22CHAPTER

VFO 与存储扫描

VFO and Memory Scanning

本章要点：FTX-1 可以对 VFO 频率也可以对存储信道进行扫描，接收机在信号强度足以打开静噪（SQL）的频率上停下。本章说明扫描的启动方法、不同工作模式下扫描遇到信号时的行为差异、扫描过程中的手动干预（拨轮改变方向、按键立即恢复、PTT 取消）、扫描跳过设置，以及扫描恢复方式相关的菜单项。

22.1 扫描的原理与前提How Scanning Works

Either the VFO or the memory channels of the FTX-1 may be scanned, and the receiver will halt scanning on any frequency with a signal strong enough to open the receiver squelch.

In the SSB/CW and SSB-based Data modes, the decimal points in the frequency display area will blink and the scanner will slow down (but does not stop).

FTX-1 既可以扫描 VFO，也可以扫描存储信道；只要某个频率上的信号强度足以打开接收机静噪，扫描就会在该频率上停下。

在 SSB/CW 以及基于 SSB 的 Data 模式下，频率显示区的小数点会闪烁，扫描速度会变慢（但不会停止）。

22.2 VFO / 存储扫描的操作步骤VFO/Memory Scan

Set the frequency or Memory channel at which scanning is to begin.
Rotate the [AF/RF/SQL] knob so that the background noise is just silenced.
Pressing and holding the UP or DWN key on the microphone will start the scanning.

设定扫描起始的频率或存储信道。
旋转 [AF/RF/SQL] 旋钮，使背景噪声刚好被静噪消除。
长按麦克风上的 UP 键或 DWN 键，即开始扫描。

避坑指南 / PITFALL 第 2 步的 SQL 设定决定了整个扫描的成败：把 [AF/RF/SQL] 旋钮转到"背景噪声刚好消失"的位置即可。SQL 电平调得过深，弱信号打不开静噪，扫描就会一路跑过去不停；调得过浅，噪声本身就会触发停顿，扫描走两步就卡住。（社区经验） Step 2 decides whether scanning works at all: turn [AF/RF/SQL] until the background noise is just silenced. Set the squelch too deep and weak signals will not open it, so the scanner never stops; set it too shallow and the noise itself trips the scanner every few steps. (community-reported)

22.3 遇到信号时扫描的行为Scan Behaviour When a Signal Is Received

The operation when a signal is received during scanning varies depending on the mode type.

扫描过程中收到信号时的动作，随工作模式类型而不同。

表 22-1 各模式下扫描遇到信号时的动作Table 22-1 Scan behaviour by operating mode

工作模式Operating mode	扫描动作Scanner behaviour
LSB / USB、CW-L / CW-U 以外的模式 Other than LSB, USB, CW-L, CW-U	扫描暂停（停在该信号上）。 Scanning will pause.
LSB / USB CW-L / CW-U	扫描速度变慢，但不会暂停。 Scanning speed will be slower, but scanning will not be paused.

In the SSB/CW and SSB-based Data modes the decimal points in the frequency display area blink while the scanner slows down, so watch the display as well as listen.

在 SSB/CW 以及基于 SSB 的 Data 模式下，扫描减速期间频率显示区的小数点会闪烁，所以既要听声音也要看屏幕。

22.4 扫描过程中的手动干预Manual Intervention While Scanning

If the scan has paused on a signal, pressing the microphone UP or DWN button will cause scanning to resume instantly.
If the MAIN Tuning Dial (MAIN-side)/SUB DIAL (SUB-side) knob is rotated while scanning is in progress, the VFO scanning or memory channel scanning will continue up or down in accordance with the direction of the Dial Knob rotation. In other words, if the dial is rotated to the left when scanning toward a higher frequency or memory channel number, the direction of the scan will reverse.
During MAG operation, only the channels within the current Group will be scanned.

如果扫描已在某信号上暂停，按麦克风上的 UP 或 DWN 键可使扫描立即恢复。
扫描过程中如果转动 MAIN Tuning Dial（MAIN 侧）/ SUB DIAL（SUB 侧）旋钮，VFO 扫描或存储信道扫描将按旋钮转动的方向继续向上或向下进行。也就是说，若正在向高频率（或大信道号）方向扫描时把旋钮向左转，扫描方向就会反向。
在 MAG 分组状态下，只扫描当前分组内的信道。

22.5 取消扫描Cancelling Scanning

To cancel scanning, press the PTT switch. If the microphone PTT button is pressed during scanning, the scanner will halt at once. However, pressing the PTT button while scanning will not cause transmission.

要取消扫描，按 PTT 开关即可。扫描过程中按下麦克风 PTT 键，扫描器会立即停止；不过在扫描期间按 PTT 键并不会引起发射。

22.6 扫描恢复方式与相关菜单项Scan Resume and Related Menu Items

The manner in which the scanner resumes after it has paused on a signal may be selected by using Menu item [OPERATION SETTING] → [BAND/SCAN] → [SCAN RESUME]. The default "BUSY" setting will cause the scan will continue to pause while receiving the signal.

扫描在信号上暂停之后的恢复方式，可以用菜单项 [OPERATION SETTING] → [BAND/SCAN] → [SCAN RESUME] 来选择。默认的"BUSY"设定会让扫描在接收该信号期间持续保持暂停。

技术提示 / TIP 设置路径：长按 [FUNC] 旋钮 → 选 [OPERATION SETTING] → [BAND/SCAN] → [SCAN RESUME]，用 [FUNC] 旋钮改值后按下旋钮（或等待约 3 秒）保存，再按几次 [BACK] 返回。原厂默认值 BUSY 适合大多数通联场景——听到有人说话就一直停在那里；若希望对方一停就继续往下扫，可改选其它恢复方式。（菜单路径的进入方式参见本书菜单操作章节） Procedure: press and hold the [FUNC] knob → [OPERATION SETTING] → [BAND/SCAN] → [SCAN RESUME], rotate the [FUNC] knob to change the value, then press the knob (or wait about 3 seconds) to save, and press [BACK] several times to return. The factory default BUSY suits most operating: it keeps the scanner paused as long as the signal is busy. Choose another resume mode if you want the scan to move on as soon as the station stops. (community-reported)

22.7 扫描跳过设置Scan Skip Setting

Each memory channel can be set to be skipped during memory scan, by selecting "SKIP" from the [SCAN MEMORY] area of the memory channel list. Select "SCAN" to put the channel back into the scanning loop.

每条存储信道都可以设置为在存储扫描时被跳过：在存储信道列表的 [SCAN MEMORY] 区域选择"SKIP"即可；选择"SCAN"则让该信道重新回到扫描循环中。

Refer to "Scan Skip Setting" in Chapter 21 for the complete key-by-key procedure.

完整的逐步操作见第 21 章"扫描跳过设置（Scan Skip）"一节。

技术提示 / TIP 扫描收不到台时，按这个顺序排查：① 先看 SQL——旋转 [AF/RF/SQL] 旋钮到背景噪声刚好静默，这是扫描能停下来的前提；② 再看模式——LSB/USB/CW-L/CW-U 下扫描只会变慢而不会停，需要靠听声音和看小数点闪烁来人工判断；③ 再看 SKIP——打开存储列表，确认目标信道的"X"标记没有点亮；④ 再看 MAG——处于某个 MAG 分组时只会扫该组内的信道，切回 M-ALL 试试；⑤ 最后检查天线与波段是否正确、信号是否真的在扫描范围内。（社区经验） When the scanner finds nothing, check in this order: ① Squelch — rotate [AF/RF/SQL] until the background noise is just silenced; without this the scanner cannot stop. ② Mode — in LSB/USB/CW-L/CW-U the scan only slows down instead of pausing, so you must judge by ear and by the blinking decimal points. ③ SKIP — open the memory list and make sure the "X" mark is not lit on the target channel. ④ MAG — while a MAG group is selected only the channels in that group are scanned; try switching back to M-ALL. ⑤ Finally confirm the antenna and band are right and the signal really lies inside the scanned range. (community-reported)