Rtty Operation; Presetting For Rtty; Tone Frequency; Rtty Reverse Mode - Icom IC-706MKIIG Instruction Manual

D
➀
Connect a terminal unit as at left.
➁
Select RTTY (or åRTTY—see bottom of page)
mode with [MODE].
➂
Select the desired FSK tone/shift frequencies and
keying polarity as below.
➃
Set the desired frequency with the main dial.
•Use [ ] in the
(F-1)
required.
➄
Operate the connected PC or TNC (TU).
➀
Push [DISPLAY] for 2 sec. to select quick set mode.
➁
Push [MENU] one or more times to select
; then rotate the main dial to select
the desired tone frequency (p. 48).
➀
Push [DISPLAY] for 2 sec. to select quick set mode.
➁
Push [MENU] one or more times to select
; then rotate the main dial to select
the desired shift frequency (p. 48).
➀
Push [DISPLAY] for 2 sec. to select quick set
mode.
➁
Push [MENU] one or more times to select
; then rotate the main dial to
select the desired keying polarity (p. 48).
D
➀
Connect a terminal unit as at left.
➁
Select SSB (LSB) mode with [MODE].
•Generally, LSB is used on the HF bands and FM is used
for the VHF band.
➂
Select the desired FSK tone/shift frequencies and
keying polarity as below.
➃
Set the desired frequency with the main dial.
•Use [ ] in the
(F-1)
required.
➄
Operate the connected PC or TNC (TU).
Same as above.
Same as above.
Same as above.
display when critical setting is
display when critical setting is
RECEIVE AND TRANSMIT
RTTY
VFO A
S1 3 5 7 9 20 40 60dB
P 5 10
O
RTTY
RTTY
RTTY
Received characters are occasionally garbled when
the receive signal is reversed between MARK and
SPACE. This reversal can be caused by incorrect
TNC connections, settings, commands, etc.
To receive a reversed RTTY signal correctly, select
åRTTY (RTTY reverse) mode.
➥ Push [MODE] for 1 sec. (while RTTY is selected) to
select åRTTY mode.
• Check the receive signal.
Normal
space mark
170 2125
Hz
Hz
BFO
displayed freq.
RTTY mode is selected.
CH
RTTY mark frequency
is set to 2125 Hz.
2125 and 1615 Hz are
available.
RTTY shift frequency is
set to 170 Hz.
170/200/425 Hz are
available.
RTTY keying is set to
'normal'.
normal: key open=mark
key close=space
reverse: key open=space
key close=mark
Reverse
space mark
2125 170
Hz
Hz
BFO
displayed freq.
4
36