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Add antenna quick reference guides to all mode sidebar panels

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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
2026-02-05 22:09:59 +00:00
parent 6d1f8f022e
commit c83a2ef56f
9 changed files with 570 additions and 0 deletions
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55
templates/partials/modes/aprs.html
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@@ -13,4 +13,59 @@
<span style="color: var(--accent-cyan);">Controls in function bar above map</span>
</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;">
2m band (144&ndash;148 MHz) &mdash; 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;">Simple Dipole (Easiest)</strong>
<ul style="margin: 6px 0 0 14px; padding: 0;">
<li><strong style="color: var(--text-primary);">Element length:</strong> ~51.5 cm each (quarter-wave at 144.39 MHz)</li>
<li><strong style="color: var(--text-primary);">Material:</strong> Wire, coat hanger, or copper rod</li>
<li><strong style="color: var(--text-primary);">Orientation:</strong> Vertical (APRS is FM, vertically polarized)</li>
<li><strong style="color: var(--text-primary);">Connection:</strong> Center conductor to one element, shield to the other</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;">Commercial Options</strong>
<ul style="margin: 6px 0 0 14px; padding: 0;">
<li><strong style="color: var(--text-primary);">Mag-mount 2m whip:</strong> ~$15&ndash;25, good mobile/portable option</li>
<li><strong style="color: var(--text-primary);">2m/70cm dual-band:</strong> ~$20&ndash;40, also covers 70cm ham band</li>
<li><strong style="color: var(--text-primary);">Discone:</strong> ~$30&ndash;50, wideband but lower gain on 2m</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);">APRS freq (N. America)</td>
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">144.390 MHz</td>
</tr>
<tr style="border-bottom: 1px solid var(--border-color);">
<td style="padding: 3px 4px; color: var(--text-dim);">APRS freq (Europe)</td>
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">144.800 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;">51.5 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 1200 baud</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>
</div>