File the complaint as detailed as possible on their form and forward any correspondence to your HOA. If it starts to get ugly, the FCC will back you up. No need for an attorney unless they start breaking other laws.. going on your property w/o permission... damages.. vandalism.. harassment..
My parents went through this with a HOA in Northern VA.. the covenece stated the dish had to be secured as to not cause harm to a passerby, not be in or within 5' of a common area and had to be hidden as much as possible. The only place they could get LOS was on the side and measured was 5' 3" from a common walkway.. they threw a fit because the lawn company apparently used that area to "turn around" Anyways after a complaint filed and a forward to the HOA board they sent an "Approval" letter oO