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PostPosted: Sun Apr 30, 2006 21:48 
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David Edgar the Walsall Consultant electronics engineer who in 2004 uncovered a number of serious Gatso operational faults with his aptly named “Notso accurate” electronic timing device has hammered West Midlands police yet again, today following a bitter court room battle.

Walsall Magistrates Court finally threw out the case against him of allegedly speeding on the Black County Route, the Court dismissed the case brought by West Midlands Police because the District Judge was not satisfied or convinced that the Gatso had complied with government type approval.
Edgar who represented himself as an Expert Witness had gathered prima facie evidence which proved that the Gatso which photographed his vehicle had produced totally inaccurate speed measurements due to it being located too near to very high levels of electromagnetic radiation.

Having visited the site Edgar soon discovered that the Gatso was being bombarded with 4 times the permitted levels of electromagnetic radiation. His concerns began when he observed an O2 cell phone mast and overhead power lines that transmit 400,000 Volts within a few hundred meters of the Gatso speedmeter. Having used the Freedom of Information Act 2000 Edgar discovered that the O2 mast was pumping out over 500 Watts of RF power and the overhead power lines were inducing very high energy fields way beyond the permitted levels which the Gatso was designed and approved for.
Edgar is now advising other motorists who have been convicted by this badly sited Gatso to appeal their conviction and sentence.

Any one know this guys e mail address?
Thanks Dead slow.


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PostPosted: Sun Apr 30, 2006 23:26 
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It would be helpful if you can provide a source for this. Mr. Edgar has presented a LOT of useful things but appears to have gone about it in the wrong manner, eg. I believe he was helping a motorist who was defending a S172 prosecution. Also his website (formerly www.notsoaccurate.com ) was quickly filled with what appeared (to me) to be unsubstantiated rants which would make anybody think he was a crank, whether they were true or not. Somebody also pointed out that he is a Vexacious Litigant which is not an easy thing to attain, although if his rants about the "old boys club" were true then this would make such a things a lot easier!

Anyway, I believe somebody on PePiPoo has got a lot of information about the Gatso via. the FoI which might provide some information. I think a Field Strength Meter would be used to measure the levels he was talking about, they are quite easy to obtain and an experienced Radio Amateur would probably have one and be willing to do measurements for free.

Gareth


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 Post subject: David Edgar
PostPosted: Mon May 01, 2006 06:56 
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Thanks for the information,
Mail was forwarded to me via Idris Francis as a press release to him self, MCN & Daly Mail.


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PostPosted: Mon May 01, 2006 08:54 
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For reference...
http://www.ce-mag.com/archive/2000/sepoct/flintoft.html

Also....http://www.analab1.com/emc.html

We need to check what the immunity standard the type apporval is issued against.

There should be a demand to check the field strenght near every fixed and mobile site. Also urgent review of the specification agains potential mobile sources such as CD radio and military applications.

Also this has happened before in Oz...

http://www.compliance-club.com/archive/print_article.asp?artid=71

Quote:
EMC Problems with Speed Detection Cameras cost Victoria Government AUS$30 Million. The state government of Victoria, Australia, has commissioned a special investigation into the Fixed Digital Speed Detection Cameras. This follows from the report of the independent testing of the fixed digital speed detection cameras, commissioned by the Department of Justice after concerns were raised about erroneous readings and incorrect infringement notices. On-site testing, engineering investigations and EMC testing showed the occurrence of both ‘over-readings’ and ‘under-readings’. The faulty readings were due to electromagnetic interference, poor installation and maintenance and degradation of the in-road sensors.

The faulty speed readings resulted in the issuing of fines and cancellation of driving licences, and this has called into question the reliability of electronic equipment used throughout the state’s traffic control measures and for other law enforcement activities. Many motorists who have had their licences cancelled are threatening to sue the state for damages and consequential losses. The State government has allocated about AUS$30 million to reimburse the fines imposed on motorists and to compensate those with claims for losses resulting from licence suspension due to penalties from the flawed cameras. The government will also have to meet the cost of replacing or improving the 41 fixed cameras throughout the city’s road grid.


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Speed camera policy Kills


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PostPosted: Mon May 01, 2006 12:38 
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Quote:
We need to check what the immunity standard the type apporval is issued against.

There should be a demand to check the field strenght near every fixed and mobile site. Also urgent review of the specification agains potential mobile sources such as CD radio and military applications.

:idea: Someone should set up a service to go and check sites for a fixed , reasonable fee and a scale of charges for travel and court appearances so that Nick Freeman and Barry culshaw can use thier services. (and others)

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Speed limit sign radio interview. TV Snap Unhappy
“It has never been the rule in this country – I hope it never will be - that suspected criminal offences must automatically be the subject of prosecution” He added that there should be a prosecution: “wherever it appears that the offence or the circumstances of its commission is or are of such a character that a prosecution in respect thereof is required in the public interest”
This approach has been endorsed by Attorney General ever since 1951. CPS Code


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PostPosted: Mon May 01, 2006 13:51 
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Statement from Motorola on tetra band radio (as used by some UK police forces)...

motorola web site


Quote:
Motorola TETRA terminals comply with the Radio and Telecommunications Terminal Equipment directive, which covers areas such as EMC and RF performance. Like other RF transmitting devices such as GSM, analogue PMR, etc., TETRA radios can interact with co-located electronic devices such as breath testing and speed detection equipment. Motorola is aware of ongoing research into the area of EMI protection, which will result in recommendations for co-located equipment operating in TETRA RF fields. Results of this research are expected this year.


It begs the question of reliability of the LTI20/20 in close proximity to police 2 way radios and mobile phones.

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PostPosted: Mon May 01, 2006 19:30 
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Thanks guys, I think this is worth a shot.
First I need a Field Strength Meter and then know how to use it? Any radio hams on safe speed?
I have had a look at some of their sites but you have to register to get on the forums.
Found the meters but there are several sorts?
I have started looking above the Gatos and there are a lot with hi voltage cable's running over head also mobile masts near by.
Just maybe this may be the chink in there armour we need to look at.


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PostPosted: Tue May 02, 2006 00:05 
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I was going to use this in my case, gatso was 5m away from a Gas pumping station with its own HV pylon feed and lots of big transformers :) Never got that far unfortunately ;)

Also, less than 1 mile away was a company test site for military microwave transmitters. Could easily have been a large dish pointing in my direction.


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PostPosted: Tue May 02, 2006 06:44 
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Dead slow wrote:
Thanks guys, I think this is worth a shot.
First I need a Field Strength Meter and then know how to use it? Any radio hams on safe speed?

:yesyes: but I'm only a lowly M3. However it's something I want to learn to do so I'll be asking other more experienced peoples about monitoring signal strength to find how many watts of RF are being received at a location. :)

(I even visited Radio Shack today!)

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