New Ka band false alerts oddities... Across more than one brand

Vancity23

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Great, would be curious to see the frequencies.
 
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DC Fluid

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When I get too close to my R7s with the Pixel 4XL that uses radar to detect gestures, the detector will Ka false.
This happens when trying to take pictures or videos of the display screen too close.
Rear antenna picks up the radar and ghosts into the 34.7 range.
 

DrHow

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When I get too close to my R7s with the Pixel 4XL that uses radar to detect gestures, the detector will Ka false.
This happens when trying to take pictures or videos of the display screen too close.
Rear antenna picks up the radar and ghosts into the 34.7 range.
That is cool observation. Radar inside a Pixel? Power of a hacked Pixel OS, and radar transmitter. Uhmmm... too bad can’t amplify it, and create “programmable IOT cell phone jammer”. :)
 
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RadarScout

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That is cool observation. Radar inside a Pixel? Power of a hacked Pixel OS, and radar transmitter. Uhmmm... too bad can’t amplify it, and create “programmable IOT cell phone jammer”. :)
This reminds me, didn't someone report a while back they thought their dashcam was causing falses on their detector? I can't remember if @Vortex was part of that conversation.
 

DrHow

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This reminds me, didn't someone report a while back they thought their dashcam was causing falses on their detector? I can't remember if @Vortex was part of that conversation.
Yes, I have seen wifi on M1, and vehicle hot spot Wifi (2.4) Falsing on K band too. Escorts seem immune (better be since they sell the M1 right next to their devices), so to G2 (so far). Have R7 and R3 appear to false occasional on the Wifi (K band).. Have not heard these causing issue on Ka? Don’t remember that.
 

DC Fluid

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This reminds me, didn't someone report a while back they thought their dashcam was causing falses on their detector? I can't remember if @Vortex was part of that conversation.
I have a new action Cam that I tried using videoing my detectors.
With 2 R7s mounted the dash cam was unusable near them.
Turns out all cams were unusable.
R7s make each other false on Ka.
Another 2 RDs story of why not to.
 

poolmon

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I just ran into an interesting Ka "false" alert.
It was a Ka door system at a hospital emergency wing in Frederick, MD. It was registering up to 7 separate signals in the 35.5 range as it scrolled through the various individual frequencies so fast that I could not capture them.

EDIT: I wonder how Theia could address such a situation?
 
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Token

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Are we thinking Ka is now being used for BSM?

Phil

I receive fairly regular Ka falses, in several segments. But so far I have been able to trace every false down to something in a fixed location. Satellite uplinks, rural area terrestrial net links, facility perimeter protection systems, etc.

I don't think I have ever gotten a false that I thought might be from some kind of BSM or anything like that from a mobile source.

T!
 

thebravo

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Yes, I have seen wifi on M1, and vehicle hot spot Wifi (2.4) Falsing on K band too. Escorts seem immune (better be since they sell the M1 right next to their devices), so to G2 (so far). Have R7 and R3 appear to false occasional on the Wifi (K band).. Have not heard these causing issue on Ka? Don’t remember that.

The only KA falses I have had thus far around me are satellite dishes and leaky detectors generally around 33.7-33.8 range, some of them I can pick up stupid far... I had almost 1/4 mile detection coming on from a leaky detector on a backroad too... that said it's still pretty rare to have a KA false. I think I also got a KA false at work outside of my usual segments (2,4,5,6,8) when I was running wide, but it's right against an airport runway and control tower so lots of signals being transmitted and received that could have harmonics in that range.
 

PHILBERT

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I receive fairly regular Ka falses, in several segments. But so far I have been able to trace every false down to something in a fixed location. Satellite uplinks, rural area terrestrial net links, facility perimeter protection systems, etc.

I don't think I have ever gotten a false that I thought might be from some kind of BSM or anything like that from a mobile source.

T!
Thanks for the response. I too have seen them, but in my case I was on a rural highway most of the time. Very few houses anywhere near parts of the Taconic State Parkway.

Phil
 

OldtimeRadar

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My technical guess it is a combination of ultra-sensitive RD's that we have now picking up harmonics
"noise" from all kinds of electronic circuits. With a sensitive enough detector, everything looks like transmitter. This is one of the big reasons the FCC requires tests on all kinds of electronics that we don't normally think of as "transmitters" and sticks a label on them. Everything leaks Rf noise.
 

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