diff --git a/src/algorithms/acquisition/gnuradio_blocks/pcps_acquisition_cc.h b/src/algorithms/acquisition/gnuradio_blocks/pcps_acquisition_cc.h
index 9640e5e3a..d1443d18c 100644
--- a/src/algorithms/acquisition/gnuradio_blocks/pcps_acquisition_cc.h
+++ b/src/algorithms/acquisition/gnuradio_blocks/pcps_acquisition_cc.h
@@ -148,6 +148,12 @@ public:
      {
          gr::thread::scoped_lock lock(d_setlock); // require mutex with work function called by the scheduler
          d_gnss_synchro = p_gnss_synchro;
+         // Dealing with FDMA system
+         if(d_gnss_synchro->System == 'R')
+          {
+            d_freq += 0.5625e6 * GLONASS_PRN[d_gnss_synchro->PRN+1];
+            std::cout << "d_freq " << d_freq << std::endl;
+          }
      }
 
      /*!