Check your battery. The battery is used to filter noise from the electrical system. A weak battery will allow the noise level in the electrical system to increase and the weakest components show up first. Don't just look at it, have it tested and if it is over three years old or a Honda battery I would replace it. Replace with one of the highest CCA you can get as the Odyssey places a heavy load on the battery. Also if you make a lot of short trips the battery may not be getting charged.
Just because the battery is only 1.5 years old doesn't make it good. By the same note I wouldn't trust the voltage readings on the detector. Use a good voltmeter. One thing I would try is connecting the detector to a portable battery and see if you still get false indications. The detector could be just picking up stray radiations.
A fully charged 12 volt automotive battery should read between 2.1 and 2.15 volts per cell. A 12 volt automotive battery has 6 cells so full voltage should be 12.6-12.9 volts. IF YOU ONLY read 12 to 12.1 volts then your battery is not fully charged. BUT when reading the battery voltage you need to know that the meter is calibrated (reading correctly). From your post you are only .5-.9 volts short of full charge, BUT from the running voltage it sounds like your system is putting out voltage. Still sound like you have a potential battery issue (in addition to others, lose drive belt, bad regulator in the alternator, etc....), see if you can get it checked with another meter (or two). Lots of luck, Russ.
Damn annoying heh?? I have a escort 8500 x50 blue model and it has those laser detection thingie on, and no matter how fast I cruise down, whenever I acclerate, the laser detection will go off. The best solution was to just turn the laser detection off. And luckily, my V1 doesn't do this in the ody like the escort