WTB - Transponder antenna

[flyboy0681]

The connector on mine broke and I need a replacement. The underneath panel where it's mounted was used for other antennas over the years and is a patchwork of fillers and looks like Swiss cheese. It would be easier buying a used antenna of the same type instead of fitting a brand new one and I'm looking for someone that may have one lying around. This is for a 1993 J model and has four mounting screws on the outside of the unit. I already contacted Alan Fox and he doesn't have any.

 

 

[jaylw314]

45 minutes ago, flyboy0681 said:

The connector on mine broke and I need a replacement. The underneath panel where it's mounted was used for other antennas over the years and is a patchwork of fillers and looks like Swiss cheese. It would be easier buying a used antenna of the same type instead of fitting a brand new one and I'm looking for someone that may have one lying around. This is for a 1993 J model and has four mounting screws on the outside of the unit. I already contacted Alan Fox and he doesn't have any.

 

 

Not sure this helps, but the factory transponder antenna is not readily available these days, I had replaced mine a couple months ago.  My A&P said he ended up getting the Comant CI-105 and installing new mounting hardware and that the cost and effort was trivial.  And the CI-105 is <$200.

Edit: now that I say that, I'm not sure which model it was, but I'll check my paperwork later tonight if you're interested

Edited February 2, 2022 by jaylw314

[flyboy0681]

4 minutes ago, jaylw314 said:

Not sure this helps, but the factory transponder antenna is not readily available these days, I had replaced mine a couple months ago.  My A&P said he ended up getting the Comant CI-105 and installing new mounting hardware and that the cost and effort was trivial.  And the CI-105 is <$200.

Edit: now that I say that, I'm not sure which model it was, but I'll check my paperwork later tonight if you're interested

Yea, the reason I put out this post is due to the original no longer being manufactured and I don't want new holes made in the belly panel to accommodate a new one. Going with the same one, albeit used and years old, is probably the best approach.

[Baker Avionics]

6 hours ago, flyboy0681 said:

The connector on mine broke and I need a replacement. The underneath panel where it's mounted was used for other antennas over the years and is a patchwork of fillers and looks like Swiss cheese. It would be easier buying a used antenna of the same type instead of fitting a brand new one and I'm looking for someone that may have one lying around. This is for a 1993 J model and has four mounting screws on the outside of the unit. I already contacted Alan Fox and he doesn't have any.

 

 

Grab one of these:

Comant E Series Ci E01 Transponder / ADS-B Out Antenna Non TSO | Aircraft Spruce

and then put screws in where the old screws used to be and BOOM!  Bob's your uncle!

[ZuluZulu]

Would one of these work for you?  From a 1994 J/MSE.

 

 

[flyboy0681]

15 hours ago, ZuluZulu said:

Would one of these work for you?  From a 1994 J/MSE.

 

 

I won't be back at the hangar for a while to take a look but will respond when I do. If anything, it would be the one on the top of the picture because it does have four external screws.

[flyboy0681]

Just found out the antenna is a DMNI70-2.

[ZuluZulu]

1 hour ago, flyboy0681 said:

Just found out the antenna is a DMNI70-2.

Mine are the Comant CI-305, two of them.