Re: [Paparazzi-devel] LONG RANGE data radios - what the best

[Reto Büttner]

9XTEND should go well over 50km:

http://lists.gnu.org/archive/html/paparazzi-devel/2012-04/msg00224.html

But GSM is a perfect idea as well. It has the major advantages of
requiring neither line-of-sight nor directional antennas. Let us know
as soon as you have a GSM setup working.

Cheers, Reto

2012/5/31 Rokas Adiklis <address@hidden>:
> Hi Eduardo,
>
> 9XTEND's are great radios, but I doubt they would work 50km+. Specs say max
> range is 64km, but only in ideal conditions: direct line of sight, high gain
> antennas, good weather, low data transmission speed and most probably you
> would need antenna trackers on GCS and on the aircraft. I've used these
> radios for up to 10 km without these prerequisites (standard antennas, no
> tracking, no direct line-of-sight, some trees around). Going further than
> 10km rendered connection inactive. Also, formally these should be illegal in
> EU.
>
> In your case I would use GSM for communication. You need a "GSM to Serial
> data" type of device for the aircraft, and internet access (preferrably with
> fixed IP address) on your computer with "TCP to COM" type of software
> installed. GSM modem receives serial data from PPZ, tunnels it over TCP
> (GPRS/3G/4G) to your computer, where the recipient service passes this data
> to virtual COM port. The virtual COM port is the one configured in GCS as a
> "modem".
>
> I haven't tried it myself, but intend to some time this year.
>
> This is the kind of device that I'm talking about:
> http://www.teltonika.lt/en/pages/view/?id=747 (just for reference, I think
> you can find cheaper and more functional devices made elsewhere).
>
> Kind regards,
> Rokas
>
> On Wed, May 30, 2012 at 11:38 PM, Eduardo lavratti <address@hidden>
> wrote:
>>
>> friends i will order a pair of long range radios  for telemetry.
>> I am think in digi 9XTEND radios.
>>
>> This is the most powerfull data radio i know but i see that some people
>> have problem using this radio.
>> have more options for long range radios ?
>>
>> i will fly more than 50km away.
>>
>>
>>
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