Is it dangerous to use cellphones in airplanes can it disturb electronics?

Question

Is it dangerous to use cellphones in airplanes can it disturb electronics?

Answer

They have the POTENTIAL to interfere with navigationcommunication systems as they operate on a close frequencywavelength. Once, my captain could clearly hear a woman in back talking to a friend over his headset! In fact, the womans name was used in the conversation and he had to ask quotBarbaraquot to please discontinue use of her phone for departure over the PA.brbrPhones transmitting near the Mhz range were found to have caused these incident on aircraftbrbr Slaved Compass froze or overshot actual magnetic bearingbr Needles on instruments engineaircraft amp nav appeared unstablebr Digital VOR bearing display showed errors of degreesbr VOR toFrom indicator reading was reversedbr. VOR amp ILS course indicator errors with amp without a failure flagbr Sensitivity of the localizer was reducedbr Background noise in the audio systembr False warnings of unsafe conditions such as smoke alarms in the baggage compartments