diff --git a/src/algorithms/acquisition/adapters/galileo_e1_pcps_ambiguous_acquisition_fpga.cc b/src/algorithms/acquisition/adapters/galileo_e1_pcps_ambiguous_acquisition_fpga.cc
index e153aff18..e7a45bfe7 100644
--- a/src/algorithms/acquisition/adapters/galileo_e1_pcps_ambiguous_acquisition_fpga.cc
+++ b/src/algorithms/acquisition/adapters/galileo_e1_pcps_ambiguous_acquisition_fpga.cc
@@ -180,14 +180,14 @@ GalileoE1PcpsAmbiguousAcquisitionFpga::GalileoE1PcpsAmbiguousAcquisitionFpga(
     acq_parameters.make_2_steps = configuration_->property(role + ".make_two_steps", false);
     acq_parameters.max_num_acqs = configuration_->property(role + ".max_num_acqs", 2);
     // reference for the FPGA FFT-IFFT attenuation factor
-    acq_parameters.total_block_exp = configuration_->property(role + ".total_block_exp", 12);
+    acq_parameters.total_block_exp = configuration_->property(role + ".total_block_exp", 13);
 
     acquisition_fpga_ = pcps_make_acquisition_fpga(acq_parameters);
 
     channel_ = 0;
     doppler_step_ = 0;
     gnss_synchro_ = nullptr;
-    
+
     // temporary buffers that we can delete
     delete[] code;
     delete fft_if;
diff --git a/src/algorithms/acquisition/gnuradio_blocks/pcps_acquisition_fpga.cc b/src/algorithms/acquisition/gnuradio_blocks/pcps_acquisition_fpga.cc
index 421652353..99de2d8ed 100644
--- a/src/algorithms/acquisition/gnuradio_blocks/pcps_acquisition_fpga.cc
+++ b/src/algorithms/acquisition/gnuradio_blocks/pcps_acquisition_fpga.cc
@@ -302,6 +302,7 @@ void pcps_acquisition_fpga::set_active(bool active)
                                 }
                             num_second_acq = num_second_acq + 1;
                         }
+                    acquisition_fpga->close_device();
                     if (d_test_statistics <= d_threshold)
                         {
                             d_state = 0;
diff --git a/src/algorithms/acquisition/libs/fpga_acquisition.cc b/src/algorithms/acquisition/libs/fpga_acquisition.cc
index ed2096d70..822e02d3c 100644
--- a/src/algorithms/acquisition/libs/fpga_acquisition.cc
+++ b/src/algorithms/acquisition/libs/fpga_acquisition.cc
@@ -177,7 +177,7 @@ void Fpga_Acquisition::run_acquisition(void)
 {
     // enable interrupts
     int32_t reenable = 1;
-    int32_t disable_int = 0;
+    //int32_t disable_int = 0;
     ssize_t nbytes = TEMP_FAILURE_RETRY(write(d_fd, reinterpret_cast<void *>(&reenable), sizeof(int32_t)));
     if (nbytes != sizeof(int32_t))
         {
@@ -197,11 +197,11 @@ void Fpga_Acquisition::run_acquisition(void)
             std::cout << "acquisition module Interrupt number " << irq_count << std::endl;
         }
 
-    nbytes = TEMP_FAILURE_RETRY(write(d_fd, reinterpret_cast<void *>(&disable_int), sizeof(int32_t)));
-    if (nbytes != sizeof(int32_t))
-        {
-            std::cerr << "Error disabling interruptions in the FPGA." << std::endl;
-        }
+    //    nbytes = TEMP_FAILURE_RETRY(write(d_fd, reinterpret_cast<void *>(&disable_int), sizeof(int32_t)));
+    //    if (nbytes != sizeof(int32_t))
+    //        {
+    //            std::cerr << "Error disabling interruptions in the FPGA." << std::endl;
+    //        }
 }