anton wrote:
I think the reason you don't get slip effect is because you point the kit then squeeze the trigger.
WOT! You mean use it properly?The TRAINED operator does exactly what you say, follows the manufacturers instructions and gets a reading that is, not by chance, a very close measurement of the vehicle speed.
I can't see what is wrong with that.
anton wrote:
Lets be clear we were using it incorrectly, but wrong speeds were detected. This was nothing to do with any tv program, it was in a carpark after going to court. (lorry tacho & gps v lti20/20 , the case continues!)
The tach v 20.20 is complete balls to be quite frank, every case I have seen the vehicle tacho shows the vehicle to have been travelling at the measured speed within 2 or 3 mins of the offence. Are tachos and LTI20.20 systems time synchronised? NO THEY ARE NOT! so the tacho v 20.20 is as I say complete balls and should be thrown out when the tacho shows a speed as measured within 15 minutes (a reasonable doubt type figure) of the LTI20.20. GPS is no defence as it's your word against the evidence.
anton wrote:
In-correct readings happen when the kit is moved around from target to target with the trigger squeezed or very long distances where a small camera shake causes the laser to move a much larger distance.
Well that's fine and dandy for you and your non-type approved system. For the Type Approved systems in use in the UK, not the same as the garbage you are using in your program, this has not been seen in any of the 4 systems we have, we have tried these methods with all of the kit, no such readings.
No speed errors have been detected when the system has been compared to time/distance measurements when target vehicles have been measured on a "range". We have ranges on the motorway where we can compare our laser readings to measured time/distance average speeds, NO ERRORS have been detected in speeds other than that calculated for the expected cosine error. Every test returning perfect results for speed when comparing laser to average.
Operator do not move the laser around from vehicle to vehicle or sweep it around when making measurements, they don't stand on their head, squint their eyes, wear funny hats (well some do) or generally take no notice of the Operating Instructions as you seem to be doing!
anton wrote:
We found there was a technique to getting a wrong reading. a smooth sweep was required and I was told that a slight angle on the kit helps.
However after a min or two they were popping up every other time. this requires setting the target speed to zero. The makers of the lti20/20 cleverly designed it so it does not display car speeds that are complying. This hides the accidental errors when they occur. There is some error detection but on our lti20/20 we could beat it. It may not have had the most recent firm ware. It was not in curent service and did not have a callibration certificate.
Oh marvellous, there is a technique that takes a significant effort to perfect and you have to set the threshold to 0 for it to work. We are not trained in these techniques nor are we willing to be stupid enough to practice such shoddy, stupid methods that are totally against all advice and instruction. If this is what it takes to obtain wrong readings, all be it with a version of the device we don't use than exactly what basis is the program going out on?
Look Mr BBC, if you use this device in a clowns outfit while doing a back flip and shake it about after you have set it to a false threshold and altered the error trapping algorithms you can cock up the readings.
You really all need to start wearing red noses and take up your true positions as stand up comedians.
anton wrote:
I would be interested to try out the method of getting reflected readings.
Why, you have already proved that you have no basis to call the system into doubt with your cock-eyed methodology and we have tested ours to show that they are sound devices when used correctly with the approved UK version.
anton wrote:
I have no doubt that some camera opperators get no wrong readings and others get a lot. Pointing at a road sign is a lot easier than a moving car at 300m.
You may be assured that camera operators (not comedians such as those on the BBC program) have very little problem returning readings that have yet to show an error in all of the practical testing we have put the equipment through.
You may also be assured that pointing at a vehicle at 300m is just as easy as pointing at a road sign, it just isn’t difficult. In fact even a slightly skilled operator has absolutely no problem obtaining readings out to the full operating range; it really is very very easy.
To say it isn't when you haven't even had a go is just complete rubbish as is to comment on accident causations when you have no access to any supporting data.
If this is the sort of clowning around you all get up to in your desperate attempts at undermining these devices you should really have a sit back and think very hard if you really want anyone with more nouse than a BBC reporter to take note.
Get a life!