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  #1  
Old April 11th, 2013
ESMD ESMD is offline
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Default Farm equipment picked up on detector

I've been getting K-band alerts (24.141ghz) around my area any time I pass by one of the local farmers running their equipment; sprayer, tractor, combine, etc. It doesn't matter if they are simply driving their apparatus down the road or actually in the field working. I don't think it is very powerful because I only get the alert when I'm right up on them. I know they have all kinds of accessories on their equipment for GPS, sensors for feed rates, etc. But what could be setting off the detector?
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Old April 11th, 2013
laxman420 laxman420 is offline
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I get them too when im in rural areas. Dunno what causes the falses though.

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Old April 11th, 2013
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buckdharma buckdharma is offline
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Default Crash Avoidance

More than likely it is accident avoidance radar. It alerts them before striking something or someone. This technology is being used more and more. You may run into it on School Busses, Dump Trucks and other equipment.
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Old April 12th, 2013
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buckdharma buckdharma is offline
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Applications [-]

•Digital Radio Communication Systems (21.2–23.6 GHz and 24.5–26.5 GHz)
•Any narrow band application within 21 –26 GHz
•24.1 GHz collision avoidance
•Front-end gain stage

24.125 GHz was chosen as the microwave oscillator for several reasons:
•Transceivers based on this frequency are used in microwave door openers and are available in quantity at a reasonable price.
•24.125 GHz transceivers are already qualified to, and comply with, FCC regulations part 15, subpart J. In other words, operators are not required to obtain a separate license for each unit.
•The frequency simplifies fabricating a narrow-beam antenna, which reduces errors caused by beam dispersion. A frequency of 10.525 GHz could also have been used. Although it is less expensive, it must be physically larger to achieve the same performance.
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Last edited by buckdharma; April 12th, 2013 at 01:37 AM.
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Old April 21st, 2013
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Krazy-K Krazy-K is offline
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Maybe farmers using Cobras from seed mill desk sales for those days they have go on the road? John Deer's run fast!
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Old April 27th, 2013
mountainbigbull mountainbigbull is offline
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Challengers tractors used a radar gun pointed at the ground to monitor ground speed. It's a way to check wheel slippage. It is used on just about all the Cat Challengers, it was an option but a very popular one. I'm not sure on other makes and models. GPS is taking over for farming so radar use may be getting old technology and redundant to GPS. Cat H all wheel drive H series grader also used a radar gun to monitor wheel slippages as well. The newest M series doesn't. So yes if your see some of this stuff out there it will for sure set your detector off.
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Old April 27th, 2013
mountainbigbull mountainbigbull is offline
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Cat also does have collision avoidance systems but is used in larger mining applications like haul trucks. So if you are going by a mining operations it may have some readings of those systems.
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Old April 27th, 2013
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Wow! Interesting. Have relatives in farming and GPS is the way to go but didn't know about radar. Learn something everyday..............
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Old May 16th, 2013
pullmanwa pullmanwa is offline
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Quote:
Originally Posted by ESMD View Post
I've been getting K-band alerts (24.141ghz) around my area any time I pass by one of the local farmers running their equipment; sprayer, tractor, combine, etc. It doesn't matter if they are simply driving their apparatus down the road or actually in the field working. I don't think it is very powerful because I only get the alert when I'm right up on them. I know they have all kinds of accessories on their equipment for GPS, sensors for feed rates, etc. But what could be setting off the detector?
Just in case you're in the Palouse in the future, our Combines out here use K band radar for their speed control. You may get a hit on your Redline with no obvious police in sight but see only a Combine off to the side. It's happened a few time to me. A few new Combines use GPS, but they're pricey. I checked and there is a big box on the front with a K band Tx Rx package.

Just a heads up.
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Old May 20th, 2013
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Smile K Band Everywhere!

Just got in from an all day trip through farm land and had four K band encounters from farm tractors and several other bogies. Three tractors were along side the roadway (in the field) and generally picked up at 200 yards away with super quick ramp-up. The last was a huge John Deere with seeder in tow on the highway. Alert from 300 yards and full blown alert 100 yards after that. My RL was jumping all over the dash! After passing the tractor the RL went silent and on my way. Wow! Never had this before. Later on three Ka moving I/O encounters with enforcement. Redline worked like magic!

Cheers!
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