什么PTP值才能在IPT天线之间获得良好的RF漫游（#2）
- jason.hao
- Brian Chow
为了在IPT天线之间获得良好的RF漫游，offset from master values需要在 ±100ns (± 0.1 µs) 的范围内。AES67 / ST2110系统能够达到这个要求的容差。
对于运行FreeSpeak II或FS Edge的IPT天线的Clear-Com系统，需要更严格的容差以允许射频漫游。
对于良好的漫游IPT天线需要 ±100ns (± 0.1 µs) 的容差。
下表显示了使用IPT天线进行良好 FreeSpeak II / FS Edge 漫游所需的值
PTP 参数 | 值(范围) | 表现 |
Offset from the master clock (OFM) | ± 100 ns ± 0.1 µs | 优秀 |
| ± 500 ns | 潜在的漫游问题 |
| ± 1,000 ns ± 1 µs | 漫游可能会出现问题 |
| >± 1,000 ns | 无法在天线之间漫游和间歇性丢失锁定问题 |
如果使用125µs ptp 配置文件时，总体数据包传输时间大于2ms，则将没有音频。
如果使用 1ms ptp 配置文件时，总体数据包传输时间大于20ms，则将没有音频。
English version links refer toWhat PTP values do I need to get good RF roaming between IPT antennas (#2)
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