diff --git a/front-generator/render-params.json b/front-generator/render-params.json
index 4a260a9..cfaeb24 100644
--- a/front-generator/render-params.json
+++ b/front-generator/render-params.json
@@ -366,7 +366,7 @@
                     "widget": "select", "label": "Режим работы модулятора", "name": "txModulatorIsTest",
                     "values": [{"label": "Нормальный", "value": "false"}, {"label": "Тест (CW)", "value": "true"}]
                   },
-                  {"widget": "number", "label": "Ослабление, дБ", "name": "txAttenuation", "max": 0, "min": -40, "step": 0.25},
+                  {"widget": "number", "label": "Ослабление, дБ", "name": "txAttenuation", "max": 0, "min": -80, "step": 0.25},
                   {
                     "widget": "select", "label": "Входные данные", "name": "txIsTestInput",
                     "values": [{"label": "Ethernet", "value": "false"}, {"label": "Тест", "value": "true"}]
diff --git a/static/main-shps.html b/static/main-shps.html
index ba2710e..2e306af 100644
--- a/static/main-shps.html
+++ b/static/main-shps.html
@@ -116,7 +116,7 @@
                             <option :value="true">Тест (CW)</option>
                         </select>
                     </label>
-                    <label><span>Ослабление, дБ</span><input type="number" v-model="paramRxtx.txAttenuation" min="-40" step="0.25"/></label>
+                    <label><span>Ослабление, дБ</span><input type="number" v-model="paramRxtx.txAttenuation" min="-80" step="0.25"/></label>
                     <label>
                         <span>Входные данные</span>
                         <select v-model="paramRxtx.txIsTestInput">
@@ -360,7 +360,7 @@
                     txEn: false,
                     txAutoStart: false,
                     txModulatorIsTest: false,
-                    txAttenuation: -40,
+                    txAttenuation: -80,
                     txIsTestInput: false,
                     txCentralFreq: 0,
                     txBaudrate: 0,