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


From: Simon Jobin
Subject: Re: Re: [Paparazzi-devel] Xbee an2.4Ghz video TX
Date: Mon, 10 Sep 2007 04:07:10 -0400

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
> >
> > _________________________________________________________________
> > Enjoy The Show: Buskers & Street Performers
> >
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> >
> >
> >
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