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Add antenna quick reference guides to all mode sidebar panels
Each SDR mode now includes frequency-specific antenna guidance: - Pager: VHF/UHF dipole info for 153/929 MHz bands - 433 MHz Sensors: quarter-wave ground plane for ISM band - Utility Meters: 912 MHz stock antenna tips and upgrades - APRS: 2m band dipole and commercial options for 144.39 MHz - SSTV: V-dipole for ISS reception at 145.800 MHz - AIS: marine VHF antenna for 162 MHz vessel tracking - Listening Post: wideband discone recommendation with band table - Meshtastic: LoRa 915/868 MHz antenna upgrades and placement - ADS-B: 1090 MHz collinear, commercial options, LNA/placement Each guide includes antenna type, element lengths, placement tips, and a quick reference table with key specs for the mode. https://claude.ai/code/session_01FjLTkyELaqh27U1wEXngFQ
This commit is contained in:
Claude
@@ -223,6 +223,88 @@
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</div>
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</div>
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</div>
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<!-- Antenna Guide Panel -->
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<div class="panel" id="antennaGuidePanel">
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<div class="panel-header" style="cursor: pointer;" onclick="document.getElementById('antennaGuideContent').style.display = document.getElementById('antennaGuideContent').style.display === 'none' ? 'block' : 'none'; this.querySelector('.panel-toggle').textContent = document.getElementById('antennaGuideContent').style.display === 'none' ? '▶' : '▼';">
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<span>ANTENNA GUIDE</span>
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<span class="panel-toggle" style="font-size: 10px; color: var(--text-muted);">▶</span>
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</div>
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<div id="antennaGuideContent" style="display: none; padding: 10px; font-size: 11px; color: var(--text-secondary); line-height: 1.5;">
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<p style="margin-bottom: 8px; color: var(--accent-cyan); font-weight: 600;">
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1090 MHz — stock SDR antenna can work but is not ideal
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</p>
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<div style="background: rgba(0,0,0,0.3); border: 1px solid var(--border-color); border-radius: 4px; padding: 8px; margin-bottom: 8px;">
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<strong style="color: var(--accent-cyan); font-size: 11px;">Stock Telescopic Antenna</strong>
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<ul style="margin: 4px 0 0 14px; padding: 0; font-size: 10px;">
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<li><strong style="color: var(--text-primary);">1090 MHz:</strong> Collapse to ~6.9 cm (quarter-wave). It works for nearby aircraft</li>
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<li><strong style="color: var(--text-primary);">Range:</strong> Expect ~50 NM (90 km) indoors, ~100 NM outdoors</li>
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</ul>
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</div>
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<div style="background: rgba(0,0,0,0.3); border: 1px solid var(--border-color); border-radius: 4px; padding: 8px; margin-bottom: 8px;">
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<strong style="color: #00ff88; font-size: 11px;">Recommended: 1090 MHz Collinear (~$10-20 DIY)</strong>
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<ul style="margin: 4px 0 0 14px; padding: 0; font-size: 10px;">
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<li><strong style="color: var(--text-primary);">Design:</strong> 8 coaxial collinear elements from RG-6 coax cable</li>
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<li><strong style="color: var(--text-primary);">Element length:</strong> ~6.9 cm segments soldered alternating center/shield</li>
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<li><strong style="color: var(--text-primary);">Gain:</strong> ~5–7 dBi omnidirectional, ideal for 360° coverage</li>
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<li><strong style="color: var(--text-primary);">Range:</strong> 150–250+ NM depending on height and LOS</li>
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</ul>
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</div>
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<div style="background: rgba(0,0,0,0.3); border: 1px solid var(--border-color); border-radius: 4px; padding: 8px; margin-bottom: 8px;">
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<strong style="color: var(--accent-cyan); font-size: 11px;">Commercial Options</strong>
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<ul style="margin: 4px 0 0 14px; padding: 0; font-size: 10px;">
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<li><strong style="color: var(--text-primary);">FlightAware antenna:</strong> ~$35, 1090 MHz tuned, 66cm fiberglass whip</li>
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<li><strong style="color: var(--text-primary);">ADSBexchange whip:</strong> ~$40, similar performance</li>
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<li><strong style="color: var(--text-primary);">Jetvision A3:</strong> ~$50, high-gain 1090 MHz collinear</li>
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</ul>
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</div>
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<div style="background: rgba(0,0,0,0.3); border: 1px solid var(--border-color); border-radius: 4px; padding: 8px; margin-bottom: 8px;">
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<strong style="color: var(--accent-cyan); font-size: 11px;">Placement & LNA</strong>
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<ul style="margin: 4px 0 0 14px; padding: 0; font-size: 10px;">
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<li><strong style="color: var(--text-primary);">Location:</strong> OUTDOORS, as high as possible. Roof or mast mount</li>
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<li><strong style="color: var(--text-primary);">Height:</strong> Every 3m higher adds ~10 NM range (line-of-sight)</li>
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<li><strong style="color: var(--text-primary);">LNA:</strong> 1090 MHz filtered LNA at antenna feed (e.g. Uputronics, ~$30)</li>
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<li><strong style="color: var(--text-primary);">Filter:</strong> A 1090 MHz bandpass filter removes cell/FM interference</li>
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<li><strong style="color: var(--text-primary);">Coax:</strong> Keep short. At 1090 MHz, RG-58 loses ~10 dB per 10m</li>
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<li><strong style="color: var(--text-primary);">Bias-T:</strong> Enable Bias-T in controls above if LNA is powered via coax</li>
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</ul>
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</div>
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<div style="background: rgba(0,0,0,0.3); border: 1px solid var(--border-color); border-radius: 4px; padding: 8px;">
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<strong style="color: var(--accent-cyan); font-size: 11px;">Quick Reference</strong>
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<table style="width: 100%; margin-top: 4px; font-size: 10px; border-collapse: collapse;">
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<tr style="border-bottom: 1px solid var(--border-color);">
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<td style="padding: 2px 4px; color: var(--text-dim);">ADS-B frequency</td>
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<td style="padding: 2px 4px; color: var(--text-primary); text-align: right;">1090 MHz</td>
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</tr>
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<tr style="border-bottom: 1px solid var(--border-color);">
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<td style="padding: 2px 4px; color: var(--text-dim);">Quarter-wave length</td>
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<td style="padding: 2px 4px; color: var(--text-primary); text-align: right;">6.9 cm</td>
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</tr>
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<tr style="border-bottom: 1px solid var(--border-color);">
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<td style="padding: 2px 4px; color: var(--text-dim);">Modulation</td>
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<td style="padding: 2px 4px; color: var(--text-primary); text-align: right;">PPM (pulse)</td>
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</tr>
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<tr style="border-bottom: 1px solid var(--border-color);">
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<td style="padding: 2px 4px; color: var(--text-dim);">Polarization</td>
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<td style="padding: 2px 4px; color: var(--text-primary); text-align: right;">Vertical</td>
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</tr>
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<tr style="border-bottom: 1px solid var(--border-color);">
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<td style="padding: 2px 4px; color: var(--text-dim);">Bandwidth</td>
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<td style="padding: 2px 4px; color: var(--text-primary); text-align: right;">~2 MHz</td>
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</tr>
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<tr>
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<td style="padding: 2px 4px; color: var(--text-dim);">Typical range (outdoor)</td>
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<td style="padding: 2px 4px; color: var(--text-primary); text-align: right;">100–250 NM</td>
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</tr>
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</table>
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</div>
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</div>
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</div>
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</div>
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<!-- Controls Bar - Reorganized -->
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@@ -26,6 +26,75 @@
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</div>
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</div>
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<!-- Antenna Guide -->
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<div class="section">
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<h3>Antenna Guide</h3>
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<div style="font-size: 11px; color: var(--text-dim); line-height: 1.5;">
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<p style="margin-bottom: 8px; color: var(--accent-cyan); font-weight: 600;">
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Marine VHF band (162 MHz) — stock SDR antenna will NOT work well
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</p>
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<div style="background: var(--bg-primary); border: 1px solid var(--border-color); border-radius: 4px; padding: 10px; margin-bottom: 10px;">
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<strong style="color: var(--accent-cyan); font-size: 12px;">Simple Dipole (Cheapest)</strong>
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<ul style="margin: 6px 0 0 14px; padding: 0;">
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<li><strong style="color: var(--text-primary);">Element length:</strong> ~46 cm each (quarter-wave at 162 MHz)</li>
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<li><strong style="color: var(--text-primary);">Material:</strong> Wire, coat hanger, or copper rod</li>
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<li><strong style="color: var(--text-primary);">Orientation:</strong> Vertical (AIS is vertically polarized)</li>
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<li><strong style="color: var(--text-primary);">Placement:</strong> As high as possible with clear view of the water/harbor</li>
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</ul>
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</div>
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<div style="background: var(--bg-primary); border: 1px solid var(--border-color); border-radius: 4px; padding: 10px; margin-bottom: 10px;">
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<strong style="color: var(--accent-cyan); font-size: 12px;">Commercial Options</strong>
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<ul style="margin: 6px 0 0 14px; padding: 0;">
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<li><strong style="color: var(--text-primary);">Marine VHF whip:</strong> ~$20–50, designed for 156–163 MHz band</li>
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<li><strong style="color: var(--text-primary);">Discone:</strong> ~$30–50, wideband coverage including marine VHF</li>
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<li><strong style="color: var(--text-primary);">Collinear:</strong> Higher gain (~6 dBi), best for coastal monitoring</li>
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</ul>
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</div>
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<div style="background: var(--bg-primary); border: 1px solid var(--border-color); border-radius: 4px; padding: 10px; margin-bottom: 10px;">
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<strong style="color: var(--accent-cyan); font-size: 12px;">Placement Tips</strong>
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<ul style="margin: 6px 0 0 14px; padding: 0;">
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<li><strong style="color: var(--text-primary);">Height is critical:</strong> AIS is line-of-sight. Roof or mast mount is ideal</li>
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<li><strong style="color: var(--text-primary);">Range:</strong> At 10m height, expect ~25 NM (46 km) range over water</li>
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<li><strong style="color: var(--text-primary);">LNA:</strong> Nooelec Lana or similar broadband LNA, mount at antenna</li>
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<li><strong style="color: var(--text-primary);">Coax:</strong> Keep cable short. RG-58 loses ~4 dB per 10m at 162 MHz</li>
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</ul>
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</div>
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<div style="background: var(--bg-primary); border: 1px solid var(--border-color); border-radius: 4px; padding: 10px;">
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<strong style="color: var(--accent-cyan); font-size: 12px;">Quick Reference</strong>
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<table style="width: 100%; margin-top: 6px; font-size: 10px; border-collapse: collapse;">
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<tr style="border-bottom: 1px solid var(--border-color);">
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<td style="padding: 3px 4px; color: var(--text-dim);">AIS Channel A</td>
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<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">161.975 MHz</td>
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</tr>
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<tr style="border-bottom: 1px solid var(--border-color);">
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<td style="padding: 3px 4px; color: var(--text-dim);">AIS Channel B</td>
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<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">162.025 MHz</td>
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</tr>
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<tr style="border-bottom: 1px solid var(--border-color);">
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<td style="padding: 3px 4px; color: var(--text-dim);">Quarter-wave length</td>
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<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">46 cm</td>
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</tr>
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<tr style="border-bottom: 1px solid var(--border-color);">
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<td style="padding: 3px 4px; color: var(--text-dim);">Modulation</td>
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<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">GMSK 9600 baud</td>
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</tr>
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<tr style="border-bottom: 1px solid var(--border-color);">
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<td style="padding: 3px 4px; color: var(--text-dim);">Bandwidth</td>
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<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">25 kHz</td>
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</tr>
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<tr>
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<td style="padding: 3px 4px; color: var(--text-dim);">Polarization</td>
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<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">Vertical</td>
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</tr>
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</table>
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</div>
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</div>
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</div>
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<button class="run-btn" id="startAisBtn" onclick="startAisTracking()">
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Start AIS Tracking
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</button>
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@@ -13,4 +13,59 @@
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<span style="color: var(--accent-cyan);">Controls in function bar above map</span>
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</div>
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</div>
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<!-- Antenna Guide -->
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<div class="section">
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<h3>Antenna Guide</h3>
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<div style="font-size: 11px; color: var(--text-dim); line-height: 1.5;">
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<p style="margin-bottom: 8px; color: var(--accent-cyan); font-weight: 600;">
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2m band (144–148 MHz) — stock SDR antenna will NOT work
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</p>
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<div style="background: var(--bg-primary); border: 1px solid var(--border-color); border-radius: 4px; padding: 10px; margin-bottom: 10px;">
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<strong style="color: var(--accent-cyan); font-size: 12px;">Simple Dipole (Easiest)</strong>
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<ul style="margin: 6px 0 0 14px; padding: 0;">
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<li><strong style="color: var(--text-primary);">Element length:</strong> ~51.5 cm each (quarter-wave at 144.39 MHz)</li>
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<li><strong style="color: var(--text-primary);">Material:</strong> Wire, coat hanger, or copper rod</li>
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<li><strong style="color: var(--text-primary);">Orientation:</strong> Vertical (APRS is FM, vertically polarized)</li>
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<li><strong style="color: var(--text-primary);">Connection:</strong> Center conductor to one element, shield to the other</li>
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</ul>
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</div>
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<div style="background: var(--bg-primary); border: 1px solid var(--border-color); border-radius: 4px; padding: 10px; margin-bottom: 10px;">
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<strong style="color: var(--accent-cyan); font-size: 12px;">Commercial Options</strong>
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<ul style="margin: 6px 0 0 14px; padding: 0;">
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<li><strong style="color: var(--text-primary);">Mag-mount 2m whip:</strong> ~$15–25, good mobile/portable option</li>
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<li><strong style="color: var(--text-primary);">2m/70cm dual-band:</strong> ~$20–40, also covers 70cm ham band</li>
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<li><strong style="color: var(--text-primary);">Discone:</strong> ~$30–50, wideband but lower gain on 2m</li>
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</ul>
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</div>
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<div style="background: var(--bg-primary); border: 1px solid var(--border-color); border-radius: 4px; padding: 10px;">
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<strong style="color: var(--accent-cyan); font-size: 12px;">Quick Reference</strong>
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<table style="width: 100%; margin-top: 6px; font-size: 10px; border-collapse: collapse;">
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<tr style="border-bottom: 1px solid var(--border-color);">
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<td style="padding: 3px 4px; color: var(--text-dim);">APRS freq (N. America)</td>
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<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">144.390 MHz</td>
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</tr>
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<tr style="border-bottom: 1px solid var(--border-color);">
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<td style="padding: 3px 4px; color: var(--text-dim);">APRS freq (Europe)</td>
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<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">144.800 MHz</td>
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</tr>
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<tr style="border-bottom: 1px solid var(--border-color);">
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<td style="padding: 3px 4px; color: var(--text-dim);">Quarter-wave length</td>
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<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">51.5 cm</td>
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</tr>
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<tr style="border-bottom: 1px solid var(--border-color);">
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<td style="padding: 3px 4px; color: var(--text-dim);">Modulation</td>
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<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">FM 1200 baud</td>
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</tr>
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<tr>
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<td style="padding: 3px 4px; color: var(--text-dim);">Polarization</td>
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<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">Vertical</td>
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</tr>
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</table>
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</div>
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</div>
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</div>
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</div>
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@@ -46,4 +46,76 @@
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</div>
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</div>
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<!-- Antenna Guide -->
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<div class="section">
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<h3>Antenna Guide</h3>
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<div style="font-size: 11px; color: var(--text-dim); line-height: 1.5;">
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<p style="margin-bottom: 8px; color: var(--accent-cyan); font-weight: 600;">
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Wideband listening — antenna choice depends on your target frequency
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</p>
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<div style="background: var(--bg-primary); border: 1px solid var(--border-color); border-radius: 4px; padding: 10px; margin-bottom: 10px;">
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<strong style="color: var(--accent-cyan); font-size: 12px;">Stock Telescopic Antenna</strong>
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<ul style="margin: 6px 0 0 14px; padding: 0;">
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<li><strong style="color: var(--text-primary);">Best range:</strong> 800 MHz–1.2 GHz (tuned near 1 GHz)</li>
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<li><strong style="color: var(--text-primary);">Usable for:</strong> Airband, trunked radio, cell bands</li>
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<li><strong style="color: var(--text-primary);">Poor below:</strong> ~400 MHz (too short for VHF/lower UHF)</li>
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</ul>
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</div>
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<div style="background: var(--bg-primary); border: 1px solid var(--border-color); border-radius: 4px; padding: 10px; margin-bottom: 10px;">
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<strong style="color: #00ff88; font-size: 12px;">Discone (Best All-rounder — ~$30-50)</strong>
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<ul style="margin: 6px 0 0 14px; padding: 0;">
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<li><strong style="color: var(--text-primary);">Coverage:</strong> ~25 MHz to 1.3 GHz continuous</li>
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<li><strong style="color: var(--text-primary);">Gain:</strong> ~2 dBi (modest but consistent across bands)</li>
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<li><strong style="color: var(--text-primary);">Polarization:</strong> Vertical omnidirectional</li>
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<li><strong style="color: var(--text-primary);">Placement:</strong> Outdoors, as high as possible</li>
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</ul>
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<p style="margin-top: 6px; color: var(--text-dim); font-style: italic;">
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Ideal for scanning — covers VHF, UHF, airband, marine, public safety, and more in one antenna.
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</p>
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</div>
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<div style="background: var(--bg-primary); border: 1px solid var(--border-color); border-radius: 4px; padding: 10px; margin-bottom: 10px;">
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<strong style="color: var(--accent-cyan); font-size: 12px;">Tuned Antenna (Best for One Band)</strong>
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<ul style="margin: 6px 0 0 14px; padding: 0;">
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<li><strong style="color: var(--text-primary);">Formula:</strong> Element length (cm) = 7500 / frequency (MHz)</li>
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<li><strong style="color: var(--text-primary);">Example:</strong> 155 MHz police → 48.4 cm per element dipole</li>
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<li><strong style="color: var(--text-primary);">Example:</strong> 460 MHz UHF → 16.3 cm per element dipole</li>
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<li><strong style="color: var(--text-primary);">Higher gain:</strong> ~3–5 dBi better than discone on target freq</li>
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</ul>
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</div>
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<div style="background: var(--bg-primary); border: 1px solid var(--border-color); border-radius: 4px; padding: 10px;">
|
||||
<strong style="color: var(--accent-cyan); font-size: 12px;">Quick Reference</strong>
|
||||
<table style="width: 100%; margin-top: 6px; font-size: 10px; border-collapse: collapse;">
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||||
<tr style="border-bottom: 1px solid var(--border-color);">
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<td style="padding: 3px 4px; color: var(--text-dim);">RTL-SDR range</td>
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<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">24–1766 MHz</td>
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</tr>
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<tr style="border-bottom: 1px solid var(--border-color);">
|
||||
<td style="padding: 3px 4px; color: var(--text-dim);">VHF low band</td>
|
||||
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">30–88 MHz</td>
|
||||
</tr>
|
||||
<tr style="border-bottom: 1px solid var(--border-color);">
|
||||
<td style="padding: 3px 4px; color: var(--text-dim);">VHF high band</td>
|
||||
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">136–174 MHz</td>
|
||||
</tr>
|
||||
<tr style="border-bottom: 1px solid var(--border-color);">
|
||||
<td style="padding: 3px 4px; color: var(--text-dim);">UHF band</td>
|
||||
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">400–520 MHz</td>
|
||||
</tr>
|
||||
<tr style="border-bottom: 1px solid var(--border-color);">
|
||||
<td style="padding: 3px 4px; color: var(--text-dim);">Airband (AM)</td>
|
||||
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">118–137 MHz</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td style="padding: 3px 4px; color: var(--text-dim);">λ/4 formula</td>
|
||||
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">7500 / MHz cm</td>
|
||||
</tr>
|
||||
</table>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
</div>
|
||||
|
||||
@@ -55,6 +55,74 @@
|
||||
</a>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<!-- Antenna Guide -->
|
||||
<div class="section">
|
||||
<h3>Antenna Guide</h3>
|
||||
<div style="font-size: 11px; color: var(--text-dim); line-height: 1.5;">
|
||||
<p style="margin-bottom: 8px; color: var(--accent-cyan); font-weight: 600;">
|
||||
LoRa ISM band — frequency depends on region
|
||||
</p>
|
||||
|
||||
<div style="background: var(--bg-primary); border: 1px solid var(--border-color); border-radius: 4px; padding: 10px; margin-bottom: 10px;">
|
||||
<strong style="color: var(--accent-cyan); font-size: 12px;">Stock Device Antenna</strong>
|
||||
<ul style="margin: 6px 0 0 14px; padding: 0;">
|
||||
<li><strong style="color: var(--text-primary);">Most devices:</strong> Ship with a small 915/868 MHz stubby antenna</li>
|
||||
<li><strong style="color: var(--text-primary);">Works for:</strong> Short range (< 1 km) urban, indoor testing</li>
|
||||
<li><strong style="color: var(--text-primary);">Upgrade:</strong> Replace with tuned antenna for 5–20x range improvement</li>
|
||||
</ul>
|
||||
</div>
|
||||
|
||||
<div style="background: var(--bg-primary); border: 1px solid var(--border-color); border-radius: 4px; padding: 10px; margin-bottom: 10px;">
|
||||
<strong style="color: #00ff88; font-size: 12px;">Recommended Upgrades</strong>
|
||||
<ul style="margin: 6px 0 0 14px; padding: 0;">
|
||||
<li><strong style="color: var(--text-primary);">Whip antenna:</strong> ~$8–15, tuned 915/868 MHz, SMA connector</li>
|
||||
<li><strong style="color: var(--text-primary);">Ground plane:</strong> 8.2 cm vertical + 4 radials (915 MHz) on SMA</li>
|
||||
<li><strong style="color: var(--text-primary);">Yagi:</strong> ~$15–30, directional, great for point-to-point links</li>
|
||||
<li><strong style="color: var(--text-primary);">Collinear:</strong> ~$20–40, omnidirectional with higher gain (~5–8 dBi)</li>
|
||||
</ul>
|
||||
</div>
|
||||
|
||||
<div style="background: var(--bg-primary); border: 1px solid var(--border-color); border-radius: 4px; padding: 10px; margin-bottom: 10px;">
|
||||
<strong style="color: var(--accent-cyan); font-size: 12px;">Placement Tips</strong>
|
||||
<ul style="margin: 6px 0 0 14px; padding: 0;">
|
||||
<li><strong style="color: var(--text-primary);">Height wins:</strong> Elevating antenna 10m can double or triple range</li>
|
||||
<li><strong style="color: var(--text-primary);">Line of sight:</strong> LoRa works best with clear LOS to other nodes</li>
|
||||
<li><strong style="color: var(--text-primary);">Connector:</strong> Most devices use SMA or RP-SMA — check before buying</li>
|
||||
</ul>
|
||||
</div>
|
||||
|
||||
<div style="background: var(--bg-primary); border: 1px solid var(--border-color); border-radius: 4px; padding: 10px;">
|
||||
<strong style="color: var(--accent-cyan); font-size: 12px;">Quick Reference</strong>
|
||||
<table style="width: 100%; margin-top: 6px; font-size: 10px; border-collapse: collapse;">
|
||||
<tr style="border-bottom: 1px solid var(--border-color);">
|
||||
<td style="padding: 3px 4px; color: var(--text-dim);">US / Americas</td>
|
||||
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">915 MHz</td>
|
||||
</tr>
|
||||
<tr style="border-bottom: 1px solid var(--border-color);">
|
||||
<td style="padding: 3px 4px; color: var(--text-dim);">EU / UK / India</td>
|
||||
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">868 MHz</td>
|
||||
</tr>
|
||||
<tr style="border-bottom: 1px solid var(--border-color);">
|
||||
<td style="padding: 3px 4px; color: var(--text-dim);">915 MHz λ/4</td>
|
||||
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">8.2 cm</td>
|
||||
</tr>
|
||||
<tr style="border-bottom: 1px solid var(--border-color);">
|
||||
<td style="padding: 3px 4px; color: var(--text-dim);">868 MHz λ/4</td>
|
||||
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">8.6 cm</td>
|
||||
</tr>
|
||||
<tr style="border-bottom: 1px solid var(--border-color);">
|
||||
<td style="padding: 3px 4px; color: var(--text-dim);">Modulation</td>
|
||||
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">LoRa (CSS)</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td style="padding: 3px 4px; color: var(--text-dim);">Typical range</td>
|
||||
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">1–15 km</td>
|
||||
</tr>
|
||||
</table>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
|
||||
@@ -75,6 +75,62 @@
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<!-- Antenna Guide -->
|
||||
<div class="section">
|
||||
<h3>Antenna Guide</h3>
|
||||
<div style="font-size: 11px; color: var(--text-dim); line-height: 1.5;">
|
||||
<p style="margin-bottom: 8px; color: var(--accent-cyan); font-weight: 600;">
|
||||
Pager frequencies vary by region (130–930 MHz)
|
||||
</p>
|
||||
|
||||
<div style="background: var(--bg-primary); border: 1px solid var(--border-color); border-radius: 4px; padding: 10px; margin-bottom: 10px;">
|
||||
<strong style="color: var(--accent-cyan); font-size: 12px;">Stock Telescopic Antenna</strong>
|
||||
<ul style="margin: 6px 0 0 14px; padding: 0;">
|
||||
<li><strong style="color: var(--text-primary);">Works for:</strong> UHF pager bands (~900 MHz) — the stock antenna is tuned near 1 GHz</li>
|
||||
<li><strong style="color: var(--text-primary);">Extend to:</strong> ~8 cm for 929 MHz (quarter-wave)</li>
|
||||
<li><strong style="color: var(--text-primary);">For VHF (~150 MHz):</strong> Stock antenna is too short. Build a dipole (see below)</li>
|
||||
</ul>
|
||||
</div>
|
||||
|
||||
<div style="background: var(--bg-primary); border: 1px solid var(--border-color); border-radius: 4px; padding: 10px; margin-bottom: 10px;">
|
||||
<strong style="color: var(--accent-cyan); font-size: 12px;">Simple Dipole (Best for VHF Pagers)</strong>
|
||||
<ul style="margin: 6px 0 0 14px; padding: 0;">
|
||||
<li><strong style="color: var(--text-primary);">For 153 MHz:</strong> Two elements, each ~49 cm (quarter-wave)</li>
|
||||
<li><strong style="color: var(--text-primary);">For 929 MHz:</strong> Two elements, each ~8 cm</li>
|
||||
<li><strong style="color: var(--text-primary);">Formula:</strong> Element length (cm) = 7500 / frequency (MHz)</li>
|
||||
<li><strong style="color: var(--text-primary);">Material:</strong> Any wire, coat hanger, or copper rod</li>
|
||||
<li><strong style="color: var(--text-primary);">Orientation:</strong> Vertical (pager signals are vertically polarized)</li>
|
||||
</ul>
|
||||
</div>
|
||||
|
||||
<div style="background: var(--bg-primary); border: 1px solid var(--border-color); border-radius: 4px; padding: 10px;">
|
||||
<strong style="color: var(--accent-cyan); font-size: 12px;">Quick Reference</strong>
|
||||
<table style="width: 100%; margin-top: 6px; font-size: 10px; border-collapse: collapse;">
|
||||
<tr style="border-bottom: 1px solid var(--border-color);">
|
||||
<td style="padding: 3px 4px; color: var(--text-dim);">Common UHF freq</td>
|
||||
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">929 MHz</td>
|
||||
</tr>
|
||||
<tr style="border-bottom: 1px solid var(--border-color);">
|
||||
<td style="padding: 3px 4px; color: var(--text-dim);">Common VHF freq</td>
|
||||
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">153.350 MHz</td>
|
||||
</tr>
|
||||
<tr style="border-bottom: 1px solid var(--border-color);">
|
||||
<td style="padding: 3px 4px; color: var(--text-dim);">Modulation</td>
|
||||
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">FM (NFM)</td>
|
||||
</tr>
|
||||
<tr style="border-bottom: 1px solid var(--border-color);">
|
||||
<td style="padding: 3px 4px; color: var(--text-dim);">Bandwidth</td>
|
||||
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">~12.5 kHz</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td style="padding: 3px 4px; color: var(--text-dim);">Polarization</td>
|
||||
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">Vertical</td>
|
||||
</tr>
|
||||
</table>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<button class="run-btn" id="startBtn" onclick="startDecoding()">
|
||||
Start Decoding
|
||||
</button>
|
||||
|
||||
@@ -58,6 +58,59 @@
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<!-- Antenna Guide -->
|
||||
<div class="section">
|
||||
<h3>Antenna Guide</h3>
|
||||
<div style="font-size: 11px; color: var(--text-dim); line-height: 1.5;">
|
||||
<p style="margin-bottom: 8px; color: var(--accent-cyan); font-weight: 600;">
|
||||
ISM 900 MHz band — stock antenna is close but not optimal
|
||||
</p>
|
||||
|
||||
<div style="background: var(--bg-primary); border: 1px solid var(--border-color); border-radius: 4px; padding: 10px; margin-bottom: 10px;">
|
||||
<strong style="color: var(--accent-cyan); font-size: 12px;">Stock Telescopic Antenna</strong>
|
||||
<ul style="margin: 6px 0 0 14px; padding: 0;">
|
||||
<li><strong style="color: var(--text-primary);">912 MHz:</strong> Extend to ~8.2 cm (quarter-wave). The stock antenna is close enough to work</li>
|
||||
<li><strong style="color: var(--text-primary);">Range:</strong> Most meters transmit at ~100 mW, expect 50–200 m range with stock antenna</li>
|
||||
</ul>
|
||||
</div>
|
||||
|
||||
<div style="background: var(--bg-primary); border: 1px solid var(--border-color); border-radius: 4px; padding: 10px; margin-bottom: 10px;">
|
||||
<strong style="color: var(--accent-cyan); font-size: 12px;">Upgraded Options</strong>
|
||||
<ul style="margin: 6px 0 0 14px; padding: 0;">
|
||||
<li><strong style="color: var(--text-primary);">Ground Plane:</strong> 8.2 cm vertical + four 8.2 cm radials at 45° on SMA connector</li>
|
||||
<li><strong style="color: var(--text-primary);">Yagi:</strong> Directional for targeting specific meters at distance (~$15–25)</li>
|
||||
<li><strong style="color: var(--text-primary);">Placement:</strong> Near a window facing the meters. Line-of-sight matters most</li>
|
||||
</ul>
|
||||
</div>
|
||||
|
||||
<div style="background: var(--bg-primary); border: 1px solid var(--border-color); border-radius: 4px; padding: 10px;">
|
||||
<strong style="color: var(--accent-cyan); font-size: 12px;">Quick Reference</strong>
|
||||
<table style="width: 100%; margin-top: 6px; font-size: 10px; border-collapse: collapse;">
|
||||
<tr style="border-bottom: 1px solid var(--border-color);">
|
||||
<td style="padding: 3px 4px; color: var(--text-dim);">Frequency (NA)</td>
|
||||
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">912 MHz</td>
|
||||
</tr>
|
||||
<tr style="border-bottom: 1px solid var(--border-color);">
|
||||
<td style="padding: 3px 4px; color: var(--text-dim);">Frequency (EU)</td>
|
||||
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">868 MHz</td>
|
||||
</tr>
|
||||
<tr style="border-bottom: 1px solid var(--border-color);">
|
||||
<td style="padding: 3px 4px; color: var(--text-dim);">912 MHz λ/4</td>
|
||||
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">8.2 cm</td>
|
||||
</tr>
|
||||
<tr style="border-bottom: 1px solid var(--border-color);">
|
||||
<td style="padding: 3px 4px; color: var(--text-dim);">Meter TX power</td>
|
||||
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">~100 mW</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td style="padding: 3px 4px; color: var(--text-dim);">Polarization</td>
|
||||
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">Vertical</td>
|
||||
</tr>
|
||||
</table>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<button class="run-btn" id="startRtlamrBtn" onclick="startRtlamrDecoding()">
|
||||
Start Listening
|
||||
</button>
|
||||
|
||||
@@ -39,6 +39,61 @@
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<!-- Antenna Guide -->
|
||||
<div class="section">
|
||||
<h3>Antenna Guide</h3>
|
||||
<div style="font-size: 11px; color: var(--text-dim); line-height: 1.5;">
|
||||
<p style="margin-bottom: 8px; color: var(--accent-cyan); font-weight: 600;">
|
||||
ISM band devices (433 / 868 / 915 MHz)
|
||||
</p>
|
||||
|
||||
<div style="background: var(--bg-primary); border: 1px solid var(--border-color); border-radius: 4px; padding: 10px; margin-bottom: 10px;">
|
||||
<strong style="color: var(--accent-cyan); font-size: 12px;">Stock Telescopic Antenna</strong>
|
||||
<ul style="margin: 6px 0 0 14px; padding: 0;">
|
||||
<li><strong style="color: var(--text-primary);">433 MHz:</strong> Extend to ~17 cm (quarter-wave). Stock antenna works but isn't ideal</li>
|
||||
<li><strong style="color: var(--text-primary);">868/915 MHz:</strong> Extend to ~8 cm. Stock antenna is nearly tuned for this</li>
|
||||
</ul>
|
||||
</div>
|
||||
|
||||
<div style="background: var(--bg-primary); border: 1px solid var(--border-color); border-radius: 4px; padding: 10px; margin-bottom: 10px;">
|
||||
<strong style="color: var(--accent-cyan); font-size: 12px;">Quarter-Wave Ground Plane (Best)</strong>
|
||||
<ul style="margin: 6px 0 0 14px; padding: 0;">
|
||||
<li><strong style="color: var(--text-primary);">433 MHz:</strong> Vertical element 17.3 cm + four 17.3 cm radials at 45°</li>
|
||||
<li><strong style="color: var(--text-primary);">868 MHz:</strong> Vertical element 8.6 cm + four 8.6 cm radials</li>
|
||||
<li><strong style="color: var(--text-primary);">915 MHz:</strong> Vertical element 8.2 cm + four 8.2 cm radials</li>
|
||||
<li><strong style="color: var(--text-primary);">Material:</strong> Stiff copper wire soldered to an SMA connector</li>
|
||||
<li><strong style="color: var(--text-primary);">Placement:</strong> Outdoors or near a window. Higher is better for range</li>
|
||||
</ul>
|
||||
</div>
|
||||
|
||||
<div style="background: var(--bg-primary); border: 1px solid var(--border-color); border-radius: 4px; padding: 10px;">
|
||||
<strong style="color: var(--accent-cyan); font-size: 12px;">Quick Reference</strong>
|
||||
<table style="width: 100%; margin-top: 6px; font-size: 10px; border-collapse: collapse;">
|
||||
<tr style="border-bottom: 1px solid var(--border-color);">
|
||||
<td style="padding: 3px 4px; color: var(--text-dim);">433 MHz λ/4</td>
|
||||
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">17.3 cm</td>
|
||||
</tr>
|
||||
<tr style="border-bottom: 1px solid var(--border-color);">
|
||||
<td style="padding: 3px 4px; color: var(--text-dim);">868 MHz λ/4</td>
|
||||
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">8.6 cm</td>
|
||||
</tr>
|
||||
<tr style="border-bottom: 1px solid var(--border-color);">
|
||||
<td style="padding: 3px 4px; color: var(--text-dim);">915 MHz λ/4</td>
|
||||
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">8.2 cm</td>
|
||||
</tr>
|
||||
<tr style="border-bottom: 1px solid var(--border-color);">
|
||||
<td style="padding: 3px 4px; color: var(--text-dim);">Typical range</td>
|
||||
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">50–300 m</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td style="padding: 3px 4px; color: var(--text-dim);">Polarization</td>
|
||||
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">Vertical</td>
|
||||
</tr>
|
||||
</table>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<button class="run-btn" id="startSensorBtn" onclick="startSensorDecoding()">
|
||||
Start Listening
|
||||
</button>
|
||||
|
||||
@@ -39,4 +39,64 @@
|
||||
Common modes: PD120, PD180, Martin1, Scottie1
|
||||
</p>
|
||||
</div>
|
||||
|
||||
<!-- Antenna Guide -->
|
||||
<div class="section">
|
||||
<h3>Antenna Guide</h3>
|
||||
<div style="font-size: 11px; color: var(--text-dim); line-height: 1.5;">
|
||||
<p style="margin-bottom: 8px; color: var(--accent-cyan); font-weight: 600;">
|
||||
2m band (145.800 MHz) — stock SDR antenna will NOT work
|
||||
</p>
|
||||
|
||||
<div style="background: var(--bg-primary); border: 1px solid var(--border-color); border-radius: 4px; padding: 10px; margin-bottom: 10px;">
|
||||
<strong style="color: var(--accent-cyan); font-size: 12px;">V-Dipole (Easiest — ~$5)</strong>
|
||||
<ul style="margin: 6px 0 0 14px; padding: 0;">
|
||||
<li><strong style="color: var(--text-primary);">Element length:</strong> ~51 cm each (quarter-wave at 145.8 MHz)</li>
|
||||
<li><strong style="color: var(--text-primary);">Angle:</strong> 120° between elements for partial RHCP</li>
|
||||
<li><strong style="color: var(--text-primary);">Orientation:</strong> Lay flat, angled toward the ISS pass direction</li>
|
||||
<li><strong style="color: var(--text-primary);">Material:</strong> Wire, coat hanger, or copper rod</li>
|
||||
</ul>
|
||||
<p style="margin-top: 6px; color: var(--text-dim); font-style: italic;">
|
||||
Same antenna as weather satellites (similar frequency). A QFH or turnstile for 137 MHz also works well here.
|
||||
</p>
|
||||
</div>
|
||||
|
||||
<div style="background: var(--bg-primary); border: 1px solid var(--border-color); border-radius: 4px; padding: 10px; margin-bottom: 10px;">
|
||||
<strong style="color: var(--accent-cyan); font-size: 12px;">Tips for ISS Reception</strong>
|
||||
<ul style="margin: 6px 0 0 14px; padding: 0;">
|
||||
<li><strong style="color: var(--text-primary);">ISS altitude:</strong> ~420 km, overhead passes last 5–10 minutes</li>
|
||||
<li><strong style="color: var(--text-primary);">Best passes:</strong> Elevation > 30° for clear signal</li>
|
||||
<li><strong style="color: var(--text-primary);">Outdoors:</strong> Clear sky view is essential. Roof or open field</li>
|
||||
<li><strong style="color: var(--text-primary);">LNA:</strong> Optional but helps — 2m filtered LNA at antenna feed</li>
|
||||
<li><strong style="color: var(--text-primary);">Doppler:</strong> ISS moves fast — signal shifts ±3.5 kHz during pass</li>
|
||||
</ul>
|
||||
</div>
|
||||
|
||||
<div style="background: var(--bg-primary); border: 1px solid var(--border-color); border-radius: 4px; padding: 10px;">
|
||||
<strong style="color: var(--accent-cyan); font-size: 12px;">Quick Reference</strong>
|
||||
<table style="width: 100%; margin-top: 6px; font-size: 10px; border-collapse: collapse;">
|
||||
<tr style="border-bottom: 1px solid var(--border-color);">
|
||||
<td style="padding: 3px 4px; color: var(--text-dim);">ISS SSTV frequency</td>
|
||||
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">145.800 MHz</td>
|
||||
</tr>
|
||||
<tr style="border-bottom: 1px solid var(--border-color);">
|
||||
<td style="padding: 3px 4px; color: var(--text-dim);">Quarter-wave length</td>
|
||||
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">51 cm</td>
|
||||
</tr>
|
||||
<tr style="border-bottom: 1px solid var(--border-color);">
|
||||
<td style="padding: 3px 4px; color: var(--text-dim);">Modulation</td>
|
||||
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">FM (25 kHz)</td>
|
||||
</tr>
|
||||
<tr style="border-bottom: 1px solid var(--border-color);">
|
||||
<td style="padding: 3px 4px; color: var(--text-dim);">Polarization</td>
|
||||
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">RHCP (circular)</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td style="padding: 3px 4px; color: var(--text-dim);">Typical pass duration</td>
|
||||
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">5–10 min</td>
|
||||
</tr>
|
||||
</table>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
Reference in New Issue
Block a user