diff --git a/templates/partials/help-modal.html b/templates/partials/help-modal.html
index 2a160a4..9cdc399 100644
--- a/templates/partials/help-modal.html
+++ b/templates/partials/help-modal.html
@@ -37,18 +37,26 @@
 
             <h3>Mode Tab Icons</h3>
             <div class="icon-grid">
-                <div class="icon-item"><span class="icon">&#128223;</span><span class="desc">Pager - POCSAG/FLEX decoder</span></div>
-                <div class="icon-item"><span class="icon">&#128225;</span><span class="desc">433MHz - Sensor decoder</span></div>
-                <div class="icon-item"><span class="icon">&#9889;</span><span class="desc">Meters - Utility meter decoder</span></div>
-                <div class="icon-item"><span class="icon">&#9992;&#65039;</span><span class="desc">Aircraft - ADS-B tracking &amp; history</span></div>
-                <div class="icon-item"><span class="icon">&#128674;</span><span class="desc">Vessels - AIS &amp; VHF DSC distress</span></div>
-                <div class="icon-item"><span class="icon">&#128251;</span><span class="desc">Spy Stations - Number stations database</span></div>
-                <div class="icon-item"><span class="icon">&#128205;</span><span class="desc">APRS - Amateur radio tracking</span></div>
-                <div class="icon-item"><span class="icon">&#128752;&#65039;</span><span class="desc">Satellite - Pass prediction</span></div>
-                <div class="icon-item"><span class="icon">&#128246;</span><span class="desc">WiFi - Network scanner</span></div>
-                <div class="icon-item"><span class="icon">&#128309;</span><span class="desc">Bluetooth - BT/BLE scanner</span></div>
-                <div class="icon-item"><span class="icon">&#128251;</span><span class="desc">Listening Post - SDR scanner</span></div>
-                <div class="icon-item"><span class="icon">&#128269;</span><span class="desc">TSCM - Counter-surveillance</span></div>
+                <div class="icon-item"><span class="icon icon--sm"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><rect x="4" y="5" width="16" height="14" rx="2"/><line x1="8" y1="10" x2="16" y2="10"/><line x1="8" y1="14" x2="12" y2="14"/></svg></span><span class="desc">Pager - POCSAG/FLEX decoder</span></div>
+                <div class="icon-item"><span class="icon icon--sm"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="12" cy="12" r="2"/><path d="M16.24 7.76a6 6 0 0 1 0 8.49m-8.48-.01a6 6 0 0 1 0-8.49"/></svg></span><span class="desc">433MHz - Sensor decoder</span></div>
+                <div class="icon-item"><span class="icon icon--sm"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M22 12h-4l-3 9L9 3l-3 9H2"/></svg></span><span class="desc">Meters - Utility meter decoder</span></div>
+                <div class="icon-item"><span class="icon icon--sm"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M21 16v-2l-8-5V3.5a1.5 1.5 0 0 0-3 0V9l-8 5v2l8-2.5V19l-2 1.5V22l3.5-1 3.5 1v-1.5L13 19v-5.5l8 2.5z"/></svg></span><span class="desc">Aircraft - ADS-B tracking &amp; history</span></div>
+                <div class="icon-item"><span class="icon icon--sm"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M3 18l2 2h14l2-2"/><path d="M5 18v-4a2 2 0 0 1 2-2h10a2 2 0 0 1 2 2v4"/><path d="M12 12V6"/><path d="M12 6l4 3"/></svg></span><span class="desc">Vessels - AIS &amp; VHF DSC distress</span></div>
+                <div class="icon-item"><span class="icon icon--sm"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M20 10c0 6-8 12-8 12s-8-6-8-12a8 8 0 0 1 16 0Z"/><circle cx="12" cy="10" r="3"/></svg></span><span class="desc">APRS - Amateur radio tracking</span></div>
+                <div class="icon-item"><span class="icon icon--sm"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><rect x="3" y="3" width="18" height="18" rx="2"/><path d="M3 9h18"/><path d="M9 21V9"/></svg></span><span class="desc">Listening Post - SDR scanner</span></div>
+                <div class="icon-item"><span class="icon icon--sm"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M4.9 19.1C1 15.2 1 8.8 4.9 4.9"/><circle cx="12" cy="12" r="2"/><path d="M19.1 4.9C23 8.8 23 15.1 19.1 19"/></svg></span><span class="desc">Spy Stations - Number stations database</span></div>
+                <div class="icon-item"><span class="icon icon--sm"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="12" cy="12" r="10"/><circle cx="12" cy="12" r="3"/><path d="M12 2v4m0 12v4M2 12h4m12 0h4"/></svg></span><span class="desc">Meshtastic - LoRa mesh networking</span></div>
+                <div class="icon-item"><span class="icon icon--sm"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="12" cy="12" r="10"/><line x1="2" y1="12" x2="22" y2="12"/><path d="M12 2a15.3 15.3 0 0 1 4 10 15.3 15.3 0 0 1-4 10 15.3 15.3 0 0 1-4-10 15.3 15.3 0 0 1 4-10z"/></svg></span><span class="desc">WebSDR - Remote SDR receivers</span></div>
+                <div class="icon-item"><span class="icon icon--sm"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M2 12h6l3-9 3 18 3-9h5"/></svg></span><span class="desc">SubGHz - Sub-GHz signal analysis</span></div>
+                <div class="icon-item"><span class="icon icon--sm"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M5 12.55a11 11 0 0 1 14.08 0"/><path d="M1.42 9a16 16 0 0 1 21.16 0"/><path d="M8.53 16.11a6 6 0 0 1 6.95 0"/><circle cx="12" cy="20" r="1" fill="currentColor" stroke="none"/></svg></span><span class="desc">WiFi - Network scanner</span></div>
+                <div class="icon-item"><span class="icon icon--sm"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polyline points="6.5 6.5 17.5 17.5 12 22 12 2 17.5 6.5 6.5 17.5"/></svg></span><span class="desc">Bluetooth - BT/BLE scanner</span></div>
+                <div class="icon-item"><span class="icon icon--sm"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="12" cy="10" r="3"/><path d="M12 21.7C17.3 17 20 13 20 10a8 8 0 1 0-16 0c0 3 2.7 7 8 11.7z"/><path d="M9.5 8.5l3 3 2-4-2 4-3 3"/></svg></span><span class="desc">BT Locate - Bluetooth device locator</span></div>
+                <div class="icon-item"><span class="icon icon--sm"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="11" cy="11" r="8"/><line x1="21" y1="21" x2="16.65" y2="16.65"/></svg></span><span class="desc">TSCM - Counter-surveillance</span></div>
+                <div class="icon-item"><span class="icon icon--sm"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M13 7L9 3 5 7l4 4"/><path d="m17 11 4 4-4 4-4-4"/><path d="m8 12 4 4 6-6-4-4-6 6"/><path d="m16 8 3-3"/><path d="M9 21a6 6 0 0 0-6-6"/></svg></span><span class="desc">Satellite - Pass prediction</span></div>
+                <div class="icon-item"><span class="icon icon--sm"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><rect x="3" y="3" width="18" height="18" rx="2"/><circle cx="12" cy="12" r="3"/><path d="M3 9h2"/><path d="M19 9h2"/><path d="M3 15h2"/><path d="M19 15h2"/></svg></span><span class="desc">ISS SSTV - Space station image decoder</span></div>
+                <div class="icon-item"><span class="icon icon--sm"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="12" cy="12" r="10"/><path d="M2 12h20"/><path d="M12 2a15.3 15.3 0 0 1 4 10 15.3 15.3 0 0 1-4 10 15.3 15.3 0 0 1-4-10 15.3 15.3 0 0 1 4-10z"/></svg></span><span class="desc">Weather Sat - NOAA &amp; Meteor imagery</span></div>
+                <div class="icon-item"><span class="icon icon--sm"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><rect x="3" y="3" width="18" height="18" rx="2"/><circle cx="12" cy="12" r="3"/><path d="M16.24 7.76a6 6 0 0 1 0 8.49m-8.48-.01a6 6 0 0 1 0-8.49"/></svg></span><span class="desc">HF SSTV - Shortwave image decoder</span></div>
+                <div class="icon-item"><span class="icon icon--sm"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="12" cy="10" r="3"/><path d="M12 21.7C17.3 17 20 13 20 10a8 8 0 1 0-16 0c0 3 2.7 7 8 11.7z"/></svg></span><span class="desc">GPS - GNSS signal analysis</span></div>
             </div>
         </div>
 
@@ -96,15 +104,6 @@
                 <li>Visual alerts for DISTRESS and URGENCY messages with map markers</li>
             </ul>
 
-            <h3>Spy Stations</h3>
-            <ul class="tip-list">
-                <li>Database of number stations and diplomatic HF networks</li>
-                <li>Browse stations from priyom.org with frequencies and schedules</li>
-                <li>Filter by type (number/diplomatic), country, and mode</li>
-                <li>Famous stations: UVB-76 "The Buzzer", Cuban HM01, Israeli E17z</li>
-                <li>Click "Tune" to listen via Listening Post mode</li>
-            </ul>
-
             <h3>APRS Mode</h3>
             <ul class="tip-list">
                 <li>Decodes APRS (Automatic Packet Reporting System) on VHF</li>
@@ -114,6 +113,50 @@
                 <li>Interactive map shows station positions in real-time</li>
             </ul>
 
+            <h3>Listening Post Mode</h3>
+            <ul class="tip-list">
+                <li>Wideband SDR scanner with spectrum visualization</li>
+                <li>Tune to any frequency supported by your SDR hardware</li>
+                <li>AM/FM/USB/LSB demodulation modes</li>
+                <li>Bookmark frequencies for quick recall</li>
+                <li>Quick tune presets for emergency and marine channels</li>
+            </ul>
+
+            <h3>Spy Stations</h3>
+            <ul class="tip-list">
+                <li>Database of number stations and diplomatic HF networks</li>
+                <li>Browse stations from priyom.org with frequencies and schedules</li>
+                <li>Filter by type (number/diplomatic), country, and mode</li>
+                <li>Famous stations: UVB-76 "The Buzzer", Cuban HM01, Israeli E17z</li>
+                <li>Click "Tune" to listen via Listening Post mode</li>
+            </ul>
+
+            <h3>Meshtastic Mode</h3>
+            <ul class="tip-list">
+                <li>Integrates with Meshtastic LoRa mesh network devices</li>
+                <li>Connect Heltec, T-Beam, RAK, or other compatible devices via USB</li>
+                <li>Real-time message streaming with RSSI and SNR metrics</li>
+                <li>Configure channels with encryption keys</li>
+                <li>View connected nodes and message history</li>
+                <li>Requires: Meshtastic device + <code>pip install meshtastic</code></li>
+            </ul>
+
+            <h3>WebSDR Mode</h3>
+            <ul class="tip-list">
+                <li>Access remote WebSDR receivers around the world</li>
+                <li>Listen to shortwave, amateur, and broadcast stations without local SDR hardware</li>
+                <li>Browse available public WebSDR servers by location and frequency range</li>
+                <li>Useful for monitoring HF bands from different geographic locations</li>
+            </ul>
+
+            <h3>SubGHz Mode</h3>
+            <ul class="tip-list">
+                <li>Analyzes sub-GHz radio signals (common ISM bands: 315, 433, 868, 915 MHz)</li>
+                <li>Captures and decodes wireless remote controls, key fobs, and IoT devices</li>
+                <li>Protocol identification and signal analysis</li>
+                <li>Useful for RF security research and device testing</li>
+            </ul>
+
             <h3>Satellite Mode</h3>
             <ul class="tip-list">
                 <li>Track satellites using TLE (Two-Line Element) data</li>
@@ -122,6 +165,38 @@
                 <li>View next pass predictions with elevation and duration</li>
             </ul>
 
+            <h3>ISS SSTV Mode</h3>
+            <ul class="tip-list">
+                <li>Decodes Slow Scan Television (SSTV) images from the International Space Station</li>
+                <li>Automated ISS pass tracking with Doppler correction on 145.800 MHz</li>
+                <li>Images decoded in real-time using slowrx</li>
+                <li>Gallery view with timestamped decoded images</li>
+            </ul>
+
+            <h3>Weather Sat Mode</h3>
+            <ul class="tip-list">
+                <li>Receives weather satellite imagery from NOAA APT and Meteor M2 LRPT</li>
+                <li>Uses SatDump for satellite signal processing and image decoding</li>
+                <li>Automated pass prediction and scheduling</li>
+                <li>Decoded images displayed in gallery with pass metadata</li>
+            </ul>
+
+            <h3>HF SSTV Mode</h3>
+            <ul class="tip-list">
+                <li>Decodes Slow Scan Television images from HF amateur radio bands</li>
+                <li>Common SSTV frequencies: 14.230 MHz (20m), 7.171 MHz (40m), 3.730 MHz (80m)</li>
+                <li>Supports multiple SSTV modes (Martin, Scottie, Robot, etc.)</li>
+                <li>Real-time image decoding with gallery view</li>
+            </ul>
+
+            <h3>GPS Mode</h3>
+            <ul class="tip-list">
+                <li>GNSS signal analysis and satellite constellation tracking</li>
+                <li>Displays GPS, GLONASS, Galileo, and BeiDou satellite positions</li>
+                <li>Signal strength visualization and fix quality metrics</li>
+                <li>Useful for evaluating GNSS reception and interference</li>
+            </ul>
+
             <h3>WiFi Mode</h3>
             <ul class="tip-list">
                 <li>Requires a WiFi adapter capable of monitor mode</li>
@@ -140,13 +215,12 @@
                 <li>Radar visualization shows device proximity</li>
             </ul>
 
-            <h3>Listening Post Mode</h3>
+            <h3>BT Locate Mode</h3>
             <ul class="tip-list">
-                <li>Wideband SDR scanner with spectrum visualization</li>
-                <li>Tune to any frequency supported by your SDR hardware</li>
-                <li>AM/FM/USB/LSB demodulation modes</li>
-                <li>Bookmark frequencies for quick recall</li>
-                <li>Quick tune presets for emergency and marine channels</li>
+                <li>Locate and track specific Bluetooth devices by signal strength</li>
+                <li>Directional signal strength indicator for physical device finding</li>
+                <li>Detects known tracker signatures (AirTag, Tile, SmartTag)</li>
+                <li>Useful for finding lost devices or detecting unwanted trackers</li>
             </ul>
 
             <h3>TSCM Mode</h3>
@@ -159,16 +233,6 @@
                 <li><em style="color: var(--text-muted);">Note: This feature is in early development</em></li>
             </ul>
 
-            <h3>Meshtastic Mode</h3>
-            <ul class="tip-list">
-                <li>Integrates with Meshtastic LoRa mesh network devices</li>
-                <li>Connect Heltec, T-Beam, RAK, or other compatible devices via USB</li>
-                <li>Real-time message streaming with RSSI and SNR metrics</li>
-                <li>Configure channels with encryption keys</li>
-                <li>View connected nodes and message history</li>
-                <li>Requires: Meshtastic device + <code>pip install meshtastic</code></li>
-            </ul>
-
             <h3>Network Monitor</h3>
             <ul class="tip-list">
                 <li>Aggregates data from multiple remote INTERCEPT agents</li>
@@ -256,10 +320,19 @@
                 <li><strong>Aircraft (ACARS):</strong> Second RTL-SDR, acarsdec</li>
                 <li><strong>Vessels (AIS):</strong> RTL-SDR, AIS-catcher</li>
                 <li><strong>APRS:</strong> RTL-SDR, direwolf or multimon-ng</li>
+                <li><strong>Listening Post:</strong> RTL-SDR or SoapySDR-compatible hardware</li>
+                <li><strong>Spy Stations:</strong> Internet connection (database lookup)</li>
+                <li><strong>Meshtastic:</strong> Meshtastic LoRa device, <code>pip install meshtastic</code></li>
+                <li><strong>WebSDR:</strong> Internet connection (remote receivers)</li>
+                <li><strong>SubGHz:</strong> RTL-SDR or compatible SDR hardware</li>
                 <li><strong>Satellite:</strong> Internet for Celestrak (optional), skyfield</li>
+                <li><strong>ISS SSTV:</strong> RTL-SDR, slowrx</li>
+                <li><strong>Weather Sat:</strong> RTL-SDR, SatDump</li>
+                <li><strong>HF SSTV:</strong> RTL-SDR or SoapySDR-compatible hardware, slowrx</li>
+                <li><strong>GPS:</strong> RTL-SDR or GPS-capable SDR</li>
                 <li><strong>WiFi:</strong> Monitor-mode adapter, aircrack-ng suite</li>
                 <li><strong>Bluetooth:</strong> Bluetooth adapter, bluez (hcitool/bluetoothctl)</li>
-                <li><strong>Listening Post:</strong> RTL-SDR or SoapySDR-compatible hardware</li>
+                <li><strong>BT Locate:</strong> Bluetooth adapter, bluez</li>
                 <li><strong>TSCM:</strong> WiFi adapter, Bluetooth adapter, RTL-SDR (all optional)</li>
                 <li>Run as root/sudo for full hardware access</li>
             </ul>