
4
RECEIVE AND TRANSMIT
4-15
The functions for RTTY operation (Continued)
D
RTTY decoder
The transceiver has an RTTY decoder for Baudot (mark
frequency: 2125 Hz, shift frequency: 170 Hz, 45 bps).
An external terminal unit (TU) or terminal node con-
nector (TNC) is not necessary for receiving a Baudot
signal.
In the RTTY mode, push
q
MENU
(
C
) one or more
times to select the “M-2” screen (Menu M-2).
Touch [DEC](
w
D
) to display the RTTY decoder
screen.
• Touch [WIDE](
D
) to toggle the decode screen size be-
tween normal and wide.
Touch [HOLD](
e
D
) to turn ON the Hold function to
hold the current screen.
• “
H
” appears when this function is turned ON.
• Touch [HOLD](
D
) again to turn OFF the Hold function.
Touch [CLR](
r
D
) for 1 second to clear the displayed
characters.
• “
H
” disappears at the same time as the displayed char-
acters are cleared. (The hold function is cancelled.)
Push
t
MENU
(
C
) to return to the “M-2” screen (Menu
M-2).
• Setting the decoder threshold level
If some characters are displayed when no signal is re-
ceived, adjust the RTTY decoder threshold level.
In the RTTY mode, push
q
MENU
(
C
) one or more
times to select the “M-2” screen (Menu M-2).
Touch [DEC](
w
D
) to display the RTTY decoder
screen.
• Touch [WIDE](
D
) to toggle the decode screen size be-
tween normal and wide.
Touch [<1>](
e
D
) to display the RTTY decoder (2)
screen.
• Touch [<1>] or [<2>](
D
) to toggle between the RTTY de-
coder and the RTTY decode (2) screens.
Touch [ADJ](
r
D
) to select the threshold level adjust
-
ment mode.
Rotate the Dial to adjust the RTTY decoder thresh
-
t
old level.
• Touch [DEF](
D
) for 1 second to reset to the default set-
ting, if desired.
Push
y
MENU
(
C
) to exit the adjustment mode.
The number of the decoder display lines, the UnShift
On Space (USOS) function and new line code can
be set in the RTTY Set mode. (p. 4-16)
The
L
,
R
,
C
or
D
in the instructions indicate the
part of the controller.
L
: Left side,
R
: Right side,
C
: Center bottom
D
: Display (Touch screen)
Hold function
ON/OFF
Clear the character
Appears when the Hold function
is turned ON.
Touch [DEC]
Touch [ADJ]
Touch for 1 second to reset
the threshold level to default.
Threshold level display
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