Icom IC-7600 Instruction Manual - Page 63

◇ Functions for the PSK decoder indication, ◇ Setting the decoder threshold level, RTTY/PSK]

Page 63 highlights

4 RECEIVE AND TRANSMIT D Functions for the PSK decoder indication q Push a band key to select the desired band. w Push [RTTY/PSK] to select PSK. • After PSK mode is selected, push and hold [RTTY/ PSK] for 1 sec. to toggle between PSK and PSK-R modes. • "PSK" or "PSK-R" appears. e P ush [DECODE] (F-3) to display the decode screen. • When tuned into a PSK signal, decoded characters are displayed in the RX contents screen. r P ush [HOLD/CLR] (F-2) to freeze the current screen. • " " appears while the function is in use. • Push [HOLD/CLR] (F-2) again to release the function. t P ush and hold [HOLD/CLR] (F-2) for 1 sec. to clear the displayed characters. • " " indicator disappears at the same time when the hold function is in use. y P ush [WIDE] (F-6) to toggle the PSK decode screen size from normal and wide. • S/RF meter type during wide screen indication can be selected in display set mode. (p. 129) u P ush [AFC/NET] (F-5) to turn the AFC function ON. • " " 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. 59) NOTE: The AFC function may not tune the signal properly when a weak PSK signal is received. DECODE AFC/NET WIDE F-3 F-5 F-6 Band keys F-2 RTTY/PSK HOLD/CLR • AFC/NET indications EXIT/SET "AFC" and "NET" Offset frequency indicators i P ush [AFC/NET] (F-5) again to turn the NET func- tion ON. • " " appears additionally. o P ush and hold [AFC/NET] (F-5) for 1 sec. to add the offset frequency to the displayed frequency. !0 Push [EXIT/SET] to close the PSK decode screen. D Setting the decoder threshold level Adjust the PSK decoder threshold level if some characters are displayed when no signal is received. q C all up the PSK decode screen as described above. w P ush [ADJ] (F-4) to select the threshold level setting condition. e R otate the main dial to adjust the PSK decoder threshold level. • Push and hold [DEF] (F-5) for 1 sec. to select the default setting. r P ush [ADJ] (F-4) to exit from the threshold level setting condition. F-4 F-5 ADJ DEF Main dial Threshold level indication bar 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 56

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D
Functions for the PSK decoder indication
q
Push a band key to select the des±red band.
w
Push
[RTTY/PSK]
to select PSK.
After PSK mode ±s selected, push and hold
[RTTY/
PSK]
for 1 sec. to toggle between PSK and PSK-R
modes.
• “PSK” or “PSK-R” appears.
e
Push
[DECODE]
(F-3)
to d±splay the decode
screen.
When tuned ±nto a PSK s±gnal, decoded characters are
d±splayed ±n the RX contents screen.
r
Push
[HOLD/CLR] (F-2)
to freeze the current
screen.
• “
” appears wh±le the funct±on ±s ±n use.
• Push
[HOLD/CLR] (F-2)
aga±n to release the funct±on.
t
Push and hold
[HOLD/CLR] (F-2)
for 1 sec. to
clear the d±splayed characters.
” ±nd±cator d±sappears at the same t±me when
the hold funct±on ±s ±n use.
y
Push
[WIDE] (F-6)
to toggle the PSK decode
screen s±ze from normal and w±de.
S/RF meter type dur±ng w±de screen ±nd±cat±on can be
selected ±n d±splay set mode. (p. 129)
u
Push
[AFC/NET]
(F-5)
to turn the AFC funct±on
ON.
• “
” appears.
If a PSK s±gnal ±s rece±ved w±th±n the AFC tun±ng range,
the decoder automat±cally tunes ±nto the s±gnal and the
offset frequency ±s d±splayed.
The AFC tun±ng range ±s set to ²15 Hz as the default.
Opt±onal ²8 Hz sett±ng ±s ava±lable ±n PSK decode set
mode. (p. 59)
NOTE:
The AFC funct±on may not tune the s±gnal
properly when a weak PSK s±gnal ±s rece±ved.
i
Push
[AFC/NET]
(F-5)
aga±n to turn the NET func-
t±on ON.
• “
” appears add±t±onally.
o
Push and hold
[AFC/NET]
(F-5)
for 1 sec. to add
the offset frequency to the d±splayed frequency.
!
0
Push
[EXIT/SET]
to close the PSK decode screen.
D
Setting the decoder threshold level
Adjust the PSK decoder threshold level ±f some char-
acters are d±splayed when no s±gnal ±s rece±ved.
q
Call up the PSK decode screen as descr±bed
above.
w
Push
[ADJ] (F-4)
to select the threshold level set-
t±ng cond±t±on.
e
Rotate the ma±n d±al to adjust the PSK decoder
threshold level.
Push and hold
[DEF] (F-5)
for 1 sec. to select the
default sett±ng.
r
Push
[ADJ] (F-4)
to ex±t from the threshold level
sett±ng cond±t±on.
EXIT/SET
F-3
F-6
F-5
Band keys
F-2
RTTY/PSK
HOLD/CLR
WIDE
DECODE
AFC/NET
• AFC/NET indications
“AFC” and “NET”
indicators
Offset frequency
Main dial
F-4
F-5
DEF
ADJ
Threshold level indication bar
56
4
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