Patent ID: 7889123

Claim:
A wireless communications device, comprising: a GPS receiver adapted to receive GPS in-band radio-frequency (RF) signals in a GPS band; transmit circuitry onboard the wireless communications device adapted to transmit a radio-frequency (RF) signal in a wireless communications band that is different from the GPS band, wherein transmission of the RF signal causes a GPS in-band signal to be generated and received by the GPS receiver; and a control system onboard the wireless communications device adapted to test the GPS receiver by being adapted to: instruct the transmit circuitry to transmit the RF signal; determine a transmission noise level in the GPS receiver caused by receipt of the GPS in-band signal from the RF signal when the transmit circuitry is transmitting; and compare a nominal noise level representing a noise level in the GPS receiver based on the transmit circuitry not transmitting to the transmission noise level.