CLOSE CALL · Close Call 近场捕捉

25. Close Call 近场捕捉 / CLOSE CALL

对应 PDF 第 66–69 页

Your scanner's Close Call feature lets you set the scanner so it detects, alerts you to, and displays the frequency of a nearby strong radio transmission. You can set the scanner so the Close Call feature checks for a Close Call hit every 2 seconds in the background while you are scanning, searching, listening to the weather frequency, etc. or use Close Call Only mode. Close Call 'Do-Not-Disturb' will only check for close call signals when you are not receiving transmissions. You can also select the frequency band(s) to look for transmissions. When the scanner detects a Close Call hit, it alerts you according to the alert settings. 'Hits with Scan' is a special system that automatically stores the last 10 Close Call hits until you cycle power.

Close Call（近场捕捉）：在扫描、搜索、收听等同时，每 2 秒在后台侦测附近强信号的频率并提醒、显示。可选择"CC DND（免打扰，仅空闲时侦测）"或"Close Call Only（纯 CC 模式）"；可指定侦测频段；

命中时按警报设置提醒。'Hits with Scan'（命中随扫）是特殊系统，自动保存最近 10 次 CC 命中（关机后清空）。

The Close Call feature works well for locating the source of strong local transmissions such as mobile and handheld two-way radios in areas with no other strong transmission sources. Performance is increased with higher transmit power, a receive antenna tuned to the target band, and a low background RF level. The Close Call feature works better with some types of transmissions than others. It might not correctly display frequency information for transmitters using a highly directional antenna (such as an amateur radio beam antenna) or if there are many transmitters operating at the same time in the same area.

适用场景：定位本地强信号源（如车台、手持台）。发射功率越大、接收天线越对准目标频段、背景射频越低，效果越好。对某些调制类型效果更佳；若发射方使用高方向性天线（如业余八木天线）或同区域同时有大量发射机，可能无法正确显示频率。

🇺🇸 美版差异（译者补充，非 Uniden 原文）

美版差异：欧版手册此处仍提及"listening to the weather frequency"（收听天气频率），为美版文本的残留 ——欧版无天气功能。另注意欧版 CC 频段为：VHF Low1 25–54、VHF Low2 54–108、Air 108–137、VHF High1 137–225、VHF High2 225–320、UHF 320–512、800MHz+ 806–960 与 1240–1300（不含美版 758– 806 频段）。

Close Call 选项 / CLOSE CALL OPTIONS

Important! There are many options and settings in Search/Close Call Options that affect and compliment the settings for Close Call. Please review those first. Note: Close Call does not operate in Weather Scan or Tone- Out Standby/Search. Press Menu. Scroll to Close Call and press E/yes.

重要：第 23 章选项同样影响 Close Call，请先阅读。注意：CC 在 Tone-Out 待机/搜索中不工作（欧版无天气扫描）。路径： Menu → Close Call。

选项 / Option英文原文（EN）中文译文（CN）
Close Call OnlyThis setting puts the scanner in Close Call Only mode. See also Using Close Call. You can also toggle these modes by holding on any channel and pressing Func then Avoid.进入纯 CC 模式（也可在保持频道时按 Func + Avoid 切换）。
Hits with ScanThis is a special system that automatically stores the last 10 close call hits and allows you to scan them. Accessible only in the Close Call menu, the system has to be Unavoided to view while scanning (default is Permanent Avoid). The scanner will delete the frequencies in this system when you turn the power off. Set Avoid – Stop Avoiding, Temporary, or Permanent Avoid. Set Hold Time – Enter the hold time (0-255 sec.) and press E/yes to save.命中随扫：自动保存最近 10 次 CC 命 中的特殊系统，可在扫描中收听；默认设为永久回避，需在 CC 菜单中解除回 避才能在扫描中看到；关机后频率清 空。可设回避状态与驻留时间（0–255 秒）。
Set CC ModeSelects the Close Call mode when scanning or searching. Off – Close Call is turned off. CC DND – Close Call checks for frequencies every two seconds when the scanner is not receiving a transmission. CC Priority – Close Call checks for frequencies every two seconds. You can also toggle these modes by holding on any channel and pressing Func then Avoid.CC 模式：Off=关；CC DND=空闲时 每 2 秒侦测；CC Priority=始终每 2 秒 侦测（优先级最高）。快捷键同上。
Set CC BandsLets you select the Close Call bands to be searched. Scroll to each Band and press E/yes to toggle On or Off. VHF Low 1 – 25- 54 MHz; VHF Low 2 – 54-108 MHz; Air Band – 108-137 MHz; VHF High1 – 137- 225 MHz; VHF High2 – 225-320 MHz; UHF – 320-512 MHz; 800MHz+ – 806- 960, 1240-1300 MHz. (Cellular frequencies not scanned)选择 CC 侦测频段（逐段开关）：25– 54 / 54–108 / 108–137（航空）/ 137–225 / 225–320 / 320–512 / 806– 960 与 1240–1300 MHz。（手机频段 不会被扫描）
Set CC AlertThis allows you to set an Alert Tone, Alert Light, and sets the Pause time for Close Call when you receive a hit. Set Alert Tone – Alert 1-9 or Off. Set Level – Level 1-15 or Auto (the master volume level). Set Alert Light – Set Color (Off, Blue, Red, Magenta, Green, Cyan, Yellow, or White); Set Pattern (On, Slow Blink, or Fast Blink). Set CC Pause – 3, 5, 10, 15, 30, 45, 60 sec. or Infinite.CC 命中警报：音调（Alert 1–9/关）、 音量（1–15/Auto）、LED 颜色（8 色）与闪烁模式（常亮/慢闪/快闪）、 CC 暂停时间（命中后停留在该频率的 时长：3–60 秒或无限）。

Close Call Only 模式操作 / CLOSE CALL ONLY MODE

Press Channel to hold on any channel/frequency. Press Func then press and hold Avoid. See also Set Search Key. You will see activity on the 7 bands in the display. Bands with an * (asterisk) under them are turned off.

When the scanner detects a Close Call signal, CC Found! and Press Any Key display for the length of time set in Close Call Pause. Toggle Close Call Bands – Press the number keys to enable or disable each Close Call band.

Cancel a Hit – Turn the Scroll Control.

进入纯 CC 模式：保持任意频道后按 Func 并长按 Avoid （也可绑定到搜索键）。屏幕上显示 7 个频段

的活动情况，频段下带 *（星号）表示已关闭；按数字键 0–9 切换各 CC 频段开/关。命中时显示 "CC

Found!" 与 "Press Any Key"，持续时间为 CC Pause 设定值；转动滚轮取消命中。

操作 / Action英文原文（EN）中文译文（CN）
保持在命中频率 Holding on a HitPress System, Department, or Channel to hold on the Close Call Hit. Press Channel to cancel hold. Turn the Scroll Control to start Quick Search.按 System / Dept / Channel 保 持在命中频率； Channel 取消保 持；转动滚轮启动快速搜索。
查看上次命中 View Last HitPress System, Department, or Channel to recall the last hit. Press Channel to cancel hold.按 System / Dept / Channel 调 出上次命中。
回避命中 Avoiding HitsTemporary Avoids cancel when you cycle power. Press Avoid once to Temporary Avoid. Press quickly to toggle Permanent Avoid and Stop Avoiding when the frequency is in the display or in Search Hold mode. Review Avoids – Press Channel to hold on any Frequency, press Func then Avoid, scroll to each frequency and press E/yes to Stop Avoiding. Clear All Avoids – Press Channel to hold on any Frequency, press and hold Avoid.Avoid 一次=临时回避；保持中快 速连按=永久回避/解除循环。查看/ 清除回避方法同搜索模式。
衰减/调制/IFX/REVAttenuation – Press Func then 4(<ATT) for all bands. Modulation – Press Func then Channel(MOD) for all bands. Intermediate Frequency Exchange – Press Func then 7(IFX). Repeater Frequency – Press Func then press and hold 8(REV).Func + 4 全频段衰减； Func + Channel 调制； Func + 7 IFX； Func +长按 8 中继反转。
回放/录音/存储Replay the Last Transmissions – Press Replay; Press Channel to pause/resume; turn Scroll Control to select. Start/Stop Recording – Press Func then Replay. Storing – Press E/yes to store into Quick Save Department; press E/yes then ./no to store into an existing Department (Select Department), then Edit Channel menu, press Avoid to return.回放/录音同搜索模式（ Replay / Func + Replay ）。存储： E/yes 存 Quick Save 部门； E/yes 后 ./no 选指定部门，随 后进入频道编辑菜单， Avoid 返 回。
CC 菜单Press Func then Menu.快速打开 CC 菜单： Func + Menu 。