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Re: [Paparazzi-devel] XBee 868 MHz Issues with Paparazzi

From: Anish Mohammed
Subject: Re: [Paparazzi-devel] XBee 868 MHz Issues with Paparazzi
Date: Tue, 10 Apr 2012 07:02:00 +0100

Hi Chris,
From what I gather 433 MHz version won't be available for a very short while 
afaik ( I am assuming we  are talking of same Tridge and radio's ;)). I am 
waiting for one as well.

Anish Mohammed
Twitter: anishmohammed

On 10 Apr 2012, at 02:31, Chris Gough <address@hidden> wrote:

>> Also, does anyone know of any 433 MHz transmitters tailored
>> for AUTO2 outdoor flight? I'm curious as to why XBee doesn't make any
>> 433 MHz modems...
> don't know about XBee, but the open source firmware for SiLabs Si1000
> SoC radios has improved a lot recently.
> HopeRF makes a 433 MHz Si1000-based module, there are probably others too.
> We've been getting good results with prototypes of the 900MHz HopeRF
> module (8km range @ legal EIRP limit, using 1/4 wave dipole and
> external amplifier). I'll be testing some 433 MHs ones in few weeks
> and hope/expect that even without an amplifier or directional antennas
> they will be a cheap, practical, long range link (low bandwidth) link.
> For paparazzi, with this firmware, don't forget to set MAVLINK=0
> (ATS6=0; AT&W), so it's just a transparent serial link, otherwise it
> will try to insert radio-status MavLink messages and pack data into
> MavLink-specific frames.
> Chris Gough
> -- 
> .
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