Ntenna Connection And Selection; R Eceive Antenna-I/O Selection - Icom IC-7851 Instruction Manual

13
ANTENNA TUNER OPERATION
■ Antenna connection and selection
The transceiver has four antenna connectors for the
HF/50 MHz bands, [ANT1], [ANT2], [ANT3], and
[ANT4].
You can automatically select an antenna to your op-
erating band if you assign an antenna to an operating
band in advance.
NOTE: [ANT4] can be set as receive only.
• Antenna selection mode: "Auto"
You can assign combinations of antenna connected
to [ANT1] to [ANT4] and an operating band. After an
antenna has been selected for use, the antenna is au-
tomatically selected whenever that band is used.
➥Antenna selection mode
➥Antenna memory settings
• Antenna selection mode: "Manual"
You can push [ANT]() to manually select a antenna
connected to [ANT1] to [ANT4].
➥Antenna selection mode
➥Temporary memory
(p. 13-5)
■ Receive Antenna-I/O selection
The transceiver has two independent receive antenna
connectors, [RX-ANT A] and [RX-ANT B] on the rear
panel.
You can connect a receive only antenna to IN, other
receivers to OUT, and an external pre-amplifier/Filter
between IN and OUT.
➥Receive antenna I/O setting
(p. 13-5)
(p. 13-3)
(p. 13-5)
(p. 13-6)
() Multi-function keys
• Antenna connection example
RX 50 MHz
only bands
ANT4
IN OUT IN
[RX-ANT B] [RX-ANT A]
13-2
21/28 MHz 3.5/7 MHz
bands bands
ANT3 ANT2 ANT1
OUT