Kenwood TS-480SAT Operation Manual - Page 56

Dsp Filter For Data Communication, Ssb/ Fm, Dsp Rx Monitor

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10 REJECTING INTERFERENCE DSP FILTER FOR DATA COMMUNICATION (SSB/ FM) The DSP filter for Data Communication is designed to improve the reception tone readability, especially for PSK31 and other new digital modes. 1 Press [MENU/ F.LOCK] and turn the MULTI control to select Menu No. 45. 2 Press [ ]/ [ ] to select "oFF" or "on" (default is OFF). While Menu No. 45 is ON: 1 Press [FIL/ NAR]. • "WDH -- nnnn" (where "nnnn" is DSP filter bandwidth in Hz) appears. 2 Turn MULTI control to select the desired bandwidth. 3 Press [FIL/ NAR]. • "CTR -- nnnn" (where "nnnn" is a center filter frequency in Hz) appears. 4 Turn MULTI control to select the desired center frequency for the filter. 5 Press [FIL/ NAR] to complete the settings. The following center frequencies and bandwidth combinations are available. 1000/ 1500 Hz is used for the PSK31 operation and 2210 Hz is used for the RTTY operation. Center Freq. (Hz) 1000 50 Filter bandwidth (Hz) 100 250 500 1000 1500 2400 1500 50 100 250 500 1000 1500 2400 2210 50 100 250 500 1000 1500 2400 Note: While Menu No. 45 is ON, the DSP filter bandwidth {page 46} cannot be changed. DSP RX MONITOR The DSP RX Monitor function temporarily cancels IF filter selection and DSP filter settings so that you can confirm the conditions of current reception frequency nearby. To use the DSP RX Monitor function, first assign the PF key on the panel (or Mic PF keys) {page 64}. 1 Press [MENU/ F.LOCK] and turn the MULTI control to select Menu No. 48. 2 Press [ ]/ [ ] to select "64". 3 Press [MENU/ F.LOCK] to store the setting and exit the Menu mode. 4 Press [PF]. • While pressing [PF], the transceiver cancels IF filter selection and DSP filter settings to its default values. When you release [PF], the transceiver recovers the IF and DSP filter settings. 48

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48
10
REJECTING INTERFERENCE
DSP FILTER FOR DATA COMMUNICATION
(SSB/ FM)
The DSP filter for Data Communication is designed to
improve the reception tone readability, especially for
PSK31 and other new digital modes.
1
Press
[MENU/ F.LOCK]
and turn the
MULTI
control to select Menu No. 45.
2
Press
[
]
/
[
]
to select “oFF” or “on” (default is
OFF).
While Menu No. 45 is ON:
1
Press
[FIL/ NAR]
.
•
“WDH --
nnnn” (where “nnnn” is DSP filter
bandwidth in Hz) appears.
2
Turn
MULTI
control to select the desired
bandwidth.
3
Press
[FIL/ NAR]
.
•
“CTR --
nnnn” (where “nnnn” is a center filter
frequency in Hz) appears.
4
Turn
MULTI
control to select the desired center
frequency for the filter.
5
Press
[FIL/ NAR]
to complete the settings.
The following center frequencies and bandwidth
combinations are available.
1000/ 1500 Hz is used for the PSK31 operation and
2210 Hz is used for the RTTY operation.
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2
Note:
While Menu No. 45 is ON,
the DSP filter bandwidth {page 46}
cannot be changed.
DSP RX MONITOR
The DSP RX Monitor function temporarily cancels IF
filter selection and DSP filter settings so that you can
confirm the conditions of current reception frequency
nearby.
To use the DSP RX Monitor function, first assign the
PF key on the panel (or Mic PF keys) {page 64}.
1
Press
[MENU/ F.LOCK]
and turn the
MULTI
control to select Menu No. 48.
2
Press
[
]
/
[
]
to select “64”.
3
Press
[MENU/ F.LOCK]
to store the setting and
exit the Menu mode.
4
Press
[PF]
.
•
While pressing
[PF]
, the transceiver cancels IF
filter selection and DSP filter settings to its default
values.
When you release
[PF]
, the transceiver
recovers the IF and DSP filter settings.