Adjustable Receiver Audio Filter - Yaesu FT-891 Advance Manual

Tools for Comfortable and Effective Reception

Adjustable Receiver Audio Filter

The FT-891 includes an adjustable receiver audio filter, which provides precise,
independent control of the low; and upper audio ranges.
1. Press and hold in the [ F ] key for one second
to activate the Menu mode.
2. Rotate the MULTI function knob to find Menu items "06-01" through "06-04" these
parameters apply to the adjustment of the receiver audio filter in the AM mode, Menu
items "07-01" through "07-04" apply to the adjustment of the RX audio filter in the CW
mode, Menu items "08-05" through "08-08" apply to the adjustment of the RX audio
filter in the DATA mode, Menu items "10-01" through "10-04" apply to the adjustment
of the RX audio filter in the RTTY mode, and Menu items "11-01" through "11-04" apply
to the adjustment of the RX audio filter in the SSB mode.
3. Press the MULTI function knob, then rotate it to adjust the receiver audio response
as desired.
4. Press the MULTI function knob to save the new setting.
5. Press the [ F ] key to exit the Menu mode and resume normal operation.
Mode
AM
CW
DATA
RTTY
SSB
Menu Item
06-01 [ AM LCUT FREQ ]
06-02 [ AM LCUT SLOPE ]
06-03 [ AM HCUT FREQ ]
06-04 [ AM HCUT SLOPE ]
07-01 [ CW LCUT FREQ ]
07-02 [ CW LCUT SLOPE ]
07-03 [ CW HCUT FREQ ]
07-04 [ CW HCUT SLOPE ]
08-05 [ DATA LCUT FREQ ]
08-06 [ DATA LCUT SLOPE ]
08-07 [ DATA HCUT FREQ ]
08-08 [ DATA HCUT SLOPE ]
10-01 [ RTTY LCUT FREQ ]
10-02 [ RTTY LCUT SLOPE ]
10-03 [ RTTY HCUT FREQ ]
10-04 [ RTTY HCUT SLOPE ]
11-01 [ SSB LCUT FREQ ]
11-02 [ SSB LCUT SLOPE ]
11-03 [ SSB HCUT FREQ ]
11-04 [ SSB HCUT SLOPE ]
37
Available Values
OFF/100 - 1000 ( Hz )
6 / 18 ( dB/oct )
700 - 4000 ( Hz ) /OFF
6 / 18 ( dB/oct )
OFF/100 - 1000 ( Hz )
6 / 18 ( dB/oct )
700 - 4000 ( Hz ) /OFF
6 / 18 ( dB/oct )
OFF/100 - 1000 ( Hz )
6 / 18 ( dB/oct )
700 - 4000 ( Hz ) /OFF
6 / 18 ( dB/oct )
OFF/100 - 1000 ( Hz )
6 / 18 ( dB/oct )
700 - 4000 ( Hz ) /OFF
6 / 18 ( dB/oct )
OFF/100 - 1000 ( Hz )
6 / 18 ( dB/oct )
700 - 4000 ( Hz ) /OFF
6 / 18 ( dB/oct )
FT-891 Advance Manual