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  • EFIS(125)
1 Engine Senders Setup - Getting Indications to Read Correctly Featured

When you suspect an engine sender is not reading correctly, the steps to correct the problem are as follows: STEP 1: CHECK GROUNDING TO ENGINE BLOCK 95% of all engine sender reading trouble is cause by insufficient Reference Ground to Engine Block. Please…

2 Grounding Instructions - Engine Senders and Probes Reading Incorrectly Featured

If your Oil Pressure, Oil Temperature, CHT, EGT or RPM / Tach is reading incorrectly (low, high, intermittent), the very first thing to check is the Reference Ground to the Engine Block. About 95% of all sender reading troubles are related to inadequate engine…

3 Lycoming Installation Guide Featured

Manual for installing engine senders for Lycoming engine when using the RDAC and an MGL Avionics EFIS

4 XTreme General Connection Diagrams

General Connection Diagrams for the XTreme EFIS showing the CAN bus wiring option for connection and the legacy Airtalk / RDAC connection options.

5 AvioGuard Manual

The AvioGuard Manual is attached

6 Is my EGT probe reading correctly?

If you are unsure whether your EGT Thermocouple probe is reading correctly (MGL Avionics type-K thermocouple), there are a few simple tests you can do: CANDLE TEST With the EGT still connected to your instrument, hold the tip of the probe in the hottest part…

7 What is the K-Factor of the FT-60 Red Cube Fuel Flow Sensor?

The K-Factor of all FT-60 Red Cube Fuel Flow transducers is the same: 18,000 (Note: MGL Avionics uses Liters K-factors for flow sensors)

8 iEFIS Harness Wiring Schematics

Attached are iEFIS / iBox CAN bus harness schematics that detail connecting up the system. The iBox is connected to all devices, such as the AHRS SP-7 and SP-6, the autopilot servos, the RDAC XF, etc., via the CAN bus. There are 2 CAN buses per iBox and each…

9 ECB Switch Kit LED Orientation

When assembling the ECB (Electronic Circuit Breaker) Switch Kit, the FLAT side of the LED light goes on the LEFT side when looking at the PCB in this orientation (from the front with the switch at the top):

10 Setup of the uAvionix EchoUAT ADS-B with the iEFIS and iEFIS Lite

First, wire the EchoUAT to the iEFIS according to this article. The article shows using the EchoUAT with the Sandia transponder, but other transponders can be used. Then, follow the instructions below: Note: With the EchoUAT, the EFIS does NOT control the…


IMPORTANT NOTICE: You must make your own determination if the products sold by MGL Avionics are safe and effective for your intended applications. MGL Avionics makes no representations or warranties as to either the suitability of any of the products we sell as to your particular application or the compatibility of any of the products we sell with other products you may buy from us or anywhere else, and we disclaim any warranties or representations that may otherwise arise by law. Also, we offer no specific advice on how to install any of the products we sell other than passing along anything that may have been provided to us by the manufacturer or other users. If you are in need of further information or guidance, please turn to the manufacturer, FAA Advisory Circulars and guidance materials, the Experimental Aircraft Association, or other reputable sources.