Changing The Passband Width And Shift Amount - Kenwood TS-890S Instruction Manual

6 REJECTING INTERFERENCE

Changing the Passband Width and Shift Amount

When in the CW or SSB-DATA mode, the passband width and shift
amount of the DSP filter can be altered. When in the RTTY (FSK)
or PSK mode, the passband width can be changed. The passband
width can be changed so that the interfering signal falls outside the
bandwidth of the filter.
Target Signal
Interfering
Signal
.
1 Press the mode key to select CW, USB-DATA, LSB-
DATA, FSK or PSK mode.
2 Press and hold [IF FIL] to display the RX Filter
screen.
3 Turn the [LO/WIDTH] control to change the
passband width.
Turning the control to the right widens the passband width,
while turning to the left narrows it.
4 Turn the [HIGH/SHIFT] control to shift the frequency
band.
Turning the control to the right shifts the frequency to the high
bandwidth, while turning to the left shifts it to the low bandwidth.
• The shift frequency band cannot be adjusted in the FSK and
PSK modes.
• The amount of change and the filter shape are displayed on
the filter scope and RX Filter screen.
.
6-4
Interfering Signal
Passband Width (Hz)
Mode
Setting Value
50/ 80/ 100/ 150/ 200/
250/ 300/ 350/ 400/
450/ 500/ 600/ 700/
800/ 900/ 1000/ 1100/
1200/ 1300/ 1400/
SSB/ SSB-
1500/ 1600/ 1700/
DATA
1800/ 1900/ 2000/
2100/ 2200/ 2300/
2400/ 2500/ 2600
(default)/ 2700/ 2800/
2900/ 3000
50/ 80/ 100/ 150/ 200/
250/ 300/ 350/ 400/
450/ 500 (default)/
CW
600/ 700/ 800/ 900/
1000/ 1500/ 2000/
2500
250/ 300/ 350/ 400/
FSK 450/ 500 (default)/
1000/ 1500
50/ 80/ 100/ 150/ 200/
250/ 300/ 350/ 400/
450/ 500 (default)/
600/ 700/ 800/ 900/
PSK
1000/ 1200/ 1400/
1500/ 1600/ 1800/
2000/ 2200/ 2400/
2600/ 2800/ 3000
5 Press and hold [IF FIL] or press [ESC] to end the
process.
Shift Frequency (Hz)
Setting Value Step
50 to 1500 (default) to
50
2500
-800 to 0 (default) to
10
+800
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