Mobile wireless communications device using wired headset as an antenna and related methods

A mobile wireless communications device comprising:

• a housing;
• circuitry carried by said housing and comprising
• a wireless cellular transceiver,
• a wireless broadcast receiver,
• audio circuitry coupled to said wireless transceiver and said wireless broadcast receiver,
• a wired headset jack, and
• a reference voltage device line, and at least one wired headset device line coupled between said audio circuitry and said wired headset jack;
• and
• a wired headset to be coupled to said wired headset jack and comprising a plurality of contacts, and a plurality of headset lines respectively coupled to said plurality of contacts, said plurality of headset lines comprising an unshielded reference voltage headset line;
• said reference voltage device line also coupled to said wireless broadcast receiver so that said unshielded reference voltage headset line serves as an antenna for said wireless broadcast receiver.

A method for making a mobile wireless communications device comprising:

• providing a housing;
• coupling circuitry to be carried by the housing and comprising
• a wireless transceiver,
• a wireless broadcast receiver,
• audio circuitry coupled to the wireless transceiver and the wireless broadcast receiver,
• a wired headset jack, and
• a reference voltage device line, and at least one wired headset device line coupled between the audio circuitry and the wired headset jack;
• and
• coupling the reference voltage device line to the wireless broadcast receiver so that a corresponding unshielded reference voltage headset line of a wired headset serves as an antenna for the wireless broadcast receiver.