Icom i746PRO, Инструкция по эксплуатации

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38
4
RECEIVE AND TRANSMIT
2001 NEW
F 1 F 2 F 3 F 4 F 5
F 1 F 2 F 3 F 4 F 5
F 1 F 2 F 3 F 4 F 5
A G C D U P 1 / 4 R T Y S C P
D E C F I L S E T
A D J
R T T Y - F I L O N
Push [F4]
Push [F2]
Appears while the RTTY decoder screen is freezed
with [F2] operation.
Push [F3] to erase the displayed characters.
D D
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-
nector (TNC) is not necessary for receiving a Baudot
signal.
q
Push [CW/RTTY] to select RTTY mode.
• After RTTY mode is selected, push [CW/RTTY] for 1 sec.
to select RTTY-R mode.
w
Push [MENU] several times to select M1 .
e
Push [F4 RTY ] to select RTTY menu.
r
Push [F4 FIL ] to turn the RTTY filter ON.
• The RTTY decoder does not function when the RTTY fil-
ter is turned OFF.
t
Push [F2 DEC ] to turn the RTTY decoder ON.
• RTTY decoder screen appears.
y
Push [F2] to freeze the current screen.
• “
H
” appears while the function is in use.
u
Push [F3] for 1 sec. to clear the displayed charac-
ters.
i
Push [MENU] to exit the RTTY decoder screen.
• Setting the decoder threshold level
Adjust the RTTY decoder threshold level if some char-
acters are displayed when no signal is received.
q
Call up the RTTY decoder screen as described
above.
w
Push [F1 ADJ ] to select the threshold level setting
condition.
e
Rotate the tuning dial to adjust the RTTY decoder
threshold level.
• Push [F3] for 1 sec. to select the default condition.
r
Push [MENU] to exit the RTTY decoder screen.
The number of line of text can be selected from 2 or
3 in the display. The UnShift On Space (USOS)
function and new line code can be set in the RTTY
set mode. (p. 39)
F 1 F 2 F 3 F 4 F 5
F 1 F 2 F 3 F 4 F 5
A D J
å 9
Push [F1]
Threshold level indication
IC-746PRO.qxd 02.4.2 11:31 Page 38