My Sti-R has essentially stopped alerting to radar with no service required message. I have reset it - dried it out in my garage and its basically deaf (alerts fine to my LA III).
The problem started a few days ago during some of the snow we have been getting every day. At first I thought that the receivor was covered in Ice as this has happened before, but the Sti-R would not alert to anything. No falses or any other radar that my Sti or 9500i would alert to.
It will alert to X band stop lights if I am literally within 10 feet of the unit. and this morning I came accross a LEO running C/O Ka where my Sti picked it up from over a mile away and the Sti-R alerted when I was about 20 feet from the car and it was an i/o alert.
I will have to spend a few hours tomorrow taking my dash and glovebox apart to get to the junction box and remove the receivor to send to Bel next week.
Just another reason to run 2 detectors.......The Sti is still my favorite detector, that one has rarely, if ever let me down in the last 3-4 years. Just wish I had gotten the service required message.