networks to minimize the jamming signal the output of the coupler 157 is routed to a preselect filter 155 the resulting filtered output is correlated by block 153 and is routed via an rf connector to weighting network 151 a weighted control signal is then routed from the weighting network 141 to summer 133 a portion of the interferer reference signal 126 is routed to a photodiode detector 149 and then a preselect filter 151 the resulting filtered output is correlated by block 153 as discussed above the radio also includes a t r control output that is coupled to a control interface 161 the control interface 161 generates outputs that are coupled to the preselect filter 155 and the t r bypass switch 159 in general the adaptive control loop amplitude and phase control inputs are supplied through correlation of the interferer signal sample with a sample of the summed weighted interferer and coupled interferer signals at the transceiver input both the interferer sample signal and the cancelled interferer plus desired receive signal are converted to rf using photodiodes and correlated using an rf correlator any resultant interferer signal present at the transceiver input causes a correlator output which is then used to control both amplitude and phase of the weighting network the loop controls both amplitude and phase for zero correlator output indicating a.