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Re: [Paparazzi-devel] Spektrum telemetry, can it be done?

From: Eric Parsonage
Subject: Re: [Paparazzi-devel] Spektrum telemetry, can it be done?
Date: Sat, 7 Jan 2012 02:23:25 +1030


The spektrum telemetry unit is basically a separate transmitter module it 
doesn't use the main receiver to transmit.

It can work without being even connected to a receiver.  But if you connect it 
to the right sort of receiver then you can get signal quality information. We 
already have access to that within Paparazzi and I expect decoding the format 
required to send this to the telemetry module will be trivial ( I am betting it 
is in the same form as it comes out of the satellite receivers).

This would be pretty easy to do if you can justify spending money on something 
that is already available in the GCS.


On 07/01/2012, at 12:22 AM, Tilman Baumann wrote:

> On 05/01/12 23:36, Felix Ruess wrote:
>> Hi,
>> I think Spektrum uses an extra module that you normally connect to the
>> main receiver for telemetry downlink.....
>> So maybe this won't work with the satellites?
> Possibly. I'm really not sure myself. But it kind of looks like the better 
> senders seem to have telemetry built in already. And you can get receivers 
> with built in telemetry senders.
> But that does not mean you can send via a Satellite.
> Still, would be a great target to reverse engineer.
> Even if you need a special telemetry sender on bard Spektrum has some kind of 
> data interface for sensors which could be reverse engineered I guess.
> I always wanted a good excuse to buy a logic analyser. If they would not be 
> so damn expensive...
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