Archer sells 4 similar looking models: nav for left and right tips, and left and right com. The only differences are: (1) the left is a mirror image of the right. If you put a ‘left’ in the right wing tip, the connections will be upside down, but this isn’t too hard to deal with. (2) The com is tuned to slightly higher frequencies. As an above post mentioned, the nav should be installed flat (no problem) but it’s important to get the leading edge of the com antenna as vertical as possible, e.g., a sloped diagonally top to bottom.
Edit: if you move the antenna aft to avoid light wiring it works fine. For the com antenna you want to move it back so the leading edge is where the tip is thickest-to get max vertical throw.
Edit 2: I have seen a few crazy installations wrt grounding the ground leg. It must be electrically connected to the end rib, without excessive wire. Either mount it to the end rib with an angle (all metal!) or per directions under the tip attach screws, with a metal path (remove paint as needed) to the end rib.
Last edited by BobTurner : 11-26-2020 at 02:38 PM.