RF can cause problems

[yrralguthrie]

You need to read this all the way through; it sort of rambles. While using my laptop while sitting feet up in a recliner, it went bonkers. The screen started blinking, and the mouse pointer froze. I just happened to notice my pickup key fob was lying on the computer just below the keyboard. I took it off the computer, and all the problems went away. Evidently the small radio frequency from the keyfob was close enough to the Bluetooth or Wi-Fi or some other device that it interfered. Now, for the reason for putting this here. I've also had to reset my center display a couple of times. This was while the key fob was on my belt very close to my cell phone, which was cordless connected to the display. I strongly think the keyfob if it is kept close to the phone can cause some of the problems reported with the center display.

 

[RAM Patriot]

Interesting observation—and it actually makes a lot of sense from an RF interference standpoint. Key fobs operate around 315 MHz or 433 MHz (depending on the region and vehicle), and while that’s quite a bit lower than Bluetooth or Wi-Fi frequencies (2.4 GHz), it’s still possible for poorly shielded or sensitive electronics to experience interference, especially when devices are in close proximity.

The situation with the laptop could’ve triggered some kind of temporary EMI (electromagnetic interference), especially if the Bluetooth module was actively scanning. As for the center display, having the key fob close to a phone that’s connected via Bluetooth or Wi-Fi could create unpredictable behavior, depending on how the vehicle’s head unit handles wireless signals and handshake protocols.

Definitely worth investigating further—could explain some of the random display glitches others have reported. Thanks for posting this!

 

[bigdodge]

faraday bag!

 

[RiffWrath]

When i drive through a particular set of traffic lights my radio cuts in and out. Every time.