Kenwood TS-990S - Manual (Page 124)

5-46
5 ASSISTING YOUR SMOOTH QSO
Index Contents
RTTY PARAMETERS
CONFIGURING THE MARK FREQUENCY
You can configure the mark signal frequency used for
communication in RTTY (FSK) mode. The tone at 1275 Hz
is called low tone and the tone at 2125 Hz is called high
tone. High tone is commonly used nowadays.
[F1] [F7]
[MENU] [MULTI/CH]
1 Select Group No. 2, "Decoding & Encoding", from the
Menu screen.
2 Access Menu 08, "FSK Tone Frequency".
3 Press [SELECT] (F4) to allow editing of the parameter
box.
4 Press [-] (F4) or [+] (F5) to select "1275 [Hz]" or "2125
[Hz]".
The default is "2125 [Hz]" (high tone).
5 Press [ ] (F1).
6 Press [MENU] to exit.
CONFIGURING THE RTTY SHIFT WIDTH
The difference in frequency between the mark signal and
the space signal is called shift width. You can configure the
shift width for communication in RTTY mode.
[F1] [F7]
[MENU] [MULTI/CH]
1 Select Group No. 2, "Decoding & Encoding", from the
Menu screen.
2 Access Menu 06, "FSK Spacing".
3 Press [SELECT] (F4) to allow editing of the parameter
box.
4 Press [-] (F4) or [+] (F5) to select "170 [Hz]", "200
[Hz]", "425 [Hz]", or "850 [Hz]".
The default is "170 [Hz]".
5 Press [ ] (F1).
6 Press [MENU] to exit.
Note:
◆ You cannot change the RTTY shift width while the RTTY Encode/
Decode screen is open.
◆ To operate in RTTY mode using the built-in demodulator, encoder
and decoder, configure “170 [Hz]” for Menu 2-06, “FSK Spacing”.