I have a GPS antenna (lozenge shaped ca. 4.5mm x 3.0mm, magnetic, Frequency 1575.42 +/-2MHz, Gain 27dB, Voltage 3~5 vDC, fitted with a coaxial cable (one conductor and shield) terminating in a BNC plug).
I would like to connect this as an external signal source to my phone using the USB plug in the hope of increasing the sensitivity of the device. How should the connection be made? Is a power source required for the ...