Kenwood TS-990S Operation Manual - Page 149

Changing The Af Filter Type

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■ Behavior of the HI/SHIFT and LO/WIDTH controls in SSB-DATA mode 1 Select Group No. 6, "TX/RX Filters & Misc.", from the Menu screen. 2 Access Menu 08, "Filter Control in SSB-DATA Mode (High/Shift and Low/Width)". 3 Press [SELECT] (F4) to allow editing of the parameter box. REJECTING INTERFERENCE 6 CHANGING THE AF FILTER TYPE Like the IF filters, the passband width of audio frequencies can be selected from three types (Narrow, Medium, and Wide).  4 4 Press [-] (F4) or [+] (F5) to select either "High & Low Cut" or "Shift & Width" for the behavior of the control. The changes of the shift and filter type appear on the RX Filter screen. The default is "Shift & Width". If "High & Low Cut" is selected: The value of the cutoff frequency (either low or high) will vary. If "Shift & Width" is selected: Values for the passband width and the amount of the shift will vary. 5 Press [ ] (F1). 6 Press [MENU] to exit. 1 Press and hold [FIL/SEL] (M) or [FIL/SEL] (S) to open the RX Filter screen. The selected band and the mode name while receiving appear, and the selected RX filter (A, B, or C) will be enabled. 2 Press [FILTER] (F2) or [FIL/SEL] (M) or [FIL/SEL] (S) to select the receive filter. Each press cycles the RX filter through A > B > C. 3 Press [AF] (F5) to enable to edit the AF Filter. 4 Subsequently, press [AF] (F5) to select the filter shape. • Each time you press [AF] (F5), the selection cycles as follows: Medium > Wide > Narrow >Medium Rotating the MULTI/CH control can also change the filter shape. • The default is "Medium". 5 Press [ESC] to exit. Pressing [FIL/SEL] (M) or [FIL/SEL] (S) closes the RX Filter screen as well. Contents Index 6-5

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REJECTING INTERFERENCE 6
6-5
Index
Contents
■ Behavior of the HI/SHIFT and LO/WIDTH controls
in SSB-DATA mode
1
Select Group No. 6, "TX/RX Filters & Misc.", from the
Menu
screen.
2
Access Menu 08, "Filter Control in SSB-DATA Mode
(High/Shift and Low/Width)".
3
Press
[SELECT]
(F4) to allow editing of the parameter
box.
4
Press
[-]
(F4) or
[+]
(F5) to select either "High & Low
Cut" or "Shift & Width" for the behavior of the control.
The changes of the shift and filter type appear on the
RX
Filter
screen. The default is "Shift & Width".
If "High & Low Cut" is selected:
The value of the cutoff frequency (either low or high) will vary.
If "Shift & Width" is selected:
Values for the passband width and the amount of the shift will
vary.
5
Press
[
]
(F1).
6
Press
[MENU]
to exit.
CHANGING THE AF FILTER TYPE
Like the IF filters, the passband width of audio frequencies
can be selected from three types (Narrow, Medium, and
Wide).
[F1]~[F7]
[ESC]
[FIL/SEL] (S)
[MULTI/CH]
[FIL/SEL] (M)
1
Press and hold
[FIL/SEL]
(M) or
[FIL/SEL]
(S) to open
the
RX Filter
screen.
The selected band and the mode name while receiving
appear, and the selected RX filter (A, B, or C) will be enabled.
2
Press
[FILTER]
(F2) or
[FIL/SEL]
(M) or
[FIL/SEL]
(S)
to select the receive filter.
Each press cycles the RX filter through A > B > C.
3
Press
[AF]
(F5) to enable to edit the AF Filter.
4
Subsequently, press
[AF]
(F5) to select the filter shape.
•
Each time you press
[AF]
(F5), the selection cycles as
follows: Medium > Wide > Narrow >Medium Rotating the
MULTI/CH
control can also change the filter shape.
•
The default is "Medium".
5
Press
[ESC]
to exit.
Pressing
[FIL/SEL]
(M) or
[FIL/SEL]
(S) closes the
RX Filter
screen as well.