16e is the same I just tried it now instead of pressing go to position afterwards I just let the USALS take it to the position again no signal so I pressed 4-5 clicks towards east and boom I get a perfect signal identical scenario to Thor 0.8w.Well that is totally different scenario to what you have happening with 16 so it could well be alignment issues or wrong coordinates.
Ring your installer and tell him to use big repair washers. Thanks me later.