Certain features of V1 are intended to warn of radar bands not used in the U.S. They are not activated at the factory. For instructions on activation, go to http://www.valentine1.com/lab/MikesLabRpt3.asp
The Euro Mode and Ku band are separate features and require separate activation.
Euro Mode narrows and intensifies radar coverage, and limits it to K band plus the sections of Ka bands used in Europe for photo radar.
When Euro Mode has been activated, upon power up you will see the sequence "E," "u," "r" appear in the Bogey Counter. When the power-up sequence is complete, the Bogey Counter will show either "U" or "u." Pressing the Control Knob will toggle between them.
Select "U" to enable both K and Ka (Photo) bands. Select "u" to enable only Ka band.