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70
9
SET MODE
■
Miscellaneous (others) set mode
(continued)
T
Tu
un
ne
er
r (
(A
Au
ut
to
o S
St
ta
ar
rt
t)
)
The internal antenna tuner has an automatic start ca-
pability which starts tuning if the SWR is higher than
1.5–3:1.
When “OFF” is selected, the tuner remains OFF even
when the SWR is poor (1.5–3:1). When “ON” is se-
lected, automatic tune starts even when the tuner is
turned OFF.
O
ON
N
Automatic tuner start
ON
O
OF
FF
F
Automatic tuner start
OFF (default)
T
Tu
un
ne
er
r (
(P
PT
TT
T S
St
ta
ar
rt
t)
)
Tuning of the internal antenna tuner can be started
automatically at the moment the PTT is pushed after
the operating frequency is changed (more than 1%
from last-tuned frequency).
O
ON
N
Automatic PTT start
ON
O
OF
FF
F
Automatic PTT start
OFF (default)
R
RT
TT
TY
Y M
Ma
ar
rk
k F
Fr
re
eq
qu
ue
en
nc
cy
y
This item selects the RTTY mark frequency. RTTY
mark frequency is switched between 1275, 1615 and
2125 Hz.
2
21
12
25
5
2125 Hz RTTY mark
frequency (default)
1
12
27
75
5
1275 Hz RTTY mark
frequency
R
RT
TT
TY
Y S
Sh
hi
if
ft
t W
Wi
id
dt
th
h
This item adjusts the RTTY shift width. There are 3
selectable values: 170, 200 and 425 Hz.
1
17
70
0
170 Hz RTTY shift
frequency (default)
4
42
25
5
425 Hz RTTY shift
frequency
R
RT
TT
TY
Y K
Ke
ey
yi
in
ng
g P
Po
ol
la
ar
ri
it
ty
y
This item selects the RTTY keying polarity. Normal or
reverse keying polarity can be selected.
When reverse polarity is selected, Mark and Space
are reversed.
- Normal
: Key open/close = Mark/Space
- Reverse : Key open/close = Space/Mark
N
No
or
rm
ma
al
l
Normal polarity (default)
R
Re
ev
ve
er
rs
se
e
Reverse polarity
[
[A
AN
NT
T]
] S
Sw
wi
it
tc
ch
h
You can set the antenna connector selection to auto-
matic, manual or non-selection (when using 1 an-
tenna only).
When “Auto” is selected, the antenna switch is acti-
vated and the band memory memorizes the selected
antenna. See p. 46 for details.
When “Manual” is selected, the antenna switch is ac-
tivated and selects an antenna manually.
When “OFF” is selected, the antenna switch is not ac-
tivated and does not function. The [ANT1] connector
is always selected in this case.
A
Au
ut
to
o
Antenna switch is activated and the
selection is automatically memorized.
(default)
M
Ma
an
nu
ua
al
l
Antenna switch is activated.
O
OF
FF
F
Antenna switch is deactivated and
[ANT1] is always selected.
IC-756PROII.qxd 02.1.8 15:52 Page 70