Antenna Tuner Operation; Automatic Antenna Selection - Icom IC-718 Instruction Manual

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Table Of Contents

Table of Contents

Automatic antenna selection

The transceiver covers 0.03–60 MHz over 10 bands.

Each band key has a band memory which can mem-

orize a selected antenna (ANT1, ANT2, ANT1/RX an-

tenna and ANT2/RX antenna). When you change the

operating frequency beyond a band, the previously

used antenna is automatically selected. This function

is convenient when you use 2 or 3 antennas.

To use the band memory, enter set mode and con-

firm that "Auto" is selected as the [ANT] switch item.

(p. ??)

• Antenna selection mode: "Auto" (default)

The antenna tuner ON/OFF condition is also memo-

rized in the band memory.

[Example]: a 3.5/7 MHz antenna is connected to

[ANT1], a 21/28/50 MHz antenna is connected to

[ANT2]. When the antenna selector function is set to

"Auto," an antenna is automatically selected when the

transceiver changes bands.

• Antenna selection mode: "Manual"

[ANT] (MF1) functions, however, band memory does

not function. In this case, you must select an antenna

manually.

Under the following conditions, "Manual" should be

selected as the [ANT] switch set mode item.

- When using 1 antenna.

- When using an external antenna selector for more

than 3 antennas (except for receive antenna).

- When using an external antenna tuner.

NOTE: When "Auto" or "Manual" is selected, the

antenna tuner ON/OFF condition is consistent with

[ANT] (MF1).

• Antenna selection mode: "OFF"

[ANT] (MF1) does not function and [ANT1] is always

selected.