diff --git a/src/algorithms/observables/adapters/hybrid_observables.cc b/src/algorithms/observables/adapters/hybrid_observables.cc
index e502fa12c..a07882481 100644
--- a/src/algorithms/observables/adapters/hybrid_observables.cc
+++ b/src/algorithms/observables/adapters/hybrid_observables.cc
@@ -40,6 +40,7 @@ HybridObservables::HybridObservables(const ConfigurationInterface* configuration
     conf.nchannels_out = out_streams_;
     conf.observable_interval_ms = configuration->property("GNSS-SDR.observable_interval_ms", conf.observable_interval_ms);
     conf.enable_carrier_smoothing = configuration->property(role + ".enable_carrier_smoothing", conf.enable_carrier_smoothing);
+    conf.always_output_gs = configuration->property("PVT.an_output_enabled", conf.always_output_gs) || configuration->property(role + ".always_output_gs", conf.always_output_gs);
 
     if (FLAGS_carrier_smoothing_factor == DEFAULT_CARRIER_SMOOTHING_FACTOR)
         {
diff --git a/src/algorithms/observables/gnuradio_blocks/hybrid_observables_gs.cc b/src/algorithms/observables/gnuradio_blocks/hybrid_observables_gs.cc
index ae79807fd..3dada88c4 100644
--- a/src/algorithms/observables/gnuradio_blocks/hybrid_observables_gs.cc
+++ b/src/algorithms/observables/gnuradio_blocks/hybrid_observables_gs.cc
@@ -61,6 +61,7 @@ hybrid_observables_gs::hybrid_observables_gs(const Obs_Conf &conf_)
       d_nchannels_in(conf_.nchannels_in),
       d_nchannels_out(conf_.nchannels_out),
       d_T_rx_TOW_set(false),
+      d_always_output_gs(conf_.always_output_gs),
       d_dump(conf_.dump),
       d_dump_mat(conf_.dump_mat && d_dump)
 {
@@ -749,5 +750,14 @@ int hybrid_observables_gs::general_work(int noutput_items __attribute__((unused)
                     return 1;
                 }
         }
+    if (d_always_output_gs)
+        {
+            Gnss_Synchro empty_gs{};
+            for (uint32_t n = 0; n < d_nchannels_out; n++)
+                {
+                    out[n][0] = empty_gs;
+                }
+            return 1;
+        }
     return 0;
 }
diff --git a/src/algorithms/observables/gnuradio_blocks/hybrid_observables_gs.h b/src/algorithms/observables/gnuradio_blocks/hybrid_observables_gs.h
index ff174312e..eb45ec232 100644
--- a/src/algorithms/observables/gnuradio_blocks/hybrid_observables_gs.h
+++ b/src/algorithms/observables/gnuradio_blocks/hybrid_observables_gs.h
@@ -119,6 +119,7 @@ private:
     uint32_t d_nchannels_out;
 
     bool d_T_rx_TOW_set;  // rx time follow GPST
+    bool d_always_output_gs;
     bool d_dump;
     bool d_dump_mat;
 };
diff --git a/src/algorithms/observables/libs/obs_conf.h b/src/algorithms/observables/libs/obs_conf.h
index 3c0e644e4..22da24476 100644
--- a/src/algorithms/observables/libs/obs_conf.h
+++ b/src/algorithms/observables/libs/obs_conf.h
@@ -38,6 +38,7 @@ public:
     uint32_t nchannels_out{0U};
     uint32_t observable_interval_ms{20U};
     bool enable_carrier_smoothing{false};
+    bool always_output_gs{false};
     bool dump{false};
     bool dump_mat{false};
 };