diff --git a/capture_hourly.sh b/capture_hourly.sh
index 38d63b7..4652d42 100755
--- a/capture_hourly.sh
+++ b/capture_hourly.sh
@@ -6,25 +6,82 @@ SCRIPT_OWNER="${CAPTURE_USER:-$(stat -c %U "$SCRIPT_DIR")}"
 SCRIPT_OWNER_HOME="$(getent passwd "$SCRIPT_OWNER" | cut -d: -f6)"
 cd "$SCRIPT_DIR"
 
-source "$SCRIPT_DIR/.env"
+ENV_FILE="$SCRIPT_DIR/.env"
+declare -A DOTENV_VALUES
+
+trim_whitespace() {
+  local value="$1"
+  value="${value#"${value%%[![:space:]]*}"}"
+  value="${value%"${value##*[![:space:]]}"}"
+  printf '%s' "$value"
+}
+
+load_env_file() {
+  local line key value quote_char
+
+  if [[ ! -f "$ENV_FILE" ]]; then
+    echo "Не найден .env: $ENV_FILE" >&2
+    exit 1
+  fi
+
+  while IFS= read -r line || [[ -n "$line" ]]; do
+    line="${line%$'\r'}"
+    line="$(trim_whitespace "$line")"
+
+    [[ -z "$line" || "$line" == \#* ]] && continue
+
+    if [[ "$line" == export\ * ]]; then
+      line="${line#export }"
+    fi
+
+    [[ "$line" == *=* ]] || continue
+
+    key="$(trim_whitespace "${line%%=*}")"
+    value="$(trim_whitespace "${line#*=}")"
+
+    if [[ ${#value} -ge 2 ]]; then
+      quote_char="${value:0:1}"
+      if [[ ( "$quote_char" == "'" || "$quote_char" == '"' ) && "${value: -1}" == "$quote_char" ]]; then
+        value="${value:1:${#value}-2}"
+      fi
+    fi
+
+    DOTENV_VALUES["$key"]="$value"
+  done < "$ENV_FILE"
+}
+
+get_env_setting() {
+  local key="$1"
+  local default="${2-}"
+
+  if [[ -n "${!key+x}" ]]; then
+    printf '%s' "${!key}"
+  elif [[ -n "${DOTENV_VALUES[$key]+x}" ]]; then
+    printf '%s' "${DOTENV_VALUES[$key]}"
+  else
+    printf '%s' "$default"
+  fi
+}
+
+load_env_file
 ############################
 # НАСТРОЙКИ
 ############################
 
-BASE_DIR="${CAPTURE_BASE_DIR:-${SCRIPT_OWNER_HOME}/dataset/noise}"
+BASE_DIR="$(get_env_setting CAPTURE_BASE_DIR "${SCRIPT_OWNER_HOME}/dataset/noise")"
 
 # Путь к python из venv
-PYTHON_BIN="${PYTHON_BIN:-$SCRIPT_DIR/.venv-sdr/bin/python}"
+PYTHON_BIN="$(get_env_setting PYTHON_BIN "$SCRIPT_DIR/.venv-sdr/bin/python")"
 
 # Путь к headless скрипту
-SCRIPT_PATH="${SCRIPT_PATH:-$SCRIPT_DIR/scripts_nn/data_saver_headless.py}"
+SCRIPT_PATH="$(get_env_setting SCRIPT_PATH "$SCRIPT_DIR/scripts_nn/data_saver_headless.py")"
 
-RUN_ONCE="${RUN_ONCE:-0}"
-CAPTURE_LOG_FILE="${CAPTURE_LOG_FILE:-$BASE_DIR/capture_hourly.log}"
+RUN_ONCE="$(get_env_setting RUN_ONCE "0")"
+CAPTURE_LOG_FILE="$(get_env_setting CAPTURE_LOG_FILE "$BASE_DIR/capture_hourly.log")"
 
 SYSTEMCTL_BIN=(systemctl)
 CURRENT_CAPTURE_PID=""
-CURRENT_SERVICE_UNIT=""
+CURRENT_SERVICE_UNITS=()
 
 
 
@@ -54,32 +111,32 @@ declare -A SERIAL
 declare -A FREQ_HZ
 declare -A SERVICE_UNIT
 
-SERIAL[433]="$hack_433"
+SERIAL[433]="$(get_env_setting hack_433)"
 FREQ_HZ[433]="433000000"
 
-SERIAL[750]="$hack_750"
+SERIAL[750]="$(get_env_setting hack_750)"
 FREQ_HZ[750]="750000000"
 
 
-SERIAL[915]="$hack_915"
+SERIAL[915]="$(get_env_setting hack_915)"
 FREQ_HZ[915]="915000000"
 
-SERIAL[1200]="$hack_1200"
+SERIAL[1200]="$(get_env_setting hack_1200)"
 FREQ_HZ[1200]="1200000000"
 
-SERIAL[2400]="$hack_2400"
+SERIAL[2400]="$(get_env_setting hack_2400)"
 FREQ_HZ[2400]="2400000000"
 
-SERIAL[3300]="$hack_3300"
+SERIAL[3300]="$(get_env_setting hack_3300)"
 FREQ_HZ[3300]="3300000000"
 
-SERIAL[4500]="$hack_4500"
+SERIAL[4500]="$(get_env_setting hack_4500)"
 FREQ_HZ[4500]="4500000000"
 
-SERIAL[5200]="$hack_5200"
+SERIAL[5200]="$(get_env_setting hack_5200)"
 FREQ_HZ[5200]="5200000000"
 
-SERIAL[5800]="$hack_5800"
+SERIAL[5800]="$(get_env_setting hack_5800)"
 FREQ_HZ[5800]="5800000000"
 
 SERVICE_UNIT[433]="dronedetector-sdr-433.service"
@@ -109,33 +166,69 @@ service_exists() {
   systemctl_run show "$unit" >/dev/null 2>&1
 }
 
+service_is_active() {
+  local unit="$1"
+  systemctl_run is-active --quiet "$unit"
+}
+
+remember_service_unit() {
+  local unit="$1"
+  local existing
+
+  for existing in "${CURRENT_SERVICE_UNITS[@]}"; do
+    if [[ "$existing" == "$unit" ]]; then
+      return 0
+    fi
+  done
+
+  CURRENT_SERVICE_UNITS+=("$unit")
+}
+
 stop_band_service() {
   local band="$1"
-  local unit="${SERVICE_UNIT[$band]:-}"
+  local serial="${SERIAL[$band]:-}"
+  local other_band unit other_serial
 
-  if [[ -z "$unit" ]]; then
-    log "Для band=$band не найден service unit"
+  if [[ -z "$serial" ]]; then
+    log "Для band=$band пустой serial, пропускаю stop/start сервисов"
     return 0
   fi
 
-  if ! service_exists "$unit"; then
-    log "Service unit $unit не установлен, пропускаю stop/start"
-    return 0
-  fi
+  CURRENT_SERVICE_UNITS=()
+  for other_band in "${!SERVICE_UNIT[@]}"; do
+    unit="${SERVICE_UNIT[$other_band]:-}"
+    other_serial="${SERIAL[$other_band]:-}"
 
-  log "Останавливаю service $unit перед записью band=$band"
-  systemctl_run stop "$unit"
-  CURRENT_SERVICE_UNIT="$unit"
+    if [[ -z "$unit" || -z "$other_serial" || "$other_serial" != "$serial" ]]; then
+      continue
+    fi
+
+    if ! service_exists "$unit"; then
+      log "Service unit $unit не установлен, пропускаю"
+      continue
+    fi
+
+    if service_is_active "$unit"; then
+      remember_service_unit "$unit"
+    fi
+
+    log "Останавливаю service $unit перед записью band=$band"
+    systemctl_run stop "$unit"
+  done
 }
 
 start_current_service() {
-  if [[ -z "$CURRENT_SERVICE_UNIT" ]]; then
+  local unit
+
+  if [[ "${#CURRENT_SERVICE_UNITS[@]}" -eq 0 ]]; then
     return 0
   fi
 
-  log "Запускаю service $CURRENT_SERVICE_UNIT после записи"
-  systemctl_run start "$CURRENT_SERVICE_UNIT"
-  CURRENT_SERVICE_UNIT=""
+  for unit in "${CURRENT_SERVICE_UNITS[@]}"; do
+    log "Запускаю service $unit после записи"
+    systemctl_run start "$unit"
+  done
+  CURRENT_SERVICE_UNITS=()
 }
 
 cleanup_capture() {
@@ -146,10 +239,13 @@ cleanup_capture() {
   fi
   CURRENT_CAPTURE_PID=""
 
-  if [[ -n "$CURRENT_SERVICE_UNIT" ]]; then
-    log "Восстанавливаю service $CURRENT_SERVICE_UNIT при завершении скрипта"
-    systemctl_run start "$CURRENT_SERVICE_UNIT" || true
-    CURRENT_SERVICE_UNIT=""
+  if [[ "${#CURRENT_SERVICE_UNITS[@]}" -gt 0 ]]; then
+    local unit
+    for unit in "${CURRENT_SERVICE_UNITS[@]}"; do
+      log "Восстанавливаю service $unit при завершении скрипта"
+      systemctl_run start "$unit" || true
+    done
+    CURRENT_SERVICE_UNITS=()
   fi
 }
 
@@ -200,10 +296,13 @@ ensure_requirements() {
   mkdir -p "$BASE_DIR"
   mkdir -p "$(dirname "$CAPTURE_LOG_FILE")"
 
-  if [[ -n "${CAPTURE_ORDER:-}" ]]; then
+  local capture_order
+  capture_order="$(get_env_setting CAPTURE_ORDER)"
+
+  if [[ -n "$capture_order" ]]; then
     ORDER=()
     local band
-    for band in ${CAPTURE_ORDER//,/ }; do
+    for band in ${capture_order//,/ }; do
       ORDER+=("$band")
     done
   fi