Jump to content
SAU Community

Margin Of Error For Handheld Lasers

big col

By big col,
in Western Australia

 Share

Recommended Posts

big col Collaborator

big col

Posted
Posted

I recently got done for speeding along wanneroo road where a stretch of it drops from the normal 70 down to 60 (which I didn't know... thought all of wanneroo road was 70!).

I got pinged by a cop with a handheld laser doing 82km/h, and he only allowed a 2km margin of error bringing it down to 80km/h shafting me with a $300 fine and 3 demerit points. I know that multanovas must allow for a 3km margin of error, but the cop was being uncooperative and obviously wanted to get his quota up and put me in the 20-29km bracket rather than the 10-19km/h bracket which would have been less money and points.

Now my question is what is the margin of error police have to allow for HANDHELD speeding cameras? I've been searching on the net but can only find the margin for multanovas. A link to the source would be helpful.

I have no problems with paying a speeding fine if I get caught, but I do have a problem when I think the cop is breaking the law to penalize me more.

Link to comment
https://www.sau.com.au/forums/topic/217331-margin-of-error-for-handheld-lasers/
Share on other sites
Mayuri Krab Grand Master

Mayuri Krab

Posted
Posted (edited)
yeh and 2+2 = 6.3

I thought it was 2+2 = 100

Darn... looks like I need to retake my math class again :D

& which section of wanneroo is this on?

I know that the section where I travel alot on (the section near along dogswamp) there is a slight hill going up & they like to put their speed cams there. Was working along that road once & notice tons of cars getting flashed >_>"

Edited by Mayuri Krab
xtc Proficient

xtc

Posted
Posted

im pretty sure its 2km error as lasers are more accurate then mutinovas. shoulda said it was the car infront/behind, i got away from that excuse before which was darn lucky on wanneroo aswell just after morley dr. intersection. did 40km+ on tonkin hw and had 7 points taken off with 1k fine. since then ive bought myself a radar detector. they work good but only if your doing less than 90kms in order to stop in time.

GODTHRILA Experienced

GODTHRILA

Posted
Posted

Gazza is right with the 10% speedo calibration... they only have to make their speedos accurate within a 10% margin. You never know, you might have a speedo that is dead on but with 10% margin for error up their sleeve it's doubtfull.

The lasers and multanovas do not have any margin of error. Each unit (in a perfect world) is tested with a tuning fork and calibrated. There will be actually variences due to the angle the laser is fired from (eg two lanes of traffic, cars side by side... car closer will be slightly different to the car further away)... the good thing there is that cops kow this and they will usually (as they have in this case) removed a little for angular margin of error. Unfortunately with multanova's, as they are a basically an automatic letter in the mail after a quick photo review, there isn't anyone who will down grade your speed.

What this means is that you could be thinking you are doing the right thing on the freeway, putting along at 100km/h on your speedo and then get flashed actuall doing 110km/h... on a long weekend thats going to cost you $150 and 4 points thanks very much Mr Car Manufacturer.

Flip side is you could be over on your speedo and actually under the speed limit... fingers crossed all of our speedos are this way inclined.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • GTSBoy
      WGNC34 - floor mats

      By GTSBoy · Posted

      I dunno about that as a blanket statement. Pitwork is Nissan's "Nissan genuine" thing, and for stuff like timing belts, I have found them to be excellent. Of course, for things like oil filters, you always use proper trusted brands anyway, not whatever the OEM has taken to using.
    • MBS206
      R34 Skyline climate control unit transistor

      By MBS206 · Posted

      Ahhhh... If you were putting 12V to the led in there, that's likely made it very unhappy. Chances are how you put power, was 12V across an LED that's meant to only have about 20mA through it at peak, and a forward voltage of about 1.8 to 2.4 volts. That circuit is likely only a 3V3 circuit, and will have a resistor in series with the led too. That's my guesstimate on that light, without having touched one.
    • Murray_Calavera
      Tein Circuit Master- rebuild worth it?

      By Murray_Calavera · Posted

      Another vote for installing them and see how you go.  I mean, you already own them, why would you not fit them? 
    • Duncan
      NC MX5

      By Duncan · Posted

      I have had too many of those over the years, my cars have a toolkit or at minimum a cheapy multi tool thing because its too easy to be snookered by some stupid plastic clip that stops you checking the battery terminal isn't loose.
    • Duncan
      WGNC34 - floor mats

      By Duncan · Posted

      Basically, if there is a part# on the nissan catalogue, it is a genuine part. There is a thing called "new old stock" which is stuff made years ago but never sold (or landfilled), but it is super hit and miss what you can buy. Other than some expensive Nismo stuff there is nothing new being made that suits these cars. The only time to be a little careful is (mostly in the US I think, but maybe Japan too), Nissan started rebranding some cheap crap maintenance parts like oil filters as "Pitworks"; stay away from them, if you are buying cheap just buy whatever the local car parts shop carries The three part numbers have an explanation on Amayama: 0V005 is auto, base style 0V015 is manual 0V505 is auto, hectic momo branded ones, maximum F&F points there!
×
×
  • Create New...