Methods for selecting antennas to avoid signal bus interference

A method of operating an electronic device that has at least first and second antennas and an input-output data port having a connector that is adapted to receive a mating external connector, comprising:

• in a first mode of operation, using at least the second antenna to receive radio-frequency signals;
• in a second mode of operation, using only the first antenna to receive radio-frequency signals;
• and
• switching from the first mode of operation to the second mode of operation in response to detection of use of the input-output port to transmit data.

An electronic device, comprising:

• first and second antennas;
• an input-output data port having a connector that is configured to receive a mating external connector;
• and
• radio-frequency transceiver and control circuitry that is coupled to the first and second antennas, wherein the radio-frequency transceiver and control circuitry includes input-output circuitry that is operable to transmit data signals through the input-output data port, wherein the radio-frequency transceiver and control circuitry monitors the input-output data port for activity, and wherein the radio-frequency transceiver and control circuitry is configured to inhibit use of the second antenna in receiving radio-frequency signals by monitoring an amount of data that is being transmitted through the input-output data port.