32
FT-891 Operating Manual
Operating Instructions 1
DIAL knob Lock
The
DIAL
knob may be locked to prevent accidental frequency change.
To lock the
DIAL
knob, press the
[
PWR/
LOCK
] key.
The “LOCK” icon will appear on the LCD.
To unlock the
DIAL
setting, and restore normal
tuning, press the
[
PWR/LOCK
] key again.
NB (Noise Blanker) (SSB/CW/RTTY/DATA/AM Modes)
The FT-891 includes an effective IF Noise Blanker, which can significantly reduce noise
caused by automotive ignition systems.
1. Press the assigned
[
C
](
NB
) key to turn
the Noise Blanker ON/OFF (When turning
ON,
and
will appear), the
blanking level pop-up screen will be dis-
played.
r
If the “NB” function is not assigned to an
[
A
], [
B
] or [
C
] key,
press the
[
F
] key
repeatedly to find the “FUNCTION-2” list
screen.
à
Rotate the
MULTI
function
knob to select “NB”
à
Press and hold the
[
A
], [
B
] or [
C
] key to assign the function.
r
Rotate the
MULTI
function knob to select “NB” in the “FUNCTION-1” list screen,
and then press the knob, to switch the Noise Blanker function ON/OFF.
2. When The blanking level pop-up screen is displayed, rotate the
MULTI
function
knob to adjust the blanking level to the point where the offending noise is best reduced
or eliminated.
NOTE:
To reset the blanking level to the factory default value, press and hold the
MULTI
function knob.
3. Press any key, except the
[
A
], [
B
], [
C
],
[
CLAR
] keys, or the
MULTI
function
knob, to save the new setting and return to normal operation.
r
When “
” is shown (after pressing the
[
C
](NB) key), rotate the
MULTI
function knob to adjust the blanking level. The blanking level may also be adjusted
from the “FUNCTION-1” list screen (see page 46).