Installation Of Accessories; Optional Filter Installation - Kenwood TS-940S Instruction Manual

9-2. INSTALLATION OF ACCESSORIES
1 . Preparation
( 1 ) Prepare the following tools.
0 No. 2 Philips screwdriver
0 Diagonal cutters
(2) Unplug the power cord from the AC outlet before
starting work.
(3) Remove the 8 top and 8 bottom case screws and
remove the covers.
9-3. OPTIONAL FILTER INSTALLATION
(1) Install the filters at the appropriate locations on the
signal unit. Tighten the supplied mounting screws. If
any of the capacitors that are mounted on the signal
unit interfere with filter installation, they may be
"gently" bent out of the way.
COMBINATION OF IF FILTERS
MODE
NAR-WIDE
883 MHz IF
455kHz IF
Overall pass-
switch switch bandwidth
SSB WIDE or
2.4 kHz 2.4 kHz
2.4 kHz
*4 NARROW
(Stock) (Stock)
WIDE
2.4 kHz 2.4 kHz 2.4 kHz
CW/FSK
(YK-88C-1 (YG-455C-1
500Hz
*2
NARROW
500Hz)
500Hz)
*1
2.4 kHz
(YG455CN-1
250Hz
250Hz
-
6kHz 6kHz
WIDE
(YK-88A-1
6kHz 6kHz
6kHz)
AM
2.4 kHz
2.4 kHz 2.4 kHz
NARROW
(YK-88A-1
2.4 kHz 2.4 kHz
6kHz)
• YK-88A-1
Remove jumper wire W21 from the YK-88A-1 posi-
tion with a diagonal cutter.
Install the YK-88A-1 and tighten the supplied mount-
ing screws.
• YK-88C-1
Remove jumper wire W22 from the YK-88C-1 posi-
tion with a diagonal cutter.
Install the YK-88C-1 and tighten the supplied mount-
ing screws.
• YG-455C-1 or YG-455CN-1
Remove jumper wire W31 from the YG-455C(N)-1
pos1t1on with a diagonal cutter. Install the
YG-455(N)-1 and tighten the supplied mounting
screws.
SSBSLOPE
CWVBT
AFTUNE
NOTCH Note
TUNE
*2
HI-CUT to
1500Hz
Yes
LOW-CUT to
- -
700Hz
-
600Hz-
Yes Yes
2.4 kHz
Filter
-
150Hz-
Yes
Yes
combination
500Hz
recommended
forCWVBT
-
*3 Yes Yes
For
narrower
-
-
Yes
-
4-6kHz
-
600Hz
-
2.4 kHz*
-
Yes
-
*3
Table 9-1
Note:---------------------------------------
1 )
=Optional filter installed.
*1 Shows recommended optional filter combination for
cw.
*2 AF TUNE in FSK mode does not work.
*3 Although VBT circuit operates, not recommended.
*4 No optional SSB filters.
42
•
YK-88C-1
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