- Oct 16, 2020
- Reaction score
FYI, the standard horizontal position of your RD is actually electrically vertically polarized(V). Most traffic guns are either vertically polarized or circular. Your detector takes a 3dB hit on the circular polarization, but since you don't know if it was left or right hand circular, this is the best option.Irish r7 users may be interested in my recent redflex van interactions:....
The redflex was vertically polarized favouring a vertical mount.
(Seems easier to conceal r7 along side of mirror).
I'm getting at least 20-25% extra range with vertical mount!
400 meters toward camera in lane, 250 meters away from camera, other lane. And yes, they can get you in the other lane!
I'm very happy with this range.
The RF frequency was 24.087, which enables me to use wide k band rather the extended k band. Helps shut it up a bit.
Not sure if this is always the case, but that's what my recent tests showed in my area. So keep experimenting!
From what you are saying, the redflex must be horizontally polarized(H). In an ideal situation, this could reduce your received power by as much as 30dB for the normal mounting of the RD. However, when a signal bounces off of something the polarization can become a mix of H & V. Hence you only got a little reduction in range with the normal mounting. If all you face is this one camera, then you're probably OK. If you face any other radar, your going to take an unknown hit(up to 30 or 40dB) on reception range of those vertically polarized antennas. If they are circular, your OK, as they give the same 3dB hit to either H or V.
BTW, for every 6dB of received power, it roughly doubles the detection range....