4
OPERATION
24
ï CW pitch control
The received CW audio pitch and monitored CW
audio pitch can be adjusted to suit your preferences
(300 to 900 Hz) without changing the operating fre-
quency.
q Push [SET] for 1 sec. to enter quick set mode.
w Push [∫ UP]/[√ DN] one or more times until “CW
PITCH” appears, then rotate the main dial to set
the desired pitch. (p. 29)
ï CW reverse mode
The CW-R (CW Reverse) mode receives CW signals
with a reverse side CW carrier point like that of LSB
and USB modes. Use this mode when interference
signals are near the desired signal and you want to
change the interference tone.
q Push [MODE] one or more times to select CW
mode.
w Push [MODE] for 1 sec. to switch between CW and
CW-R modes.
Push for 1 sec.
ï Electronic CW keyer
The IC-78 has an electronic keyer. Both keying speed
and weight (the ratio of dot : space : dash) can be set
in
quick set mode
.
•Setting the electronic keyer
q Push [MODE] one or more times to select CW
mode.
w While pushing and holding [SET], push [PWR] to
enter
initial set mode
.
e Push [∫ UP]/[√ DN] one or more times until “CW
PADDL” appears, then rotate the main dial to se-
lect the paddle type.
• When “ud” is selected, the up/down switches on the mi-
crophone can be use as a paddle.
• When using up/down switches as a paddle, squeeze
keying function is not available.
r Push [∫ UP]/[√ DN] one or more times until “KEY
RAT” appears, then rotate the main dial to select
the desired weight.
• Key weight can be selected from 2.8 to 4.5.
t Push [∫ UP]/[√ DN] one or more times until “KEY
SPD” appears, then rotate the main dial to select
the desired weight.
• Key weight can be select from 6 to 60.
Paddle operation from front panel MIC connector
Connect a CW paddle as at right to operate an elec-
tronic keyer from the front panel MIC connector.
•This function is available from the front panel mic con-
nector only.
• Be sure to select item “n,”“r,”or “oF” in CW PADDL in
initial set mode.
•Connect straight key to “DOT” side.
(600 Hz).
in the quick set mode only.
