diff --git a/.gitignore b/.gitignore
index 71fcfdf..c9bf6cf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -183,4 +183,5 @@ cython_debug/
 #.idea/
 
 *.png
-/logs/*.log
\ No newline at end of file
+/logs/*.log
+runtime/
diff --git a/deploy/docker/docker-compose.yml b/deploy/docker/docker-compose.yml
index 9c759c1..197b849 100644
--- a/deploy/docker/docker-compose.yml
+++ b/deploy/docker/docker-compose.yml
@@ -9,6 +9,7 @@ services:
       - ../../.env
     environment:
       - PYTHONPATH=/app
+      - JAMMER_STATE_FILE=/app/runtime/jammer_active.flag
     working_dir: /app
     command: ["python3", "-m", "src.server_to_master"]
     restart: unless-stopped
@@ -16,6 +17,7 @@ services:
       - "5010:5010"
     volumes:
       - ../../.env:/app/.env:ro
+      - ../../runtime:/app/runtime
     networks:
       - dronedetector-net
 
diff --git a/out.iq b/out.iq
new file mode 100644
index 0000000..2cdc478
Binary files /dev/null and b/out.iq differ
diff --git a/src/embedded_3300.py b/src/embedded_3300.py
index d1267c3..ef078a3 100644
--- a/src/embedded_3300.py
+++ b/src/embedded_3300.py
@@ -4,6 +4,7 @@ import time
 from common.runtime import load_root_env, validate_env, as_bool, as_str
 from smb.SMBConnection import SMBConnection
 from utils.datas_processing import pack_elems, agregator, send_data, send_telemetry, save_data, remote_save_data
+from utils.jammer_state_flag import is_jammer_active
 from core.sig_n_medi_collect import Signal, SignalsArray, get_signal_length
 from core.multichannelswitcher import MultiChannel, get_centre_freq
 
@@ -90,7 +91,7 @@ def work(lvl):
                 if alarm:
                     print('----ALARM---- ', freq)
                     multi_channel.db_alarms_zeros(circle_buffer)
-                else:
+                elif not is_jammer_active():
                     circle_buffer.update(sigs_array, packet_timestamps=sigs_ts_array)
 
 
diff --git a/src/embedded_433.py b/src/embedded_433.py
index 3f72a6f..d890bb3 100644
--- a/src/embedded_433.py
+++ b/src/embedded_433.py
@@ -4,6 +4,7 @@ import time
 from common.runtime import load_root_env, validate_env, as_bool, as_str
 from smb.SMBConnection import SMBConnection
 from utils.datas_processing import pack_elems, agregator, send_data, send_telemetry, save_data, remote_save_data
+from utils.jammer_state_flag import is_jammer_active
 from core.sig_n_medi_collect import Signal, SignalsArray, get_signal_length
 from core.multichannelswitcher import MultiChannel, get_centre_freq
 
@@ -90,7 +91,7 @@ def work(lvl):
                 if alarm:
                     print('----ALARM---- ', freq)
                     multi_channel.db_alarms_zeros(circle_buffer)
-                else:
+                elif not is_jammer_active():
                     circle_buffer.update(sigs_array, packet_timestamps=sigs_ts_array)
 
 
diff --git a/src/embedded_4500.py b/src/embedded_4500.py
index a921188..fcd6cfe 100644
--- a/src/embedded_4500.py
+++ b/src/embedded_4500.py
@@ -4,6 +4,7 @@ import time
 from common.runtime import load_root_env, validate_env, as_bool, as_str
 from smb.SMBConnection import SMBConnection
 from utils.datas_processing import pack_elems, agregator, send_data, send_telemetry, save_data, remote_save_data
+from utils.jammer_state_flag import is_jammer_active
 from core.sig_n_medi_collect import Signal, SignalsArray, get_signal_length
 from core.multichannelswitcher import MultiChannel, get_centre_freq
 
@@ -90,7 +91,7 @@ def work(lvl):
                 if alarm:
                     print('----ALARM---- ', freq)
                     multi_channel.db_alarms_zeros(circle_buffer)
-                else:
+                elif not is_jammer_active():
                     circle_buffer.update(sigs_array, packet_timestamps=sigs_ts_array)
 
 
diff --git a/src/embedded_5200.py b/src/embedded_5200.py
index 91a3f04..c021cec 100644
--- a/src/embedded_5200.py
+++ b/src/embedded_5200.py
@@ -4,6 +4,7 @@ import time
 from common.runtime import load_root_env, validate_env, as_bool, as_str
 from smb.SMBConnection import SMBConnection
 from utils.datas_processing import pack_elems, agregator, send_data, send_telemetry, save_data, remote_save_data
+from utils.jammer_state_flag import is_jammer_active
 from core.sig_n_medi_collect import Signal, SignalsArray, get_signal_length
 from core.multichannelswitcher import MultiChannel, get_centre_freq
 
@@ -90,7 +91,7 @@ def work(lvl):
                 if alarm:
                     print('----ALARM---- ', freq)
                     multi_channel.db_alarms_zeros(circle_buffer)
-                else:
+                elif not is_jammer_active():
                     circle_buffer.update(sigs_array, packet_timestamps=sigs_ts_array)
 
 
diff --git a/src/embedded_5800.py b/src/embedded_5800.py
index f7dd93d..e70e2c7 100644
--- a/src/embedded_5800.py
+++ b/src/embedded_5800.py
@@ -4,6 +4,7 @@ import time
 from common.runtime import load_root_env, validate_env, as_bool, as_str
 from smb.SMBConnection import SMBConnection
 from utils.datas_processing import pack_elems, agregator, send_data, send_telemetry, save_data, remote_save_data
+from utils.jammer_state_flag import is_jammer_active
 from core.sig_n_medi_collect import Signal, SignalsArray, get_signal_length
 from core.multichannelswitcher import MultiChannel, get_centre_freq
 
@@ -90,7 +91,7 @@ def work(lvl):
                 if alarm:
                     print('----ALARM---- ', freq)
                     multi_channel.db_alarms_zeros(circle_buffer)
-                else:
+                elif not is_jammer_active():
                     circle_buffer.update(sigs_array, packet_timestamps=sigs_ts_array)
 
 
diff --git a/src/embedded_750.py b/src/embedded_750.py
index 38c36e7..12368dc 100644
--- a/src/embedded_750.py
+++ b/src/embedded_750.py
@@ -4,6 +4,7 @@ import time
 from common.runtime import load_root_env, validate_env, as_bool, as_str
 from smb.SMBConnection import SMBConnection
 from utils.datas_processing import pack_elems, agregator, send_data, send_telemetry, save_data, remote_save_data
+from utils.jammer_state_flag import is_jammer_active
 from core.sig_n_medi_collect import Signal, SignalsArray, get_signal_length
 from core.multichannelswitcher import MultiChannel, get_centre_freq
 
@@ -93,7 +94,7 @@ def work(lvl):
                 if alarm:
                     print('----ALARM---- ', freq)
                     multi_channel.db_alarms_zeros(circle_buffer)
-                else:
+                elif not is_jammer_active():
                     circle_buffer.update(sigs_array, packet_timestamps=sigs_ts_array)
 
 
diff --git a/src/embedded_868.py b/src/embedded_868.py
index cc7bbe8..fda0b30 100644
--- a/src/embedded_868.py
+++ b/src/embedded_868.py
@@ -4,6 +4,7 @@ import time
 from common.runtime import load_root_env, validate_env, as_bool, as_str
 from smb.SMBConnection import SMBConnection
 from utils.datas_processing import pack_elems, agregator, send_data, send_telemetry, save_data, remote_save_data
+from utils.jammer_state_flag import is_jammer_active
 from core.sig_n_medi_collect import Signal, SignalsArray, get_signal_length
 from core.multichannelswitcher import MultiChannel, get_centre_freq
 
@@ -90,7 +91,7 @@ def work(lvl):
                 if alarm:
                     print('----ALARM---- ', freq)
                     multi_channel.db_alarms_zeros(circle_buffer)
-                else:
+                elif not is_jammer_active():
                     circle_buffer.update(sigs_array, packet_timestamps=sigs_ts_array)
 
 
diff --git a/src/server_to_master.py b/src/server_to_master.py
index 7793949..450b022 100644
--- a/src/server_to_master.py
+++ b/src/server_to_master.py
@@ -14,6 +14,7 @@ from fastapi import FastAPI
 from common.runtime import load_root_env, validate_env, as_bool, as_float, as_int, as_str
 from datetime import datetime, timedelta
 import logging 
+from src.utils.jammer_state_flag import set_jammer_active
 
 logging.basicConfig(level=logging.INFO)
 
@@ -416,6 +417,7 @@ async def jammer_active():
 
     freqs_alarm = {freq: 0 for freq in freqs}
     jammer_event = True
+    set_jammer_active(True)
 
     print('АКТИВИРУЕМ ПОДАВИТЕЛЬ ААААААААААААААААААААААААААААААААААААААААААААААА!!!!')
     print('-' * 20)
@@ -438,6 +440,7 @@ async def jammer_deactive():
     global sending_data_task
     alarm = False
     jammer_event = False
+    set_jammer_active(False)
     sending_data_task = asyncio.create_task(sending_data())
 
     print('ОТКЛЮАЕМ ПОДАВИТЕЛЬ ААААААААААААААААААААААААААААААААААААААААААААААААА!!!!')
@@ -496,6 +499,7 @@ async def jam_server():
                         await jammer_deactive()
         except Exception as e:
             jam_server_connect = None
+            set_jammer_active(False)
             if jammer_event:
                 await jammer_deactive()
 
@@ -508,6 +512,7 @@ async def startup_event():
     """
 
     global sending_data_task
+    set_jammer_active(False)
     asyncio.create_task(jam_server())
     sending_data_task = asyncio.create_task(sending_data())
 
diff --git a/src/utils/jammer_state_flag.py b/src/utils/jammer_state_flag.py
new file mode 100644
index 0000000..7a75655
--- /dev/null
+++ b/src/utils/jammer_state_flag.py
@@ -0,0 +1,47 @@
+import os
+import time
+from pathlib import Path
+
+_DEFAULT_FLAG_PATH = Path(__file__).resolve().parents[2] / "runtime" / "jammer_active.flag"
+_FLAG_PATH = Path(os.getenv("JAMMER_STATE_FILE", str(_DEFAULT_FLAG_PATH)))
+_CACHE_TTL_SEC = float(os.getenv("JAMMER_STATE_CACHE_TTL_SEC", "0.25"))
+_STALE_SEC = float(os.getenv("JAMMER_STATE_STALE_SEC", "5.0"))
+
+_cached_value = False
+_cached_checked_monotonic = 0.0
+
+
+def _read_uncached() -> bool:
+    try:
+        stat = _FLAG_PATH.stat()
+        if time.time() - stat.st_mtime > _STALE_SEC:
+            return False
+        return _FLAG_PATH.read_text(encoding="ascii").strip() == "1"
+    except OSError:
+        return False
+
+
+def is_jammer_active() -> bool:
+    global _cached_value
+    global _cached_checked_monotonic
+
+    now = time.monotonic()
+    if now - _cached_checked_monotonic < _CACHE_TTL_SEC:
+        return _cached_value
+
+    _cached_value = _read_uncached()
+    _cached_checked_monotonic = now
+    return _cached_value
+
+
+def set_jammer_active(active: bool) -> None:
+    global _cached_value
+    global _cached_checked_monotonic
+
+    _FLAG_PATH.parent.mkdir(parents=True, exist_ok=True)
+    tmp_path = _FLAG_PATH.with_name(f"{_FLAG_PATH.name}.{os.getpid()}.tmp")
+    tmp_path.write_text("1" if active else "0", encoding="ascii")
+    os.replace(tmp_path, _FLAG_PATH)
+
+    _cached_value = bool(active)
+    _cached_checked_monotonic = time.monotonic()