Radar Gun in Vehicle

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wesm1957

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I have 2 units I got off e-bay. One is a Kustom Trooper this is K-band and I have a Decatur hand-held unit that is X-band. I had the Trooper unit in my car and turned on one night on my hour drive home from work and had a spot light put on me from the other side of the interstate. I got mine to radar radio control cars. I found that with the unit on driving here in Michigan not many people pay attention to their detectors and didn't seem to notice the antenna on the dash of my car. I have had MSP and local departments cars pass me and just look.
 

Chris-M

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Battery powered X-band oscillator

Here are pics of my 10.525ghz 'Zapper'. I've had it for about 10 years.
Traded a BEL radar detector for it. These 'zappers' aren't made anymore.

I tested the range with my V1, which I can set off within 150'.

Takes the boredom out of road trips!

8)
 

jwood

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All I know about it is, its ok to have and operate "AS LONG" as you have a FCC LICENSE to TX on the Frequency band that the unit operates... My Department as well as all Police Agencies have a FCC LICENSE to operate the radar units that they use. If your found in operation of the unit and are found not to have a License to TX in that band :arrow: Say Hello to the FCC Enforcement Department...


********

PUBLIC NOTICE
FEDERAL COMMUNICATIONS COMMISSION
DA 96-2040

The FCC continues to receive many inquiries about regulations governing police radar, radar detectors, and other radar devices used to measure the speed of an object. This Notice explains the scope of FCC regulation over these devices. It updates and supersedes the Public Notice on the same subject dated August 1, 1985. Radar units are transceivers, i.e. they both transmit and receive a signal, and operate under rules for the Radiolocation Service contained in Part 90 of the FCC's Rules. As such, they are certified and authorized by the FCC under Parts 2 and 90 of the FCC's Rules. Part 90 specifies the frequencies and technical standards for radar units, but does not address how radar units are to be operated as devices to measure an object's speed. Also, the FCC Rules do not contain provisions concerning the calibration of radar units, the reliability of the readings, or operator capability requirements. Radar units are used by police and other public safety agencies to measure vehicle speeds. Under Part 90 of the rules, licensees in the Public Safety Radio Pool (such as state or local government entities), that already have a FCC license for a radio communications system, may operate radar units without obtaining a separate license for them. Radar units may also be used under Part 90 by non-public safety entities such as professional baseball teams, tennis clubs, automobile and boat racing organizations, private transportation firms, railroads, etc., to measure the speed of objects or vehicles. Non-public safety

users, however, are required to obtain a Part 90 license from the Commission for use of radar units. Additionally, many public safety agencies also operate unattended, low-power, transmit-only radar units under Part 15 of the FCC's Rules. The National Highway Traffic Safety Administration (NHTSA) is the federal agency concerned with the enforcement of highway speed limits and with the operation of radar as enforcement tools. Information on NHTSA regulations concerning radar use can be obtained from the Department of Transportation, National Highway Traffic Safety Administration, 400 Seventh St., S.W., Washington, D.C. 20590. Radar jammers are transmitters tuned to interfere with ("jam") a radar signal. The intentional use of jammers is considered "malicious interference" and is strictly prohibited by the Communications Act of 1934, as amended, as well as by FCC Rules. Anyone using a jammer risks such penalties as losing an FCC licenses, paying a fine, or facing criminal prosecution. Radar detectors are radio receivers tuned to receive radar signals and are used by motorists to provide a warning of any radar activity in the vicinity. In this regard, the FCC regulations pertaining to receivers do not address the subject of radar detectors. The use of radar detectors by members of the public, therefore, does not constitute in itself a violation of FCC Rules. Some jurisdictions, however, have local regulations or statutes concerning the use of radar detectors. Inquiries about such statutes should be directed to local law enforcement authorities. In summary, the FCC Rules regulate radar transmitting units but provide limited regulation over receivers, with the subject of radar detectors not being specifically addressed in the FCC Rules. For more information about the subject of this notice, contact the Wireless Telecommunications Bureau, Public Safety and Private Wireless Division, at (202) 418-0680. FEDERAL COMMUNICATIONS COMMISSION RADAR GUNS Title 47 Code of Federal Regulations - Telecommunications Part 90 - Private Land Mobile Radio Services Subpart H - Policies Governing the Assignment of Frequencies Rule 90.20 Public Safety Pool Rule Section 90.20(f)(4) states:

"A licensee of a radio station in this service may operate radio units for the purpose of determining distance, direction, speed, or position by means of a radiolocation device on any frequency available for radiolocation purposes without additional authorization from the Commission, provided type accepted equipment or equipment authorized pursuant to 90.203(b)(4) and (b)(5) of this part is used, and all other rule provisions are satisfied. A licensee in this service may also operate, subject to all of the foregoing conditions and on a secondary basis, radio units at fixed locations and in emergency vehicles that transmit on the frequency 24.10 GHz, both unmodulated continuous wave radio signals and modulated FM digital signals for the purpose of alerting motorists to hazardous driving conditions or the presence of an emergency vehicle. Unattended and continuous operation of such transmitters will be permitted." No Federal Communications Commission requirement exists that the make and model of the radar gun be recorded on the radio station license.

********

Hope this answers your Questions.....
 

poltergeisty

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Chris-m you wouldn't happen to have the schematic for that would you? Boy there is a whole lot of speeders I like to try and slow down!

As with the fcc rules. How can truckers have this new radar thing to tell them some one is in there blind spot.

But do you know what the true black box transmiter I would like to have is?

One that will send those emergency messages to the radar detectors that are able to receive them or should I say deceive them :lol: :twisted: Train where?
 

Voyager

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jwood said:
poltergeisty said:
As with the fcc rules. How can truckers have this new radar thing to tell them some one is in there blind spot.

Low Power unlicensed portion of the band...

True, but don't confuse unlicensed operation to set detectors off with intentional jamming of legitimate radar units. If someone uses a Part 15 device to jam a Part 90 (licensed) device, it's illegal and can be more costly than the speeding ticket you (you = anyone) may be trying to avoid. Just a note of caution to the masses.

I am, of course, refering to the 'brake tester' units being used to jam radar, not the trucker units designed to locate close objects (cars).

Joe M.
 

poltergeisty

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shaggy2dope said:
I have got an application in to the FCC for a license to operate on the three main radar bands used for speed enforcement. You MUST have a license for the band you are going to operate in. As far as certification is concerned, unless you are using the unit to write tickets for a law enforcement agency, there is no requirement. I live in Texas and have an email from the Texas Department of Public Safety that spells it all out. They are even legal in commercial vehicles. As long as you are using it for entertainment purposes and have an FCC license you are good to go. The worst part is the length of time waiting for the application to be processed. Mine was submitted 4\16\2004 and is still being worked on. It has to go through numerous reviews and the like. But when I get it you can be rest assured that my brand new Stalker DSR 2X dual antenna KA band radar unit will be pissing people off on I35 between Dallas and Laredo.
Well now you went and done it I work for the FCC I well have to make sure I don't grant your license. HA HA HA HA :twisted:



No I don't work for the FCC. Hope you get it to slow down a lot of people who are in a big dam hurry!
 

poltergeisty

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Voyager said:
True, but don't confuse unlicensed operation to set detectors off with intentional jamming of legitimate radar units. If someone uses a Part 15 device to jam a Part 90 (licensed) device, it's illegal and can be more costly than the speeding ticket you (you = anyone) may be trying to avoid. Just a note of caution to the masses.

I am, of course, refering to the 'brake tester' units being used to jam radar, not the trucker units designed to locate close objects (cars).

Joe M.
But I wonder if the trucker ones do? I don't think anyone wants to "jam" police radar as the example above shows it well get you pulled over that should be a lesson. It's a good way of keeping someone from using there radar detector to try and aviod a tickit! Radar detector used to avoid a ticket Ha HA HA! :twisted:
 

poltergeisty

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pills said:
Greyhound busses used to have em. Don't remember why but I remember seeing the signs on them.
I just can't help but reply to this subject. It is very interesting but it might get moved to the tavern. Any ways. The greyhound buses probabley have them for use as a blind spot detector.

You said vorad. voice over radar?
 

Chris-M

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poltergeisty said:
Chris-m you wouldn't happen to have the schematic for that would you? Boy there is a whole lot of speeders I like to try and slow down!

I wish that I did have a schematic for this zapper. I can't find much about it after searching the internet. If one were to contact the original manufacturer maybe they would or would not provide one.

Electronic Rainbow used to sell these handheld zappers as a kit or assembled. This is their current website. I'm curious as to why they quit offering them for sale.


http://www.rainbowkits.com/

As for using mine to jam a police radar, it won't work! You know those trailers with radar units and big digital MPH readouts? When I drive by one I hold my zapper up and it has never affected the display. There's no logical way that this handheld zapper with a 9v battery can overpower a commercial radar unit.
 

Chris-M

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Hmm..one of the EBAY ads, the seller says this:

I used this unit only to test the effectiveness of those Rocky Mountain Radar scramblers. Of course the scramblers didn't do anything as expected from reading all the other reviews on the internet, and the radar was able to get a speed reading at all times. It is no longer required to have an FCC license to operate k band police radar. Install this in your car to set off radar detectors or simply add this to your radar fleet with the department. This package doesn't come with tuning forks. You may purchase these separately in my ebay store.

I'd figured all along those 'jammers' were just gimmicks. No way they had the RF power to overpower a commercial police radar unit.

And the part about 'no longer need a license for K band'. That's news to me that I am going to try and nail down on the FCC site. My KR11 is K band. 8)
 

SCPD

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There are no ifs, ands or buts about it. You must have a FCC license to operate a radar transmitter. That goes for X, K and KA. Anybody who does not get one and gets caught operating is going to get what the FCC calls a "Notice Of Apparent Liability". In other words, get out the checkbook. Although the police official or whoever observes you operating a unit can not directly write you a summons, they sure as hell can report you to the FCC. And it won't take the feds long to look you up in the database. Like I said before, I have been waiting on my license since April of 2004 and I will continue to wait because as easy as it would be to go ahead and operate it, you can be rest assured that there will be at least one cop who will see the unit and not be able to resist stopping you just to find out what it's all about. And that could turn sour real quick, i.e. $$$$$$$$$$.
 

Voyager

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poltergeisty said:
Voyager said:
True, but don't confuse unlicensed operation to set detectors off with intentional jamming of legitimate radar units. If someone uses a Part 15 device to jam a Part 90 (licensed) device, it's illegal and can be more costly than the speeding ticket you (you = anyone) may be trying to avoid. Just a note of caution to the masses.

I am, of course, refering to the 'brake tester' units being used to jam radar, not the trucker units designed to locate close objects (cars).

Joe M.
But I wonder if the trucker ones do? I don't think anyone wants to "jam" police radar as the example above shows it well get you pulled over that should be a lesson. It's a good way of keeping someone from using there radar detector to try and aviod a tickit! Radar detector used to avoid a ticket Ha HA HA! :twisted:

I doubt it for several reasons.

1. They are aimed to the sides.

2. They MAY only be active when the turn signals are on (I'm not sure, it it would make sense).

3. They most likely operate on a different frequency than RADAR.

Joe M.
 

Voyager

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Chris-M said:
I'd figured all along those 'jammers' were just gimmicks. No way they had the RF power to overpower a commercial police radar unit.

Two comments.

First, to jam the radar, it would have to be operating on the SAME frequency as the radar unit. Most of these brake testers operate on an ADJACENT band, but it's close enough to set off the detectors.

Second, you aren't competing with the POWER of the radar unit - you are competing with the REFLECTED SIGNAL of the radar unit which is much weaker, and could be comparable to a Part 15 device. It's the reflected signal that tells the unit your speed. If it can't tell the difference between the reflected signal and your Part 15 signal, the reading won't be correct. Of course, it's also possible that the unit may display an error speed GREATER than your speed, too (you're doing 80 and it registers 103).

So, you would have to tune your brake tester to the same frequency as the radar units, but that can be done. Now, stability is another issue. Those units that operate on a 9V battery are not very stable, I bet. Stable enough to set off detectors, but not effectively jam radar. Still, even the attempt can get you in hot water.

Joe M.
 

pills

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VORAD stands for Vehicle On-board RADar

Used to detect objects that you might hit.
 
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