diff --git a/server.js b/server.js
index 2464725..33c2007 100644
--- a/server.js
+++ b/server.js
@@ -2859,9 +2859,7 @@ app.put('/device-parameters', async (req, res) => {
     DATEMOD,
     TIMEFORMAT,
     LANGUAGE,
-    VIDEOFORMAT,
     GEOMOD,
-    SUBSTREAMMODE,
     TIMEZ,
     NE,
     TE,
diff --git a/static/scripts/parameters-form.js b/static/scripts/parameters-form.js
index aaa859f..2cd7927 100644
--- a/static/scripts/parameters-form.js
+++ b/static/scripts/parameters-form.js
@@ -129,7 +129,6 @@ for (let radioButton of radioButtons) {
             document.getElementById('system-language').value = data.DATA.GSP.LANT;
             document.getElementById('system-timezone').value = data.DATA.TIMEP.TIMEZ;
             document.getElementById('system-geo').value = data.DATA.GSP.GM;
-            document.getElementById('system-stream').value = data.DATA.SUBSTRNET.SM;
             document.getElementById('NE').checked = data.DATA.EOSD[0].NE === 1;
             document.getElementById('TE').checked = data.DATA.EOSD[0].TE === 1;
             document.getElementById('VE').checked = data.DATA.EOSD[0].VE === 1;
diff --git a/static/templates/devices/system.html b/static/templates/devices/system.html
index adb028b..8b02737 100644
--- a/static/templates/devices/system.html
+++ b/static/templates/devices/system.html
@@ -208,15 +208,6 @@
                         <option value="720A">(МСК+9) Камчатка</option>
                     </select>
                   </div>
-                  <div class="parameters-input">
-                    <label for="system-stream">Формат трансляции</label>
-                    <select name="SUBSTREAMMODE" id="system-stream">
-                      <option value="0">Плавно</option>
-                      <option value="1">Менее качественно, но более плавно</option>
-                      <option value="2">Менее плавно, но более качественно</option>
-                      <option value="3">Качество</option>
-                  </select>
-                </div>
                 <div class="parameters-input">
                   <label for="system-language">Язык системы</label>
                   <select name="LANGUAGE" id="system-language">
@@ -944,7 +935,6 @@ const requestBody = {
       
       const DATEMOD = document.getElementById('system-date').value;
       const TIMEFORMAT = document.getElementById('system-time').value;
-      const SUBSTREAMMODE = document.getElementById('system-stream').value;
       const LANGUAGE = document.getElementById('system-language').value;
       const GEOMOD = document.getElementById('system-geo').value;
       const TIMEZ = document.getElementById('system-timezone').value;
@@ -961,7 +951,6 @@ const requestBody = {
       const requestData = {
         DATEMOD,
         TIMEFORMAT,
-        SUBSTREAMMODE,
         LANGUAGE,
         GEOMOD,
         TIMEZ,