37
Tools for Comfortable and Effective Reception
FT-891 Advance Manual
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
Menu Item
Available Values
AM
06-01 [AM LCUT FREQ]
OFF/100 - 1000 (Hz)
06-02 [AM LCUT SLOPE]
6 / 18 (dB/oct)
06-03 [AM HCUT FREQ]
700 - 4000 (Hz)/OFF
06-04 [AM HCUT SLOPE]
6 / 18 (dB/oct)
CW
07-01 [CW LCUT FREQ]
OFF/100 - 1000 (Hz)
07-02 [CW LCUT SLOPE]
6 / 18 (dB/oct)
07-03 [CW HCUT FREQ]
700 - 4000 (Hz)/OFF
07-04 [CW HCUT SLOPE]
6 / 18 (dB/oct)
DATA
08-05 [DATA LCUT FREQ]
OFF/100 - 1000 (Hz)
08-06 [DATA LCUT SLOPE]
6 / 18 (dB/oct)
08-07 [DATA HCUT FREQ]
700 - 4000 (Hz)/OFF
08-08 [DATA HCUT SLOPE]
6 / 18 (dB/oct)
RTTY
10-01 [RTTY LCUT FREQ]
OFF/100 - 1000 (Hz)
10-02 [RTTY LCUT SLOPE]
6 / 18 (dB/oct)
10-03 [RTTY HCUT FREQ]
700 - 4000 (Hz)/OFF
10-04 [RTTY HCUT SLOPE]
6 / 18 (dB/oct)
SSB
11-01 [SSB LCUT FREQ]
OFF/100 - 1000 (Hz)
11-02 [SSB LCUT SLOPE]
6 / 18 (dB/oct)
11-03 [SSB HCUT FREQ]
700 - 4000 (Hz)/OFF
11-04 [SSB HCUT SLOPE]
6 / 18 (dB/oct)
