Manual

Manual and installation instructions: SD-Link adapter for TQ KRT2

Q: What baud rate does the KRT2 need for the SD link?

9600 baud, 8N1. The TQ documentation mentions 115200 elsewhere – this is incorrect for operation with SD-Link and is the most common reason why a connection fails initially. Set the serial interface of the KRT2 to 9600 baud, then the adapter will connect reliably.

Q: Am I allowed to use the adapter on my airplane?

The plug-and-play adapters are simply plugged in, not permanently installed – no modifications to the aircraft's wiring are required, and they can be removed at any time without leaving any residue. This is straightforward for ultralight and experimental aircraft. For a more detailed explanation – including for certified aircraft (E-class) – please see the page "Bluetooth adapters in aircraft: what is permitted?"

All installation instructions for the SD-Link adapters on the TQ KRT2 are available as PDFs, separated by adapter variant and navigation app, in 14 languages. This includes the entry you select in your app and answers to the most frequently asked questions during installation.

Instructions

Installation instructions as PDF

Select your language, then open the instructions for your navigation app. If there are no instructions in your chosen language, we will link to the English version.

SD-Link KRT2-E

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SD-Link KRT2-A Angled

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SD-Link KRT2-DS Dual Source

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All instructions and datasheets are available on the download page.

App settings

Which entry you select in the navigation app

The SD-Link will appear in the app under the name of the radio or a compatible protocol. This is the entry you select when choosing the device.

Navigation app	Entry in device selection
SkyDemon	TQ KRT2
VFRnav	TQ KRT2
EasyVFR 4	TQ KRT2
Sky-Map	TQ KRT2

Before installation

Frequently asked questions and stumbling blocks

What baud rate does the KRT2 need for the SD link?

9600 baud, 8N1. The TQ documentation mentions 115200 elsewhere – this is incorrect for operation with SD-Link and is the most common reason why a connection cannot be established initially.

Set the serial interface of the KRT2 to 9600 baud, then the adapter will connect reliably.

In which languages are the instructions for the SD link on the TQ KRT2 available?

The installation instructions are available in 14 languages. If a language is missing for a particular navigation app, we link to the English version. A printed quick start guide is included with every shipment.

Does this instruction manual also apply to older adapters?

Yes. The current instructions (version 2.0) describe all adapters of this series that have been shipped. Older links to previous versions automatically redirect to the current instructions.

Which apps are the adapters compatible with?

The SD-Link adapters are tested and compatible with the following navigation apps:

SkyDemon
Sky-Map
VFRnav
EasyVFR
XCSoar

We'll explain step by step how to send frequencies from the app to the radio .

Tip: In SkyDemon for TY91/TY92, select the device type “Garmin GTR225 Compatible”.

Am I allowed to use the adapter on my airplane?

The plug-and-play adapters are simply inserted, not permanently installed – no modifications to the aircraft's wiring are required, and they can be removed at any time without leaving any residue. This is straightforward for ultralight and experimental aircraft.

The factual classification – also for certified aircraft (E-class) – can be found on the page Bluetooth adapters in airplanes: what is allowed?

Don't have an adapter yet?

The buyer's guide explains the variants for TQ KRT2, the adapter finder leads to the right version in three steps.

KRT2 Buyer's Guide Adapter finder Compatibility

Questions before installation? Write to us at info@sdlink.de . We'll reply quickly and help you with the setup.