Which combination of electronic devices is prohibited onboard at any time due to interference with navigational and/or communication equipment?

Which combination of electronic devices is prohibited onboard at any time due to interference with navigational and/or communication equipment?

• A. Radio transmitters
• B. Radio-controlled toys
• C. Printers
• D. Radio transmitters, radio-controlled toys, printers, and laser pointers

Answer: (D)

Any device that can emit signals or otherwise affect the cockpit’s ability to operate safely should not be on board. Radio transmitters are banned because they actively send RF energy that can interfere with navigation and communications gear. Radio-controlled toys also emit RF, so they pose the same risk even when operated nearby. Printers can be wireless, producing RF with Wi‑Fi or Bluetooth that could interfere with avionics, so they’re restricted as well. Laser pointers are prohibited because their beams can distract or temporarily impair the pilots, affecting cockpit operations. Because all of these situations can compromise navigation, communication, or cockpit safety, the combination of these devices is not allowed on board at any time.

Any device that can emit signals or otherwise affect the cockpit’s ability to operate safely should not be on board. Radio transmitters are banned because they actively send RF energy that can interfere with navigation and communications gear. Radio-controlled toys also emit RF, so they pose the same risk even when operated nearby. Printers can be wireless, producing RF with Wi‑Fi or Bluetooth that could interfere with avionics, so they’re restricted as well. Laser pointers are prohibited because their beams can distract or temporarily impair the pilots, affecting cockpit operations. Because all of these situations can compromise navigation, communication, or cockpit safety, the combination of these devices is not allowed on board at any time.