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Originally Posted by Kato
I remember being told a while ago that radar detectors have a vertical polarization. A multanova has horizontal polarization, which is why mounting the detector vertically allows it to detect the horizontal polarization better.
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Kato that is spot on. Police radar is mostly circular polarized, with the exception of the Stalker ATR in the U.S. which is vertically polarized. Multanovas are horizontally polarized.
Do a search for "vertical +multanova" (check "Search for all terms" button) on the rd.net forum to get posts such as:
http://www.radardetector.net/viewtopic.php?t=24690
http://www.radardetector.net/viewtopic.php?t=25883
http://www.radardetector.net/viewtop...r=asc&start=15 - fourth post down
Also here are some videos:
http://www.delonixradar.com.au/videos/X50_vertical.wmv
http://www.delonixradar.com.au/videos/STi_vertical.wmv
etc etc
Simple test; do what Kato did, when you next find a Multanova, pull over in front of it and slowly move closer until you first get an alert on your detector. Then tilt the detector 90 degrees and watch the increase.