Apple Car Play Disconnects at Same Spots on Highway

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SUMMARY

The discussion centers on persistent disconnections of Apple CarPlay while driving on specific highway sections, attributed to potential interference from underground power cables or other environmental factors. Users noted that similar issues occur with FM radio, suggesting a correlation between signal strength and location. The conversation highlights the dual connection method of Apple CarPlay, utilizing Bluetooth for initial pairing and WiFi for data streaming. Participants recommend using spectrum analyzer apps to diagnose signal strength in problematic areas.

PREREQUISITES
  • Understanding of Apple CarPlay functionality and connection methods (Bluetooth and WiFi)
  • Familiarity with wireless signal interference concepts
  • Knowledge of spectrum analyzer apps for measuring signal strength
  • Basic troubleshooting skills for wireless connectivity issues
NEXT STEPS
  • Research how to use spectrum analyzer apps to diagnose wireless signal issues
  • Investigate the impact of underground power cables on wireless signals
  • Explore the differences between Bluetooth and WiFi connectivity in automotive applications
  • Learn about common causes of wireless interference in vehicles
USEFUL FOR

iPhone users experiencing connectivity issues with Apple CarPlay, automotive engineers, and anyone interested in understanding wireless signal interference in vehicles.

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I've been connecting my iphone to Apple Car Play via WiFi or Bluetooth for about 6 months and there are a few sections of highway where it disconnects every single time. I don't see any large comms towers anywhere. What do you think is going on?
 
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Beyond the 'Missing Mast' issue, or a mast blocked on that singular vector' by a building, silo, ridge or seasonal foliage,, if signal strength is already low, you may be getting 'ghosting' due multiple paths. Would your receiver handle such well ??
 
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Greg Bernhardt said:
via WiFi or Bluetooth
Sorry, what does that mean? You are making a wireless connection between your iPhone and your car so you can play music on your car stereo? And you can choose either WiFi or Bluetooth to make that wireless connection?

What kind of car is it? Are you making any other wireless connections between your car and other devices? Or between your iPhone and other devices (like Bluetooth earbuds)? If so, do those other connections ever drop out? Do you ever have problems with dropped calls on your iPhone in those areas?

There are "spectrum analyzer" apps that you can get for your phone that will show you signal strengths, so you could download one of those and have a passenger watch the display as you drive around...

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berkeman said:
Sorry, what does that mean? You are making a wireless connection between your iPhone and your car so you can play music on your car stereo? And you can choose either WiFi or Bluetooth to make that wireless connection?
Correct. Sounds like Apple CarPlay uses bluetooth to connect and then wifi for the data steaming.
https://robots.net/tech/how-does-wireless-carplay-work/
berkeman said:
What kind of car is it?
2024 CRV
berkeman said:
Are you making any other wireless connections between your car and other devices?
No
 

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