Changing The Bandwidth Of The Tx Filter; Tx Dsp Equalizer; Switching The Tx Dsp Equalizer On Or Off - Kenwood TS-990S Instruction Manual

CHANGING THE BANDWIDTH OF THE TX FILTER

The transceiver is equipped with TX filters A to C. You
can change the bandwidth for SSB, AM and FM modes
independently. You can select a TX filter optimal to the
selected operating mode.
F[TX-FIL]
[ESC] [F1] [F7]
Mode keys
1 Press a mode key to select SSB, AM, FM, SSB-DATA,
or FM-DATA mode.
2 Press and hold [TX-FIL] (F) to open the TX Filter
screen.
3 Press [TX-FIL] (F2) to select a TX Filter.
Each time you press [TX-FIL] (F2), the filter cycles as follows:
FIL-A > FIL-B > FIL-C.
4 Press [LO/HI] (F3) to select the cutoff frequency.
You can select the low-cut frequency or the high-cut
frequency.
5 Press [-] (F4) or [+] (F5), or rotate the MULTI/CH
control to select the low cutoff frequency and the high
cutoff frequency.
• Each time you press [-] (F4) or [+] (F5) or rotate the
MULTI/CH control one step, the bandwidth cycles as
follows: Rotate the MULTI/CH control counterclockwise to
cycle the cutoff frequencies in the reverse sequence.
Low Cut: 10, 100, 200, 300, 400, 500 Hz
High Cut: 2500, 2600, 2700, 2800, 2900, 3000, 3500, 4000
Hz
• The default is 300 Hz for the low-cut frequency and 2700
Hz for the high-cut frequency.
6 Press [ESC], or press and hold [TX-FIL] (F) to exit.
Contents Index

TX DSP EQUALIZER

The Digital signal processing (DSP) allows you to
change the frequency characteristics of the transmitting
audio signal. This function makes it possible to correct
the frequency characteristics of the microphone and
audio transmission quality according to your voice
characteristics and preference.
[MULTI/CH]

SWITCHING THE TX DSP EQUALIZER ON OR OFF

1 Press a mode key to select SSB, AM, or FM mode.
2 Press [TXEQ/SEL] to enable or disable the TX DSP
Equalizer.
"TXEQnnn" appears while the TX DSP equalizer is active
(refer to the list below for the "nnn" display). "TXEQOFF"
appears while the TX DSP equalizer is inactive.
• TXEQHB1: High Boost 1 is selected
• TXEQHB2: High Boost 2 is selected
• TXEQFP: Formant Pass is selected
• TXEQBB1: Bass Boost 1 is selected
• TXEQBB2: Bass Boost 2 is selected
• TXEQC: Conventional is selected
• TXEQU1 - U3: User 1, 2, or 3 is selected
Note:
◆ The TX DSP equalizer will be inactive automatically if the
transceiver enters a mode other than SSB, AM or FM.
[ESC] [F1] [F7] Mode keys
TRANSMIT FUNCTIONS 9
[MULTI/CH]
[TXEQ/SEL]
9-9