12-13-25

I am installing the Dynon EFIS system and it requires a magnetometer that is located in a non-magnetic area. Since my fuselage is primarily steel tubing I opted to use Dynon's Remote Magnetometer and locate it the outboard most bay of the RH wing tip. By placing it in the rear portion of the wing bay I was able to position it far enough away from the strobe light which was the component most likely to cause interference. I also located the OAT probe in the wing trailing edge and connected it to the Remote Magnetometer.

To secure the magnetometer I drilled #30 holes in the wing lower skin and dimpled them for a #6 screw. I then used brass screws and washers but aluminum self-locking nuts with nylon inserts.

I purchased a 15-foot network cable from Dynon and routed it through a 1/2" PVC conduit I had secured inside the wing LE ribs. This turned out to be the perfect length as I installed a connector at the inboard end of the wing with an adapter that will allow me to connect two network cables together and also enough room at the outboard end to wrap around into the last bay and connect to the Remote Magnetometer.

The OAT probe was located in a rib for the aileron outboard hinge point and the wires routed through the rear spar lightening hole and connected to the Remote Magnetometer. The OAT probe came with a lot of wire which I did not need so I trimmed it to length. The wire uses a Molex connector so I had to buy the specific pins for it from DigiKey.

A lesson I learned was to route the wires and install the probe jam nut BEFORE inserting the wires into the connector. Turns out the connector was too big to fit through the jam nut.