Ryan Malloy
a0394b0c56
Astro 5 + Starlight 0.37 docs site for the NanoVNA-F V3 portable vector network analyzer. Content sourced from the extracted PDF user guide and menu structure map. - 38 MDX content pages organized in diataxis structure (getting-started, tutorials, how-to guides, reference) - Steel blue/teal theme (#2d7d9a/#5bb8d4) distinct from NanoVNA-H - 5 custom Astro components (CommandTable, MenuTree, SpecCard, ScreenRegion, CalibrationStep) - 42 renamed screenshots from the user guide PDF extraction - Docker deployment via Caddy behind caddy-docker-proxy - Full console command reference (28 commands) - Complete menu map with interactive tree component
59 lines
2.3 KiB
Plaintext
59 lines
2.3 KiB
Plaintext
---
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title: Marker Search
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description: Find peaks, valleys, and track measurements automatically
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---
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import { Aside, Steps } from '@astrojs/starlight/components';
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import markerSearch from '../../../../assets/screenshots/marker-search.png';
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Marker search functions move the active marker to points of interest on the trace -- peaks, valleys, or adjacent features -- without manual positioning.
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<img src={markerSearch.src} alt="Marker search menu showing search options" />
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## Find the maximum value
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<Steps>
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1. Select the marker you want to use.
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2. Tap <span class="menu-path">MARKER → SEARCH → MAXIMUM</span>.
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3. The marker jumps to the highest point on the active trace.
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</Steps>
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This is useful for finding the peak response of a bandpass filter or the resonant frequency of an antenna.
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## Find the minimum value
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<Steps>
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1. Select the marker you want to use.
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2. Tap <span class="menu-path">MARKER → SEARCH → MINIMUM</span>.
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3. The marker jumps to the lowest point on the active trace.
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</Steps>
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This works well for locating the deepest return loss notch or the stopband null of a filter.
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## Search left or right
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To find the next peak or valley relative to the current marker position:
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- **SEARCH <LEFT** -- searches toward lower frequencies from the marker
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- **SEARCH >RIGHT** -- searches toward higher frequencies from the marker
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These are useful for stepping through multiple resonances or ripple peaks across a frequency span.
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## Enable tracking mode
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<Steps>
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1. Select the marker.
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2. Tap <span class="menu-path">MARKER → SEARCH → TRACKING</span>.
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3. The marker now automatically follows the peak (or valley) on every sweep.
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</Steps>
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With tracking enabled, the marker continuously updates its position as the trace changes. This is particularly helpful when adjusting an antenna or tuning circuit in real time -- the marker stays locked to the feature you care about.
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<Aside>
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Tracking follows whichever extreme (maximum or minimum) was last selected. If you used MAXIMUM before enabling TRACKING, it tracks the peak. If you used MINIMUM, it tracks the valley.
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</Aside>
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<Aside type="tip">
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Combine tracking with a narrow frequency span for detailed real-time monitoring of a single resonance while making physical adjustments to your device under test.
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</Aside>
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