Finally a verdict is in on STi A4M9 vs RX65 v4.5 vs Photoradar (Multanova)
I made six passes at the camera with the RX65 and STi. This was DEFINITELY one of the low powered cameras as there wasn't much advance warning.
STi 4/6 times had a brief Ka alert up to 500m from the Multanova.
RX65 6/6 times no brief alert at all at distance.
STi began constantly alerting about 250m from Multanova.
RX65 began alerting about 100m from Multanova.
Note: these runs were done with the detectors at opposite sides of the windscreen and the sides they were mounted on were swapped after run 3 to be fair to both detectors.
An interesting note is that the STi shows the frequency of the Multanova on the display for a good half a second before it audibly alerts. ( I have it in Tech Mode)