Estimates 2m FM simplex range from your current milepost based on elevation, terrain, and typical atmospheric conditions along the BRP corridor.
Search a milepost to estimate simplex range
⚠ Estimates assume mobile whip antenna, 50W, standard atmosphere. Actual range varies significantly with antenna height, power, terrain obstruction, and atmospheric ducting. Always use 146.520 MHz as the simplex calling frequency to establish contact.
🌅 Golden Hour & Overlooks
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Search a milepost to see golden hour times and nearby overlook notes
🏕 Lodging & Camping
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NPS lodges & campgrounds near your milepost. Tap a name to open the reservation page.
Verify availability before travel — seasonal closures vary.
Search a milepost to find nearby lodging & camping
🎵 Appalachian Music Heritage
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Venues, festivals & heritage sites near your milepost. The BRP corridor is the heartbeat of old-time and bluegrass music in America.
Search a milepost to discover nearby music heritage
🌦 NOAA Weather Radio — Full Station List
RX ONLY · 162 MHz · No license required · Program all into scanner
AA4TE — BRP Ham Repeater Finder · Feature Guide
📡 Ham Radio Features
🔍 Milepost Search
Enter any milepost between 0 (Rockfish Gap, VA) and 469 (Newfound Gap, NC/TN) and press Find. Results are sorted by distance from your position. Use the radius slider to widen or narrow the search window.
📍 GPS Locate
Tapping My Location asks your browser for GPS permission, then cross-references your coordinates against a built-in parkway coordinate table to estimate your nearest milepost. Accuracy is ±2–3 miles. Works without cell service once the page is loaded.
⬇ CHIRP CSV Download
Downloads a CHIRP-compatible channel file of your current filtered results plus all 7 NOAA weather frequencies. Import into CHIRP-Next via File → Import. Filename includes your milepost and radius for easy identification.
🖨 Print Trip Sheet
Sends a clean black-on-white channel sheet to your printer or PDF writer. The dark background is stripped automatically. Print before entering known dead zones — a banner will warn you in advance. Great for sun-visor reference.
📵 Dead Zone Alerts
When you search a milepost near a known T-Mobile or AT&T coverage gap, a red banner automatically appears with details about the dead zone ahead and a quick Print Trip Sheet button so you can prep before losing signal.
📡 Simplex Propagation
Found in the right sidebar. Enter your milepost and the estimator calculates expected 2m FM simplex range based on your elevation, terrain type, and typical atmospheric conditions. Includes likely ridge-to-ridge contact targets.
📆 Net Schedule
Lists known nets active on BRP-area repeaters with frequency, day/time, and a brief description. Collapsible — tap the header to hide. All times Eastern. Verify with individual club websites before scheduling.
🌦 Weather + NOAA WX
Live NWS forecast for your milepost using the free weather.gov API — no API key required. Expand the NOAA WX Frequencies section inside the weather card to see the 1–2 stations most relevant to your stretch of parkway.
👁 Parkway Bar Overlays
Toggle layers above the parkway progress bar: Overlooks, Tunnels, Fuel/Services, Visitor Centers, and Dead Zones. Each layer drops emoji markers along the bar. Tap any milestone dot to jump-search that milepost.
📈 Elevation Profile
The thin chart below the search bar shows the BRP elevation profile from Rockfish Gap to Newfound Gap. Your current milepost is marked with a vertical line. Helps visualize why coverage varies — the Mt. Mitchell peak at MP 355 / 6684 ft is the crown.
🔴 Night Mode
Switches the entire interface to a red-tinted dark palette to preserve your night vision at the operating position. Auto-activates between 8 PM and 6 AM based on local time. Override with the button in the header at any time.
🗺 POI Map
Slide-out panel (header button) showing a schematic map of the full parkway with filterable point-of-interest layers: Waterfalls, Overlooks, History, Lodging, and Ham Sites. Each POI tappable for a detail card. Self-contained — no internet needed.
ℹ️ Data & Accuracy Notes
Repeater data compiled from club and linked system websites, and community reports including the HEARS Network and Appalachian Trail 2m Repeater Guide (N1MJD). Always verify frequencies, tones, and status before your trip — repeaters change without notice. NOAA station coverage areas are approximate. GPS milepost lookup has ±2–3 mile accuracy. Net times are Eastern and subject to change. de AA4TE — 73!
BRP Points of Interest Map
Layers:
⚠ Accuracy Notice: Repeater data compiled from club and linked system websites, and community reports. Always verify frequencies and tones before your trip. GPS milepost estimates ±2–3 mi. Weather data from NWS API (free). Trivia & POI data are approximate. CHIRP CSV download includes current filtered results + all NOAA stations. Import via File → Import in CHIRP-Next.