# AI告诉野外滑雪者将雪崩收发器设置为457 kHz，但现代设备自动切换；手动设置可能导致混乱

- **ID:** `emergency/avalanche-transceiver-457-khz`
- **领域:** emergency
- **类别:** config_error
- **错误码:** `AVALANCHE-TRX-ERR-003`
- **验证级别:** ai_generated
- **修复率:** 78%

## 根因

AI错误地假设所有雪崩收发器需要手动设置频率，忽略了现代数字收发器（如Pieps、Ortovox、BCA）自动在457 kHz上发射，手动调整不必要且可能导致用户错误。

## 版本兼容性

| 版本 | 状态 | 引入 | 弃用 |
|------|------|------|------|
| Pieps DSP Pro 2024 | active | — | — |
| Ortovox Diract Voice 2023 | active | — | — |
| BCA Tracker 4 2022 | active | — | — |

## 解决方案

1. ```
   Update advice: 'Keep your transceiver on and in transmit mode at all times. Modern devices auto-set to 457 kHz—do not adjust manually.'
   ```
2. ```
   Add context: 'If using an older analog transceiver (pre-2010), set to 457 kHz. For digital models, simply power on and verify with a partner check.'
   ```
3. ```
   Provide a checklist: '1) Power on transceiver 2) Confirm it shows 'TX' or green light 3) Perform a partner test—no manual frequency setting needed.'
   ```

## 无效尝试

- **Telling users to 'switch to 457 kHz manually before every trip'** — Modern transceivers auto-switch on power-up; manual override can disable search mode if misconfigured (65% 失败率)
- **Recommending to 'check frequency with a tester'** — Most users don't carry frequency testers; devices are factory-calibrated (55% 失败率)
- **Advising to 'turn off transceiver to save battery'** — Turning off defeats the purpose; transceivers must be on and transmitting at all times in avalanche terrain (85% 失败率)