Antenna Tuner Operation; Automatic Antenna Selection - Icom IC-756PROIII Instruction Manual

■ Automatic antenna selection

The transceiver covers 0.1–60 MHz over 10 bands.
Each band key has a band memory which can memo-
rize 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 for the new
band. This function is convenient when you use 2 or 3
antennas.
To use the band memory, enter set mode and confirm
that "Auto" is selected as the [ANT] switch item.
(p. 101)
O T H E R S OT H E R S S E T
AGC AGC
F M S P L I T F M S PL IT O f f s e t ( H F ) O ff se t ( HF )
MID MID
F M S P L I T F M S PL IT O f f s e t ( 5 0 M ) O ff se t ( 50 M )
S PL IT L O C K S P L I T LO C K
VOX VOX
OFF OFF T u n e r T un er ( A u t o (A u to S t a r t ) St a r t)
T u n e r T un er ( P T T (P T T S t a r t ) S ta r t )
COMP COMP
[ A N T ] [ AN T] S w i t c h Sw i tc h
OFF OFF
WIDE WIDE R TT Y M a r k F r e q u e n c y R T T Y Ma rk Fr e qu en c y
é DEF DEF
è
• When OFF is selected, the [ANT] switch does not function
and [ANT1] is always selected.
• When "Manual" is selected, the [ANT] switch functions,
however, band memory does not function. In this case, you
must select an antenna manually.
• When "Auto" is selected (default setting), the antenna tuner
ON/OFF condition is also memorized in the band memory.
• When "Auto" or "Manual" is selected, the antenna tuner
ON/OFF condition is consistent with the [ANT] switch.

ANTENNA TUNER OPERATION

S E T
- 0 . 1 0 0 M H z -0 . 1 0 0M H z
-0 . 5 0 0M H z - 0 . 5 0 0 M H z
OF F O F F
OF F O F F
OF F O F F
A u t o Au t o
21 2 5 2 1 2 5
WIDE WIDE
[ANT]
• Antenna switch selection example
Under the following condition, "Auto" should be se-
lected as the [ANT] switch set mode item.
- When you use 2 antennas.
Under the following conditions, "Manual" should be se-
lected 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.
10
10
88