diff --git a/src/algorithms/tracking/libs/dll_pll_conf.cc b/src/algorithms/tracking/libs/dll_pll_conf.cc
index 9650b154c..cc9a9fbae 100644
--- a/src/algorithms/tracking/libs/dll_pll_conf.cc
+++ b/src/algorithms/tracking/libs/dll_pll_conf.cc
@@ -29,7 +29,7 @@ Dll_Pll_Conf::Dll_Pll_Conf()
     /* DLL/PLL tracking configuration */
     high_dyn = false;
     smoother_length = 10;
-    fs_in = 0.0;
+    fs_in = 2000000.0;
     vector_length = 0U;
     dump = false;
     dump_mat = true;
@@ -81,7 +81,8 @@ void Dll_Pll_Conf::SetFromConfiguration(ConfigurationInterface *configuration,
     item_type = configuration->property(role + ".item_type", item_type);
     if (!item_type_valid(item_type))
         {
-            throw std::invalid_argument("Unknown item type: " + item_type);
+            LOG(WARNING) << "Unknown item type: " + item_type << ". Set to gr_complex";
+            item_type = "gr_complex";
         }
 
     int fs_in_deprecated = configuration->property("GNSS-SDR.internal_fs_hz", fs_in);
diff --git a/src/algorithms/tracking/libs/dll_pll_conf_fpga.cc b/src/algorithms/tracking/libs/dll_pll_conf_fpga.cc
index f80cd6523..d984ac0a0 100644
--- a/src/algorithms/tracking/libs/dll_pll_conf_fpga.cc
+++ b/src/algorithms/tracking/libs/dll_pll_conf_fpga.cc
@@ -30,7 +30,7 @@ Dll_Pll_Conf_Fpga::Dll_Pll_Conf_Fpga()
     /* DLL/PLL tracking configuration */
     high_dyn = false;
     smoother_length = 10;
-    fs_in = 0.0;
+    fs_in = 12500000.0;
     vector_length = 0U;
     dump = false;
     dump_mat = true;
@@ -89,7 +89,7 @@ Dll_Pll_Conf_Fpga::Dll_Pll_Conf_Fpga()
 void Dll_Pll_Conf_Fpga::SetFromConfiguration(ConfigurationInterface *configuration,
     const std::string &role)
 {
-    int32_t fs_in_deprecated = configuration->property("GNSS-SDR.internal_fs_hz", 12500000);
+    int32_t fs_in_deprecated = configuration->property("GNSS-SDR.internal_fs_hz", fs_in);
     fs_in = configuration->property("GNSS-SDR.internal_fs_sps", fs_in_deprecated);
     high_dyn = configuration->property(role + ".high_dyn", high_dyn);
     smoother_length = configuration->property(role + ".smoother_length", smoother_length);