Icom IC-756PRO2 Instruction Manual page 72

9
SET MODE
I Miscellaneous (others) set mode
T T u u n n e e r r ( ( A A u u t t o o S S t t a a r r t 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.
T T u u n n e e r r ( ( P P T T T T S S t t a a r r t 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).
[ [ A A N N T T ] ] S S w w i i t t c c h 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.
R R T T T T Y Y M M a a r r k k F F r r e e q q u u e e n n c c y y
This item selects the RTTY mark frequency. RTTY
mark frequency is switched between 1275, 1615 and
2125 Hz.
R R T T T T Y Y S S h h i i f f t t W W i i d d t t h h
This item adjusts the RTTY shift width. There are 3
selectable values: 170, 200 and 425 Hz.
R R T T T T Y Y K K e e y y i i n n g g P P o o l l a a r r i i t t y 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
70
(continued)
O O N N
Automatic tuner start
ON
O O N N
Automatic PTT start
ON
A A u u t t o o
Antenna switch is activated and the
selection is automatically memorized.
(default)
M M a a n n u u a a l l
Antenna switch is activated.
O O F F F F
Antenna switch is deactivated and
[ANT1] is always selected.
2 2 1 1 2 2 5 5
2125 Hz RTTY mark
frequency (default)
1 1 7 7 0 0
170 Hz RTTY shift
frequency (default)
N N o o r r m m a a l l
Normal polarity (default)
O O F F F F
Automatic tuner start
OFF (default)
O O F F F F
Automatic PTT start
OFF (default)
1 1 2 2 7 7 5 5
1275 Hz RTTY mark
frequency
4 4 2 2 5 5
425 Hz RTTY shift
frequency
R R e e v v e e r r s s e e
Reverse polarity