D Functions For The Psk Decoder Display; D Setting The Decoder Threshold Level - Icom IC-7700 Instruction Manual

D Functions for the PSK decoder display

AFC/NET
F-3
RTTY/PSK
HOLD/CLR
F-2
• AFC/NET indications
"AFC" and "NET" indicators

D Setting the decoder threshold level

WIDE
F-7
EXIT/SET
Offset frequency
q Push a band key to select the desired band.
w Push RTTY/PSK
• After PSK mode is selected, push and hold
for 1 sec. to toggle between PSK and PSK-R modes.
• "PSK" or "PSK-R" appears.
e Push [DECODE]
screen.
• When tuned into a PSK signal, decoded characters are
displayed in the RX contents screen.
r Push [HOLD/CLR]
screen.
• " " appears while the function is in use.
HOLD
• Push [HOLD/CLR]
t Push and hold [HOLD/CLR]
clear the displayed characters.
•
" " indicator disappears at the same time when
HOLD
the displayed characters are cleared. (The hold func-
tion is cancelled.)
y Push [AFC/NET]
ON.
• " AFC " appears.
• If a PSK signal is received within the AFC tuning range,
the decoder automatically tunes into the signal and the
offset frequency is displayed.
• The AFC tuning range is set to ±15 Hz as the default.
Optional ±8 Hz setting is available in PSK decode set
mode. (p. 4-26)
NOTE: The AFC function may not tune the signal
properly when a weak PSK signal is received.
u Push [AFC/NET]
tion ON.
• " NET " is displayed.
i Push and hold [AFC/NET]
the offset frequency to the displayed frequency.
o Push [WIDE]
screen size between normal and wide.
• S/RF meter type during wide screen display can be se-
lected in display set mode. (pgs. 3-11, 12-10)
!0 Push
EXIT/SET
Adjust the PSK decoder threshold level if some char-
acters are displayed when no signal is received.
q Call up the PSK decode screen as described
above.
w Push [ADJ]
F-5
ting condition.
e Rotate the main dial to adjust the PSK decoder
threshold level.
• Push and hold [DEF]
fault setting.
r Push [ADJ] F-5
setting condition.
4-23
RECEIVE AND TRANSMIT
to select PSK.
F-3 to display the decode
to freeze the current
F-2
again to release the function.
F-2
F-2 for 1 sec. to
F-3 to turn the AFC function
F-3 again to turn the NET func-
F-3 for 1 sec. to add
to toggle the PSK decode
F-7
to close the PSK decode screen.
to select the threshold level set-
for 1 sec. to select the de-
F-6
to exit from the threshold level
4
RTTY/PSK