System and method for detecting the connections of two antennae to a radio receiver

A system for detecting whether two antennae are connected to a receiver, comprising:

• a first RF feed from a first antenna;
• a second RF feed from a second antenna;
• a signal generating source in communication with the first RF feed;
• a signal detection circuit in communication with the second RF feed;
• a DC pathway that includes the first and second RF feeds and electrically connects the signal generating source and signal detection circuit;
• a low noise amplifier (LNA) module connected between the first and second antennae and the first and second RF feeds;
• a voltage regulator providing a regulated voltage to the LNA module, wherein the voltage regulator is powered by the signal generating source.

A system for confirming that two antennae are connected to a radio receiver, comprising:

• a radio receiver comprising a signal generating source, a first antenna feed connection port, a second antenna feed connection port, and a signal detection circuit;
• a low noise amplifier (LNA) module comprising a first LNA and a second LNA, wherein the first LNA is in communication with a first antenna and the second LNA is in communication with a second antenna, and wherein outputs of the first and second LNAs are in communication, respectively, with the first antenna feed connection port and the second antenna feed connection port;
• and
• a signal pathway that passes, at least in part, through the LNA module and electrically connects the signal generating source and the signal detection circuit to each other;
• and
• a regulator providing a regulated voltage to the LNA module, the regulator being powered by the signal generating source.

A method of detecting antennae connection, comprising the steps of:

• supplying a detection signal to a first antenna connection port;
• routing said detection signal through a first antenna feed line;
• returning a signal corresponding to said detection signal through a second antenna feed line;
• detecting a presence of said signal corresponding to said detection signal at a second antenna connection port;
• and
• supplying power to a regulator that provides a regulated voltage to a low noise amplifier (LNA) module associated with at least one antenna, the regulator receiving power from said detection signal.