Manual Icom IC-7800 (page 135 of 206) (English)

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■ Antenna connection and selection

The IC-7800 has 4 antenna connectors for the

HF/50 MHz bands, [ANT1], [ANT2], [ANT3], and

[ANT4].

For each operating band the IC-7800 covers, there is a

band memory which can memorize a selected an-

tenna. When you change the operating frequency be-

yond a band, the previously used antenna is automat-

ically selected (see below) for the new band. This

function allows automatic switching of 4 separate an-

tennas for HF and 50 MHz bands operation.

• Antenna selection mode: “Auto”

After an antenna has been selected for use (by push-

ing [ANT]), the antenna is automatically selected

whenever that band is used.

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

[ANT1], a 21/28 MHz antenna is connected to [ANT2],

a 50 MHz antenna is connected to [ANT3]. When the

antenna selector function is set to “Auto,” an antenna

is automatically selected when changing bands.

[ANT4] can be used for receive only.

• Antenna selection mode: “Manual”

When “Manual” is selected, you can use the all an-

tenna connectors, [ANT1] [ANT2], [ANT3] and [ANT4],

however, band memory does not function. In this case

you must select an antenna manually.

• Antenna selection mode: “OFF”

In this case, only [ANT1] antenna connector can be

used. [ANT] switch does not function.

[ANT]

ANT 1

ANT 2

ANT 3

ANT 4

3.5/7 MHz

bands

21/28 MHz

bands

50 MHz

bands

only

[ANT]

ANTENNA TUNER OPERATION

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Icom IC-7800 Manual

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