diff --git a/src/algorithms/signal_source/adapters/ad9361_fpga_signal_source.cc b/src/algorithms/signal_source/adapters/ad9361_fpga_signal_source.cc
index fffef1468..2be133ced 100644
--- a/src/algorithms/signal_source/adapters/ad9361_fpga_signal_source.cc
+++ b/src/algorithms/signal_source/adapters/ad9361_fpga_signal_source.cc
@@ -287,9 +287,6 @@ Ad9361FpgaSignalSource::Ad9361FpgaSignalSource(ConfigurationInterface *configura
     freq_ = configuration->property(role + ".freq", GPS_L1_FREQ_HZ);
     sample_rate_ = configuration->property(role + ".sampling_frequency", 12500000);
     bandwidth_ = configuration->property(role + ".bandwidth", 12500000);
-    rx1_en_ = configuration->property(role + ".rx1_enable", true);
-    rx2_en_ = configuration->property(role + ".rx2_enable", true);
-    buffer_size_ = configuration->property(role + ".buffer_size", 0xA0000);
     quadrature_ = configuration->property(role + ".quadrature", true);
     rf_dc_ = configuration->property(role + ".rf_dc", true);
     bb_dc_ = configuration->property(role + ".bb_dc", true);
diff --git a/src/algorithms/signal_source/adapters/ad9361_fpga_signal_source.h b/src/algorithms/signal_source/adapters/ad9361_fpga_signal_source.h
index a68a3e6b4..ca41a0fe8 100644
--- a/src/algorithms/signal_source/adapters/ad9361_fpga_signal_source.h
+++ b/src/algorithms/signal_source/adapters/ad9361_fpga_signal_source.h
@@ -83,9 +83,6 @@ private:
     uint64_t freq_;  // frequency of local oscillator
     uint64_t sample_rate_;
     uint64_t bandwidth_;
-    uint64_t buffer_size_;  // reception buffer
-    bool rx1_en_;
-    bool rx2_en_;
     bool quadrature_;
     bool rf_dc_;
     bool bb_dc_;