Adjusting the tx dsp equalizer, Equalizer -10, Adjusting the tx dsp equalizer -10 – Kenwood TS-990S User Manual
Page 178
9-10
9 TRANSMIT FUNCTIONS
SELECTING THE FREQUENCY CHARACTERISTICS OF
THE TX DSP EQUALIZER
The transceiver is equipped with six types of frequency
characteristics for the TX DSP equalizer. In addition, three
types of frequency characteristics are available, each
of which can be changed according to your preference.
Select a frequency characteristic as follows.
1 Press a mode key to select SSB, AM, or FM mode.
2 Press and hold [TXEQ/SEL] to open the TX Equalizer
screen.
3 Press [
] (F2) or [
] (F3), or rotate the
MULTI/CH control to select the desired characteristics
of the speech processor.
You can select the desired option from the equalizer effects
as shown in the table below.
Effect
Purpose
High Boost 1
(High-pass boost 1)
High-pass frequency components are
emphasized. This configuration is effective
for audio that contains low-pass frequency
components.
High Boost 2
(High-pass boost 2)
High-pass frequency components are
emphasized. This configuration provides
characteristics that halve the low-pass
attenuation level of High Boost 1.
Formant Pass
(Formant pass)
This configuration attenuates frequency
components outside the audio band, thus
providing legible characteristics.
Bass Boost 1
(Low-pass boost 1)
Low-pass frequency components are
emphasized. This configuration is effective
for audio that contains high-pass frequency
components.
Bass Boost 2
(Low-pass boost 2)
Low-pass frequency components are
emphasized. This configuration provides
characteristics that further emphasize the low-
passband, compared with Bass Boost 1.
Conventional
(Pseudo-analog
characteristics)
The frequency domain ranging from 600 Hz and
above is emphasized by 3 dB. This configuration
is suitable for communication characteristics
that loosely attenuate low-pass frequency
components.
User 1
(User Configuration 1)
You can save your preferred frequency
characteristics as User 1, User 2 and User 3. The
default is the flat characteristics.
User 2
(User Configuration 2)
User 3
(User Configuration 3)
Transmit Characteristics Curves
Frequency (kHz)
TX_OFF
TX_Hb1
TX_Hb2
TX_FP
TX_bb1
TX_bb2
TX_c
0
5
-5
-10
-30
-25
-20
-15
10
10
0
10
3
10
2
10
1
4 Press [ESC], or press and hold [TXEQ/SEL] to exit.
ADJUSTING THE TX DSP EQUALIZER
You can adjust the frequency characteristic using the TX
DSP equalizer to reach your preferred audio quality.
[F1] [F7]
[TXEQ/SEL]
[ESC]
[MULTI/CH]
Mode keys
1 Select SSB, AM, or FM mode on the transmit mode.
2 Press and hold [TXEQ/SEL] to open the TX Equalizer
screen.
3 Press [
] (F2) or [
] (F3), or rotate the
MULTI/CH control to select the desired characteristics.
4 Press [ADJ] (F4) to open the TX Equalizer screen.
5 Press [
] (F3) or [
] (F4) and select the