the LED to light even faintly.
Is there a chance that there's another emitter (or an IR blaster) or maybe
HV's front panel emitter nearby.  BTW HV's IR TX can be disabled if it
turns
out to be the problem.

Other than that - I'm stumped!

Regards

Simon

>
> I tried a variable resistor from 20K all the way down to short
circuit.
> Helped a small amount but the biggest change was obtained by pointing
> the remote at the side wall in the AV room (and bouncing the signal).
> I'm using the IR distribution of my multi zone amp.
>
> Why would bouncing the IR signal make such a big difference but
putting
> a resistor in series with the emitter make little difference? Could
the
> amp IR distribution system be over-amplifying maybe? I did look at the
> transmitted vs distributed signals on my scope and they looked pretty
> similar (apart from the voltage of the IR remote across the IR LED is
> about 1.5V and the distribution system is 5V).
>
> Paul.
>
> -----Original Message-----
> From: Simon Coates [mailto:ecolume@xxxxxxx]
> Sent: 28 February 2003 20:16
> To: ukha_d@xxxxxxx
> Subject: Re: [ukha_d] IR mini emitters and Sky+ box
>
> Paul,
>
> If the emitter is small enough (I've got some with feedback LED that
are
> tiny) you could try and stick it just above viewing card.  The front
> flap is
> easy to remove.  You could run the wire out under the box and clip the
> door
> back on.
>
> Might work.
>
> Regards
>
> Simon
>
> PS I'm trying to figure out how to control 2 Sky+ boxes at Node 0 -
> since
> Sky/Pace have made a stupid decision regarding IR control.
>
>
> ----- Original Message -----
> From: Paul Gale <p-gale@xxxxxxx>
> To: <ukha_d@xxxxxxx>
> Sent: 28 February 2003 20:02
> Subject: [ukha_d] IR mini emitters and Sky+ box
>
>
> > I'm having a few troubles with controlling my Sky+ box (located
in
> > Node0). I've got a couple of different makes of mini emitters
> including
> > some Xantech 283M mouse emitters. It seems that the transmitted
IR
> > signal is too strong for the Sky+ box as it sometimes only
recognises
> 1
> > out of 10 or so button presses when the emitter is directly over
the
> IR
> > receive window. Moving the emitter about 15cm away improves the
> > recognition a lot.
> >
> > I can't permanently position the emitter at this distance as the
box
> is
> > mounted in a 19" rack.
> >
> > Any thoughts on cutting the strength of the signal (using a
resistor,
> > coloured film, different emitter etc)?
> >
> > Thanks,
> >
> > Paul.
> >
> >
> >
> >
> > [Non-text portions of this message have been removed]
> >
> >
> >
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