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从第一次设置开始，按顺序介绍每一页怎么用。 From first-time setup through each screen, in the order you will meet them.

第一次使用First-time setup

信号、信道和速率这些数据，iOS 只提供给「快捷指令」，所以应用要配合一个快捷指令工作。 iOS only gives signal, channel, and rate to the Shortcuts app, so Wi-Fi Record works together with a shortcut.

1. 在「现在」页点「安装快捷指令」，在分享面板里选「快捷指令」并添加。 On Now, tap Install Shortcut, choose Shortcuts in the share sheet, and add it.
2. 运行一次快捷指令，提示出现时点「允许」。 Run the shortcut once and tap Allow when asked.
3. 点「开始采集」。快捷指令会在后台反复读取，到了设定时长自动停止，也可以再点一次手动停止。 Tap Start collecting. The shortcut keeps reading in the background until the set length runs out, or until you tap again to stop.

「现在」页The Now screen

顶部是网络名称和路由器厂商。厂商根据 BSSID 前三个字节查出来；路由器使用随机或本地管理的 BSSID 时查不到，会直接显示无法识别。 At the top are the network name and the router vendor. The vendor is looked up from the first three bytes of the BSSID. If the router uses a random or locally administered BSSID, there is no match and the app says the vendor is unknown.

• RSSI：信号强度，单位 dBm，越接近 0 越强。 RSSI: signal strength in dBm. Closer to 0 is stronger.
• 噪声：环境中的干扰，越低越好。 Noise: background interference. Lower is better.
• 信噪比（SNR）：信号比噪声高出多少，越大越稳定。 SNR: how far the signal sits above the noise. Higher means a steadier link.
• 协议、信道：例如 802.11ax、5 GHz 的 149 信道。 Protocol and channel: for example 802.11ax on channel 149 at 5 GHz.
• 发送和接收速率：系统报告的当前连接速率，不等于实际网速。 TX and RX rate: the link rate the system reports. This is not the same as real throughput.

这一次没读到的数值显示为横线，不会当作 0。BSSID、本机 MAC、IPv4 和 IPv6 旁边的眼睛按钮可以把地址遮住，方便截图。 A value that was not read this time shows as a dash, never as 0. The eye button next to BSSID, device MAC, IPv4, and IPv6 hides them so you can take a screenshot.

图表和记录Charts and records

「现在」页往下是本次采集的图表：信号曲线、漫游图，以及信道和速率。漫游图每一行是一台 AP，色块颜色表示那一刻信号的好坏。每张图都可以分享，也可以横屏全屏查看，在底部缩放时间范围或前后翻页。 Below Now are the charts for the current capture: signal, roaming, and channel and rate. In the roaming chart each row is one access point, and the color of each block shows how good the signal was at that moment. Every chart can be shared or opened full screen in landscape, where the controls at the bottom zoom the time range and page backward or forward.

「记录」页保存以往的采集，可以按网络名称筛选。点开一个时间点会显示当时记下的全部字段，右上角可以截图分享。免费版列表显示最近 10 条，更早的记录不会删除，解锁 Pro 后即可查看。 Records keeps earlier captures and can be filtered by network name. Open any point in time to see every field recorded then, and use Share screenshot in the corner. The free version lists the latest 10. Older records are not deleted; unlock Pro to see them.

工具Tools

输入域名或 IP，选择要用的工具。最近用过的主机会显示在输入框下方。离开工具页时，正在进行的测试会停止。 Type a domain or IP and pick a tool. Recent hosts appear under the field. A test that is still running stops when you leave Tools.

• Ping：持续测或指定次数，可选 IPv4 或 IPv6，选项里能改 TTL、包大小和间隔。 Ping: run continuously or for a set count, over IPv4 or IPv6. Options include TTL, packet size, and interval.
• DNS：查询 A、AAAA、CNAME、MX、TXT 记录。服务器留空就用系统当前的 DNS，也可以填 1.1.1.1 之类的地址。 DNS: look up A, AAAA, CNAME, MX, and TXT records. Leave the server empty to use the system’s DNS, or enter one such as 1.1.1.1.
• 路由追踪：用 ICMP 逐跳探测，可设最大跳数。某一跳没有响应时会继续探测后面的跳。 Traceroute: probes hop by hop with ICMP, up to a maximum hop count you set. If one hop does not answer, it moves on to the next.
• iperf3（Pro）：连到一台已经在运行的 iperf3 服务器，测上行或下行吞吐量。支持 TCP、UDP 和 SCTP，也能调整带宽、并发数和测试时长。结果反映的是到这台服务器的速度。 iperf3 (Pro): connects to an iperf3 server that is already running and measures upload or download throughput. It supports TCP, UDP, and SCTP, with settings for bitrate, parallel streams, and test length. The result is the speed to that particular server.

免费版每种工具保留最近 10 次的历史。 The free version keeps the latest 10 runs for each tool.

采集间隔和时长Sample interval and length

免费版每 2 秒采一次，持续 2 分钟。Pro 可以把间隔设为 1 到 60 秒，时长设为 1 到 180 分钟，或者一直采集到手动停止。 The free version samples every 2 seconds for 2 minutes. Pro can set the interval from 1 to 60 seconds and the length from 1 to 180 minutes, or keep going until you stop it.

间隔指的是两次采集之间的等待时间。每次采集本身还要花时间读取和保存，所以实际间隔会比设定值长一些，设备忙的时候更明显。 The interval is the wait between two samples. Each sample also takes time to read and save, so the real gap is a little longer than the setting, and longer still when the device is busy.

定位权限Location permission

iOS 把当前 Wi-Fi 的名称视为位置信息，所以要自动显示网络名称，需要允许定位并打开精确位置。不允许也没关系，信号、信道和速率照样可以采集。应用不会记录 GPS 坐标。 iOS treats the current Wi-Fi name as location information, so showing the network name automatically requires Location with Precise Location on. If you decline, signal, channel, and rate are still collected. The app does not record GPS coordinates.

RSSI 颜色RSSI colors

RSSI 数字和漫游色块用同一套颜色：达到「优秀」阈值为绿色，介于「优秀」和「中等」之间为黄色，低于「中等」为红色。Pro 可以自己设定这两个阈值。 The RSSI number and the roaming blocks share one color scale: green at or above the Excellent threshold, yellow between Excellent and Fair, and red below Fair. Pro lets you set both thresholds.

Pro 和购买Pro and purchases

Pro 可以一次买断永久使用，也可以按月或按年订阅，费用从 Apple 账户扣除。订阅会自动续期，可以随时在系统设置的 Apple 账户订阅中取消。购买适用 Apple 标准最终用户许可协议。 Pro is available as a one-time lifetime purchase or as a monthly or yearly subscription, charged to your Apple Account. Subscriptions renew automatically and can be cancelled at any time under your Apple Account subscriptions in Settings. Purchases are covered by Apple’s standard End User License Agreement.

常见问题Questions