Patent ID: 7627301

Claim:
An antenna input channel switching method for spatial diversity reception, on the basis of a receiving device for use in a telemetry monitoring or testing system including at least two antennae, the method comprising steps: A. a main control circuit of the receiving device randomly selects an input signal coming from one of the at least two antennae and sends that signal to a receiving channel; B. the main control circuit waits and selects a predetermined occasion to perform the following steps, wherein the predetermined occasion is selected from a group comprising at least one of an interframe space between two data frames being transferred and a time at which a transfer of one data frame completes; C. the main control circuit records the RSSI value of the current signal output by a received signal strength indication unit provided within the channel as an original RSSI value; D. the main control circuit selects an input signal from another antenna as a currently selected antenna, and sends that signal to the receiving channel; and E. the main control circuit reads the current RSSI value output by the received signal strength indication unit, and then determines whether the signal to be input into the channel is to come right along from the currently selected antenna, or is to be switched back to the previously selected antenna, wherein the steps B-E are performed repeatedly.