motoapco25
Member
i have a couple of older speedgun`s id part with one for a nextel i860 lol you can operate one under a FCC tech ham lic. there a blast on the highway at night pull the trigger and watch the light show in front of you
Radar Gun in Vehicle
- Thread starter lcmontana
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pills said:
Got it thanks. I was trying to figure that one out and I was thinking that it was the radar feature that will send messages to your radar detector. I guess this works by a particular modulation?
K5MAR
Member
w4esu said:
How are you ID'ing?
Mark S.
motoapco25
Member
hmmmm morse code on the trigger :lol:
jhooten
Member
w4esu said:
The ham band is 10.0-10.5 gHz. The X band speed radars operate at 10.525 gHz. Looks to me like you would be 25 mHz out of band.
STiMULi
Member
If Morse code is given on K band on the highway and there is no one there to hear it did it give ID? 
Does a bear shoot radar on the road?
Does a bear shoot radar on the road?
If Morse code is given on K band on the highway and there is no one there to hear it did it give ID?
Does a bear shoot radar on the road?
Let me get this out of the way first, VORAD operates at 24.750Ghz, therefore, probably won't set off a radar detector.
Secondly, radar guns sold by sports stores by manufacturers like Bushnell and JUGS are FCC Part 15 devices, which are much lower power devices and have a more constricted beam than police radar units. You can even buy a radar gun at Toys R Us! It's marketed by Hot Wheels. Look it up.
Thirdly, K band police radar units are centered at 24.150Ghz and are allowed +/- 100Mhz. Meaning 24.050-24.250Ghz. Due to the design of these units, interference between units is almost impossible, due to frequency drift caused by heat, humidity, voltage and all kinds of other factors. You would have to be well within 1Mhz of another unit to interfere. Do the math...
If you have such a desire to operate a police radar, might I suggest the easiest way is to become a ham radio operator. A tech class license will give you operating priveldges on 24.000-24.250Ghz. Here's a correspondence between myself and the FCC regarding their stance on the operation of police radar (note that you MUST identify your station, CW at 10WPM ON/OFF will legally work):
"Part 97 is not written in terms of particular pieces of equipment and whether or not they may be used as amateur station transmitters. Rather, Part 97 specifies the standards an amateur station must comply with when it transmits. There is no statement on the website that addresses whether any particular piece of equipment may or may not be used at an amateur station, other than equipment authorization information in the OET database.
Whether an amateur radio operator builds equipment, modifies equipment, or uses equipment from another service is not of concern to the Commission as long as the emissions from the station comply with the rules.
Review the technical information available on the equipment, determine the amateur rules that apply to the frequencies the transmitter transmits on, and the other applicable rules such as the secondary status, etc., and make sure that if you use equipment, you can operate them in compliance with the rules.
Section 97.103(a) and Section 97.107(a) must be complied with, as well as Section 97.119-station identification.
Obviously you would have to ensure that use of the equipment would not cause interference to other authorized users of the frequencies."
Interference with active cruise system
I'm a newb here, just curious if any of the active cruise systems that use K band radar interfere with traffic radar? From a quick internet search it appears that at least a couple of the systems are right smack in the middle of the police band.
e.g.
Audi lane assist 24.160ghz +-20MHz
Mercedes 24.200ghz +-20MHz
Any thoughts?
I'm a newb here, just curious if any of the active cruise systems that use K band radar interfere with traffic radar? From a quick internet search it appears that at least a couple of the systems are right smack in the middle of the police band.
e.g.
Audi lane assist 24.160ghz +-20MHz
Mercedes 24.200ghz +-20MHz
Any thoughts?
32oz
Member
What happens the day your "entertainment" causes a wreck and kills someone and you're charged with manslaughter or even murder? Yeah have fun with that...
I'm hearing that an FCC License must be used to transmit a radar, but my family has several of them, and we don't have any FCC Licenses for them...
They're all mounted to a vehicle.
Some John Deere equipment uses ground speed radar for the speedometer. Same band as the police radar, and my detector goes off just the same for a tractor as it does for a police car.
They're all mounted to a vehicle.
Some John Deere equipment uses ground speed radar for the speedometer. Same band as the police radar, and my detector goes off just the same for a tractor as it does for a police car.
- Joined
- Aug 17, 2010
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- 1,373
i can tell you for a fact that if a cop pulled you over around here and found you setup with radar you would be arrested for impersonating an officer. sure you might win it in court, but you would be arrested. and if you do win it, you better pray that officer does not see you again because he will find a reason to ticket/arrest you again.
we used to have one cop that was a real butt head. he pulled over an out of town marked car and warned him about running radar in HIS town. this same cop would write tickets to marked units for breaking any traffic laws. he got paid back when he would need backup, suddenly not one single officer on the force would answer the radio, even for dispatch.
we used to have one cop that was a real butt head. he pulled over an out of town marked car and warned him about running radar in HIS town. this same cop would write tickets to marked units for breaking any traffic laws. he got paid back when he would need backup, suddenly not one single officer on the force would answer the radio, even for dispatch.
Yeah, I'm still unclear on how major vehicle manufactures can mass produce vehicles with built in features that use radar on that frequency for their active cruise systems. I wrote a letter to valentine1 and they responded that it's become an industry wide problem with false alarms.
Is there some FCC exemption for lower powered devices in that range? Are they so low powered that they won't interfere with police systems?
I can't imagine companies like Mercedes and Audi would be breaking the law or causing customers to break the law and opening themselves up to that sort of liability.
Is there some FCC exemption for lower powered devices in that range? Are they so low powered that they won't interfere with police systems?
I can't imagine companies like Mercedes and Audi would be breaking the law or causing customers to break the law and opening themselves up to that sort of liability.
Rules and Regulations
The relevant part for the car on K band is 47CFR15.252. It is an unlicensed intentional radiator.
Operations of the X band devices are governed by 47CFR15.245. Generally, these devices are intended for "intentional radiators used as field disturbance sensors, excluding perimeter protection systems." However, there is a clause in (b)(1)(iii) regarding operations from a vehicle. It can not be continuous, but it can be used for "limited duration" such as a putting a vehicle in reverse or while running a turn signal.
HTH...
The relevant part for the car on K band is 47CFR15.252. It is an unlicensed intentional radiator.
Operations of the X band devices are governed by 47CFR15.245. Generally, these devices are intended for "intentional radiators used as field disturbance sensors, excluding perimeter protection systems." However, there is a clause in (b)(1)(iii) regarding operations from a vehicle. It can not be continuous, but it can be used for "limited duration" such as a putting a vehicle in reverse or while running a turn signal.
HTH...
goldwingman
Newbie
Radar Gun
G,Day mate im not sure about over there but here in OZ a raider detector is against the LAW,S any thing they invent to save you money from Police or Govemment is against the Law,s of the land the fun Police do not have a sence of humour no more toy,s
G,Day mate im not sure about over there but here in OZ a raider detector is against the LAW,S any thing they invent to save you money from Police or Govemment is against the Law,s of the land the fun Police do not have a sence of humour no more toy,s
K4DHR
Member
I've had radar units for the past 11 years or so. I've gotten a couple of funny looks from LEOs, but only asked about it once, and it was out of pure curiosity. I have a Kustom HAWK sitting on the shelf in my garage right now, I haven't brought it out in a while, but it can be fun to tinker with every once in a while.
In truth, enforcement of the FCC rules is outside the jurisdiction of local law enforcement and while a "motivated" officer could make a stink about it and report you, they have no way of knowing if you are licensed or not. In the one instance where I was asked about it, I simply replied that I was a ham and just liked to tinker with them, that seemed to be enough for the officer at the time.
In truth, enforcement of the FCC rules is outside the jurisdiction of local law enforcement and while a "motivated" officer could make a stink about it and report you, they have no way of knowing if you are licensed or not. In the one instance where I was asked about it, I simply replied that I was a ham and just liked to tinker with them, that seemed to be enough for the officer at the time.
thats the doppler audio
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