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intercept/templates/partials/modes/weather-satellite.html
Smittix 5e9fcc5c49 feat: Switch application font to Roboto Condensed 
Replace IBM Plex Mono, Space Mono, and JetBrains Mono with Roboto
Condensed across all CSS variables, inline styles, canvas ctx.font
references, and Google Fonts CDN links. Updates 28 files covering
templates, stylesheets, and JS modules for consistent typography.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-16 23:29:05 +00:00

250 lines
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<!-- WEATHER SATELLITE MODE -->
<div id="weatherSatMode" class="mode-content">
<div class="section">
<h3>Weather Satellite Decoder</h3>
<div class="alpha-mode-notice">
ALPHA: Weather Satellite capture is experimental and may fail depending on SatDump version, SDR driver support, and pass conditions.
</div>
<p class="info-text" style="font-size: 11px; color: var(--text-dim); margin-bottom: 12px;">
Receive and decode weather images from NOAA and Meteor satellites.
Uses SatDump for live SDR capture and image processing.
</p>
</div>
<div class="section">
<h3>Satellite</h3>
<div class="form-group">
<label>Select Satellite</label>
<select id="weatherSatSelect" class="mode-select">
<option value="METEOR-M2-3" selected>Meteor-M2-3 (137.900 MHz LRPT)</option>
<option value="METEOR-M2-4">Meteor-M2-4 (137.900 MHz LRPT)</option>
<option value="NOAA-15" disabled>NOAA-15 (137.620 MHz APT) [DEFUNCT]</option>
<option value="NOAA-18" disabled>NOAA-18 (137.9125 MHz APT) [DEFUNCT]</option>
<option value="NOAA-19" disabled>NOAA-19 (137.100 MHz APT) [DEFUNCT]</option>
</select>
</div>
<div class="form-group">
<label>Gain (dB)</label>
<input type="number" id="weatherSatGain" value="40" step="0.1" min="0" max="50">
</div>
<div class="form-group">
<label style="display: flex; align-items: center; gap: 6px;">
<input type="checkbox" id="weatherSatBiasT" style="width: auto;">
Bias-T (power LNA)
</label>
</div>
</div>
<!-- Antenna Guide - detailed -->
<div class="section">
<h3>Antenna Guide</h3>
<div style="font-size: 11px; color: var(--text-dim); line-height: 1.5;">
<p style="margin-bottom: 10px; color: var(--accent-cyan); font-weight: 600;">
137 MHz band &mdash; your stock SDR antenna will NOT work.
</p>
<p style="margin-bottom: 10px;">
Weather satellites transmit at 137.1&ndash;137.9 MHz. The quarter-wave
at this frequency is <strong style="color: var(--text-primary);">~53 cm</strong>,
far longer than the small telescopic antenna shipped with most SDRs
(tuned for ~1 GHz). You need a purpose-built antenna.
</p>
<!-- V-Dipole -->
<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 &mdash; ~$5)</strong>
<div style="margin: 8px 0; padding: 8px; background: var(--bg-tertiary); border-radius: 3px; font-family: 'Roboto Condensed', 'Arial Narrow', sans-serif; font-size: 10px; color: var(--text-secondary); white-space: pre; line-height: 1.3; text-align: center;"> coax to SDR
|
===+=== feed point
/ \
/ 120 \
/ \
/ deg \
53.4cm 53.4cm</div>
<ul style="margin: 6px 0 0 14px; padding: 0;">
<li><strong style="color: var(--text-primary);">Element length:</strong> 53.4 cm each (quarter wavelength at 137 MHz)</li>
<li><strong style="color: var(--text-primary);">Angle:</strong> 120&deg; between elements (not 180&deg;)</li>
<li><strong style="color: var(--text-primary);">Material:</strong> Any stiff wire, coat hanger, or copper rod</li>
<li><strong style="color: var(--text-primary);">Orientation:</strong> Lay flat or tilt 30&deg; toward expected pass direction</li>
<li><strong style="color: var(--text-primary);">Polarization:</strong> The 120&deg; angle gives partial RHCP match to satellite signal</li>
<li><strong style="color: var(--text-primary);">Connection:</strong> Solder elements to coax center + shield, connect to SDR via SMA</li>
</ul>
<p style="margin-top: 6px; color: var(--text-dim); font-style: italic;">
Best starter antenna. Good enough for clear NOAA images with a direct overhead pass.
</p>
</div>
<!-- Turnstile -->
<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;">Turnstile / Crossed Dipole (~$10-15)</strong>
<div style="margin: 8px 0; padding: 8px; background: var(--bg-tertiary); border-radius: 3px; font-family: 'Roboto Condensed', 'Arial Narrow', sans-serif; font-size: 10px; color: var(--text-secondary); white-space: pre; line-height: 1.3; text-align: center;"> 53.4cm
&lt;---------&gt;
====+==== dipole 1
|
====+==== dipole 2
&lt;---------&gt;
90 deg rotated
+ reflector below</div>
<ul style="margin: 6px 0 0 14px; padding: 0;">
<li><strong style="color: var(--text-primary);">Elements:</strong> Two crossed dipoles, each 53.4 cm per side (4 elements total)</li>
<li><strong style="color: var(--text-primary);">Angle:</strong> 90&deg; between the two dipole pairs</li>
<li><strong style="color: var(--text-primary);">Phasing:</strong> Feed dipole 2 with a 90&deg; delay (quarter-wave coax section ~37 cm of RG-58)</li>
<li><strong style="color: var(--text-primary);">Reflector:</strong> Place ~52 cm below elements (ground plane or wire grid)</li>
<li><strong style="color: var(--text-primary);">Polarization:</strong> Circular (RHCP) &mdash; matches satellite transmission</li>
</ul>
<p style="margin-top: 6px; color: var(--text-dim); font-style: italic;">
Better than V-dipole. The reflector rejects ground noise and the RHCP phasing matches the satellite signal.
</p>
</div>
<!-- QFH -->
<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;">QFH &mdash; Quadrifilar Helix (Best &mdash; ~$20-30)</strong>
<div style="margin: 8px 0; padding: 8px; background: var(--bg-tertiary); border-radius: 3px; font-family: 'Roboto Condensed', 'Arial Narrow', sans-serif; font-size: 10px; color: var(--text-secondary); white-space: pre; line-height: 1.3; text-align: center;"> ___
/ \ two helix loops
| | | twisted 90 deg
| | | around a mast
\___/
|
coax</div>
<ul style="margin: 6px 0 0 14px; padding: 0;">
<li><strong style="color: var(--text-primary);">Design:</strong> Two bifilar helical loops, offset 90&deg;</li>
<li><strong style="color: var(--text-primary);">Material:</strong> Copper pipe (10mm), copper wire, or coax outer shield</li>
<li><strong style="color: var(--text-primary);">Total height:</strong> ~46 cm (for 137 MHz)</li>
<li><strong style="color: var(--text-primary);">Loop dimensions:</strong> Use a QFH calculator for exact bending measurements</li>
<li><strong style="color: var(--text-primary);">Polarization:</strong> True RHCP omnidirectional &mdash; ideal for overhead satellite passes</li>
<li><strong style="color: var(--text-primary);">Gain pattern:</strong> Hemispherical upward coverage, rejects ground interference</li>
</ul>
<p style="margin-top: 6px; color: var(--text-dim); font-style: italic;">
Gold standard for weather satellite reception. No tracking needed &mdash; covers the whole sky.
</p>
</div>
<!-- Placement & LNA -->
<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 & LNA</strong>
<ul style="margin: 6px 0 0 14px; padding: 0;">
<li><strong style="color: var(--text-primary);">Location:</strong> OUTDOORS with clear sky view is critical. Roof/balcony/open field.</li>
<li><strong style="color: var(--text-primary);">Height:</strong> Higher is better but not critical &mdash; clear horizon line matters more</li>
<li><strong style="color: var(--text-primary);">Antenna up:</strong> Point the antenna straight UP (zenith) for best overhead coverage</li>
<li><strong style="color: var(--text-primary);">Avoid:</strong> Metal roofs, power lines, buildings blocking the sky</li>
<li><strong style="color: var(--text-primary);">Coax length:</strong> Keep short (&lt;10m). Signal loss at 137 MHz is ~3 dB per 10m of RG-58</li>
<li><strong style="color: var(--text-primary);">LNA:</strong> Mount at the antenna feed point, NOT at the SDR end.
Recommended: Nooelec SAWbird+ NOAA (137 MHz filtered LNA, ~$30)</li>
<li><strong style="color: var(--text-primary);">Bias-T:</strong> Enable the Bias-T checkbox above if your LNA is powered via the coax from the SDR</li>
</ul>
</div>
<!-- Quick reference -->
<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);">Wavelength (137 MHz)</td>
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">218.8 cm</td>
</tr>
<tr style="border-bottom: 1px solid var(--border-color);">
<td style="padding: 3px 4px; color: var(--text-dim);">Quarter wave (element length)</td>
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">53.4 cm</td>
</tr>
<tr style="border-bottom: 1px solid var(--border-color);">
<td style="padding: 3px 4px; color: var(--text-dim);">Best pass elevation</td>
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">&gt; 30&deg;</td>
</tr>
<tr style="border-bottom: 1px solid var(--border-color);">
<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;">10-15 min</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</td>
</tr>
<tr style="border-bottom: 1px solid var(--border-color);">
<td style="padding: 3px 4px; color: var(--text-dim);">NOAA (APT) bandwidth</td>
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">~40 kHz</td>
</tr>
<tr>
<td style="padding: 3px 4px; color: var(--text-dim);">Meteor (LRPT) bandwidth</td>
<td style="padding: 3px 4px; color: var(--text-primary); text-align: right;">~140 kHz</td>
</tr>
</table>
</div>
</div>
</div>
<div class="section">
<h3 onclick="this.parentElement.querySelector('.wxsat-test-decode-body').classList.toggle('collapsed'); this.querySelector('.wxsat-collapse-icon').classList.toggle('collapsed')" style="cursor: pointer; display: flex; align-items: center; justify-content: space-between; user-select: none;">
Test Decode (File)
<span class="wxsat-collapse-icon collapsed" style="font-size: 10px; transition: transform 0.2s; display: inline-block;">&#9660;</span>
</h3>
<div class="wxsat-test-decode-body collapsed" style="overflow: hidden;">
<p class="info-text" style="font-size: 11px; color: var(--text-dim); margin-bottom: 8px;">
Decode a pre-recorded IQ or WAV file without SDR hardware.
Run <code style="font-size: 10px;">./download-weather-sat-samples.sh</code> to fetch sample files.
</p>
<div class="form-group">
<label>Satellite</label>
<select id="wxsatTestSatSelect" class="mode-select">
<option value="METEOR-M2-3" selected>Meteor-M2-3 (LRPT)</option>
<option value="METEOR-M2-4">Meteor-M2-4 (LRPT)</option>
<option value="NOAA-15">NOAA-15 (APT)</option>
<option value="NOAA-18">NOAA-18 (APT)</option>
<option value="NOAA-19">NOAA-19 (APT)</option>
</select>
</div>
<div class="form-group">
<label>File Path (server-side)</label>
<input type="text" id="wxsatTestFilePath" value="data/weather_sat/samples/noaa_apt_argentina.wav" style="font-family: 'Roboto Condensed', 'Arial Narrow', sans-serif; font-size: 11px;">
</div>
<div class="form-group">
<label>Sample Rate</label>
<select id="wxsatTestSampleRate" class="mode-select">
<option value="11025">11025 Hz (WAV audio APT)</option>
<option value="48000">48000 Hz (WAV audio APT)</option>
<option value="500000">500 kHz (IQ LRPT)</option>
<option value="1000000" selected>1 MHz (IQ default)</option>
<option value="2000000">2 MHz (IQ wideband)</option>
</select>
</div>
<button class="mode-btn" onclick="WeatherSat.testDecode()" style="width: 100%; margin-top: 4px;">
Test Decode
</button>
</div>
</div>
<div class="section">
<h3>Auto-Scheduler</h3>
<p class="info-text" style="font-size: 11px; color: var(--text-dim); margin-bottom: 8px;">
Automatically capture satellite passes based on predictions.
Set your location above and toggle AUTO in the strip bar.
</p>
<div class="form-group">
<label style="display: flex; align-items: center; gap: 6px;">
<input type="checkbox" id="wxsatSidebarAutoSchedule" onchange="WeatherSat.toggleScheduler()" style="width: auto;">
Enable Auto-Capture
</label>
</div>
<div id="wxsatSchedulerStatus" style="font-size: 11px; color: var(--text-dim); font-family: 'Roboto Condensed', 'Arial Narrow', sans-serif; margin-top: 4px;">
Disabled
</div>
</div>
<div class="section">
<h3>Resources</h3>
<div style="display: flex; flex-direction: column; gap: 6px;">
<a href="https://github.com/SatDump/SatDump" target="_blank" rel="noopener" class="preset-btn" style="text-decoration: none; text-align: center;">
SatDump Documentation
</a>
<a href="https://www.rtl-sdr.com/rtl-sdr-tutorial-receiving-noaa-weather-satellite-images/" target="_blank" rel="noopener" class="preset-btn" style="text-decoration: none; text-align: center;">
NOAA Reception Guide
</a>
</div>
</div>
</div>
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