[Canyonero]

Originally Posted by Biscuit.fr

If I understand all the topic,
If you don’t need the mic and Bluetooth (hand free phone)
Just pulling the fuse will have the same effect!

-you will loose onstar
-you will loose mic and Bluetooth
-you will loose gps

So nav won’t work
Compass neither

But you still got a full PDR
Because camera got its own mic and PDR its own gps

Hi Folks, to clarify, I just want to pull the fuse since I am not concerned about bluetooth or mic.

In this case, the PDR with course map, audio and timer are unaffected. Is that right?

[cdb95z28]

Originally Posted by Canyonero

Hi Folks, to clarify, I just want to pull the fuse since I am not concerned about bluetooth or mic.

In this case, the PDR with course map, audio and timer are unaffected. Is that right?

As mentioned above, PDR has its own mic, which is with the camera, located behind the rear view mirror. It also has its own GPS, located in the dash near the base of the windshield. And finally, PDR has its own module, located in the passenger seat floor area, that uses the above inputs to create the data which is written onto the the PDR's SD card.

[Canyonero]

Originally Posted by cdb95z28

As mentioned above, PDR has its own mic, which is with the camera, located behind the rear view mirror. It also has its own GPS, located in the dash near the base of the windshield. And finally, PDR has its own module, located in the passenger seat floor area, that uses the above inputs to create the data which is written onto the the PDR's SD card.

Thanks! I'll try it out this week

[Annihilate]

Originally Posted by Curr

Stop the presses, copper tape probably not a good solution... read on.



Ok, so I just spoke to an expert, and if you don't want to believe me, that's cool, but I know what I don't know, but I do know who to ask. This guy is "the guy" in our division (very large company, aerospace and defense sector). Patent holder, innovator in inertial guidance and telemetrics, and currently working on a lot of next-generation stuff that the "prime" defense contracting companies are very interested in. He's the real deal. Yes, I'm being purposely vague.

That said, the trace from the signal source, to the end of the PCB still counts as an antenna, and will absolutely radiate signal even "correctly terminated" (which we are just assuming it's 50 ohms...) which is probably why gatormaro saw limited connections occasionally.

He said that copper tape / shielding may not be a great idea due to it could actually increase the radiation pattern (my words mangling his explanation) and might not attenuate it at all. He explained to me some examples of antennas he'd built using layering of copper which helped propagate the waves instead of attenuate them.

Eccosorb, an very common energy isolation barrier, is perfect for this type of thing.

He also said, without looking at the board, in general, a good idea could be just AC coupling the signal to ground at it's origin, and at the edge of the pcb with something like 100pF to 1000pF cap.

So once I pull this thing and see what kind of space I have to play with, I'll have a better idea of what I'm going to try. But we have a tons of Eccosorb at work that I can probably snag some to try out.

Well where is the update!