Combined global positioning system receiver and radio

A system in which a plurality of portable GPS/radio units wirelessly communicate with one another, said system comprising:

• a first portable GPS/radio unit having a GPS receiver for receiving satellite signals from a plurality of satellites, a processor coupled with said GPS receiver for calculating the location of said first unit as a function of the received satellite signals, a radio transmitter coupled with the processor for transmitting a radio signal including information indicative of the location of said first unit, a radio receiver, a microphone, a speaker, and a display;
• and
• a second portable GPS/radio unit having a GPS receiver for receiving satellite signals from a plurality of satellites, a processor coupled with said GPS receiver for calculating the location of said second unit as a function of the received satellite signals, a radio receiver coupled with the processor for receiving said radio signal from said first other portable unit, a display coupled with the processor, a microphone and a speaker for permitting voice communications with the first unit, and a radio transmitter coupled with said processor for transmitting a radio signal including information indicative of the location of the second unit;
• wherein the processor of said second unit, upon receiving said information indicative of the location of said first unit, displays an indication thereof on said display of said second, portable unit, and wherein the processor of said first unit, upon receiving said information indicative of the location of said second unit, displays an indication thereof on said display of said first portable unit.

A method for displaying the location of a first portable GPS/radio unit on a second portable GPS/radio unit, said method comprising:

• receiving a first set of satellite signals from a plurality of satellites at a first portable GPS/radio unit;
• calculating the location of the first unit as a function of the first set of received satellite signals;
• receiving a second set of satellite signals from a plurality of satellites at a second portable GPS/radio unit;
• calculating the location of the second unit as a function of the second set of received satellite signals;
• transmitting the location of the first unit to the second unit over a wireless radio network in association with a voice communication transmitted from the first unit to the second unit;
• and
• displaying the location of the first unit on the second unit.

An electronic system comprising:

• a first, portable electronic device having a processor, a transmitter, and a receiver;
• and
• a second, portable electronic device having a processor, a transmitter, and a receiver, wherein said first portable electronic device determines its location and wirelessly sends a signal indicative of its said location to said second portable electronic device, and wherein said second portable electronic device determines its location and wirelessly sends a signal indicative of its said location to said first portable electronic device;
• wherein said first portable electronic device has a display and said second portable electronic device has a display wherein said display of each device displays information indicative of said determined location of each unit;
• and
• wherein each said portable electronic device has a microphone and a speaker for permitting voice communication between said first and second devices.

GPS/radio unit capable of wirelessly communicating with one or more other such units, wherein each of said other units is adapted to transmit radio signals indicative of that unit's location, said GPS/radio unit comprising:

• a processor;
• a transmitter;
• receiver, wherein said GPS/radio unit determines its location and wirelessly transmits a signal indicative of its said determined location to at least one of said other units, and wherein said GPS/radio unit wirelessly receives a signal, from at least one of said other units, indicative of the location of the unit from which said received signal is transmitted;
• wherein said first portable electronic device has a display and said second portable electronic device has a display wherein said display of each device displays information indicative of said determined location of each unit;
• and
• wherein said portable GPS/radio unit further comprises:
• a microphone;
• and
• a speaker, wherein said GPS/radio unit is adapted for voice communication with one or more of said other such units.