[apfubar]

Hi,

I have both the AIRU and AIR4 with the AMO's.

As to range, I think something like 15-20cm(6-8 inches) is aok.

With regards to angle, I think it is pretty close to 90 degrees. I can try this out later(when I get a little bit of time) on my new trailer and update. Remember that the other challenge with a non-king pin setup is the IR signals will be received even if the trailer is not hooked up, hence the lights will activate even when the trailer is unhitched, you can turn the unit off though.

On the king pin side, that is the best way, but agreed it is a pain to install. Also the pin itself doesn't have a long thread, and sometimes undoes itself (I have put thread lock on it now - so we will see how long that lasts).

I haven't torn it off yet, and that is overloading it a bit, pulling with the Aeromax, carson 4:1 reduction(or it did have), and 30kg's of models on the back, up a pretty nasty incline(which blew the 4:1 up).

Cheers,
AP