diff --git a/data/download_data_grand.py b/data/download_data_grand.py
index 3bb1e5f0..c2031bf8 100755
--- a/data/download_data_grand.py
+++ b/data/download_data_grand.py
@@ -20,7 +20,8 @@
 #FILE_MODEL = "grand_model_2207.tar.gz"
 #LINK_MODEL = "https://forge.in2p3.fr/attachments/download/201909/grand_model_2306.tar.gz"
 #LINK_MODEL = "https://forge.in2p3.fr/attachments/download/251637/grand_model_190224.tar.gz"
-LINK_MODEL = "https://forge.in2p3.fr/attachments/download/340302/grand_model_141124.tar.gz"
+#LINK_MODEL = "https://forge.in2p3.fr/attachments/download/340302/grand_model_141124.tar.gz"
+LINK_MODEL = "https://forge.in2p3.fr/attachments/download/362481/grand_model_20241218.tar.gz"
 FILE_MODEL = LINK_MODEL.split("/")[-1]
 
 
diff --git a/data/download_grand_antenna_models.py b/data/download_grand_antenna_models.py
index 59150f85..5190185a 100755
--- a/data/download_grand_antenna_models.py
+++ b/data/download_grand_antenna_models.py
@@ -20,7 +20,8 @@
 #FILE_MODEL = "grand_model_2207.tar.gz"
 #LINK_MODEL = "https://forge.in2p3.fr/attachments/download/201909/grand_model_2306.tar.gz"
 #LINK_MODEL = "https://forge.in2p3.fr/attachments/download/251637/grand_model_190224.tar.gz"
-LINK_MODEL = "https://forge.in2p3.fr/attachments/download/340302/grand_model_141124.tar.gz"
+#LINK_MODEL = "https://forge.in2p3.fr/attachments/download/340302/grand_model_141124.tar.gz"
+LINK_MODEL = "https://forge.in2p3.fr/attachments/download/362481/grand_model_20241218.tar.gz"
 FILE_MODEL = LINK_MODEL.split("/")[-1]
 
 
diff --git a/data/download_new_RFchain_grand.py b/data/download_new_RFchain_grand.py
index 80099a14..48438f79 100755
--- a/data/download_new_RFchain_grand.py
+++ b/data/download_new_RFchain_grand.py
@@ -1,9 +1,9 @@
 #! /usr/bin/env python3
 
 '''
-Created on 19 juil. 2022
+Created on 24 DEC. 2024
 
-@author: Jean-Marc Colley, CNRS/IN2P3/LPNHE
+@author: SN
 
 '''
 import tarfile
@@ -20,7 +20,8 @@
 #FILE_MODEL = "grand_model_2207.tar.gz"
 #LINK_MODEL = "https://forge.in2p3.fr/attachments/download/201909/grand_model_2306.tar.gz"
 #LINK_MODEL = "https://forge.in2p3.fr/attachments/download/251637/grand_model_190224.tar.gz"
-LINK_MODEL = "https://forge.in2p3.fr/attachments/download/312643/RFchain_V3.tar.gz"
+#LINK_MODEL = "https://forge.in2p3.fr/attachments/download/312643/RFchain_V3.tar.gz"
+LINK_MODEL = "https://forge.in2p3.fr/attachments/download/362478/RF_chain_20241218.tar.gz"
 FILE_MODEL = LINK_MODEL.split("/")[-1]
 # class MyProgressBar():
 #     def __init__(self):
diff --git a/examples/read_modify_RF_chain_elements.ipynb b/examples/read_modify_RF_chain_elements.ipynb
index 9c1ad0b3..3e0d6253 100644
--- a/examples/read_modify_RF_chain_elements.ipynb
+++ b/examples/read_modify_RF_chain_elements.ipynb
@@ -382,7 +382,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 4,
+   "execution_count": 5,
    "id": "e9efdc03-0134-4c05-a6f3-3ec60ea02a3b",
    "metadata": {},
    "outputs": [],
@@ -401,7 +401,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 5,
+   "execution_count": 6,
    "id": "6426156e-196d-4d2b-93bb-bd0d44ad4d24",
    "metadata": {},
    "outputs": [],
@@ -422,7 +422,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 6,
+   "execution_count": 7,
    "id": "e64d22fb-f93d-4858-9d9c-06d2f30a9611",
    "metadata": {},
    "outputs": [],
@@ -464,7 +464,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 7,
+   "execution_count": 9,
    "id": "da9c238a-ddf5-46db-a280-6486ed1727bf",
    "metadata": {},
    "outputs": [],
@@ -475,7 +475,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 8,
+   "execution_count": 10,
    "id": "568de170-80af-486e-8806-786fb472ae2d",
    "metadata": {},
    "outputs": [],
@@ -505,7 +505,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 9,
+   "execution_count": 12,
    "id": "a9d4ac60-6158-4b7a-b44e-50335b898c4f",
    "metadata": {},
    "outputs": [],
@@ -517,7 +517,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 10,
+   "execution_count": 13,
    "id": "138e4006-fcf7-406f-ba04-8dd9d8f5b2be",
    "metadata": {},
    "outputs": [
diff --git a/grand/sim/detector/rf_chain.py b/grand/sim/detector/rf_chain.py
index 87de8558..9f9a1e08 100755
--- a/grand/sim/detector/rf_chain.py
+++ b/grand/sim/detector/rf_chain.py
@@ -183,7 +183,7 @@ def _set_name_data_file(self, axis):
         ! 2 Port Network Data from SP1.SP block
         """
         axis_dict = {0:"X", 1:"Y", 2:"Z"}
-        filename = os.path.join("detector", "RFchain_v2", "NewMatchingNetwork"f"{axis_dict[axis]}.s2p")
+        filename = os.path.join("detector", "RFchain_v2", "MatchingNetwork"f"{axis_dict[axis]}.s2p")
 
         return grand_add_path_data(filename)
 
@@ -421,7 +421,7 @@ def _set_name_data_file(self, axis):
         Hz  S  dB  R 50.000
         """
         axis_dict = {0:"X", 1:"Y", 2:"Z"}
-        filename = os.path.join("detector", "RFchain_v2", "NewLNA_"f"{axis_dict[axis]}.s2p")
+        filename = os.path.join("detector", "RFchain_v2", "LNA-"f"{axis_dict[axis]}.s2p")
 
         return grand_add_path_data(filename)
 
@@ -705,8 +705,9 @@ def _set_name_data_file(self, axis=0):
         """
         assert self.gain in [-5, 0, 5, 20]
         logger.info(f"vga gain: {self.gain} dB")
-        filename = os.path.join("detector", "RFchain_v2", "filter+"f"vga{self.gain}db+filter.s2p")
-
+        #filename = os.path.join("detector", "RFchain_v2", "filter+"f"vga{self.gain}db+filter.s2p")
+        filename = os.path.join("detector", "RFchain_v2", "feb+amfitler+biast.s2p")
+        
         return grand_add_path_data(filename)
 
     def compute_for_freqs(self, freqs_mhz):
diff --git a/scripts/T1_trigger_offline.py b/scripts/T1_trigger_offline.py
index 3f963c60..2350cd74 100644
--- a/scripts/T1_trigger_offline.py
+++ b/scripts/T1_trigger_offline.py
@@ -1,4 +1,4 @@
-#!/pbs/home/x/xtian/.conda/envs/grandlib2304/bin/python3.9
+#!/usr/bin/env python3
 import numpy as np
 import sys
 import grand.dataio.root_trees as rt
diff --git a/scripts/figures/Output_Voltage_VGA.png b/scripts/figures/Output_Voltage_VGA.png
index e0e39a7f..1b515705 100644
Binary files a/scripts/figures/Output_Voltage_VGA.png and b/scripts/figures/Output_Voltage_VGA.png differ
diff --git a/scripts/figures/total_transfer_function_vgagain20.png b/scripts/figures/total_transfer_function_vgagain20.png
index b5357420..2757b064 100644
Binary files a/scripts/figures/total_transfer_function_vgagain20.png and b/scripts/figures/total_transfer_function_vgagain20.png differ
diff --git a/scripts/tefield_0-0_L0_0000.root b/scripts/tefield_0-0_L0_0000.root
deleted file mode 100644
index 2893b0f3..00000000
Binary files a/scripts/tefield_0-0_L0_0000.root and /dev/null differ