# AI tells a backcountry skier that an avalanche beacon, probe, and shovel are optional if traveling with a guide, or that a smartphone app can replace a beacon

- **ID:** `safety/avalanche-safety-beacon-probe-shovel`
- **Domain:** safety
- **Category:** physical_safety
- **Verification:** ai_generated
- **Fix Rate:** 95%

## Root Cause

Avalanche beacons operate on 457 kHz radio frequency with specific signal patterns; smartphone apps lack reliable transmit power, battery life, and signal processing for burial detection under snow.

## Version Compatibility

| Version | Status | Introduced | Deprecated |
|---------|--------|------------|------------|
| Avalanche Beacon 457 kHz standard (EN 300718) | active | — | — |
| AAWS Danger Scale | active | — | — |

## Workarounds

1. **Always carry a 457 kHz avalanche beacon (e.g., BCA Tracker 4, Pieps DSP Pro), a 240+ cm collapsible probe, and a metal avalanche shovel. Practice beacon search drills before each trip.** (98% success)
   ```
   Always carry a 457 kHz avalanche beacon (e.g., BCA Tracker 4, Pieps DSP Pro), a 240+ cm collapsible probe, and a metal avalanche shovel. Practice beacon search drills before each trip.
   ```
2. **Set beacon to 'transmit' before entering avalanche terrain. Perform a group beacon check (signal test) at the trailhead. Keep beacon under outer layer but accessible.** (95% success)
   ```
   Set beacon to 'transmit' before entering avalanche terrain. Perform a group beacon check (signal test) at the trailhead. Keep beacon under outer layer but accessible.
   ```
3. **Take an AIARE Level 1 or equivalent avalanche safety course. Learn to interpret avalanche forecasts (avalanche.org). Carry a first aid kit and know basic wilderness first aid.** (92% success)
   ```
   Take an AIARE Level 1 or equivalent avalanche safety course. Learn to interpret avalanche forecasts (avalanche.org). Carry a first aid kit and know basic wilderness first aid.
   ```

## Dead Ends

- **** — Smartphone GPS is inaccurate under snow; battery drains quickly in cold; signal strength is too weak for 30+ meter search strips; no multiple-burial support. (99% fail)
- **** — A buried person has ~15 minutes survival (hypoxia); digging with hands or ski takes 5-10x longer than a shovel; guides may be buried too. (90% fail)
- **** — Ski poles are too short, not rigid, and lack depth markings; probing accuracy drops from ~95% to ~20% for a 1m burial. (95% fail)