Antenna Tuner Operation · 天线调谐器操作

内置自动天线调谐器可在 16.7 ~ 150 Ω（SWR 小于 3:1）的范围内，自动将收发信机与天线匹配。

The internal automatic antenna tuner automatically matches the transceiver to the antenna within the range of 16.7 ~ 150 Ω (SWR of less than 3:1).

调谐器工作一段时间并完成天线匹配后，最多 100 组闭锁继电器的组合将作为预置点记忆下来。如果调谐频率偏离当前记忆的频率点超过 ± 1.5%，调谐器会使用下一个记忆点的继电器组合（如果该点在新频率的 ± 1.5% 范围内）。如果该范围内没有记忆点，调谐器将切换到旁路状态。

When the tuner has matched an antenna over some period of operating time, latching relays of up to 100 combinations have been memorized as preset points. If the frequency is tuned over ± 1.5% of the current memorized frequency point, the tuner uses the relay combinations of the next memorized point (if it is within ± 1.5% of the new frequency). If there are no memorized points with the range, the tuner switches to bypass.

• 安装新天线或想要更改天线设置时，可通过 TUNER set 屏幕上的 "<<Preset Memory Clear>>" 项目清除内置天线调谐器的全部预置点。（见 12-5 节）
MENU » SET > Function > Tuner > <<Preset Memory Clear>>

• When you install a new antenna, or you want to change the antenna settings, you can clear the all of the internal antenna tuner preset points with the "<<Preset Memory Clear>>" item on the TUNER set screen. (p. 12-5)
MENU » SET > Function > Tuner > <<Preset Memory Clear>>

• 在 TUNER set 屏幕的 "[TUNER] Switch" 项目中，可选择在每个波段按 TUNER 后是否保存内置天线调谐器的状态。（见 12-5 节）
MENU » SET > Function > Tuner > [TUNER] Switch

• You can select whether or not to save the internal antenna tuner's status after pushing TUNER on each band in the "[TUNER] Switch" item on the TUNER set screen. (p. 12-5)
MENU » SET > Function > Tuner > [TUNER] Switch

1按 TUNER 开启内置天线调谐器。
• 调谐器开启时显示 "TUNE"。

1Push TUNER to turn ON the internal antenna tuner.
• "TUNE" is displayed when the tuner is ON.

2调谐天线。
要调谐天线，请参阅下文的「手动调谐」或「PTT 启动调谐」。

2Tune the antenna.
To tune the antenna, see "Manual tuning" or "PTT Tuner start" below.

您可以在首次发射前手动调谐天线。

You can manually tune the antenna before transmitting for the first time.

1长按 TUNER 1 秒开始手动调谐。
• 调谐器在调谐 2~3 秒后将 SWR 降至 1.5:1 以下。
调谐过程中 "TUNE" 红色闪烁。

1Hold down TUNER for 1 second to start manual tuning.
• The tuner reduces the SWR to less than 1.5:1 after 2~3 seconds of tuning.
While tuning, "TUNE" blinks red.

2调谐完成后显示 "TUNE"。
如果调谐失败，"TUNE" 消失，调谐电路自动进入旁路状态。

2After tuning, "TUNE" is displayed.
If the tuner cannot tune, "TUNE" disappears and the tuning circuit is automatically bypassed.

频率改变后（距上次调谐频率超过 1%）按 PTT 时，调谐器总会启动。该功能为新频率上的首次发射调谐天线。

The tuner is always activated when PTT is pushed after the frequency is changed (more than 1% from last-tuned frequency). This function tunes the antenna for the first transmission on a new frequency.

该功能可在 TUNER set 屏幕的 "PTT Start" 项目中开启。（见 12-5 节）
MENU » SET > Function > Tuner > PTT Start

This function can be turned ON in the "PTT Start" item of the TUNER set screen. (p. 12-5)
MENU » SET > Function > Tuner > PTT Start

• 重复进行几次手动调谐。

• Repeat manual tuning several times.

• 即使调谐器第一次无法调谐天线，第二次调谐时也可能成功。

• Even if the tuner cannot tune the antenna on the first tuning, it may success at the second tuning.

• 某些天线（尤其是低波段天线）的带宽较窄。这些天线在其带宽边缘可能无法调谐，因此请按如下方式调谐此类天线：

• Some antennas, especially for the low bands, have a narrow bandwidth. These antennas may not tune at the edge of their bandwidth, therefore, tune such an antenna as follows:

（示例）：假设您有一副天线，其在 3.55 MHz 时 SWR 为 1.5:1，在 3.8 MHz 时 SWR 为 3:1。

(Example): Suppose you have an antenna which has an SWR of 1.5:1 at 3.55 MHz and an SWR of 3:1 at 3.8 MHz.

1设置为 3.55 MHz，长按 TUNER 1 秒开始手动调谐。

1Set 3.55 MHz, and hold down TUNER for 1 second to start manual tuning.

2设置为 3.80 MHz，长按 TUNER 1 秒开始手动调谐。

2Set 3.80 MHz, and hold down TUNER for 1 second to start manual tuning.

选购的 AH-730 天线调谐器可将 IC-7300 与长于 7 m/23 ft 的长线天线（1.8 MHz 至 50 MHz 之间）进行匹配。

The optional AH-730 antenna tuner matches the IC-7300 to a long wire antenna more than 7 m/23 ft long (between 1.8 MHz and 50 MHz).

选购的 AH-740 自动调谐天线配合附带的鞭状天线，可覆盖 2.5 至 30 MHz 范围。

The optional AH-740 automatic tuning antenna covers 2.5 to 30 MHz range with a supplied whip antenna.

1开启收发信机。
• 每次按 TUNER，"TUNE" 显示或熄灭，AH-730 或 AH-740 随之开启或关闭（旁路）。

1Turn ON the transceiver.
• Each time you push TUNER, "TUNE" is displayed or goes out, and the AH-730 or AH-740 is turned ON or OFF (bypassed).

2长按 TUNER 1 秒开始手动调谐。
• 调谐器在调谐 2~3 秒后将 SWR 降至 2:1 以下。
调谐过程中 "TUNE" 红色闪烁。
如果调谐 15 秒后调谐器仍无法将 SWR 降至 2:1 以下，"TUNE" 熄灭。

2Hold down TUNER for 1 second to start manual tuning.
• The tuner reduces the SWR to less than 2:1 after 2~3 seconds of tuning.
While tuning, "TUNE" blinks red.
If the tuner cannot reduce the SWR to less than 2:1 after 15 seconds of tuning, "TUNE" goes out.

3调谐完成后显示 "TUNE"。
当长线天线无法调谐时，"TUNE" 熄灭。此时 AH-730 被旁路，天线线直接接入。

3After tuning, "TUNE" is displayed.
When the long wire antenna cannot be tuned, "TUNE" goes out. In that case, the AH-730 is bypassed and the wire is directly connected.

使用非 Icom 外置天线调谐器时，务必在连接外置天线调谐器之前关闭内置天线调谐器。否则，由于两个调谐器（内置与外置）会同时开始调谐，调谐可能失败。

When you use a non-Icom external antenna tuner, be sure to turn OFF the internal antenna tuner before connecting the external antenna tuner. Otherwise, the tuning may fail because both antenna tuners (internal and external) will simultaneously start tuning.

详情请参阅该天线调谐器的使用说明书。

See the antenna tuner's instruction manual for details.

使用 IC-PW2 的天线调谐器时，务必在连接 IC-PW2 之前关闭内置天线调谐器。

When you use the IC-PW2's antenna tuner, be sure to turn OFF the internal antenna tuner before connecting the IC-PW2.

• 要调谐到所选工作频率，需要进行 IC-PW2 的联动手动调谐操作。在 IC-PW2 上长按 TUNER 1 秒，收发信机将自动开始发射，以执行联动手动调谐。

• To tune to the selected operating frequency, the IC-PW2's linked manual tuning operation is needed. When holding down TUNER on the IC-PW2 for 1 second, the transceiver automatically starts transmitting to perform the linked manual tuning.

联动手动调谐期间，可以更改收发信机的仪表读数。

During the linked manual tuning, the meter readout of the transceiver can be changed.

要取消联动手动调谐，请按收发信机上的 TUNER。取消后，TUNER 上的指示灯熄灭。

To cancel the linked manual tuning, push TUNER on the transceiver. When the linked manual tuning is canceled, the indicator on TUNER goes out.

详情请参阅 IC-PW2 的使用说明书。

See the IC-PW2's instruction manual for details.

应急调谐模式（Emergency mode (Tuner)）可让您在紧急情况下使用内置天线调谐器，但最大输出功率限制为 50 W。

The Emergency mode (Tuner) enables you to use the internal antenna tuner in an emergency situation, but limits the maximum output power to 50 W.

在紧急情况下，如果您手中唯一的天线驻波比很高，即使 SWR 超过 3:1，也可以使用天线调谐器。

In an emergency situation, where the only antenna you have has a high SWR, you can use the antenna tuner even if the SWR is more than 3:1.

1打开 EMERGENCY 屏幕。
MENU » SET > Others > Emergency

1Open the EMERGENCY screen.
MENU » SET > Others > Emergency

2触摸 "Tuner"。

2Touch "Tuner."

3触摸 [OK]。

3Touch [OK].

4触摸 "<<Restart to SET>>" 重启收发信机。

4Touch "<<Restart to SET>>" to restart the transceiver.

插入 "✓" 标记。

"✓" is inserted.

• 内置天线调谐器关闭时显示。

• Displayed when the internal antenna tuner is OFF.

• 调谐时闪烁。

• Blinks while tuning.

• 内置天线调谐器开启时显示。

• Displayed when the internal antenna tuner is ON.

• 收发信机进入应急调谐模式（Emergency mode (Tuner)）。

• The transceiver enters the Emergency mode (Tuner).