just early i went by a speed signe and it said k bad 24.163 12.155 it was jupin and then the rain got faster the k bad started going to full alert and the it displayed 47.250
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just early i went by a speed signe and it said k bad 24.163 12.155 it was jupin and then the rain got faster the k bad started going to full alert and the it displayed 47.250
Actually this is cool as $h!t. Sounds like your X50 was alerting to every frequency which it detected due to the rain. This must have been something similar to multi-path distortion which is encountered with car stereos. I think that you encountered the worst "real world" test scenario probably which all RD engineers have never even thought of. Cool. 8)Quote:
Originally Posted by v1dreamer
so i mean is my rd still is normal right its not brokenQuote:
Originally Posted by MEM-TEK
No, I don't think that it is broken at all. I just think that you have discovered something really cool as far as heavy rain is concerned with creating false harmonics due to multi-path distortion due to the rain drops. I definitely am going to have to have some fun sometime soon by trying to duplicate your results using my X or K band transmitters, my GF showering my car with large rain drops using a garden hose, and me trying to pay attention to either my STi or 9500i displays while my GF stands naked holding the garden hose sprayer!Quote:
Originally Posted by v1dreamer
What do you all think? Will I accidentally be distracted from recording accurate test results? I don't care -- it will be fun now that the weather is warmer!
oh good to hear yea i think you would be distracted lolQuote:
Originally Posted by MEM-TEK
one more question this speed signt that i come across almost every day my x50 sometimes alert me to it and it sometimes doesnt do you know why
Speed sign frequencies can drift all over the place due to temperature, humidity, circuit corrosion, et cetera, since these devices are exposed to the elements rather than being installed in a protected environment such as inside a police cruiser. So, it is possible that one day the sign will be transmitting within the allocated bandwidth for K band, for example, yet on a different day with different weather conditions the speed sign could be transmitting on a different frequency which falls just outside of the allocated K band bandwidth.Quote:
Originally Posted by v1dreamer
In other words, speed signs tend to be rather crude regarding their overall operational accuracy.
With the jumpiness in frequencies observed in the speed sign can it be attributed to the rain screwing up the electronics in the sign or the rain messing with the path of radar between the sign and the RD? We know lidar use is more compromised in adverse weather than radar, but would something like this show how radar use in rain may cause incorrect readings on LEO equipment?
Can the 8500 actually alert and display 12 and 47 Ghz frequencies? I didn't think so.
Mind if I come and witness this testing.... :wink:Quote:
Originally Posted by MEM-TEK
Just make sure you videotape it. 8)