E Cw Mode Operation - Icom IC-707 Instruction Manual

E CW mode operation
Connect a CW key to the [KEY] jack
on the rear panel.
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Terr Lad
NOTE: Only semi break-in operation is possible.
Full break-in operation and manual transmit/re-
; ceive switching are not possible.
Turn the [POWER] switch to the ON position.
Push the [MODE] switch several times until "CW"
appears.
e To use "CW-N," an optional FL-52A or FL-53A CW
NARROW FILTER is required.
Rotate the [AF] control clockwise to adjust the
desired audio output level.
Break-in delay time adjustment
The semi break-in function automatically returns to
receiving after the break-in delay time elapses from
the end of key down.
Basic CW side tone level adjustment
The speaker emits CW side tone according to key-
ing. The CW side tone level varies according to the
[AF] control.
Optional CW narrow filter
For better CW receiving during crowded band condi-
tions, an optional FL-52A or FL-53A CW NARROW
FILTER is useful. Refer to p. 35 for installation.
OPERATION 3
TU
4) Rotate the main dial to select an operating fre-
quency in the allowed range for CW mode.
5) When an optional HF automatic antenna tuner is
connected operate as following:
— AH-3 : Push and hold the [TUNER] switch.
(p. 23)
— AT-160 : lf SWR is high, push the [TUNER]
switch. (p. 24)
If required, activate the RIT function, preamp,
attenuator or noise blanker.
e Refer to p. 18 for details.
If required, adjust the [RF PWR] control to adjust
the RF output power level as described on page
at left.
Push the key down for transmitting. Release the
key for receiving.
If required, break-in delay time can be changed by
internal adjustment. Refer to p. 34 for adjustment
point.
If required, the receive audio and CW side tone
balance can be changed by internal adjustment.
Refer to p. 34 for adjustment point.
CW narrow filter specifications
—— [Center requeney | Passband witn_|
500 Hz/ ~6 dB
FL-53A} 455 kHz 250 Hz/— 6 dB