Re: Re: [Paparazzi-devel] Xbee an2.4Ghz video TX

[Simon Jobin]

thanks Martin and Pascal,

I will have to go on AC4868 or maybe xstream. Do you think i'll need a 
better antenna than de 1/2 wave lenght provided with the modem? Do you know 
a place in europe were i can one fast enough? Pascal can i ship the order at 
your place?

Thanks alot, see you in a couple of days.

Simon


> From: address@hidden
> Reply-To: address@hidden
> To: address@hidden
> Subject: Re: Re: [Paparazzi-devel] Xbee an2.4Ghz video TX
> Date: Mon, 10 Sep 2007 08:06:06 +0200 (CEST)
>
> Hi Simon,
>
> the video signal is broad, loud and constantly sending. You would need
> some very well tuned narrow filter to separate the XBee receive path
> from that.
>
> Another thing we tried was to turn off the video tx while receiving with
> the XBee. There is a dedicated pin where the XBee tells you when it is
> on. Problem here is that the video monitor takes some long time to
> synchronize the vertical - hard to see anything.
>
>
> Martin
>
> Am 10.09.2007 um  Uhr haben Sie geschrieben:
> > Hi Simon,
> >
> > Simon Jobin wrote:
> > > Hi
> > >
> > > Did someone ever succeeded using xbee as data link while
> transmitting
> > > video on 2.4 GHz.
> >  We have already tried that, setting the xbee and the video
> transmitter
> > on different channels (they appear clearly separated on the analyzer).
> > It worked well up to 500m, then we lost the uplink and later the
> > downlink. I think Martin Mueller got the same results ...
> >  Sorry
> >
> > --Pascal
> >
> > > Right now I have like 2 km down link and about 10m up link. I know
> it
> > > is possible with the Xstrem which is probably more selective. But
> > > those modem are way more heavy and expensive than the xbee and are a
> > > bit overkill for my actual needs.
> > >
> > > Thanks in advance for your useful help.
> > >
> > > Simon
> > >
> > > _________________________________________________________________
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