Kenwood TS-890S Operation Manual - Page 109

TX Filter, TX Equalizer

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TRANSMIT FUNCTIONS 8 TX Filter Configure the bandwidth of the SSB/AM or SSB-DATA/AM-DATA TX filter to a low cutoff frequency or a high cutoff frequency. Displaying the Filter Scope during Transmission During transmission, an image of the passband for the TX filter and the spectrum of the TX audio can be displayed on the filter scope. Changing the TX Filter Bandwidth ● Please make use of the TX filter while ensuring that the occupied bandwidth in the SSB mode falls within the permitted range as stipulated by the relevant laws. Configuring the Low Cutoff Frequency in the SSB/AM Mode Configure in Menu [6-06] "TX Filter Low Cut (SSB/AM)" Setting Value 10/ 100 (default)/ 200/ 300/ 400/ 500 [Hz] Configuring the High Cutoff Frequency in the SSB/AM Mode Configure in Menu [6-07] "TX Filter High Cut (SSB/AM)" Setting Value 2500/ 2600/ 2700/ 2800/ 2900 (default)/ 3000/ 3500/ 4000 [Hz] Configuring the Low Cutoff Frequency in the SSBDATA/AM-DATA Mode Configure in Menu [6-08] "TX Filter Low Cut (SSBDATA/AM-DATA)" Setting Value 10/ 100 (default)/ 200/ 300/ 400/ 500 [Hz] Configuring the High Cutoff Frequency in the SSBDATA/AM-DATA Mode Configure in Menu [6-09] "TX Filter High Cut (SSBDATA/AM-DATA)" Setting Value 2500/ 2600/ 2700/ 2800/ 2900 (default)/ 3000/ 3500/ 4000 [Hz] . Configure in Menu [8-01] "TX Audio Waveform Display" Setting Value Off/ On (default) On: Displays an image of the passband for the TX filter and the audio spectrum of the TX audio on the filter scope during transmission in the SSB/FM/AM mode. Off: The filter scope area maintains the last display during transmission and the waveform is not displayed. ● During transmission in the CW, PSK and FSK modes, the image of the filter passband characteristics during reception is maintained. In modes other than those above, an image of the filter passband characteristics is displayed based on the HI/LO cut setting of the TX filter. In the FM (including DATA) mode, an image of the passband characteristics for the fixed filter is displayed. ● When the Audio Scope screen is displayed, the audio spectrum in the filter scope is not displayed. ● The setting for this function cannot be switched while transmission is in progress. ● When HI/SHIFT or LO/WIDTH is operated during transmission while the filter scope display during transmission is ON, the setting value of the RX filter changes and the RX filter display appears temporarily. TX Equalizer This item can be used to alter the frequency characteristics of the TX audio via DSP sound processing. It enables correction of the microphone frequency characteristics as well as transmission in the audio quality according to the audio properties or user's preferences. Turning ON/OFF TX Equalizer 1 Press the mode key to select either SSB, AM or FM mode. 2 Press F [TX EQ]. Pressing F [TX EQ] each time toggles the TX equalizer between ON and OFF. ● The TX equalizer turns OFF automatically when this transceiver is configured to a mode other than SSB, AM or FM. 8-5

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TX Filter
Configure the bandwidth of the SSB/AM or SSB-DATA/AM-DATA
TX filter to a low cutoff frequency or a high cutoff frequency.
Changing the TX Filter Bandwidth
●
Please make use of the TX filter while ensuring that the
occupied bandwidth in the SSB mode falls within the
permitted range as stipulated by the relevant laws.
Configuring the Low Cutoff Frequency in the SSB/AM
Mode
Configure in Menu [6-06]
“
TX Filter Low Cut
(SSB/AM)
”
Setting Value
10/ 100 (default)/ 200/ 300/ 400/ 500 [Hz]
Configuring the High Cutoff Frequency in the
SSB/AM Mode
Configure in Menu [6-07]
“
TX Filter High Cut
(SSB/AM)
”
Setting Value
2500/ 2600/ 2700/ 2800/ 2900 (default)/ 3000/
3500/ 4000 [Hz]
Configuring the Low Cutoff Frequency in the SSB-
DATA/AM-DATA Mode
Configure in Menu [6-08]
“
TX Filter Low Cut (SSB-
DATA/AM-DATA)
”
Setting Value
10/ 100 (default)/ 200/ 300/ 400/ 500 [Hz]
Configuring the High Cutoff Frequency in the SSB-
DATA/AM-DATA Mode
Configure in Menu [6-09]
“
TX Filter High Cut (SSB-
DATA/AM-DATA)
”
Setting Value
2500/ 2600/ 2700/ 2800/ 2900 (default)/ 3000/
3500/ 4000 [Hz]
Displaying the Filter Scope during Transmission
During transmission, an image of the passband for the TX filter and
the spectrum of the TX audio can be displayed on the filter scope.
Configure in Menu [8-01]
“
TX Audio Waveform
Display
”
Setting Value
Off/ On (default)
On:
Displays an image of the passband for the TX filter and the
audio spectrum of the TX audio on the filter scope during
transmission in the SSB/FM/AM mode.
Off:
The filter scope area maintains the last display during
transmission and the waveform is not displayed.
●
During transmission in the CW, PSK and FSK modes,
the image of the filter passband characteristics during
reception is maintained. In modes other than those
above, an image of the filter passband characteristics is
displayed based on the HI/LO cut setting of the TX filter.
In the FM (including DATA) mode, an image of the
passband characteristics for the fixed filter is displayed.
●
When the Audio Scope screen is displayed, the audio
spectrum in the filter scope is not displayed.
●
The setting for this function cannot be switched while
transmission is in progress.
●
When HI/SHIFT or LO/WIDTH is operated during
transmission while the filter scope display during
transmission is ON, the setting value of the RX filter
changes and the RX filter display appears temporarily.
TX Equalizer
This item can be used to alter the frequency characteristics of the
TX audio via DSP sound processing. It enables correction of the
microphone frequency characteristics as well as transmission in
the audio quality according to the audio properties or user’s
preferences.
Turning ON/OFF TX Equalizer
1
Press the mode key to select either SSB, AM or FM
mode.
2
Press F [TX EQ].
Pressing
F [TX EQ]
each time toggles the TX equalizer
between ON and OFF.
●
The TX equalizer turns OFF automatically when this
transceiver is configured to a mode other than SSB, AM
or FM.
TRANSMIT FUNCTIONS
8
8-5