ost" id="config" target="iframe">
    <p>Module: </p>
    <label class="custom-select" for="styledSelect1">
    <select name="module" form="config" id="styledSelect1">
       <option value="1">Module 1</option> 
       <option value="2">Module 2</option> 
    </select>
    </label>
    <hr>
    <p>Modulation: </p>
    <label class="custom-select" for="styledSelect1">
    <select name="mod" form="config" id="styledSelect1">
       <option value="0">2-FSK</option> 
       <option value="1">GFSK</option>
     