diff --git a/modules/web/fm95.html b/modules/web/fm95.html
index db1a0c1..e0c77b4 100644
--- a/modules/web/fm95.html
+++ b/modules/web/fm95.html
@@ -6,7 +6,6 @@
 <title>FM95 Processor Status</title>
 <style>
   * { margin: 0; padding: 0; box-sizing: border-box; }
-
   body {
     background: #0a0e1a;
     color: #e0e6f0;
@@ -17,135 +16,81 @@
     align-items: center;
     padding: 30px 16px;
   }
-
-  header {
-    text-align: center;
-    margin-bottom: 32px;
-  }
-
-  header h1 {
-    font-size: 1.6rem;
-    font-weight: 700;
-    letter-spacing: 2px;
-    text-transform: uppercase;
-    color: #7eb8f7;
-  }
-
-  header p {
-    font-size: 0.78rem;
-    color: #4a5a7a;
-    margin-top: 4px;
-    letter-spacing: 1px;
-    text-transform: uppercase;
-  }
-
-  #status-bar {
-    display: flex;
-    align-items: center;
-    gap: 8px;
-    margin-bottom: 28px;
-    font-size: 0.8rem;
-    color: #4a5a7a;
-  }
-
-  #status-dot {
-    width: 9px;
-    height: 9px;
-    border-radius: 50%;
-    background: #444;
-    transition: background 0.3s;
-  }
+  header { text-align: center; margin-bottom: 22px; }
+  header h1 { font-size: 1.5rem; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: #7eb8f7; }
+  header p  { font-size: 0.75rem; color: #4a5a7a; margin-top: 4px; letter-spacing: 1px; text-transform: uppercase; }
+  #status-bar { display: flex; align-items: center; gap: 8px; margin-bottom: 22px; font-size: 0.8rem; color: #4a5a7a; }
+  #status-dot { width: 9px; height: 9px; border-radius: 50%; background: #444; transition: background 0.3s; }
   #status-dot.connecting { background: #f0a500; box-shadow: 0 0 6px #f0a500; }
   #status-dot.connected  { background: #2ecc71; box-shadow: 0 0 6px #2ecc71; }
   #status-dot.error      { background: #e74c3c; box-shadow: 0 0 6px #e74c3c; }
-
   .grid {
     display: grid;
-    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
-    gap: 16px;
+    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
+    gap: 14px;
     width: 100%;
-    max-width: 900px;
+    max-width: 960px;
+    margin-bottom: 20px;
   }
-
   .card {
     background: #111827;
     border: 1px solid #1e2d45;
     border-radius: 12px;
-    padding: 20px 22px;
+    padding: 16px 18px;
     position: relative;
     overflow: hidden;
-    transition: border-color 0.3s;
   }
-  .card:hover { border-color: #2e4a70; }
-
   .card::before {
     content: '';
     position: absolute;
     top: 0; left: 0; right: 0;
     height: 3px;
     background: var(--accent, #7eb8f7);
-    opacity: 0.7;
     border-radius: 12px 12px 0 0;
   }
+  .card-label { font-size: 0.68rem; text-transform: uppercase; letter-spacing: 1.5px; color: #4a6080; margin-bottom: 8px; }
+  .card-value { font-size: 1.8rem; font-weight: 700; color: var(--accent, #7eb8f7); line-height: 1; font-variant-numeric: tabular-nums; }
+  .card-unit  { font-size: 0.8rem; color: #3a5070; margin-left: 3px; font-weight: 400; }
+  .bar-wrap   { margin-top: 10px; background: #0a0e1a; border-radius: 4px; height: 5px; overflow: hidden; }
+  .bar-fill   { height: 100%; border-radius: 4px; background: var(--accent, #7eb8f7); width: 0%; transition: width 0.4s ease; }
+  .card-desc  { font-size: 0.68rem; color: #2e4060; margin-top: 6px; }
 
-  .card-label {
-    font-size: 0.7rem;
-    text-transform: uppercase;
-    letter-spacing: 1.5px;
-    color: #4a6080;
-    margin-bottom: 10px;
+  /* Oscilloscope */
+  .scope-wrap {
+    width: 100%;
+    max-width: 960px;
+    background: #0b1120;
+    border: 1px solid #1e2d45;
+    border-radius: 14px;
+    padding: 16px 18px;
+    margin-bottom: 20px;
+  }
+  .scope-header {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    margin-bottom: 12px;
+  }
+  .scope-title { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 1.5px; color: #4a6080; }
+  .scope-legend { display: flex; gap: 18px; }
+  .scope-legend span { font-size: 0.7rem; display: flex; align-items: center; gap: 5px; }
+  .dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
+  canvas#scope {
+    width: 100%;
+    height: 200px;
+    display: block;
+    border-radius: 6px;
+    background: #060b14;
+    image-rendering: pixelated;
+  }
+  .scope-controls { display: flex; gap: 16px; margin-top: 10px; align-items: center; }
+  .scope-controls label { font-size: 0.72rem; color: #4a6080; }
+  .scope-controls select, .scope-controls input {
+    background: #111827; color: #7eb8f7; border: 1px solid #1e2d45;
+    border-radius: 6px; padding: 3px 8px; font-size: 0.72rem;
   }
 
-  .card-value {
-    font-size: 2rem;
-    font-weight: 700;
-    color: var(--accent, #7eb8f7);
-    line-height: 1;
-    font-variant-numeric: tabular-nums;
-    transition: color 0.3s;
-  }
-
-  .card-unit {
-    font-size: 0.85rem;
-    color: #3a5070;
-    margin-left: 4px;
-    font-weight: 400;
-  }
-
-  .bar-wrap {
-    margin-top: 14px;
-    background: #0a0e1a;
-    border-radius: 4px;
-    height: 6px;
-    overflow: hidden;
-  }
-
-  .bar-fill {
-    height: 100%;
-    border-radius: 4px;
-    background: var(--accent, #7eb8f7);
-    width: 0%;
-    transition: width 0.5s ease, background 0.3s;
-  }
-
-  .card-desc {
-    font-size: 0.7rem;
-    color: #2e4060;
-    margin-top: 8px;
-  }
-
-  #last-update {
-    margin-top: 28px;
-    font-size: 0.72rem;
-    color: #2e4060;
-    letter-spacing: 0.5px;
-  }
-
-  @keyframes pulse {
-    0%, 100% { opacity: 1; }
-    50% { opacity: 0.5; }
-  }
-  .pulse { animation: pulse 1s ease-in-out; }
+  #last-update { font-size: 0.7rem; color: #2e4060; }
 </style>
 </head>
 <body>
@@ -167,28 +112,24 @@
     <div class="bar-wrap"><div class="bar-fill" id="bar_mpx_power"></div></div>
     <div class="card-desc">Multiplex signal power · dBr</div>
   </div>
-
   <div class="card" style="--accent:#34d399">
     <div class="card-label">BS412 Gain</div>
     <div class="card-value" id="bs412_gain">—</div>
     <div class="bar-wrap"><div class="bar-fill" id="bar_bs412_gain"></div></div>
     <div class="card-desc">BS412 loudness gain · linear</div>
   </div>
-
   <div class="card" style="--accent:#fb923c">
     <div class="card-label">AGC Gain</div>
     <div class="card-value" id="agc_gain">—</div>
     <div class="bar-wrap"><div class="bar-fill" id="bar_agc_gain"></div></div>
     <div class="card-desc">Automatic gain control · linear</div>
   </div>
-
   <div class="card" style="--accent:#f472b6">
     <div class="card-label">Input Level</div>
     <div class="card-value" id="input_level">—</div>
     <div class="bar-wrap"><div class="bar-fill" id="bar_input_level"></div></div>
     <div class="card-desc">Incoming signal level · linear raw</div>
   </div>
-
   <div class="card" style="--accent:#38bdf8">
     <div class="card-label">Audio Level</div>
     <div class="card-value" id="audio_level">—</div>
@@ -197,94 +138,225 @@
   </div>
 </div>
 
+<!-- Oscilloscope -->
+<div class="scope-wrap">
+  <div class="scope-header">
+    <div class="scope-title">Oscilloscope — Input &amp; Audio Level</div>
+    <div class="scope-legend">
+      <span><span class="dot" style="background:#f472b6"></span>Input Level</span>
+      <span><span class="dot" style="background:#38bdf8"></span>Audio Level</span>
+    </div>
+  </div>
+  <canvas id="scope"></canvas>
+  <div class="scope-controls">
+    <label>History:
+      <select id="histSel">
+        <option value="100">100 pts</option>
+        <option value="200" selected>200 pts</option>
+        <option value="400">400 pts</option>
+      </select>
+    </label>
+    <label>Y scale:
+      <select id="yscaleSel">
+        <option value="1" selected>0 – 1</option>
+        <option value="2">0 – 2</option>
+        <option value="auto">Auto</option>
+      </select>
+    </label>
+    <label style="margin-left:auto; display:flex; align-items:center; gap:6px;">
+      <input type="checkbox" id="gridCb" checked> Grid
+    </label>
+  </div>
+</div>
+
 <div id="last-update">Waiting for data…</div>
 
 <script>
-  const POLL_MSG = JSON.stringify({ action: "fm95", data: "/w==" });
-  const FIELDS = ['mpx_power','bs412_gain','agc_gain','input_level','audio_level'];
+const POLL_MSG = JSON.stringify({ action: "fm95", data: "/w==" });
+const FIELDS   = ['mpx_power','bs412_gain','agc_gain','input_level','audio_level'];
+const FIELD_CFG = {
+  mpx_power:   { unit:'dB', fmt: v=>v.toFixed(2),  bar: v=>Math.max(0,Math.min(100,((v+40)/40)*100)), warn: v=>v>-1 },
+  bs412_gain:  { unit:'',   fmt: v=>v.toFixed(4),  bar: v=>Math.max(0,Math.min(100,v*50)),             warn: v=>v>1.9 },
+  agc_gain:    { unit:'',   fmt: v=>v.toFixed(4),  bar: v=>Math.max(0,Math.min(100,v*50)),             warn: v=>v>1.9 },
+  input_level: { unit:'',   fmt: v=>v.toFixed(5),  bar: v=>Math.max(0,Math.min(100,v*100)),            warn: v=>v>0.95 },
+  audio_level: { unit:'',   fmt: v=>v.toFixed(5),  bar: v=>Math.max(0,Math.min(100,v*100)),            warn: v=>v>0.95 },
+};
 
-  // Per-field display config: { unit, format, toBar, warnHigh }
-  const FIELD_CFG = {
-    mpx_power:  { unit: 'dB',  fmt: v => v.toFixed(2),                  bar: v => Math.max(0, Math.min(100, ((v + 40) / 40) * 100)), warn: v => v > -1 },
-    bs412_gain: { unit: '',    fmt: v => v.toFixed(4),                  bar: v => Math.max(0, Math.min(100, v * 50)),                 warn: v => v > 1.9, label: 'BS412 Gain', sub: 'linear gain' },
-    agc_gain:   { unit: '',    fmt: v => v.toFixed(4),                  bar: v => Math.max(0, Math.min(100, v * 50)),                 warn: v => v > 1.9, label: 'AGC Gain',   sub: 'linear gain' },
-    input_level:{ unit: '',    fmt: v => v.toFixed(5),                  bar: v => Math.max(0, Math.min(100, v * 100)),                warn: v => v > 0.95 },
-    audio_level:{ unit: '',    fmt: v => v.toFixed(5),                  bar: v => Math.max(0, Math.min(100, v * 100)),                warn: v => v > 0.95 },
-  };
+// --- Oscilloscope state ---
+const MAX_PTS  = 400;
+let histInput  = new Array(MAX_PTS).fill(null);
+let histAudio  = new Array(MAX_PTS).fill(null);
 
-  function decode(b64) {
-    const bin = atob(b64);
-    const buf = new ArrayBuffer(bin.length);
-    const u8  = new Uint8Array(buf);
-    for (let i = 0; i < bin.length; i++) u8[i] = bin.charCodeAt(i);
-    const view = new DataView(buf);
-    // 5 floats, little-endian, 4 bytes each
-    return FIELDS.map((_, i) => view.getFloat32(i * 4, true));
+const canvas   = document.getElementById('scope');
+const ctx      = canvas.getContext('2d');
+const histSel  = document.getElementById('histSel');
+const yscaleSel= document.getElementById('yscaleSel');
+const gridCb   = document.getElementById('gridCb');
+
+function resizeCanvas() {
+  const r = window.devicePixelRatio || 1;
+  const w = canvas.parentElement.clientWidth - 36;
+  canvas.style.width  = w + 'px';
+  canvas.style.height = '200px';
+  canvas.width  = w * r;
+  canvas.height = 200 * r;
+  ctx.scale(r, r);
+}
+resizeCanvas();
+window.addEventListener('resize', () => { ctx.setTransform(1,0,0,1,0,0); resizeCanvas(); drawScope(); });
+
+function drawScope() {
+  const W = canvas.width  / (window.devicePixelRatio || 1);
+  const H = canvas.height / (window.devicePixelRatio || 1);
+  const nPts = parseInt(histSel.value);
+  const yscale = yscaleSel.value;
+  const showGrid = gridCb.checked;
+
+  ctx.clearRect(0, 0, W, H);
+
+  // background
+  ctx.fillStyle = '#060b14';
+  ctx.fillRect(0, 0, W, H);
+
+  // determine y range
+  let yMin = 0, yMax = 1;
+  if (yscale === '2') { yMax = 2; }
+  else if (yscale === 'auto') {
+    const vals = [...histInput, ...histAudio].filter(v => v !== null);
+    if (vals.length) {
+      yMin = Math.min(...vals);
+      yMax = Math.max(...vals);
+      const pad = (yMax - yMin) * 0.1 || 0.05;
+      yMin -= pad; yMax += pad;
+    }
   }
 
-  function updateUI(values) {
-    values.forEach((v, i) => {
-      const key = FIELDS[i];
-      const cfg = FIELD_CFG[key];
-      const el  = document.getElementById(key);
-      const bar = document.getElementById('bar_' + key);
-      el.innerHTML = `${cfg.fmt(v)}${cfg.unit ? `<span class="card-unit">${cfg.unit}</span>` : ''}`;
-      bar.style.width = cfg.bar(v) + '%';
-      bar.style.background = cfg.warn(v) ? '#ef4444' : '';
-    });
-    const now = new Date().toLocaleTimeString();
-    document.getElementById('last-update').textContent = `Last update: ${now}`;
+  const toY = v => H - ((v - yMin) / (yMax - yMin)) * H;
+
+  // grid
+  if (showGrid) {
+    ctx.strokeStyle = 'rgba(255,255,255,0.05)';
+    ctx.lineWidth = 1;
+    const hLines = 5;
+    for (let i = 0; i <= hLines; i++) {
+      const y = (i / hLines) * H;
+      ctx.beginPath(); ctx.moveTo(0, y); ctx.lineTo(W, y); ctx.stroke();
+      const val = yMax - (i / hLines) * (yMax - yMin);
+      ctx.fillStyle = 'rgba(255,255,255,0.25)';
+      ctx.font = '10px monospace';
+      ctx.fillText(val.toFixed(2), 4, y - 3);
+    }
+    const vLines = 8;
+    for (let i = 1; i < vLines; i++) {
+      const x = (i / vLines) * W;
+      ctx.beginPath(); ctx.moveTo(x, 0); ctx.lineTo(x, H); ctx.stroke();
+    }
+    // zero line
+    if (yMin < 0 && yMax > 0) {
+      const y0 = toY(0);
+      ctx.strokeStyle = 'rgba(255,255,255,0.15)';
+      ctx.setLineDash([4,4]);
+      ctx.beginPath(); ctx.moveTo(0, y0); ctx.lineTo(W, y0); ctx.stroke();
+      ctx.setLineDash([]);
+    }
   }
 
-  function setStatus(state, text) {
-    const dot  = document.getElementById('status-dot');
-    const span = document.getElementById('status-text');
-    dot.className = 'status-dot ' + state;
-    dot.id = 'status-dot';
-    dot.classList.add(state);
-    span.textContent = text;
+  // draw series
+  function drawLine(hist, color) {
+    const slice = hist.slice(-nPts);
+    const step  = W / (nPts - 1);
+    ctx.strokeStyle = color;
+    ctx.lineWidth = 1.5;
+    ctx.beginPath();
+    let started = false;
+    for (let i = 0; i < slice.length; i++) {
+      if (slice[i] === null) { started = false; continue; }
+      const x = i * step;
+      const y = toY(slice[i]);
+      if (!started) { ctx.moveTo(x, y); started = true; }
+      else           ctx.lineTo(x, y);
+    }
+    ctx.stroke();
+    // glow
+    ctx.strokeStyle = color + '44';
+    ctx.lineWidth = 4;
+    ctx.stroke();
   }
 
-  let ws, pollTimer;
+  drawLine(histInput, '#f472b6');
+  drawLine(histAudio, '#38bdf8');
+}
 
-  function connect() {
-    setStatus('connecting', 'Connecting…');
+function decode(b64) {
+  const bin = atob(b64);
+  const buf = new ArrayBuffer(bin.length);
+  const u8  = new Uint8Array(buf);
+  for (let i = 0; i < bin.length; i++) u8[i] = bin.charCodeAt(i);
+  const view = new DataView(buf);
+  return FIELDS.map((_, i) => view.getFloat32(i * 4, true));
+}
 
-    ws = new WebSocket("/ws");
+function updateUI(values) {
+  values.forEach((v, i) => {
+    const key = FIELDS[i];
+    const cfg = FIELD_CFG[key];
+    const el  = document.getElementById(key);
+    const bar = document.getElementById('bar_' + key);
+    el.innerHTML = `${cfg.fmt(v)}${cfg.unit ? `<span class="card-unit">${cfg.unit}</span>` : ''}`;
+    bar.style.width      = cfg.bar(v) + '%';
+    bar.style.background = cfg.warn(v) ? '#ef4444' : '';
+  });
 
-    ws.addEventListener('open', () => {
-      setStatus('connected', 'Connected');
-      poll();
-      pollTimer = setInterval(poll, 1000);
-    });
+  // push to oscilloscope history
+  const inputVal = values[3];
+  const audioVal = values[4];
+  histInput.push(inputVal); if (histInput.length > MAX_PTS) histInput.shift();
+  histAudio.push(audioVal); if (histAudio.length > MAX_PTS) histAudio.shift();
+  drawScope();
 
-    ws.addEventListener('message', e => {
-      try {
-        const msg = JSON.parse(e.data);
-        if (msg.event === 'fm95' && msg.data) {
-          updateUI(decode(msg.data));
-        }
-      } catch (err) {
-        console.warn('Parse error', err);
-      }
-    });
+  document.getElementById('last-update').textContent = `Last update: ${new Date().toLocaleTimeString()}`;
+}
 
-    ws.addEventListener('close', () => {
-      clearInterval(pollTimer);
-      setStatus('error', 'Disconnected — retrying in 3 s…');
-      setTimeout(connect, 3000);
-    });
+histSel.addEventListener('change', drawScope);
+yscaleSel.addEventListener('change', drawScope);
+gridCb.addEventListener('change', drawScope);
 
-    ws.addEventListener('error', () => {
-      setStatus('error', 'WebSocket error');
-    });
-  }
+// --- WebSocket ---
+function setStatus(state, text) {
+  const dot = document.getElementById('status-dot');
+  dot.className = '';
+  dot.classList.add(state);
+  document.getElementById('status-text').textContent = text;
+}
 
-  function poll() {
-    if (ws && ws.readyState === WebSocket.OPEN) ws.send(POLL_MSG);
-  }
+let ws, pollTimer;
+function connect() {
+  const proto = location.protocol === 'https:' ? 'wss' : 'ws';
+  ws = new WebSocket(`${proto}://${location.host}/ws`);
+  setStatus('connecting', 'Connecting…');
 
-  connect();
+  ws.addEventListener('open', () => {
+    setStatus('connected', 'Connected');
+    poll();
+    pollTimer = setInterval(poll, 1000);
+  });
+  ws.addEventListener('message', e => {
+    try {
+      const msg = JSON.parse(e.data);
+      if (msg.event === 'fm95' && msg.data) updateUI(decode(msg.data));
+    } catch(err) { console.warn('Parse error', err); }
+  });
+  ws.addEventListener('close', () => {
+    clearInterval(pollTimer);
+    setStatus('error', 'Disconnected — retrying in 3s…');
+    setTimeout(connect, 3000);
+  });
+  ws.addEventListener('error', () => setStatus('error', 'WebSocket error'));
+}
+function poll() { if (ws && ws.readyState === WebSocket.OPEN) ws.send(POLL_MSG); }
+
+connect();
+drawScope();
 </script>
 </body>
 </html>
\ No newline at end of file