EchoUAT with SkyFYX - Internal vs External antenna?

[JonJay]

Originally Posted by Pilot135pd

That?s the ADS-B OUT antenna. Remember it reads the transponder output from the transponder?s antenna and then has to transmit the ADS-B signal through that little antenna.

That was my understanding. Thx

[WingsOnWheels]

Originally Posted by WyoDave

So am I understanding that some have mounted the echo UAT black box on the inside of an under wing access panel? As in the box mounted to the inside of the panel with the stubby antenna mounted through the panel? I know the GPS puck itself can be mounted anywhere it can see the sky. The black box and stubby antenna are what Im asking about. In my old age I'm easily confused, so wanted to clarify before I start drilling holes where I shouldn't!

Dave,

Yes, that is how I have mine mounted. The box is attached to the inside of the wing access panel and the UAT (pole) antenna is mounted through the panel. I have the GPS puck mounted on a shelf in the wingtip. Just make sure to secure everything so the wires etc can't mix with the controls. This arrangement required a 90 degree BNC adapter to the pole antenna.

[BH1166]

Originally Posted by Pilot135pd

That?s the ADS-B OUT antenna. Remember it reads the transponder output from the transponder?s antenna and then has to transmit the ADS-B signal through that little antenna.

Close....there is a micro voltage in your aircraft wiring of the outbound transponder data (squawk and pressure altitude)that the echo picks up by ?sniffing?( since UAT is wired in) . This is the reason for the ability to adjust the threshold on the UAT. As always, gps puck is placed in open to view above, the transponder looking antenna in the package , as with most other like antenna, place on bottom/little ball thingy pointing down. Not saying it would not work in upward position in wing. The signals go to ground stations. I believe most installations will be this way.

[jselvatici]

Originally Posted by Pilot135pd

That oil filler extension tube is missing the safety wire. Do you know how I caught that? Because I got dinged for it too on my condition inspection last weekend

Pilot135pd can you please post a picture of how you safety wire that part?
I looked on mine and I don't have safety wire on the upper part either, but I only see the point to have safety wire pass thru on the top part (short), not on the long one. Did you had to drill a point in there?
Ideas are always welcome. - Thank you.

[DougCronkhite]

Originally Posted by WingsOnWheels

Dave,

Yes, that is how I have mine mounted. The box is attached to the inside of the wing access panel and the UAT (pole) antenna is mounted through the panel. I have the GPS puck mounted on a shelf in the wingtip. Just make sure to secure everything so the wires etc can't mix with the controls. This arrangement required a 90 degree BNC adapter to the pole antenna.

Are your connections easy enough to manage when you have to remove that inspection panel say for a CI? This seems like the easiest way for me to mount it up in my 8..

[jliltd]

Originally Posted by Pilot135pd

That oil filler extension tube is missing the safety wire. Do you know how I caught that? Because I got dinged for it too on my condition inspection last weekend

That RV-7A belongs to a friend but I will let him know. He bought it out of a famous builder's shop in Ohio about 18 months ago and apparently it's been that way.

To be more correct the dipstick tube extension (and base tube bottom) should be safety wired for both directions. Tightening and loosening. That keeps the gaskets from working loose when an over-zealous pilot cranks the dipstick in real tight, which is a bad idea. Or when he subsequently tries to remove the dipstick and it's super tight after temperature cycling. The dipstick should only screw in about 1/4 turn after making contact. It does not have to be tight. I saw some good advice here on VAF to only tighten the dipstick with the knuckles of the index and middle finger and not use the fingers themselves. Effectively a bio-metric torque limiter. My preference is are REAL brand dipstick tube gasket at the base of both the bottom and top tubes with the aforementioned dual direction safety tying. I usually use safety wire for the top one and safety cable for the base which can be hard to get to after the engine is installed.

[Pilot135pd]

Originally Posted by jselvatici

Pilot135pd can you please post a picture of how you safety wire that part?
I looked on mine and I don't have safety wire on the upper part either, but I only see the point to have safety wire pass thru on the top part (short), not on the long one. Did you had to drill a point in there?
Ideas are always welcome. - Thank you.

So sorry for the delay, I've been swamped and frustrated with other things on my plane and forgot about this.

[DougCronkhite]

Curious..

uAvionix sells the MUX cable for GTX327 support, but I've seen people say the cable isn't necessary. What's the pros/cons of hardwiring the transponder vs sniffing? Just trying to figure out the clear path of upgrade here..

[WingsOnWheels]

Originally Posted by DougCronkhite

Are your connections easy enough to manage when you have to remove that inspection panel say for a CI? This seems like the easiest way for me to mount it up in my 8..

The Echo box has a connector for the harness. For inspection, I just let it dangle. If you need to remove the inspection panel, you can just unplug the one connector. Since the antenna is mounted to the inspection panel as well, the antenna cable can remain connected.