Patent ID: 8520722

Claim:
A method of adding two way telemetry communication between a modem and a transceiver in a satellite communication system, where the modem and transceiver are connected via a single IF receive link, where such two way telemetry communication does not initially exist, the method comprising the steps of: upgrading the transceiver such that the transceiver is connected to the IF receive link via a transceiver interface; wherein the transceiver interface is configured to communicate telemetry information by adding a telemetry signal to the IF receive link as a non-multiplexed digital DC signal and extracting a command signal from the IF receive link; wherein the telemetry signal and the command signal do not interfere with an IF signal on the IF receive link; wherein the command signal is extracted by way of a first IF choke; and upgrading the modem such that the modem is connected to the IF receive link via a modem interface; wherein the modem interface is configured to communicate the telemetry information by adding the command signal to the IF receive link as a non-multiplexed digital DC signal and extracting the telemetry signal from the IF receive link; wherein the telemetry signal is extracted by the way of a second IF choke.