That is rather disconcerting about how that one detector has that hand written error message in there. I wouldn't like finding that at all in one I purchased for my own use. Plus it reads like they found a problem with it but couldn't figure out what the actual problem was. Scarey stuff there! Did it get fixed you have to wonder?
You are insane taking those detectors apart and just handling them like that! You're making me cringe just looking at those pictures of you handling those with no protection what so ever.
Obviously you didn't have to buy these or you'd be more worried about ruining them. I hope you did all of this AFTER your testing. Damage from static electricity into sensitive electronic components doesn't always mean something will just not work at all, but it could certainly have an effect on how well it does actually work, easily adding an unseen and negative factor to any potential testing you do after handling these in this way.
You should have those on an anti static pad with a wrist strap on grounding static electricity from your body. I would also be wearing latex gloves if that was my own actual detector just to prevent the acids from my hands corroding everything in there.
$10 for a pad and strap could have saved you possibly a couple thousand dollars in damage there.
I would certainly not encourage anyone to just take their detector apart and handle it in this way. Go to Radio Shack or what ever and at least get an anti static pad and a wrist strap, $10. Like I said, you might not even know you've damaged something right away by not using protection, not working at all is always possible, but usually the problems from this type of damage are not always immediately noticeable.
Originally Posted by
JDS
But I gotta say...those single-horn detectors are supposed to be "bi-directional" to receive signals from the rear, but I wonder how that can be effective, I mean there's NOTHING in those photos that looks like it would pick anything up from behind. They can't be depending entirely on reflections off crap hitting it from in front, can they?
In my primary drive vehicle (a utility van, no rear windows, rear metal "headache rack" wall seperating front from cargo area). I seem to get excellant rear detection with my 9500i. No way anything is coming in directly through the back of my vehicle, so picking up bounce from rear to front seems to work very well. I'm always actually amazed how well I detect from the rear, I have an absolute worst case scenario for it, even worse than a large RV that would never have so much metal blocking the rear.
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