offline - Added NOAA Weather Radio U.S. channels

overlay/etc/skel/Desktop/offline/reference/nwr.md

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+---
+title: "NOAA Weather Radio: Frequency Reference"
+date: 2026-03-22
+updated: 2026-03-22
+author: [The Tech Prepper]
+categories: [radio, reference]
+tags: [noaa, weather, vhf, nwr]
+copyright: "(C) 2026 The Tech Prepper, LLC"
+---
+
+NOAA Weather Radio (NWR) provides continuous weather information,
+alerts, and emergency broadcasts across the United States.
+
+
+## Frequencies
+
+The following are the standard NOAA Weather Radio channels in the
+VHF band. These are fixed nationwide frequencies.
+
+| Channel | Frequency (MHz) |
+|---------|----------------|
+| WX1     | 162.400        |
+| WX2     | 162.425        |
+| WX3     | 162.450        |
+| WX4     | 162.475        |
+| WX5     | 162.500        |
+| WX6     | 162.525        |
+| WX7     | 162.550        |
+
+
+**Notes:**
+
+- All channels use **FM (narrowband)** modulation
+- Coverage depends on local transmitter locations