My understanding from the literature included with the Marco was that the unit is not transmitting any type of signal until such time as the hand held tracking unit is opened and is “actively” tracking the tag on the quad...if you ever have need of it.
(Knock on wood) I’ve never experienced any trouble with my mp that I would attribute to the Marco being positioned where I have it on my quad.
Like I said, I have mine located on the same area as you on both my Mavic Pro and my Mavic 2 Zoom and never had a problem either.