diff --git a/echopype/calibrate/cal_params.py b/echopype/calibrate/cal_params.py
index ae3d6d4a4..0c861c9e9 100644
--- a/echopype/calibrate/cal_params.py
+++ b/echopype/calibrate/cal_params.py
@@ -395,9 +395,11 @@ def get_cal_params_EK(
 
     # Private function to get fs
     def _get_fs():
-        if "fs_receiver" in vend:
-            return vend["fs_receiver"]
+        # If receiver_sampling_frequency recorded, use it
+        if "receiver_sampling_frequency" in vend:
+            return vend["receiver_sampling_frequency"]
         else:
+            # If receiver_sampling_frequency not recorded, use default value
             # loop through channel since transceiver can vary
             fs = []
             for ch in vend["channel"]:
diff --git a/echopype/convert/set_groups_ek60.py b/echopype/convert/set_groups_ek60.py
index 7826b1aec..55387af4b 100644
--- a/echopype/convert/set_groups_ek60.py
+++ b/echopype/convert/set_groups_ek60.py
@@ -585,6 +585,17 @@ def set_beam(self) -> List[xr.Dataset]:
                     ["channel"],
                     beam_params["gpt_software_version"],
                 ),
+                "transmit_type": (
+                    [],
+                    "CW",
+                    {
+                        "long_name": "Type of transmitted pulse",
+                        "flag_values": ["CW"],
+                        "flag_meanings": [
+                            "Continuous Wave",
+                        ],
+                    },
+                ),
                 "beam_stabilisation": (
                     [],
                     np.array(0, np.byte),
@@ -664,17 +675,10 @@ def set_beam(self) -> List[xr.Dataset]:
                         "flag_meanings": ["power only", "angle only", "power and angle"],
                     },
                 ),
-                "sample_time_offset": (
+                "range_sample_offset": (
                     ["ping_time"],
-                    (
-                        np.array(self.parser_obj.ping_data_dict["offset"][ch])
-                        * np.array(self.parser_obj.ping_data_dict["sample_interval"][ch])
-                    ),
-                    {
-                        "long_name": "Time offset that is subtracted from the timestamp"
-                        " of each sample",
-                        "units": "s",
-                    },
+                    np.array(self.parser_obj.ping_data_dict["offset"][ch], dtype=np.int32),
+                    {"long_name": "First sample number"},
                 ),
                 "channel_mode": (
                     ["ping_time"],
diff --git a/echopype/convert/set_groups_ek80.py b/echopype/convert/set_groups_ek80.py
index f5eb424af..67c6d25eb 100644
--- a/echopype/convert/set_groups_ek80.py
+++ b/echopype/convert/set_groups_ek80.py
@@ -1285,7 +1285,7 @@ def set_vendor(self) -> xr.Dataset:
                 },
             )
         if "rx_sample_frequency" in param_dict:
-            ds_table["fs_receiver"] = xr.DataArray(
+            ds_table["receiver_sampling_frequency"] = xr.DataArray(
                 param_dict["rx_sample_frequency"].astype(float),
                 dims=["channel"],
                 coords={"channel": ds_table["channel"]},