PilotAware
British Forum => General Discussion => Topic started by: przemek on September 28, 2015, 01:51:09 pm
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Hi. It's possible to display traffic data from PilotAware on Garmin 496/495 gps?
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Hi. It's possible to display traffic data from PilotAware on Garmin 496/495 gps?
I have been asked about this previously.
If you can refer me to a specification for the format, I can take a look.
I would need to know the electrical spec (I presume it takes an RS232 feed)
and the specification for the data format defining the traffic onformation
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Hi. It's normal RS-232. I know that XRX PCAS works with this via RS-232. I'll take a look.
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There is something. It's called Garmin TIS, normally it's used to connect with mode-s transponder. It can display up to 7 aircrafts.
http://www.pprune.org/private-flying/511452-data-label-format-garmin-tis-display-garmin-g500h-via-arinc-429-a.html
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I don't know if this helps, but there's a chap out there who's been decoding/compiling a list of the GDL-39 traffic protocols. The GDL-39 sends traffic information to a Garmin GPS. He has a blog and a website. I don't know if this helps:
http://sdwflying.blogspot.co.uk/2012/08/gdl39-protocol.html (http://sdwflying.blogspot.co.uk/2012/08/gdl39-protocol.html)
http://sdwflying.blogspot.co.uk/2012/08/gdl-39-ios-protocol.html (http://sdwflying.blogspot.co.uk/2012/08/gdl-39-ios-protocol.html)
http://sdwflying.blogspot.co.uk/2012/08/gdl39-protocol-continued.html (http://sdwflying.blogspot.co.uk/2012/08/gdl39-protocol-continued.html)
http://www.chartbundle.com/tech/gdl39/ (http://www.chartbundle.com/tech/gdl39/)
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I read on Garmin's website their newer portables (695/795/Aera 500) have received software updates to accept Garmin's "ADSB-traffic". Alas they don't seem to have updated the 496 to support this.
Not 100% sure if it is the same thing but Garmin show the syntax for a "traffic report" message for MFDs in section 3.5.1 of this public document.
Garmin GDL 90 Data Interface Specification (http://tinyurl.com/q8cktkz)
Unlike the original Garmin TIS this does not seem to be restricted to reporting only 8 targets.
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I had a look at that GDL-90 stuff, and it appears it's designed to interface with the Apollo MX20 (rebadged/reborn as a Garmin MX20/GMX200 now) MFD and precious little else, so it appears it doesn't output the Garmin TIS protocol unless you know any different.
The GMX200 also receives the TIS protocol in addition I believe, but that may be on a different version:
The GMX 200 comes in four versions: Standard, Traffic, Radar/TAWS, and Radar/Traffic.
GMX 200 Traffic - supports interfaces to Garmin TIS transponders and ADS-B transceivers, and can also be connected to certain TCAS 1 and TAS systems
GMX 200 Radar/TAWS - supports interfaces to Garmin GWX 68 radar, other onboard radar systems, and selected TAWS sensors
GMX 200 Radar/Traffic - supports traffic interfaces and can also be interfaced with Garmin's GWX 68T, a new color digital weather radar with 6.5 KW of transmit power. When connected to the GWX 68T, the Radar/Traffic model displays real-time weather ahead of the aircraft supporting both horizontal and vertical perspectives.
The GMX 200 may be interfaced with the Garmin 400/500 series, GNS 480T, Garmin GDL 69/69A, Garmin GTX 330/33T, Garmin GDL 90T, Garmin GWX 68, as well as many other manufactures' GPS navigation equipment.
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My post was not about "Garmin TIS" Paul but "ADS-B traffic".
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Um, ok. But the format of data which GPSs such as the 496/Aera 500/695/etc take in to display traffic, is in the format of "TIS" information sent (in the US) from a GTX-330. This is the protocol we want I believe?
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Hi. I'm looking for TIS protocol specyficatiom. I would like to decode it initially by arduino but then its easy to convert code and use maybe in pilotaware. Can anyone share some informatons, maybe specyfication of protocol?
I'm not sure if this GDL39 protocol is the same or not?
I have 496 and 695 for testing.
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Hi. I'm looking for TIS protocol specyficatiom. I would like to decode it initially by arduino but then its easy to convert code and use maybe in pilotaware. Can anyone share some informatons, maybe specyfication of protocol?
I'm not sure if this GDL39 protocol is the same or not?
I have 496 and 695 for testing.
I have tried many times, but unsuccessfully to get this information from Garmin.
They are not prepared to provide any useful information regarding this protocol, and keep it secret
Good luck, but I think you will not be able to do this.
Thx
Lee
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I think only way is reverse engineering here :).
Now I haven't any TIS messages trasmiter. Maybe someone can record some sentences from Garrecht TRX1500 of Zaon PCAS for analyze?
Probably I will have trx1500 next week but it's not 100% sure.
I expect that it will be normal RS-232 with 9600 or 4800 baud rate.
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I am pretty sure the messages are encrypted, so not so simple.
I did find a posting on the web which reverse engineered the algorithm, and it was not trivial !
Thx
Lee
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This was the chap:
http://www.chartbundle.com/tech/gdl39/ (http://www.chartbundle.com/tech/gdl39/)
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Yep, that was the reference
Thx
Lee
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This is GDL protocol. Can be similar or completly different.
I'll try to get somewhere tis-a transmitter.
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This is GDL protocol. Can be similar or completly different.
I'll try to get somewhere tis-a transmitter.
Good luck with this, let us know how you get on.
If you have some success, we could always incorporate a solution, the last contact I had from Garmin after many email exchanges was this :-
Hi Lee,
I understand you're not a Garmin Dealer.
I'm not familiar with Flarm, Zaon, or Garrech. There are non Garmin dealer who, without our support, have "reverse engineered" our data most with limited success.
Best Regards,
Ken
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Hi,
FWIW I had the Zaon XRX coupled to the Garmin 496 and used it in that configuration for quite a while. My personal feelings on the setup was that it wasn't a good combination because of the small screen, any contacts would eventually show up in the relevant quadrant on the 496 screen but more importantly you had to take some time to find the little red dot representing the target! The time spent should have been looking out of the window.
I used it like that for one season and eventually went back to the Zaon XRX default display (ie. uncoupled it from the Garmin). I have now replaced both pieces of kit with the PAW and a Nexus 7, a far better choice especially when using Skydemon. Now I can have my head outside the office instead of inside, it's far more enjoyable and relaxing.
Mike (G-BJXK)
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I have now replaced both pieces of kit with the PAW and a Nexus 7, a far better choice especially when using Skydemon. Now I can have my head outside the office instead of inside, it's far more enjoyable and relaxing.
Mike (G-BJXK)
Hi Mike thanks for the feedback. We like feedback the good and the bad. It helps us know what you need and what you want.
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Ok. So I did some work and I have dump of position reports sent in Garmin TIS by RS-232.
I attached this file and some screenshots.
Protocol is like described here:
http://www.garmin.com/support/pdf/iop_spec.pdf
So every sentence starts with 10 then 8C (packed id) then how long are data for eg. 48
then we have data...
on the end is checksum (AA) and 10 03
Maybe someone can help and analyze data section for lat/lon/altitude etc....
I know that garmin is using conversion's
degrees = semicircles * ( 180 / 2^31 )
semicircles = degrees * ( 2^31 / 180 )
Update!
After 2 days of research I found how to make it.
I have to decode some minor stuff but I'm able to display traffic by myself with altitude, direction, icon type etc..
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Great work -well done!! I would like to connect to a Garmin 695. Im watching your investigations with interest!
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Here is the description of the TIP protocol used by the TRX products:
http://www.air-avionics.com/air/index.php/kundenservice-und-support/systemintegratoren/76-trx-dataport-spezifikation/file
The $PGAV5 sentence is the relevant one.
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My idea is to build simple flarm (or something else) to TIS converter or get in contact with pilot aware team and implement it directly in PAW. This option would be the best.
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Hi Przemek
Just been looking at your work with the 695 Traffic question and wondering if you've progressed? I'm probably not the only one who'd like to take advantage of the 'blank' traffic screen on the 695.
I'll be watching with interest, good luck!
Les
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Hi. A agreed with PAW developer and I sent protocol documentation them. I think they need a bit of time to look for it, identify missing items and make testing.
I hope it's on good way.
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Likewise i am interested in the possibility of it being usable on my Garmin 795 assuming it uses the same protocol!
ivor
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All devices with traffic by TIS protocol so this one also.
I have tested on 696
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Having just bought a Savannah with a `garmin 496 may I join you in a wish to be able to connected it to the pilot aware unit
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Hi. Has anyone tried to display traffic data from PilotAware on a Garmin area 660 gps?
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Hi, any news about this topic? It would be really great seeing traffic on gps display. Tnx! Fabio
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I have a Garmin 795 fitted in my plane. It would be great if the 795 could link to my Pilotaware Rosetta and show the traffic on the 795's traffic screen.
I know this is an old thread, so I wondered if there had been any progress on this recently.
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Unfortunately there is no willingness on the part of Garmin to allow this
They use a proprietary protocol which is neither public, nor will they share
Thx
Lee