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42
5
RECEIVE AND TRANSMIT
■
RTTY decoder
The transceiver has an RTTY decoder for Baudot
(mark freq.: 2125 Hz, shift freq.: 170 Hz, 45 bps).
An external terminal unit (TU) or terminal node con-
troller (TNC) is not necessary for receiving a Baudot
signal.
q
Push [EXIT/SET] several times to close a multi-
function screen, if necessary.
w
Push [CW/RTTY] to select RTTY mode.
e
Push [(F-3)DECODE] to turn the RTTY decoder
ON.
• RTTY decoder screen appears.
r
If the RTTY filter is turned OFF, push [RTTY FIL]
to turn the function ON.
• The RTTY decoder does not function when the RTTY
filter is turned OFF.
t
Push [(F-1)HOLD] to freeze the current screen.
• “HOLD” appears while the function is in use.
y
Push [(F-5)WIDE] to toggle the normal or wide
screen space.
u
Push [(F-2)CLR] for 1 sec. to clear the displayed
characters.
i
Push [EXIT/SET] to exit the RTTY decoder screen.
• Setting the decoder threshold level
Adjust the RTTY decoder threshold level if some
characters are displayed when no signal is received.
q
Call up the RTTY decoder screen as described at
left.
w
Push [(F-4)ADJ] to select the threshold level set-
ting condition.
e
Rotate the tuning dial to adjust the RTTY decoder
threshold level.
• Push [(F-3)DEF] to select the default condition.
r
Push [EXIT/SET] to exit the RTTY decoder screen.
The UnShift On Space (USOS) function and new
line code can be set in the miscellaneous (others)
set mode. (p. 71)
THRESHOLD
THRESHOLD
9
9
ADJ
ADJ
AGC
AGC
MID
MID
1/4
1/4
OFF
OFF
RTTY
RTTY
FIL
FIL
ON
ON
DEF
DEF
ADJ
ADJ
WIDE
WIDE
****
**** RTTY
RTTY Decode
Decode Monitor
Monitor ****
****
45bps
45bps BAUDOT
BAUDOT
Mark=2125,
Mark=2125, Shift=170
Shift=170
UnShift
UnShift On
On Space
Space support
support (SET-OTHERS)
(SET-OTHERS)
New
New Line
Line Code
Code selectable
selectable (SET-OTHERS)
(SET-OTHERS)
If
If RTTY-FIL
RTTY-FIL is
is OFF,
OFF, Please
Please turn
turn ON.
ON.
--------------------------------------------
--------------------------------------------
RTTY DECODE
RTTY DECODE
SFT
SFT
0
qw
:
pp
BW
BW
350
350
RTTY DECODE
RTTY DECODE
V F O
V F O
V F O
V F O
qr≥qot≥pp
14.100.00
R T T Y
R T T Y FIL
FIL2
R T T Y
R T T Y FIL
FIL2
T X
T X
AGC
AGC
MID
MID
1/4
1/4
OFF
OFF
RTTY
RTTY
FIL
FIL
ON
ON
METER
METER
Po
Po
P.AMP
P.AMP
1
ATT
ATT
OFF
OFF
ANT
ANT
1
HOLD
HOLD
CLR
CLR
ADJ
ADJ
WIDE
WIDE
****
**** RTTY
RTTY Decode
Decode Monitor
Monitor ****
****
45bps
45bps BAUDOT
BAUDOT
Mark=2125,
Mark=2125, Shift=170
Shift=170
UnShift
UnShift On
On Space
Space support
support (SET-OTHERS)
(SET-OTHERS)
New
New Line
Line Code
Code selectable
selectable (SET-OTHERS)
(SET-OTHERS)
If
If RTTY-FIL
RTTY-FIL is
is OFF,
OFF, Please
Please turn
turn ON.
ON.
--------------------------------------------
--------------------------------------------
CQ CQ CQ THIS IS JA3YUA JA3YUA OSAKA JAPAN
CQ CQ CQ THIS IS JA3YUA JA3YUA OSAKA JAPAN
CQ CQ CQ THIS IS JA3YUA JA3YUA OSAKA JAPAN
CQ CQ CQ THIS IS JA3YUA JA3YUA OSAKA JAPAN
CQ CQ CQ THIS IS JA3YUA JA3YUA OSAKA JAPAN
CQ CQ CQ THIS IS JA3YUA JA3YUA OSAKA JAPAN
THRESHOLD
THRESHOLD
9
AGC
AGC
MID
MID
1/4
1/4
OFF
OFF
RTTY
RTTY
FIL
FIL
ON
ON
HOLD
HOLD
CLR
CLR
ADJ
ADJ
WIDE
WIDE
****
**** RTTY
RTTY Decode
Decode Monitor
Monitor ****
****
45bps
45bps BAUDOT
BAUDOT
Mark=2125,
Mark=2125, Shift=170
Shift=170
UnShift
UnShift On
On Space
Space support
support (SET-OTHERS)
(SET-OTHERS)
New
New Line
Line Code
Code selectable
selectable (SET-OTHERS)
(SET-OTHERS)
If
If RTTY-FIL
RTTY-FIL is
is OFF,
OFF, Please
Please turn
turn ON.
ON.
--------------------------------------------
--------------------------------------------
THRESHOLD
THRESHOLD
9
RTTY DECODE
RTTY DECODE
■
RTTY tuning meter
The transceiver has an RTTY tuning indicator to be
tuned correctly and easily.
The RTTY tuning meter is automatically displayed
when the RTTY filter is turned ON.
q
Push [CW/RTTY] to select RTTY mode.
w
Push [RTTY FIL] to activate the RTTY filter and
RTTY tuning meter.
SFT
SFT
0
FIL2
FIL2
R T T Y
R T T Y
qw
:
pp
TX
TX
VFO
VFO
USB
USB
USB
USB
USB
USB
FIL2
FIL2
qr.qot.pp
qr.wpt.pp
14.100.00
14.100.00
14.100.00
14.100.00
1
1
VFO
VFO
BW
BW
350
350
METER
METER
Po
Po
P.AMP
P.AMP
1
ATT
ATT
OFF
OFF
ANT
ANT
1
RTTY tuning meter
IC-756PROII.qxd 02.1.8 15:51 Page 42