I had planned to use the GTR 200 in my RV-6 build and am installing my 396 GPS. Does this mean that I will not have airport identifiers on the display unless I tune via selection from the 396?

Thanks,

Larry

Hello Larry,

When used with your GPSmap 396 GPS, the GTR 200 will receive information about airports in your flight plan as well as certain nearby airports, but will not have access to the full transfer of all frequency database information as it would when used with one of the newer units referenced above. So you will likely see frequency identifier information being displayed for certain frequencies, but not every one.

- Matt

Thanks for the follow up details. I will be interfacing my 396 GPS with both a Trio AP and the GTR200. Is the functionality above enabled with one way or two way communications. I am not sure that I can bridge both devices on the transmit side of the RS-232 communications channel.

Thanks,

Larry

Larry,

The RS-232 connection between the GTR 200 and any portable GPS is a one-way connection (OUT from the GPS, IN to the radio).

- Matt

496
 

I have my GTR 200 fed by my 496 and I haven't come across any issues. Works great with the identifiers (really slick). Haven't done much x-country with it so I might find some identifiers missing over time. Also my 496 feeds my Dynon D180 autopilot. All work fine.

Thanks for the assistance guys. I appreciate it.

Any reports yet?
 

Hi all, just wondered if anyone had one of the Garmin GTR 200's working in an RV yet? If so, might you give some comments to the rest of us?

cheers

Geoff

I do
 

I have posted a few comments about the GTR200 in past few months. I have been flying with it since around Sept 2013.

Outstanding radio, great features, amazing intercom. Garmin listens to user comments and updates the software (simple SD card interface) based on user input. Some of the updated functionality was based on some of my input (and others possibly as well).

I highly recommend it.

Yep ... all for that ...!! I buy one right away :-)

Hello Matt,
could you help me understand the wiring between the GPSMAP 39x and the GTR200? I had no luck finding documentation of those two units only going but what's most likely and similar devices.

From my understanding the cable shielding is connected to black ground wire on the GPSMAP side and to the common grounding block on the GTR side (btw doesn't that create a ground loop?) according to GTR 200/GTR 200B Installation Manual Revision P Page D-4 where it shows an Aera 79x. Then the "DATA OUT (BLUE)" on the GPS MAP will send signals to PIN 24 "RS-232 IN" on the GTR according to Garmin GPSMAP 695/696 Owner’s Manual, Page 208

As you mentioned the opposite direction doesn't need to be connected cause there is no data flowing, is that still correct?

I plan to remove the fuse from the red power lead and instead use a 4A circuit breaker to have all the circuit protection in a single place. Anything wrong with doing that?

Last question, can you describe what the GPSMAP does when connected to a G3x? Not something i plan in the near future but would be curious to know how they work together