The Dynon transponder uses a TNC connector instead of an BNC connector. Fortunately, Fry’s carries RG-58 TNC crimp on connectors. I’m using RG-400 which uses the same connectors. I crimped it on to the end of a piece of RG-400. I’ll cut it to length and put a BNC connector on the other end to connect to the antenna.
I was originally thinking I’d install the transponder and antenna under the passenger seat, but Dynon recommends at least 3′ of separation between the transponder and COM antennas. Instead, I decided to mount the transponder behind the baggage wall underneath the pitch servo. The transponder clips to a mounting bracket that is screwed to the center rib just in front of the shelf where I’ll mount the ELT.
Now that the EMS is in its final position, I cut the oil and fuel pressure lines and added crimp ring terminals.
I also crimped the connectors on the manifold pressure sensor wires and installed it in the MAP sensor.
Lastly, I installed the sensor wire on the oil temperature sensor.
I played around with routing the shunt and fuel flow sensor wires over to the right side of the engine. I decided to have them follow the Light Speed ignition sensor wire to where it mates up with the starter wire, then turn and follow that across the engine compartment.
Here you can see those wires follow the starter cable over to the connector.
They then jump over to the alternator feed wire. The shunt wires separate there and will connect to the shunt just behind the left tube here. The fuel flow wires follow the alternator feed wire forward to where the fuel flow sensor will be mounted.
