radar antenna

**gra** · 03-04-2016, 01:15 PM

Anyone can recognize this antenna? Is a K band antenna used by Autovision UK in combination with Bee iii display...
I need to know FCCID for this antenna or any other technical info.
Thanks!

**Veil Guy** · 03-12-2016, 05:47 AM

Originally Posted by gra

Anyone can recognize this antenna? Is a K band antenna used by Autovision UK in combination with Bee iii display...
I need to know FCCID for this antenna or any other technical info.
Thanks!

It may be a low-powered patch antenna alongside a video camera. If it's polarized the detector may have a really tough time picking it up. If you see this often, if you have an typical RD, I know of some tilting their detectors 90 degrees to help with detection. I understand detection range can increase 3db-6db potentially, which is pretty significant.

**gra** · 03-12-2016, 06:14 AM

It is strange. I found the transceiver type as an "Innosent IPS-144"...
Some of the antenna case have shown an FCCID number (can not be recognised from pictures) but some of them do not?!
Some of them are "centered" on 24,125, some on 24,150...
Both Autovision and MPH did not respond to my emails...so I think these are made by another german third party source and label them "mph" but not obtaining any fccid or other accreditation from UK...

**Michael B** · 03-12-2016, 07:28 AM

The only way to determine if a radar detector will work better if rotated on its side is to test it against the radar source. The polarization difference at K band for most radar detectors that I have tested are significantly more than 6db in a lab environment. If the radar is swept or pulsed, it can also cause performance issues and inconsistencies with the radar detector independent of any polarization related issues.

**gra** · 03-12-2016, 08:52 AM

Michael, first of all i have to thank you for all good stuff that you publish in all these years. I learn so many things from you!
Regarding this "strange" CW antenna, using my RD in "normal" position, I can sniff them from about 1 km away, there is no problem...
Here are the spec for that tranceiver, do you think this is an horizontal polarization?

PS:
do you still have those documents with radar detector sensitivity comparision?