Sv 15.4.7 compatibility with Apollo GX-60

[Reed]

I can’t get my gx-60 working with skyview.

It looks like Dynon added support for the Apollo gx-60 aviation message format in 11.0, however I am have a terrible time getting my new sv1000 to accept the complete MOVMAP message from my gx-60

the Dynon serial port diagnostic page shows no message errors and lots of received messages, so I thinthe serial port wiring is good.

the Dynon navigational information screen shows valid data in 10 of 14 fields, including lat, Lon, course, etc. however, no altitude or fix flags. It looks like Dynon is expecting to receive altitude messages(type z) despite the gx-60 install manual showing this message id is not supported.

On the gps fix diagnostic page, skyview is reporting correct position, no altitude,2d fix status and no integrity.

the map screen shows “no position”, though ground speed and course are shown.

my question: does anyone have the gx-60 working with sv firmware’s 15.3.5 or 15.4.7?

what am I doing wrong?

thank you,
Reed


here are more details:
1. Skyview firmwares tried: 15.3.5 & 15.4.7
2. Apollo GX-60 (com 1, "MovMap " message type, extended MovMap both on & off,)
3. skyview settings (com1, aviation format, tried both gps 1 and pos 1)

Message fields supported by GX-60 according to Apollo/garmin
1. A, B, C, D, E ,G, I,K,L, Q, & T

Message fields being listed on dynon Nav info debug screen (see nav info aviation msg 1 -4.png):
1. z - not received (not supported by GX-60 according to GX-60 manual)
2. A - RX OK
3. B - RX OK
4. C - RX OK
5. D - RX OK
6. E - RX OK
7. G - RX OK
8. I - RX OK
9. K - RX OK
10. L - RX OK
11. S - no received (not support by GX-60 according to GX-60 manual - "T" is used for Nav Flags)
12. l - no received (not supported by Gx-60)
13. Q - RX OK

It seems the Skyview is listening for messages z, S, & that the GX-60 is not sending them.

 

[Dynon]

So we'd expect the GX60 to work as an HSI and NAV source, but not as a complete position source. It doesn't send altitude information that SkyView needs to render a complete GPS picture. It also isn't a 2020-compliant position source, so generically, if you're in the US, you'd want to pair that device with the SV-GPS-2020 (or other certified navigator). Are you able to bring up HSI information?

Per other customers, here are the settings that should work
-Serial in device: Generic Aviation
-Serial in Function: GPS 2 (or any number you want, don't choose POS for the function though)
-Serial in/out baud rate: 9600
-Serial out device: None

 

[Reed]

So we'd expect the GX60 to work as an HSI and NAV source, but not as a complete position source. It doesn't send altitude information that SkyView needs to render a complete GPS picture. It also isn't a 2020-compliant position source, so generically, if you're in the US, you'd want to pair that device with the SV-GPS-2020 (or other certified navigator). Are you able to bring up HSI information?

Per other customers, here are the settings that should work
-Serial in device: Generic Aviation
-Serial in Function: GPS 2 (or any number you want, don't choose POS for the function though)
-Serial in/out baud rate: 9600
-Serial out device: None

Hello,

2020 compliance is not a factor as adsb out is complied with separate, outside of the Dynon setup.

More important than 2020 compliance is the fact that gx-60 is ifr certified for enroute and non-precision approaches.

the hsi does work - however position is not shown.

where in you documentation does it state this is not a fully compliant source? The Dynon wiki says “known working” next to the gx-60

I have tried the setting provided -in fact, those are the setings I am using.

can you please verify other users are having success with the gx-60 on 15.4.7?

 

[Dynon]

The wiki is probably not specific enough - it's historically been a community effort, and we'll be making efforts to make it more authoritative in the future (or replacing it with something else).

There are fundamentally two 3 types of information that SkyView gets from external sources. One is what we consider a "complete position fix". This is ALL of the information to consider a GPS fix valid and usable within SkyView. The GX60 does not provide this, unfortunately.

The second is "GPS" information, which really means "navigation information that comes from a GPS navigation source". The GX60 does provide this, and that's why you're seeing the HSI work - it's sending over course deviation and other HSI-oriented navigation information, and why it's listed as compatible.

The third is radio-based VOR/ILS information, which doesn't apply in this case.

No aviation format output device is able to be a complete position source on its own, unfortunately, since it doesn't transmit all of the necessary information.

Given that you have ADS-B out solved, the SV-GPS-250 would fill in the missing position information. Alternatively, do you have any other GPS devices that will also be connected to the system?

 

[Dynon]

By the way, a good reason to have another GPS onboard: should the primary external device fail, it's really nice to have SkyView's map as a backup for situational awareness. In my own airplane, I have a modern navigator that is a full position source, but still have a SkyView GPS receiver on board for this sort of redundancy.

 

[Reed]

This is a solid bit of information - thank you for the clarity. I suggest you copy paste this into the GPS wiki and into the HSI source info table in the install manual.

Dynon support is loaning me a SV-GPS-250 to test (thank you). I suspect this will be the solution to my troubles and get me going. I'll add it to my farm of GPS antennas (#3).

Reed

 

[djones]

To close the loop on this. For the GX60 to work on SkyView, you must have a POS1 position source connected to SkyView. Preferably the SV-GPS-250 or the SV-GPS-2020. The GX60 as the sole GPS connected to SkyView does not give us enough information for the HSI to work.