Ford Ranger Forum - Forums for Ford Ranger enthusiasts!

Go Back   Ford Ranger Forum - Forums for Ford Ranger enthusiasts! > >
Forgot Password? Join Us!

Welcome to Ford Ranger Forum

Reply
 
Thread Tools Search this Thread

  #1  
Old 06-18-2010, 05:23 PM
STL STL is offline
...............

 
Join Date: May 2009
Posts: 23,398
Default Radar Gun and GPS question

I was curious how often do officers have to have their radar guns calibrated/tested?

I was also curious if anyone knows how accurate the MPH on a GPS are?

My double din radio is able to display driving avg. mph, overall avg. mph and maximum speed.
__________________
2005 Edge

Reply With Quote
  #2  
Old 06-18-2010, 06:46 PM
mjonesjr mjonesjr is offline
Is today the day?
 
Join Date: Feb 2010
Posts: 254
Default Re: Radar Gun and GPS question

The radar/laser guns have to be calibrated annually.

My portable Garmin GPS is spot on. I got pulled over a couple weeks ago and when the officer asked how fast I was going, I told him what speed I was doing when I first saw him. He said, I was correct and even showed me his laser gun to prove it; super nice State Trooper.
__________________
"The strongest reason for the people to retain the right to keep and bear arms is, as a last resort, to protect themselves against tyranny in government."
- Thomas Jefferson -

Support Our Troops!
Reply With Quote
  #3  
Old 06-18-2010, 06:49 PM
STL STL is offline
...............

 
Join Date: May 2009
Posts: 23,398
Default Re: Radar Gun and GPS question

Could a court of law dispute if you were to bring in evidence showing that your GPS shows a recorded speed that is less then the police officer.
__________________
2005 Edge

Reply With Quote
  #4  
Old 06-18-2010, 06:52 PM
mjonesjr mjonesjr is offline
Is today the day?
 
Join Date: Feb 2010
Posts: 254
Default Re: Radar Gun and GPS question

Unless you had someway to take a screen shot at the exact moment the officer radar/lasered you, no it wouldn't stand up in court.
__________________
"The strongest reason for the people to retain the right to keep and bear arms is, as a last resort, to protect themselves against tyranny in government."
- Thomas Jefferson -

Support Our Troops!
Reply With Quote
  #5  
Old 06-18-2010, 07:01 PM
mikesturbo94 mikesturbo94 is offline
No foolin it was spoolin
 
Join Date: Mar 2010
Posts: 1,383
Send a message via MSN to mikesturbo94
Default Re: Radar Gun and GPS question

How bad is the ticket lol
__________________
2008 ford escape xlt 3.0 v6 4x4

94 xlt 5spd longbed,
Was a built 2.3 turbo currently no motor or trans
5.0 swap coming soon
6/5 drop with dream beams,8.8 373 posi,17x9 wheels,swp seats,8k hids, autometer guages, Wideband o2, shiftlight, illusive trans x-member, 01-04 4x4 front bumper
PNW Crew
AC
Reply With Quote
  #6  
Old 06-18-2010, 07:27 PM
Johnbaum13 Johnbaum13 is offline
<-----Buzz Killington
 
Join Date: Jul 2009
Posts: 1,232
Send a message via Yahoo to Johnbaum13
Default Re: Radar Gun and GPS question

Some municipalities calibrate the Radar guns daily.
__________________
I got my Jesus on the dashboard, but the Devil's under my hood!
Reply With Quote
  #7  
Old 06-18-2010, 07:28 PM
STL STL is offline
...............

 
Join Date: May 2009
Posts: 23,398
Default Re: Radar Gun and GPS question

Quote:
Originally Posted by mjonesjr View Post
Unless you had someway to take a screen shot at the exact moment the officer radar/lasered you, no it wouldn't stand up in court.
Well the thing is did not dawn on me to take a picture then or even show the officer. I took a picture when I got home with my camera and it has the time stamp.

It is saved on the radio until you reset it. I would have to have a judge follow me to the truck to view it as I can not take the radio into court

Quote:
Originally Posted by mikesturbo94 View Post
How bad is the ticket lol
Bad enough to have a mandatory court date.
__________________
2005 Edge

Reply With Quote
  #8  
Old 06-18-2010, 07:32 PM
mjonesjr mjonesjr is offline
Is today the day?
 
Join Date: Feb 2010
Posts: 254
Default Re: Radar Gun and GPS question

Quote:
Originally Posted by STL View Post
Bad enough to have a mandatory court date.
I don't know how it is in MO, but in Indiana that is at least 30 mph over.
__________________
"The strongest reason for the people to retain the right to keep and bear arms is, as a last resort, to protect themselves against tyranny in government."
- Thomas Jefferson -

Support Our Troops!
Reply With Quote
  #9  
Old 06-18-2010, 07:34 PM
mikesturbo94 mikesturbo94 is offline
No foolin it was spoolin
 
Join Date: Mar 2010
Posts: 1,383
Send a message via MSN to mikesturbo94
Default Re: Radar Gun and GPS question

Outch so reckless then? Atleast here in wa that's what gets u and instant court date
__________________
2008 ford escape xlt 3.0 v6 4x4

94 xlt 5spd longbed,
Was a built 2.3 turbo currently no motor or trans
5.0 swap coming soon
6/5 drop with dream beams,8.8 373 posi,17x9 wheels,swp seats,8k hids, autometer guages, Wideband o2, shiftlight, illusive trans x-member, 01-04 4x4 front bumper
PNW Crew
AC
Reply With Quote
  #10  
Old 06-18-2010, 07:35 PM
Johnbaum13 Johnbaum13 is offline
<-----Buzz Killington
 
Join Date: Jul 2009
Posts: 1,232
Send a message via Yahoo to Johnbaum13
Default Re: Radar Gun and GPS question

So take the pic with the time stamp with you to court, and hope for an understanding judge. how much different is the "clocked" speed versus your "GPS" speed? I've been pulled over for speeding while being passed by another vehicle. The officer actually clocked the other vehicle and tried to pin it on me. I explained my story to the judge, and while he didn't throw it out, he did reduce the fines substantially.
__________________
I got my Jesus on the dashboard, but the Devil's under my hood!
Reply With Quote
  #11  
Old 06-18-2010, 07:40 PM
mikesturbo94 mikesturbo94 is offline
No foolin it was spoolin
 
Join Date: Mar 2010
Posts: 1,383
Send a message via MSN to mikesturbo94
Default Re: Radar Gun and GPS question

I had the same thing I was paced I asked for the records of he last calibration of the cop cars speedo and the times he wrote down were all messed up thrown out
__________________
2008 ford escape xlt 3.0 v6 4x4

94 xlt 5spd longbed,
Was a built 2.3 turbo currently no motor or trans
5.0 swap coming soon
6/5 drop with dream beams,8.8 373 posi,17x9 wheels,swp seats,8k hids, autometer guages, Wideband o2, shiftlight, illusive trans x-member, 01-04 4x4 front bumper
PNW Crew
AC
Reply With Quote
  #12  
Old 06-18-2010, 08:01 PM
STL STL is offline
...............

 
Join Date: May 2009
Posts: 23,398
Default Re: Radar Gun and GPS question

Quote:
Originally Posted by Johnbaum13 View Post
So take the pic with the time stamp with you to court, and hope for an understanding judge. how much different is the "clocked" speed versus your "GPS" speed? I've been pulled over for speeding while being passed by another vehicle. The officer actually clocked the other vehicle and tried to pin it on me. I explained my story to the judge, and while he didn't throw it out, he did reduce the fines substantially.
There is a 20 mph difference. Which if you go by my GPS I should just have a fine and no court date.
__________________
2005 Edge

Reply With Quote
  #13  
Old 06-18-2010, 09:41 PM
2001xlt4d 2001xlt4d is offline
habba babba, Bartle doo?
 
Join Date: Aug 2009
Posts: 1,074
Send a message via AIM to 2001xlt4d Send a message via Yahoo to 2001xlt4d Send a message via Skype™ to 2001xlt4d
Default Re: Radar Gun and GPS question

like everyone has said. annualy ( 3 months). i highly doubt it would be that off. Either something is up with gps and its throwing a bad speed or the radar is out of calibration. It happens very easily. If its anything like down here, they would look at the gps pic, but probally do nothing about it because you installed it yourself. not saying you did or would, but ppl would put speed lesseners on the gps just to get out of tickets. So keep that in mind,
__________________
2001 ford ranger XLT/4.0 sohc./160,000
Mods:Cb/recon third brake light/air silencer mod/new door speakers and h/u / shorty console, 245-75-16 goodyear wrangler duratracs on rock crawler rims. hellas and 03 honeycomb grille.

Quote:
Originally Posted by surfer03133 View Post
ya, it can get tough to get the tool to fit in the slot,
Quote:
Originally Posted by 2004xlmiller View Post
drilling? id prefer not to drill down there.
EDGEMAN4.0 FOR PRESIDENT!!!!!!
Reply With Quote
  #14  
Old 06-18-2010, 10:05 PM
Vrod21 Vrod21 is offline
Ford Tough
 
Join Date: Dec 2009
Posts: 325
Default Re: Radar Gun and GPS question

GPS's are accurate if a speed is constant for a long period of time. If your speed changes rapidly (faster, slower, faster, slower) in a short period of time they are incredibly inaccurate. Where you looking at your GPS and not your speedo?

Radar/Lasers are certified annually (once a year) by the Department of Agriculture here in CO. Operating guidelines for use of any laser/radar for speed detection are:
Radar-
Lamp test
Tuning fork test (55/35mph)
Prior to use/after use (Daily)

Laser-
Lamp test
Scope test
Delta speed test
Laser test
Prior to use/after use (Daily)

Truth be told, you know your speed.
If you did it be a man and take the punishment.
If you know you didn't, go to court and plead your case.
__________________
(SOLD) 2003 Ranger 4.0L V6 FX4
2001 F150 Supercrew Triton V8 (DD)
2008 Fusion 3.0L SEL V6 (my baby)
1992 Taurus SHO MTX (my toy-almost Supercharged)
2004 Nissan Murano SL AWD (Wife's car)
Reply With Quote
  #15  
Old 06-18-2010, 10:37 PM
FireRanger FireRanger is offline
Blinded by the light
 
Join Date: Sep 2009
Posts: 7,674
Send a message via AIM to FireRanger
Default Re: Radar Gun and GPS question

If the officer hit you wait laser and I were a judge, I would probably believe that over a picture of a GPS. I wouldn't put much faith in this but its worth a shot.
__________________
(Formerly)
FireRanger
2003 Edge 4.0 4wd

How to: Aux light wiring, relays, & fuses
Info: 300+ intake threads here on FRF
Info: HID Projectors
How To: NO HEAT Troubleshooting Guide
Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Paint gun recommendations DangerRanger01 Fabrication and Tool Tech 6 09-17-2010 06:47 PM
Gun Storage normandg General Ford Ranger Discussion 12 05-20-2010 09:34 PM
I support the second amendment. (gun pics) 01_ranger_4x4 Off Topic 16 04-23-2010 03:46 AM
Radar detectors??? 878ranger878 Off Topic 5 03-13-2010 09:13 AM
laptop gps? surfer03133 Music/Movies/Computers/etc. 6 08-24-2009 07:22 AM