Re: [Paparazzi-devel] Spektrum Satellite dropping connection

[Reto Büttner]

Hi Marko,

there is some information on the Wiki:
http://paparazzi.enac.fr/wiki/Hardware_Installation#Radio_Devices
http://paparazzi.enac.fr/wiki/Hardware_Installation#General_Electrical_Advice

Cheers, Reto

2010/8/20 Marko Thaler <address@hidden>:
> Hello Joe,
> All antennas are outside the frame. My comment about carbon fiber vs.
> aluminum was meant in terms of a better grounding plane. Since I am a
> mechanical engineer/ control systems guy I apologize for my ignorance about
> RF attenuation and antenna grounding.
> Can someone recommend a good overview resource about ground planes and RF
> attenuation for non electrical engineering folks?
> Thanks for your help and kind regards,
> Marko
>
>
>
> On Aug 20, 2010, at 9:17 AM, Gisela Noci wrote:
>
> mmm, Thats even worse than carbon! Any metal is a better shield to RF than
> carbon. Better get ALL antenna outside the frame!
>
> Joe
> ________________________________
> From:address@hidden@nongnu.org]
> on behalf of Marko Thaler address@hidden
> Sent: Thursday, August 19, 2010 9:38 PM
> To:address@hidden
> Subject: Re: [Paparazzi-devel] Spektrum Satellite dropping connection
>
> Hello Todd,
> Thanks for the reminder about carbon. Luckily, we are using laser cut
> aluminum plates for the frame.
> Kind regards,
> Marko
>
> On Aug 19, 2010, at 12:52 AM, Todd Sandercock wrote:
>
> Also watch out for your standard issues that occur with spektrum and carbon.
>
> Todd
> On 19/08/2010, at 3:19 AM, Marko Thaler <address@hidden> wrote:
>
> Hello Eric,
> Thank you for the information and for writing a new parser. I am looking
> forward to test the new code.
> Kind regards,
> Marko
>
> On Wed, Aug 18, 2010 at 7:00 PM, Eric Parsonage <address@hidden> wrote:
>>
>> Hi Marko
>> There is a bug in the current parser for both lisa and booz when using a
>> satellite receiver. I believe that the behaviour you are seeing is due to
>> this bug.
>> I am currently in the process of writing code to support a pair of
>> satellite receivers (on lisa) . Hopefully this will be ready in the next few
>> days.
>> Regards
>> Eric
>>
>> On 19/08/2010, at 2:09 AM, Marko Thaler wrote:
>>
>> It would be nice to use the main unit and the Satellite together, but at
>> the moment Lisa/L only supports the use of the Satellite RX with it`s serial
>> communication protocol. Thanks anyway!
>>
>> On Wed, Aug 18, 2010 at 6:24 PM, Edixon
>> Giraldo <address@hidden> wrote:
>>>
>>> I was experiencing similar problems with a Spektrum AR7000 Rx.  The
>>> reason it was happening to me was because I disconnected the satellite Rx
>>> and was using just the main unit.  As soon as I reconnected the satellite, I
>>> never lost connection anymore.  I don't know if that is your case, but,
>>> check it out.
>>>
>>> ________________________________
>>> Date: Wed, 18 Aug 2010 18:11:18 +0200
>>> From:address@hidden
>>> To:address@hidden
>>> Subject: [Paparazzi-devel] Spektrum Satellite dropping connection
>>>
>>> Hello everybody,
>>> My setup is Lisa/L with Spektrum Satellite receiver and Futaba T9CP with
>>> Spektrum DSM2 transmitter module. For telemetry I am using 2.4GHz XBee Pro
>>> Series 2 modules.
>>> After a couple of hours of setting up and testing all the systems I have
>>> started to notice the RC link was constantly dropping connection. When the
>>> problem started to occur the quad battery voltage was 11.4V and the
>>> transmitter was at 9.4V. The funny thing is that when I was moving the
>>> sticks the link was solid. However, when there was no stick movement the
>>> connection was dropping out (switching between OK, LOST and REALLY_LOST). I
>>> have reset the board a couple of times and the problem was reproducible.
>>> Has anybody experienced anything similar? What is your experience with
>>> Spektrum system and possible XBee interference (both 2.4GHz)?
>>> I have just recently switched to Spektrum modules because of Lisa/L
>>> support. Previously I was using Jeti Duplex which was rock solid.
>>> Thank you for your help.
>>> Kind regards,
>>> Marko
>>>
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