Icom IC-7600 Instruction Manual - Page 63
◇ Functions for the PSK decoder indication, ◇ Setting the decoder threshold level, RTTY/PSK]
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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