Anyone purchased from eBay before?
http://cgi.ebay.com.au/NEWEST-Beltro...QQcmdZViewItem

Does it sound dodgie? Will getting one from America mean it may not work correctly in Australia?

I bought mine from America, think it cost me around $300au. Works fine.

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As far as Laser goes your done for.

There is still argument as to how reliable laser readings are, technically speaking a laser reading should normally be followed up with a standard K reading as well for confirmation, whether the cops follow this procedure in WA im not sure.

My Escort X50 gives me plenty of time for multinovas, unless im stuck behind lots of cars then the warning is rather short, but your rarely speeding when travelling in traffic

Jaron? have you selected Ka narrowband on your detector ? Also make sure its not mounted to high. high = good laser detection but poor multanova.

If too low its going to be looking mainly at your wipers. Oh and run it in highway mode.

In addition i Use to have mine angled to the left a bit which use to work out well however lately i have come across a few that are over on the right hand side of the road so have angled it forward again.

Well laser does not have to be followed up with a k reading, dunno where you got that from. As for mounting it high for a good laser pickup, sounds a bit stupid as 99/100 will fire the laser at the numplate/front of your car. Even if it does pick it up, your screwed anyway cos I already got ya.

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I've never heard of this following up with a K-Band. Why spend more time swapping radar/laser guns to a more inaccurate measuring system?

Also, as Giddy said, 99% of police will point the laser at your numberplate, therefore because the beam of the laser is so narrow you need the detector as close to the numberplate as possible. I have found in my testing that mounting the detector up high gives better multanova range.

As for angling the detector thats just funny talk.

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I was under the impression they needed a 3 second reading?

Therefore you get a warning... smash those brakes hard!

Wrong?

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From my experience (*cough*) they usually take a couple of readings to make sure of your speed.

This "could" give you a bit more warning, but usually involves the "why did you lock up your brakes back then"

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RX75 mounts a laser sensor on the plate, it has saved me before when theyve gone for multiple readings, usually at long distance on the old-coast rd between bunbury/mandurah.

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Laser works by measuring the time it takes a laser pulse which it transmits to go out to a target and come back. However, there are many other pulses in the environment of the detector which can interact upon it, and the detector must be programmed to distinguish between those "false" pulses and the "true" pulses which it has transmitted.

As mentioned above, the laser is very concentrated and has a characteristically narrow beam. However At a point 1,000 feet away from the detector, a laser beam is about three to three and one-half feet wide and has a height of about three feet. This may be contrasted with the beam of radar which is about 320 feet wide at a point 1,000 feet away from the radar transmitter. Although the laser beam is much more concentrated than the radar beam, it is far from being a true pinpoint. As the three by three and one-half foot laser beam strikes the very irregular surface of a moving motor vehicle, it does not hit a single, highly-reflective point on the vehicle. In effect, it splashes over a portion of the vehicle. This is true even though operators are trained to fire at the front license plate area of the vehicle, because the beam is considerably larger than the license plate. Indeed, depending upon the angle at which the beam hits a vehicle, and depending upon the vehicle's location with respect to other vehicles on the highway, particularly a multi-lane highway, it is conceivable that a portion of the beam splashes onto another vehicle, creating an effect called the sweep error.

It is important for the laser detection device to measure distances between it and a motor vehicle at the same point on the motor vehicle. In traffic law enforcement, the ultimate use of the detector is to fix the speed of a vehicle. However, the primary measurement made by the detector is distance. (In this respect, the detector contrasts with the Doppler radar units employed in police work. The Doppler radar units compute speed from differences in frequency between microwaves. For them, distance is not significant.) This distinction is important, because, although the entire vehicle travels at the same speed, not every point on the vehicle is the same distance away from the detector. A vehicle traveling along a highway at 60 miles per hour travels 88 feet in a second. In the one-third second which elapses while the laser speed detector is firing 43 pulses at the vehicle, the vehicle will travel 29.33 feet. If the laser pulses being fired by the detector were allowed to sweep from the front grille of the vehicle to the windshield of the vehicle during the one-third of the second the pulses were being fired, the pulses reflecting back from the windshield would be four feet farther away than the pulses reflecting back from the front grille, the detector would conclude that the vehicle traveled 33.33 feet instead of the 29.33 feet which it actually traveled, and the detector would show the speed of the vehicle as being 68 miles per hour instead of the correct 60 miles per hour. This would be what is known as "sweep" error. If the detector were allowed to sweep for ten feet along a vehicle, that would lead to about 20 miles per hour being erroneously added to the calculation of the vehicle's speed. If the detector were allowed somehow to pan from one vehicle to another vehicle in a way which would lead to a distance differential of 30 feet, that would convert to a speed reading 60 miles per hour too high.

thats the pure world maths and physics behind it.

In addition most laser guns are meant to be tested and tri-pod mounted for reliable readings. Im not sure what the deal is with LTI but Pro Laser recommends it.

If i remember correctly the LTI 20-20 is used in WA and is under intense scrutiny in the UK already for its mis-readings.

http://www.speedcameras.org/speed-ca...cle.php?id=117

sorry for the long post!

In order to counteract these measures I have read that you need to do the following to increase the multanova range on a RX65:

1. Turn car and detector on.
2. Turn detector off.
3. Load Wild Gold Disc 1 in CD player.
3. Listen to track 13.
4. Switch car off.
5. Repeat 10 times and the Ka band will be super narrow with super range.

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