Can Someone Please Help Me Understand The SV and GTN Integration?

[Dynon101]

I'm watching the Garmin GTN training video

For those that do not already know, when the GTN is initializing if you hold the "D" button down while the unit is firing up it goes into DEMO mode and you can use the instructional demo mode in your airplane and you can see the action on the SV screens (and not need to use the Windows GTN training tool that only provides visuals of Garmin screens) and this way you can get better familiarization using your own equipment.

At 21:55 the instructor is talking about the GTN traffic mode where it will call out traffic...I presume that since SV talks to the iPad Foreflight app I would leave the GTN traffic off and rely on the Foreflight situational awareness audio?

If the Traffic button on the GTN was turned on, does the GTN traffic appear on the SV display or will it just show up on its own display?

Same with the TOPO... I presume that the topography on the SV display is generated by the SV database system? Since I only have the SV-250 GPS my system is set up so that the 2020 compliant GPS source is the GTN am I correct in thinking that when using the GTN GPS source all that does is the GTN tells the SV what the LAT/ LONG is and then the SV system uses that position and SV uses its own database to generate the visuals on the SV screens?

THANKS for your help!

 

[kellym]

I'm watching the Garmin GTN training video

For those that do not already know, when the GTN is initializing if you hold the "D" button down while the unit is firing up it goes into DEMO mode and you can use the instructional demo mode in your airplane and you can see the action on the SV screens (and not need to use the Windows GTN training tool that only provides visuals of Garmin screens) and this way you can get better familiarization using your own equipment.

At 21:55 the instructor is talking about the GTN traffic mode where it will call out traffic...I presume that since SV talks to the iPad Foreflight app I would leave the GTN traffic off and rely on the Foreflight situational awareness audio?

If the Traffic button on the GTN was turned on, does the GTN traffic appear on the SV display or will it just show up on its own display?

Same with the TOPO... I presume that the topography on the SV display is generated by the SV database system? Since I only have the SV-250 GPS my system is set up so that the 2020 compliant GPS source is the GTN am I correct in thinking that when using the GTN GPS source all that does is the GTN tells the SV what the LAT/ LONG is and then the SV system uses that position and SV uses its own database to generate the visuals on the SV screens?

THANKS for your help!

You are assuming too much. The GTN supplies the Dynon transponder with all the required elements except items that come from ADAHRS.
The GTN does NOT AFAIK get any traffic info from the Dynon. My preferred mode is to have PFD traffic alert turned on, MFD traffic off, because I have tried having both on and get way to many calls for aircraft that are non-factors. The GTN does not receive traffic itself...it needs a compatible Garmin ADSB receiver to get that. The Dynon doesn't get traffic unless you have their 470 or 472 receiver. IF you have that, it can be relayed to Foreflight with the wifi dongle(s).

 

[Dynon101]

So the GTN Demo mode is kinda fun to play with. The Pro Tip of the day is to only use it in a hangar where the Skyview GPS cannot get a GPS fix.

To enter the Demo Mode on the GTN hold the D button down when the GTN is first electrified and keep holding it down until it boots then take your finger off the D button and it is in demo mode.

You need to enter at least two waypoints (doesn't really matter if they are fixes or airports) and press the DEMO touch screen option and just enter in an altitude and airspeed and it starts flying from point to point. You can make up a flight plan from anywhere to anywhere because all it will do in demo mode is go from the first waypoint in the flight plan to the second and so on and you tell it what speed and altitude and it just moves along.

The other tip is that the GTN will display its normal messages and those will cover up the "DEMO" touch screen option so it will be confusing at first so to un-confuse yourself you will need to press the BACK button about 3 times to display the DEMO touch screen option.

Since the Dynon GPS is not seeing any satellites it is not giving any location information so it reverts back to the second GPS source and that is the fake position generated by the GTN. The Dynon PDF will just be stuck on the airplanes current magnetic heading and altitude so the PDF picture only looks real during a leg of the flight plan where the GTN navigating on a course that just happens to match up with the airplane heading. At other times the PDF picture will look like what the tail gunner or waist gunner view would be out their window.

Still the little airplane icon will be moving along the ForeFlight map and leaving the green "breadcrumbs" and occasionally the airplane icon will be pointed in the direction it is moving along the map but most of the time it is pointed somewhere else moving sideways or backward.

I have a second SV-1000 and its moving map is moving right along with the GTN navigation and if you select the FLIGHT PLAN source to GTN you can see the waypoints on the flight plan list.

You can program an instrument approach with the full procedure and it will do the whole thing from IAP to MAP to Missed Approach Procedure to the Hold and it will even enter the hold according to the published entry.

I did a couple of DME arcs followed by an ILS and it will just use the fake GPS position from point to point to point and if you switch to "green source" there will be no green needles but the flight path will just fly along using the fake GPS position and it will enter the holding pattern.

If you flight plan a long flight between airports you can tell it to fly 1000 KIAS during the enroute portion to save time.

It is helpful to "hangar fly" instrument procedures and you can learn to load airways and approaches and activate them without burning any $4.25 AVGAS.