About two months ago I went to the Nashville airport to pick someone up. Driving into the terminal area, my ix alerted to laser, but the Redline didn't; I didn't attach much importance to the event.
Then, during the testing at MOAC in Georgia in February, it seemed like the ix was alerting more than the Redline, and again I didn't attach much importance to it at the time. The Redline was mounted above my RVM, and for a few runs I had the ix on the lower windshield, and then moved it back to its usual place facing rearward in the back window.
However, it was one of those little things that sticks in the back of one's mind with a nagging little question mark.
So, tonight I drove up to the airport and made 4 passes through it in each direction, for a total of 8 passes.
The long and the short of it is that the ix alerted to laser 11 times, and the Redline did not alert once.
I did three passes with the Redline front and the ix rear, then did 4 passes with the ix front and the Redline rear, and another pass with the Redline front and the ix rear.
All passes were made in highway mode with X, K and Ka enabled.
The Laser Interceptor did not alert either, which I consider a good thing, but I am very puzzled by the difference between the two Escorts.
Since I have the LI, I really couldn't care less about how well the RD's detect laser, but this is a very significant difference between the detection capabilities of two "high-end" RD's of the same brand.
Does the Redline have better filtering for laser than the ix, and can distinguish between LEO and navigational laser, or is my unit defective?
Anyone know anything about exactly how laser is used at airports, that might explain these results?