Kenwood TS-950SDX User manual

GOO/ANAD
HF TRANSCEIVER
TS-950SDX
INSTRUCTION MANUAL
KENWOOD CORPORATION
PRINTED IN JAPAN B62-0229-20(K, M, E, E
8 2
2, P, X)(MC)
93⁄2 1110987654321 921211109876

Thank you for purchasing this new transceiver.
[IMPORTANT
Please read this Instruction Manual
before placing the transceiver in service.
carefully
SAVE THIS INSTRUCTION MANUAL.
The following explicit definitions apply in this
manual:
Note : If disregarded, inconvenience only, no
risk of equipment damage or personal
injury.
Caution : Equipment damage may occur, but not
personal injury.
i This Instruction Manual covers the following
! models:
TS-950SDX: HF TRANSCEIVER with the , SO-2, YK-
880-1, YG-455C-1, and YG-455S-1,
are included in this transceiver as
standard equipment.
FCC WARNING
This equipment may generate or use radio
frequency energy. Changes or modifications to
this equipment may cause harmful interference
unless the modifications are expressly approved
in the instruction manual. The user could lose the
authority to operate this equipment if an
unauthorized change or modification is made.
i Note
This equipment has been tested and found to
comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection
against harmful interference in a_ residential
installation. This equipment may cause harmful
interference to radio communications, if it is not
installed and used in accordance with the
instructions. However, there is no guarantee that
interference will not occur in a particular
installation. if this equipment does cause harmful
interference to radio or television reception,
which can be determined by turning the
equipment off and on, the user is encouraged to
try to correct the interference by one or more of
the following measures:
=- Reorient or relocate the receiving antenna.
= Increase the separation between the
equipment and receiver.
ie Connect the equipment into an outlet on a
circuit different from that to which the
receiver is connected.
~~ Consult the dealer or an experienced
tadio/TV technician for help.
CONTENTS
3
5
5
6
7
7
Fa
10
4. 10
4-2. 21
4-3. 3
4-4.
38
4-5. 42
4-6. CW message function ............... 44
4-7. Voice Recording using
the DRS function .......-........... 45
4-8. REPEATER OPERATION.............- 47
4-9. OPERATION WITH A PERSONAL
COMPUTER venais siuii etree ¥ 47
4-10. VOICE SYNTHESIZER . nao 48
4-11. DIGITAL MODULATION FUNCTION ... 48
4-12. Transfer function when two TS-950SDX
transceivers are connected together .. 49
4-13. When used as the master machine for the
TANSVEHCE: keie leach aupin inan 5
5. MAINTENANCE AND ADJUSTMENTS ..... 52
5-1. GENERAL INFORMATION ............ 52
622 SERVICE «seve e titra rae TAEKE E 52
pok CLEANING: reest aseak Aaa 52
5-4. IN CASE OF DIFFICULTY ............. 53
5-5. ORDERING SPARE PARTS........ 54
5-6. ADJUSTMENTS araea onkr 54
6. OPTIONAL ACCESSORIES ............... 58
6-1. DRU-2 DIGITAL RECORDING UNIT
INSTALLATION -e oee ian oan aE EA 58
6-2. OPTION FILTER INSTALLATION....... 58
6-3. VS-2 VOICE SYNTHESIZER
INSTALLATION ......0.... 0.000000 0 59
6-4. OTHER ACCESSORIES.. .. 60
7, REFERENCE verad a ake ang eah pe a ead 62
| WARNING i
To prevent fire or shock hazard, do not expose ;
[this appliance to rain or moisture.

Safty precautions
WARNING: TO PREVENT FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE
TO RAIN OR MOISTURE.
|
i CAUTION i CAUTION: TO REDUCE THE RiSK OF ELECTSIC SHC a
CEE (OR BACK). NO USER-SERV-CZABLE PARTS NSIDE REFER SE
DO NOT OPEN FIED SERVICE PERSONNEL.
| THE LIGHTNING FLASH WITH ARROWHEAD SYMBOL, WITHIN AN EQUILATERA
| INTENDED TO ALERT THE LSER TO THE PRESENCE OF UNINSJLATED
|
WITHIN THE PSODUCT'S ENCLOSURE THAT MAY BE OF SUFFICIENT M
TUTE A RISK OF ELECTRIC SHOCK TG PERSONS
ED TO ALERT THE USEP
NCiINSTRLCTIONS
| THE EXCLAMATION POINT WITHIN AN EQUILATERAL T3IANGLE IS NTER
TO THE PRESENCE OF IMPORTANT OPERATING AND MA NTENANSE ISERVICI
IN THE LITERATURE ACCOMPANYING THE APPLIANCE
IMPORTANT
SAFEGUARDS
Caution
:
Read
this
Rage
carefully
to
ensure
Please read all of the safety and operating instructions 4. Electric shock — Care sheula be taken so that ob-
before
operating
this
unit.
For
best
results,
follow
all
jects
do
not
fali
anc
liquid
is
not
spillea
into
the
en-
warnings
placed
on
the
unit
and
adhere
to
the
operat-
closure
through
openings.
If
a
metal
object,
such
as
ing
and
use
instructions.
These
safety
and
operating
in-
a
hair
pin
or
2
needie,
comes
into
contact
with
the
structions
should
be
retained
for
future
reference.
inside
of
this
unit,
a
dangerous
electric
snack
may
result. For families witn chiidren, never permit chil-
1.
Power
sources
—
The
unit
should
be
connected
dren
to
put
anytning,
esoecially
metal,
‘nsice
ths
to a power supply only of the type described in the unit
Operating instructions or as marked on the appliance.
2.Power-cord protection — Power-supply cords
should be routed so that they are not likely to be
walked on or pinched by items placed upon or
against them, pay particular attention to cords at
plugs, convenience receptacles, and the point where
they exit from the unit
5. Grounding or polarization — The orecautiors
Naver puil or stretch A
the
cord.
should
be
taken
so
that
the
grounding
or
polariza-
tion means of this unit is not defeatec
6. Ventilation — The un't should be situated so that
ts location or position does noi interfere with its
proper ventilation
3.
Abnormal
smell
—
If
an
abnormal
smell
or
smoke
To
maintain
good
ventiation,
do
not
put
records
or
is
detected,
immediately
turn
the
power
OFF
and
pull
a
table-cloth
on
the
unit.
Place
the
unit
at
least
out
the
power
cord.
Contact
your
dealer
or
nearest
serv-
4
inches
(10
cm}
away
from
the
walls
ice
center.
Do
not
use
the
unit
on
a
bed,
sofa,
rug
or
similar
POWER
OFF!
surface
that
may
block
the
ventilation
openings

Å Caution : Read this page carefully to ensure safe
7. Enclosure removal — Never remove the en-
closure. If the internal parts are toucned ac-
cidentally, a serious electric sheck might occur.
8. Water and moisture - The unit should not be
used near water for example, near a bathtub,
washoowl, kitchen sink, laundry tub, in a wet base-
ment, or near a swimming pool, ete.
9. Outdoor antenna grounding — If an outside an-
tenna is connected to the receiver, be sure the an-
tenna systern is grounded so as to pravide some
protection against voltage surges and built up static
charges. Section 810 of the National Electrical
Code, ANSI/NFPA 70, orovides information with
respect to proper grounding of ihe mast and sup-
porting structure, grounding of the lead-in wire ta
an antenna discharge unit, size of grounding con-
ductors, location of antenna-discharge unit, con-
nection to grounding electrodes, and requirements
for the grounding siectrode. See the accompany-
ing illustration.
EXAMPLE DF ANTENNA GROUNDING AS PER
NATIONAL ELECTRICAL CODE
—— ANTENNA
LEAD IN
WIRE
GROUND
ANTENNA
DISCHARGE UNIT
(NEC SECTION 810-20)
ELECTRIC
SERVICE
EQUIPMENT -———__
GROUNDING CONDUCTORS
INEC SECTION 819-21)
GROUND CLAMPS
aa POWER SERVICE GROUNDING
ELECTRODE SYSTEM
NEG — NATIONAL ELECTRICAL CODE IMEC: AAT 250, PART Hi
10. Power lines — An outdoor antenna should be lo-
cated away ‘rom power lines
operation.
11. Heat — The unit should be situated away from
heat sources such as radiators, heat registers,
stoves, or other units lincluding amolifiers) that
produce heat.
12. Cleaning — Do not use volatile solvents such as
alconol, paint thinner, gasoline, or benzine, etc. i0
clean the caginet. Use a clean dry cloth
13. Nonuse periods — The power cord of the unit
should be unplugged from the outlet when left un-
used for a iong pericd of time
14. Servicing — The user should not attempt to ser-
vice the unit beyond that described in the operating
instructions. All other servicing should be referred
to gualified service personnel.
15. Damage requiring service — The unit snould be
serviced by qualified service personnel when:
A. The power-supply cord or the plug has been
damaged; or
B. Objects nave fallen, or liquid has been spilled inte
the unit; or
C. The unit nas been exposed to rain, or
D. The unit dees not appear to operate normally or
exhibits a marked change in performance: or
E. The unit has been dropped, or the enclosure
damaged.

SPECIFICATIONS AND ACCESSORIES
2-1. SPECIFICATIONS
General a
Mode
Memory Channels
Antenna impedance
Power requirement
Power dissipation
Receive mode with no input signal
Transmit mode
Operating temperature
Frequency stability
Frequency accuracy
J3E (LSB, USB }
ATA(CW), ASE(AM)
F3E(FM)
FIA(FSK)
100 Channels.
50 ohms.
(With Antenna
Tuner 20™150
ohms.)
K and P type
(IZOVAC +10%)
M type
(120/230VAC £10%)
E type
(230VAC+10%)
T type
(220/240VAG + 10%)
X type
(120/240VAC + 10%)
TOW
700W (7.5A)
—10 to +50°C
(+14 to + 122°F)
Less than £0.5
PPM.
Less than £0,5
PPM.
Dimensions (WX H XD) 409 X154 x 446mm
(Projections included 16-3/22" x 6-1/16" X17-
: 9/16")
Weight 23kg (50.6lbs)
Frequency range
160m band
80m band
40m band
30m band
20m band
17m band
15m band
12m band
10m band
Output Power
a
i Transmitter-A = =————__
ee AEE ARERR EO a |
1.8 to 2.0 MHz
3.5 to 4.0 MHz
7.0 to 7.3MHz
10.1 to 10.15 MHz
14.0 to 14.35 MHz
18.068 to 18.168 MHz
21.0 to 21.45 MHz
24.89 to 24.99 MHz
28.0 to 29.7 MHz
(With auto antenna tuner in "THRU"),
1.9~24MHz SSB, CW, FSK, FM
28MHz
SSB, CW, FSK, FM
20W (MIN)
AM
10W (MIN)
20W (MIN)
40W (MAX)
10W (MIN)
AM
150W (MAX)
40W (MAX)
HOW (MAX)
Transmitter-B = =———____
SSB Balanced
modulation.
Modulation
FM Reactance
modulation.
AM Low level
modulation.
Spurious radiation Less than — 40dB
Carrier suppression(with 1.5kHz reference.)
More than 50dB
Unwanted sideband suppression
(with 1.5kHz reference) More than 60dB. i
Maximum frequency deviation (FM)
Less than +5kHz.
Frequency response (~ 6dB)
100 to 3100Hz.
+9.99kHz.
250 ohms to 600
ohms.
XIT variable range
Microphone impedance
en
j Receiver-A
Circuitry
Main SSB, CW, FSK, AM Quadruple
conversion
superheterodyne.
Triple conversion
superheterodyne.
Double conversion
superheterodyne.
100kHz to 30MHz.
FM
Sub SSB, CW, FSK
Frequency range
Intermediate frequency
Main ist :
2nd :
3rd
Ath
Sub lst :
2nd:
73.05MHz
8.83MHz
455kHz
100kHz
40.055MHz
10.695MHz
Sensitivity
SSB, CW (at 10dB S + N/N)
100kKHz~150kHz
150kHz~490kHz
490kHz~1.62MHz
1.62MHz~30MHz
AM(at 10¢B S + N/N)
100kHz~150kHz
150kHz~490kHz
490kHz~1.62MHz
1.62MHz~30MHz
FM(at 12dB SINAD)
28MHz~30MHz
Note
USA version only :
490kHz~1.62MHz — 490kHz~1.705MHz
, 1.62MHz~30MHz —1.705MHz~30MHz
Less than 2.5 nV
Less than 1 gV
Less than 4 yV
Less than 0.2 nV
Less than 25 xV !
Less than 10 xV
Less than 32 pV
Less than 2.0 nV
Less than 0.5 pV

2-2. ACCESSORIES
;
i ee ; æ
Receiver-B Unpack your TS-950SDX carefully and confirm
Selectivity that it is supplied with the following accessories.
SSB, AMIN), FSK —6dB : 2.4kHz Quick Key Board (RM-1)
SORR E X60-3240-00 lea
AM(W) —6dB : 6kHz ink Hs ae i
Dynamic microphone
0008 7 MSKHZ T91-0352-15 1ea
CWIW) —6dB : 400Hz F aa g
DIN plug (7-pin}
—60dB: 900Hz
Sree eae E07-0751-05 .... tea.
—60dB: IK DIN plug (13-pin)
: 5 E07-1351-05 .... tea.
Image ratio ........... More than 80dB. Fuse (GAMM type eee fea
| Ist IFrejection ........ More than 70dB. Control location sticker Aat '
| Notch filter attenuation .. More than 45dB. | B42-3371-04 lea
RIT variable range ..... +9.99kHz | : ange f
instruction Manual
sh B62-0229-XX .... 1 copy.
ear Le External control Instruction Manual
100kKH2~150kHz Less than 6.3 gV Crito dm Boer ess KX r TORY:
150kHz~490kHz Less than 2.5 „V 3 hestas iadh
490kHz~1.62MHz_ Less than 10g V iiag y:
1.62MHz~30MHz Less than 0.5 nV MENU KEY DISPLAY EIST
ee sou B59-0456-XX .... 1 copy.
FM 28MHz~30MHzz Less than 0.32 nV | Warranty card
Sheer ants (U.S.A., Canada and Europe version only) 1 ea.
i USA version only :
-490KHz2~1.62MHz — 490kKHz~1.705MHz :
|4.62MHz~30MHz —>1.705MHz~30MHz Attach the control location sticker on the upper
L zt
case where it can be easily seen .
Note
Output 1.5W across 8 ohms P
load. (10% distortion) | After unpacking
Output toad impedance 8 ohms. Shipping container: ,
Save the boxes and packing in the event your unit
Notes GAR ` needs to be transported for remote operation,
i A A intenan ice.
1. Circuit and ratings are subject to change without maintenance.gr sefyi
notice due to advancements in technology.
2. Remember to keep the transmitting output power
within the power limitations of your license.
--—--- -| For United Kingdom —,
The mains plug must be removed from the wall socket prior to any internal examination.
| WARNING : THIS APPARATUS MUST BE EARTHED.
Important : The wires in this mains lead are coloured in accordance with the following code:
Blue Neutral
Brown Live
Green-and-Yellow .. Earth
' The wires in this mains lead must be connected to the terminals in the plug as follows:
Green-and-Yellow or Green Blue to
Neutral
Wire colour Plug terminal marking Green-and-yellow i
Blue greri rs Letter N or coloured Black tora l
Brown ........... Letter L or coloured Red rane to |
|
Green-and-Yellow
..
Letter
E
or
ak
or
coloured
|
|
Plug

3. INSTALLATION AND CONNECTION
3-1. INSTALLATION
HEFRONT FEET
By extending the front feet, the front panel can be
elevated for operating convenience.
Turn the front feet left and pul! down.
Then turn right to lock.
3-2. CONNECTION
The TS-950SDxX is supplied to operate from a 120V AC,
220V AC or 240V AC 50/60 Hz power source capable of
supplying 700 watts or more. o io
i Note |
U.S.A. versions of this radio are equipped with a non- i
switchable 120VAC 60Hz power supply.
Front feet extension
A. Rear Panel
To antenna — 4
(option)
==
To
Linear
etc
er Sp PAE
K
T
7
i
~
Data
communications
device
== Grouna
Ss £
i| o= J QUICK KEY BOARD YF Key
BY,
=
g
Exciter, TS-950SDX TL-922A
e
AC line
Ground
bus
|
RF
output
CAUTION: —_
Qo not connact the power cable when the
TL-922A POWER switch is ON.
TL-922/922A LINEAR AMPLIFIER CONNECTION

To Antenna
SM-230 STATION MONITOR CONNECTION _
(1) Antenna
Caution
Protect your equipment --- Use a LIGHTNING
ARRESTER.
The type of antenna that is used will greatly affect
the performance of the transceiver. Use a properly
adjusted antenna, of good quality, to enable your
transceiver to perform at its best. The antenna input
impedance is 50 ohms. Use 50-ohm coaxial cable
such as RG-8 or 5D-2V for this connection. If the
antenna is far from the transceiver the use of low
loss coaxial cable, such as 10D-2V is recommended.
Match the impedance of the coaxial cable and that
of the antenna so that the SWR is less than 1.5 to 1.
The protection circuit in the transceiver will activate
if the SWR is particularly poor (greater than 3 to 1).
A high SWR value will cause transmitter output to
drop, and may lead to TVI or BCI reports.
(2) Grounding
Caution
Never use a gas pipe or electrical conduit pipe for
ground connection.
Notes
1. A ground connection that is a 1/4 wavelength or
its multiple may provide a good DC ground, but
it will not provide a good RF ground.
2. A city. water pipe cannot be used as a good į
earth in some cases. |
j
Making a good earth connection is important for
preventing dangers such as electric shock and for
emitting a high quality signal with minimum
spurious radiation. Bury a commercially available
ground rod or copper plate under the ground and
connect it to the GND terminal. A thick wire, cut as
short as possible, should be used for the connection.
To make a good earth connection, connect the GND
terminal to a grounded metal water pipe.
(3) External speaker
The TS-950SDX includes a built-in speaker. If you
would like to use an external speaker, such as the SP-
950, it may be connected to the EXT SP jack on the
rear of the radio. The speaker may be any good 8
ohm permanent magnet type speaker. The diameter
should be at least 4 inches for good audio quality. If
you plan on using a speaker other than the SP-950, it
should be equipped with a miniature phone jack
plug. (diameter 3.5 mm}
E External Speaker and Voice Outputs
Using an external speaker, you can switch the MAIN
and SUB voice outputs.
To switch the voice outputs, use the MENU key as
follows:
MENU operation
1. Press the MENU key.
2. Adjust the M.CH/VFO CH control to select menu
number 06. The SUB frequency display will then
show the current setting.
3. Use the UP/DWN switches to select the desired
function.
4, Press the MENU key again to complete this MENU
operation.
Settings and speaker outputs
T
Selection Internal speaker | External speaker :
OFF ' MAIN and SUB MAIN and SUB
1 SUB (and MAIN (and i
j “MAIN") ”“SUB") i
! 2 SUB MAIN
1. The parenthesses in the above table indicate the |
band whose output volume is smaller compared
with when you select OFF. To increase the
volume, turn the AF control for that band
clockwise.
‘2. If setting 1 or 2 is selected, the internal
| speaker does not beep for any key operation.
$
“Notes |
i
|
i

(4) Key connection
Your key should be connected as illustrated in the
figura below. When using an electronic keyer, make
sure that it is set for positive keying. Always use
shielded line from the key to transceiver. (plug
diameter is 6.0 mm)
WiTo use externa! straight key
+5V, Contact
Current about
a a a
i i
Ground Not used +
or +5V, Contact
Current about
A A
:
i
Ground
B. Front Panel
|See Section 4-3-6 for additional CW key/ keyer |
connection information and diagrams. |
Note
Check the polarity of the plug when you use an,
electronic keyer.
|
Headphone
Microphone
(1) Headphones
Any low-impedance (4-16 ohms) headphones may
be used with the transceiver. Connect the
headphones to the front panel PHONES jack.
(diameter 6.0 mm). The optional HS-5 or HS-6
headphones are best suited for use with the
transceiver. Stereo. type headphones can also be
used. When using Stereo headphone the main band
will be heard on one side and the sub-band on the
other side. If the sub-band is turned off no audio will
be heard on the sub-band side.
(2) Microphones
Any microphone with an impedance between 250 Q
to 600 Q may be used with this transceiver. The
KENWOOD microphones MC-43S (handheld), MC-
60A, MC-80, MC-85, MC-90 {table-top type) are
recommended.

4. OPERATION
4-1. OPERATING CONTROLS
4-1-1. Front Panel
Note
Ail segments on the Display Panel and Indicators
are shown for this explanation.
NA LEYE.
usin = sue
AGC Qe «EY SPEED
lo
EE T =
|
a
2 © 8 ®
@ POWER switch
Press to turn the power ON or OFF.
@ ATT (Attenuator) switch
When the incoming receive signal is very strong,
the signal should be attenuated to prevent
distortion of the signal, thereby stabilizing the
receiver performance. This is easily done by
activating the ATT switch. This control is also useful
when a strong signal is near your desired signal;
while some loss will occur to the desired signal, as
well as the undesired signal, the use of the
attenuator will sometimes allow you to understand
what is being received. This switch allows
attenuation of the input signal by 6, 12 or 18 dB.
For normal receiver performance, this switch
should be in the 0 dB position.
10
@ VOX/MAN switch
VOX (Voice Operated Switch} operation is possible
in SSB, AM or FM operations. Break-in operation is
possible in CW operation. To activate the VOX
circuitry place the VOX switch ON (mm).
@ FULL/SEMI (Break-in) switch
This switch affects the transmit/ receive recovery
time. In the SEMI position the transceiver will key
when the key is depressed and remain in the
transmit position until a preset delay has been
reached. In the FULL position the transceiver will
switch back to receive as soon as the key is released,
thus allowing you to copy incoming signals
between characters.
© MONI (Monitor) switch
Allows monitoring of your transmit signal.
© DIM (Dimmer) switch
Selects the intensity of both the digital display and
the meter illumination, bright or dim.

D a
4o)
el
g ass | F Lock oara eeg
dees Fee a
aoe Tie (ar we
feta) Gi ii, a, O:
Ce o iye ago
A w eii
DORITI
@ Meter
During receiving of signals the meter is used as an
S-meter. During transmission the meter is used as a
POWER meter, and is controlled by the METER
switch, and provides either VSWR, COMP level, ALC
level, or Ic meter readings.
Notes
1. Simultaneous reading of SWR and COMP level
is not possible.
2. Simultaneous reading of ALC level and Ic is not
possible.
3. Simultaneous reading of more than three data |
items is not possible. i
4. The bottom scale functions as an S-meter for
the Sub-band during Sub-band receive j
operations.
© Filter indicators
Indicate which filters have been selected. Works for
Main or Sub-band depending on the setting of the
M/S switch @ .
@ F.LOCK display
Lights when the F.LOCK key is ON.
DATA display
Lights when the DATA MODE is ON.
PRG (Program) display
Lights during selection or operation on
memory channels 90 to 99.
SCAN display
Turns ON during scanning.
M.SCR (Memory scroll) display
Lights when the M.IN key is pressed. When the
memory scroll function is active, you can
review the contents of the memory channels
without a loss of the incoming receive
frequency.
RIT display
Turns ON when using RIT.
XIT display
Turns ON when using XIT.
* display
Turns ON when using FINE.
M.CH (Memory channel) display
Turns ON during a Memory Channel
operation.
49 <A> display
Lights when VFO A is selected and shows that
the VFO is operating.
<B> display
Lights when VFO B is selected and shows that
the VFO is operating.
<M> display
Lights when a memory channel is selected and
shows that the Memory function is operating.
a) SPLIT display
Turns ON during split operation.
TF-W (TX Frequency Watch) display
Turns ON during TF-W operation.
& ON AIR indicator
Lights during transmission.
B Analog Scale
Shows the frequency selected. Full scale can be
switched to either 1 MHz or 100 kHz depending on
the function setting when the power switch is
turned on. (See section 4-2-13.)
@ AT TUNE (Antenna Tuner) indicator
Lights to show that the automatic antenna tuner is
in operation. When it is lit, do not attempt to
operate further until it goes off.
® Frequency display
Indicates the operating frequency.
dé AIP(Advanced Intercept Point) indicator
Lights when the AIP switch is ON.
®© SUB indicator
Lights when the SUB receiver is turned on by the
SUB key, then the M/S key is pressed.
11

@® RIT/XIT frequency display
Shows the amount of RIT/XIT offset to the nearest
10 Hz. Minus "-" appears in the display when the
RIT / XIT offset is below the transmit / receive
frequency.
jiġ Memory Channel number display
Memory Channel Number is displayed.
4 Memory Channel Lockout Indicator
The @ display indicates the Memory Channel
currently in the display will be skipped during
Memory Channel scan.
45 SUB display
Lights when the SUB key is ON.
TONE display
Lights when the TONE is ON.
@ SUB Frequency display
Indicates the sub operating frequency or tone
frequency.
HTX frequency display
Indicates the TX operating frequency or memory
channel frequency.
i NOTCH control
The NOTCH function is used to reduce or eliminate
heterodyne, or CW type signals. The NOTCH filter
will not be effective against SSB, AM, or FM type
signals. :
i SQL (Squelch) control
This control is used to eliminate atmospheric noise,
and receiver static noise during no signal periods.
Slowly rotate the contro! clockwise to the point
where the ambient noise just disappears, and the
speaker shuts off. This point is known as the
squelch threshold point. Now you will only hear
output from the speaker when an incoming signal
is present. For weak signal reception this control
should be fully counterclockwise.
2% SUB AF gain control
Turn the knob to increase or decrease the SUB
receiver volume. Clockwise rotation increases the
volume and counterclockwise rotation decreases
the volume.
© PITCH control
The CW PITCH control is provided so that you may
adjust the frequency of the incoming CW signal so
that the tone is pleasing to you. The TS-950SDX
accomplishes this without shifting the actual
transmit or receive frequency, by shifting the
100kHz IF frequency, just prior to product
detection.
12
@ RIT switch
Press to turn the RIT ON or OFF.
A XIT switch
Press to turn the XIT ON or OFF.
© CLEAR switch
Pressing the CLEAR switch restores the RIT/XIT to
zero,
© NOTCH switch
When this switch is ON, the notch filter is activated.
@ AF VBT switch
The AF VBT circuit is just the opposite of the NOTCH
circuit. With this control it is possible to accentuate
the desired signal by providing additional rejection
of noise and interfering signals whose pitch (tone)
falls outside the audio passband.

PECASEND =
TUe
3 REC/SEND switch
This switch is used when you want to manually
control transmission or receiving.
REC : Places the radio into the receive mode.
SEND : Places the radio into the transmit mode.
ŝi: THRU/AUTO switch
THRU: The auto antenna tuner is not used in the
transmit mode.
AUTO: The auto antenna tuner is used in the
transmit mode.
FF/AT TUNE switch
When this switch is turned ON with the
THRU/AUTO, switch placed in the AUTO position,
the automatic tuner will be engaged and the tuner
will try to match the antenna.
36 PHONES jack
Output terminal for headphones.
MIC jack
Microphone connection.
GND (STBY) #
MIC
ï
7.
GND
(MIC)
STBY
2
&
NC
DOWN
3.
&
8
Viapprox.
10
mA
ue
E
MIC connector (Front view)
@® KEY SPEED control
This controls the speed of the electronic keyer. Turn
the knob clockwise to increase speed.
® AGC switch
This switch selects the operating time constant of
the AGC (Automatic Gain Control) circuit. When
the AGC switch is set to AUTO the gain is
automatically controlled for the selected mode.
When the AGC switch is set to SLOW, the receiver gain
and S-meter readings will react slowly to large input
changes, and when set to FAST, the receiver gain and
S-meter will react quickly to changes in the input signal
tevel.
The normal position when using all modes is the
SLOW position. When working any of the
following, you might wish to use the FAST position.
® When tuning rapidly, use the FAST position.
@ When receiving weak signals.
@ When a high-speed CW signal is being received.
| Note
This switch is disabled during FM operations.
40; MAIN NB LEVEL control
Controls the noise blanker operating level.
Use only the minimum level necessary.
© SUB NB LEVEL control
Controls the noise blanker operating level.
Use only the minimum level necessary.
& NB 1 switch
For pulse type noise, such as generated by
automotive ignition systems, turn the NB 1 switch
ON.
This switch will not heip to eliminate atmospheric
or line noises, only pulse type noise.
&: NB 2 switch
Noise blanker 2 is used for long duration pulse
noise, like the "woodpecker. To reduce
"woodpecker" radar noise interference, set switch
NB 2 to the ON position (NB 2’s effectiveness
depends on the specific type of interference). If you
use NB 2 for short duration pulse noise, the receive
tone may become distorted, making it difficult to
hear.
Unfortunately no noise blanker can remove all
different types of interference, but the two noise
blankers that have been provided in the TS-950SDX
are effective in most cases.
If there is no woodpecker” present, the switch should
be in the OFF position.
13

@ AIP (Advanced Intercept Point) switch
Use AIP when good signal reception in a crowded
band cannot be obtained. When switched on, it
reduces interference from strong signals.
i Note i
When AIP is on, the sensitivity of the receiver is
reduced about 10 dB.
@ PROCESSOR-OUT control
Set the METER switch to ALC and adjust the
PROCESSOR-OUT contro! while speaking into the
microphone. Ensure that the meter deflection is
within the ALC zone!
& PROCESSOR-IN control
Adjust the PROCESSOR-IN control while speaking
into the microphone in a normal tone of voice, for
a peak COMP scale reading of no more than 10 dB.
Do not overdrive the compressor.
Over driving the compressor will deteriorate voice
quality, increase transmitter noise level, and in
general make copying your signal more difficult.
a PROC (Processor) switch
Effective transmit power output will increase when
the PROC switch is turned ON during SSB mode
operations.
@ MIC gain control
Microphone gain can be adjusted during SSB and
AM operations. Gain is increased by turning the
contral clockwise.
@ PWR (Power) control
Power can be controlled in all modes. Power is
increased by turning the control clockwise.
Keep the transmit power within the output power
limit of your license.
G
& METER switch
These switches are used to switch meter indications
during transmission.
SWR/COMP: Indicates the SWR value or
compression level. When this switch is
released the SWR value is indicated.
When this switch is pressed the
compression level is indicated.
: Indicates the ALC operating state or
the drain current(Ild) of the final FET.
When this switch is released the ALC
operating state is indicated.
ALC/Ic
14
When this switch is pressed , the drain
current (Id) of the final FET is
indicated. Since the Ic meter is
calibrated at the values normally
encountered, its indication may not be
accurate at very low currents such as
the idling current.
© FILTER switch
8.83 : Selects the desired
regardless of mode.
455 : Selects the desired 455kHz filter regardless
of mode.
8.83MHz filter

& MODE keys
These keys are used to select the desired operating
mode. When a MODE key is pressed, the first
character of the selected mode will be sounded in
Morse code through the internal speaker.
DATA mode: In the SSB/AM/FM mode, pressing
the same key twice (once if the key
was pressed previously) will select
the DATA mode. The DATA
indicator lights. Pressing the same
key once again will cancel the DATA
mode. When the FSK mode is
selected, it is automatically
switched to the DATA mode.
The DATA mode is used for packet communications
and RTTY. When this mode is selected, signals from
he microphones are blocked and modulation is
provided by the incoming DATA from the ACC2
connecter on the rear panel during trasmission.
n the FM mode, the time constant for squelch
becomes fast.
‘Notes
1. When the DATA mode is selected, no
modulation will be provided from the,
microphone.
2. The DATA mode is canceled when another
mode is selected.
& TUNING knob (VFO)
Rotate the knob to select the desired frequency.
Fast tuning is possible by rotating the knob rapidly.
The dial drag is adjustable by holding the outside
knob and turning the inside knob clockwise to
increase drag, and counterclockwise to decrease
drag.
6) FUNCTION keys
TF-SET key
Holding down this key will allow you to quickly
set or check the transmit frequency, during
SPLIT operations, without the need of actually
transmitting.
MENU key
This key is used to select or cancel the menu
function. Select a menu number with the
M.CH/VFO CH control and change the menu
contents with the UP/DOWN switches.
A (VFO A) key
RX: Press this key to receive signals on VFO A.
TX: Press this key to transmit signals on VFO A.
B (VFO B) key
RX: Press this key to receive signals on VFO B.
TX : Press this key to transmit signals on VFO B.
M.CH (Memory) key
RX: Press this key to receive signals on the
memory channel.
TX: Press this key to transmit signals on the
memory channel.
A=B key
Equalizes the frequencies and modes of VFO A
and VFO B.
RX—SUB key
Press this key to transfer the receive frequency
to SUB.
| Note
i The receive frequency cannot be transferred
| when SUB is off.
£ FINE switch
One turn of the tuning knob is made equivalent to
1kHz (tHz step) in the SSB, CW, and FSK modes to
facilitate tuning. When this switch is set to ON, the
asterisk (*) lights on the display.
$ FLOCK key
The selected dial frequency and mode are locked.
Note
When the F.LOCK key is on, the MENU TF-SET .
: keys, and RIT, XIT, CLEAR, METER, FILTER, AIP, :
VOICE switches, and RIT / XIT control are still,
active.
VOICE switch
Press this switch to activate the optional voice
synthesizer unit VS-2.
36 CAR LEVEL (Carrier level) control
Used to adjust carrier level during CW and AM.
$3; MONI (Monitor) control
This contrals the volume of the transmit monitor.
@ DELAY control
This control adjusts how long the radio will remain
keyed after voice input has stopped.
%4 ANTI control
VOX operations are sometimes difficult with high
speaker volume control settings. The ANTI contro!
is used to reduce the tendency of the VOX to
activate from inputs from the speaker. The ANTI
control is not active when headphones are
connected.
T: GAIN control
This control adjusts the sensitivity of the VOX
amplifier. Adjust this control for your personal
preference.
$ QUICK MEMO M.IN key
This key writes data to the quick memory.
$ QUICK MEMO MR key
This key recalls the quick memory.
15

® 1MHz UP/DOWN switch
Pressing
the
UP
switch
increases
the
frequency,
and
pressing the DOWN switch decreases it.
® © &
[C7508 j
=E
SUB M/S
&
& TF-W (TX Frequency Watch) key
Use
this
key
to
activate/deactivate
the
TF-Watch
function.
& SUB Receiver key
Use this key to tum the Sub Receiver ON or OFF.
@& MIN key
Used
to
enter
data
into
a
memory
channel.
@ M—VFO key
Used
to
transfer
a
frequency
from
memory
to
the
VFO.
@ SCAN key
Use
to
initiate
program
scan
during
VFO
operation
and
use
to
initiate
memory
scan
during
memory
operation.
[Note
The Sub-receiver is operational in the SSB, CW
_and FSK modes only.
® M/S key
Use this key to specify which band (Main or Sub) is
controlled by the tuning controls, and filter, mode,
band keys, etc. When the Sub receiver is selected
the Sub indicator will light.
@ BAND/KEY key
Used to select an amateur radio frequency band.
When used in conjunction with the ENT key, the
keypad is used to directly enter a frequency.
When used in conjunction with the M.IN key,The
keypad is used to enter data into a memory
channel. When the M/S key is used to control the
Sub-receive this key is used to control the Sub-
receiver band.
&© CLR (Clear) key
Used when reentering memory channel data,
erasing a memory channel, quiting scan, or when
specifying the channels that will be skipped during
scan operations.
& ENT (Enter) key
Used to directly enter a frequency from the numeric key-
pad. This is also used to select either the Main or sub-
receiver depending upon M/S key selection.
16
79
TX VFO/SUB control
When
the
Sub
receiver
is
OFF,
the
transmit
frequency
indicated
in
the
TX
frequency
display
can
be changed with this control.
Í Note f
This
control
does
not
function
during
simplex
`
operations.
When the Sub receiver is ON, the Sub receiver
frequency displayed can be changed with this
control, or the main tuning control if the M/S key
has been used to select the Sub-band.
® RIT/XIT control
RIT (Receiver Incremental Tuning)
First, cancel any previously programmed offset
using the CLEAR switch, then turn the RIT
switch ON. The RIT control shifts the receiver
frequency up to + 9.99 kHz. Use of the RIT
control will not affect the transmit frequency.
When the RIT switch is ON, the RIT indicator will
light, and the receive frequency can be
adjusted using the RIT control. Pressing the
CLEAR switch restores the RIT to zero. ,
Note :
When
the
RIT
is
ON
the
transmit
frequency
|
may
be
different
from
the
receive
frequency.
;
|For
normal
operation,
leave
the
RIT
switch
OFF.
it
should
be
used
only
when
necessary.
|

XIT (Transmitter Incremental Tuning)
XIT is very similar to RIT. XIT is only active in
the transmit mode. By using the XIT function it is
possible to offset the transmit frequency without
the normal toss of receiver audio that is
experienced when using the SPLIT function.
Offsets of +9.99 kHz are possible.
The RIT/ XIT offset can be preset, without
affecting the actual operating frequency by
turning OFF the RIT/XIT and using the RIT/ XIT
display to determine the offset.
This is useful to communicate with a DX station
using “split” within the XIT range.
7 AF gain control
Turn the knob to increase or decrease the volume.
Clockwise rotation increases the volume and
counterclockwise rotation decreases the volume.
Note
The output level of the "Beep" and "Sidetone” are
not affected by the setting of the AF gain control. |
38 RF gain control
This control adjusts the gain of the receiver high-
frequency amplifier section.
For normal receiver performance and maximum gain,
this control should be turned clockwise to the limit. If
you are having trouble copying the desired signal
make a note of the stations peak S-meter reading.
Then adjust the RF gain control left so that the
meter needle is stationary at this level. Now all
signals that were less than the desired signal will be
attenuated, such as static noise, etc., making
reception easier.
If the incoming signal! pegs the S-meter you can also
reduce the receiver gain by moving the RF gain
control to the left. The S-meter lamps will light
sequentially as the RF gain control is turned, to
indicate that the gain has been reduced.
Simultaneous use of the RF gain control and
AGC switch
If a strong signal (such as a local station) appears in
the vicinity of the intended receive signal, the S-
meter may show unusual deflection due to the AGC
voltage developed from the strong disturbing signal.
If this occurs, move the RF gain control to the left so
the meter pointer remains at about the original
deflection peak and turn the AGC switch to the
FAST position. This will reduce the unwanted AGC
voltage and permit clear reception.
3 M.CH/VFO CH control
This control is used to change the frequency in 10
kHz steps during VFO operations.
This control is also used to select the desired
memory channei during Memory Channel Operation.
4ù IF VBT control
This control is very similar to the SSB Slope Tuning
controls. However, with the IF VBT control one
side of the IF passband can be narrowed. The actual
range depends upon the CW filters that have been
installed.
& AF VBT control
Turn the knob to ease interference when in the CW
receive mode.
@ SSB SLOPE TUNE HIGH CUT control
Adjust the HIGH CUT control counterclockwise, and
interference from signals higher than the operating
frequency will be reduced. The high-frequency
components of the resulting receiver audio will also
be reduced.
$} SSB SLOPE TUNE LOW CUT control
Adjust the LOW CUT control clockwise, and
interference from signals lower than the operating
frequency will be reduced. Like the HIGH CUT
control, use of the LOW CUT control will also affect
the audio frequency passband. In this case the low
frequency components of the audio signal will be
reduced.
E Microphone
@MQuUP/DWN(Up/Down) switches
These switches are used to step the VFO frequency
or memory channel up and down. The frequency will
change continuously if the switches are pressed and
held.
@ PTT (Push To Talk) switch
The transceiver will be placed into the transmit mode
whenever this switch is pressed.
17

4-1-2
Quick
Key
Board
RM-1
(Accessory)
Some
of
the
keys
on
the
front
panel
can
be
controlled
from
the
Quick
Key
Board
connected
to
the
Key
Board
jack
on
the
rear
panel.
Functions
that
may
be
controlled
include;
REC-1,
REC-2,
REC-3,
PLAY-1,
PLAY-2,
PLAY-3,
CLR,
TF-
SET,
QUICK
MEMO
(M.IN,
MR),
and
VOICE
(optional
voice
synthesizer
VS-2
is
required).
KENWOOD am:
REMOTE FUNCTION KEYBOARD.
D CLR/TF-SET switch
When this switch is set to the CLR position, the CLR
function is selected. When it is set to the TF-SET
position, the TF-SET function is selected.
@ REC/PLAY switch
When this switch is set to the REC position, the REC-
1,REC-2, REC-3 functions are selected. When it is set
to the PLAY position, the PLAY-1, PLAY-2, and PLAY-
3 functions are selected.
@PLAY-1/REC-1, PLAY-2/REC-2, PLAY-3/REC-3 keys
These keys are used to record CW or SSB messages.
Use the REC/PLAY switch to select the REC or PLAY
mode.
@ CLR/TF-SET key
The CLR function indicated on the key top or the TF-
SET function indicated under the key top is selected
depending on the position of the CLR/TF-SET switch.
Pressing the CLR key in the REC or PLAY mode will
stop recording or playback.
18
Keys inside cover
|
© VOICE key
The
function
of
this
key
is
the
same
as
that
of
the
VOICE
switch
on
the
transceiver.
The
displayed
frequency
can
be
announced
by
connecting
the
voice
synthesizer
(VS-2).
© TF-SET key
The
function
of
this
key
is
the
same
as
that
of
the
TF-
SET
key
on
the
transceiver.
When
the
CLR/TF-SET
switch
is
set
to
the
CLR
position,
the
TF-SET
function
is
ineffective.
When
it
is
set
to
the
TF-SET
position,
the
CLR
function
is
ineffective.
@ QUICK MEMO key
The
function
of
this
key
is
the
same
as
that
of
the
QUICK MEMO key on the transceiver.
M.IN key
The
current
operating
status
can
be
stored
in
one
of
the
five
memory
channels
one
after
another.
MR key
This
key
is
used
to
recall
the
stored
data
from
the
memory.Use
the
M.CH/VFO
CH
control
to
recall
a
memory channel.
Note
|
|
See
the
explanation
of
the
CW
message
function
in|
4-6
and
DRS
(Digital
Recording
System)
functions
in
4-7.
!

4-1-3. Rear Panel
er eons
@ GND (Ground) terminal
To prevent electric shock, as well as RFI and BCI,
connect the transceiver to a good earth ground.
@ANT (Antenna) connector
This connector should be attached to a suitable
antenna for transmitting and receiving. The
antenna cable should be a 50-ohm coaxial cable,
terminated with a PL-259 connector.
@RX ANT OUT terminal
This is the antenna terminal for reception. Signals
received at the ANT connector are sent to this
terminal. This terminal is normally linked to the RX
ANT IN terminal 4 with a jumper. If you wish to use
an external receiver, it would be connected to this
point.
@ DRIVE IN terminal
This is the final stage input terminal. It is normally
linked to the DRIVE OUT terminal @ with a jumper.
AC power cable
Connect this cable to an electric outlet.
© REFERENCE OSCILLATOR switch
Switch to OSCILLATOR using tweezers to receive an
external frequency standard signal.
@ EXT iNPUT terminal
This is the input terminal for an external standard
signai.
FSK KEY terminal
For connection to an RTTY interface unit. (direct
FSK keying).
© SCOPE connector
Use
this
connector
to
plug
in
the
Station
Monitor
SM-230 (option).
A RX ANT IN terminal
This is the antenna input terminal during receiving.
It is normally linked to the AX ANT OUT terminal @
with a jumper. An antenna for receiving only can
be connected to this terminal.
@ DRIVE OUT terminal
This is the drive output terminal for transmitting
signals. It is normally connected to the DRIVE IN
terminal @ with a jumper. The TX Drive level at this
point is 700 mV RF at 50 Q Impedance.
® ACC 1 jack
The optional IF-232C is connected here.
«3 DSP-A connector
The DSP unit is connected here.
@ CW KEY jack
Using shielded line, connect a 6.0 mm diameter
Phone plug to this jack for CW operation. Connect
a paddle type key to the key jack. Use a 6.0 mm
diameter stereo plug. Open-terminal voltage is
approximately
5
VDC.
(See
Section
4-3-6
for
additional key information.)
®© DSP-B connector
The DSP unit is connected here.
19

@ QUICK KEY BOARD jack
This jack is used to connect the RM-1.
@ LINEAR AMP switch
Activates the relay for the linear amplifier control.
@ EXT SP (External speaker) jack
This jack is for connection of an external speaker.
@ ACC 2 connector
Terminal numbers and their applications are as
follows:
View from the
rear panel.
j
| ees)
13-pin DIN piug (£07-1351 05)
ACC2 pin assignments
f ae z
‘Pin number Symbol Use
Sub receiver audio at a fixed
level independent of Sub AF:
1
SANO
gain
control
setting.
Output
voltage: 300 mV/4.7 KQ or
more at high input level
No connection
Main receiver audio at a
fixed level independent of
MANO AF gain control setting.
Output voltage: 300 mV/4.7 |
kQ or more at high input,
level
W
Grounding (The shielded
¿wire of the audio output
4 GND
; termina! is connected here.)
This pin ìs used for
connecting a TNC (Terminal
Node Controller) for use
with packet radio. It is the
Squetch Control terminal
and will not allow packet
communications while
squelch is off.
5 : PSQ
Output
voltage : Output voltage varies with
‘pinfor | S-meter indication.
S-meter.
20
ACC2 pin assignments
Pin number : Symbol Use
| 7 NC | No connection
8 | GND | Grounding
|
| This is the standby pin used;
exclusively for the terminal
unit. When this pin is used
for standby, the microphone:
‘input is automatically shut
off during transmission.
9 PKS
È T
10 NC No connection.
This is the MIC (microphone):
| input pin from the terminal
1i PKD | unit. The input level is
| approximately 20 mV.
' Grounding (The shielded:
wire of the audio output:
12 GND
i | terminal is connected here.)
j H : Standby terminal.
13
SS
|
Grounding
places
into
the
‘transmit mode. !
4 IF OUT jack
This
jack
is
for
the
band
scope
of
the
station
monitor.
IF t is for connection to the SM-230 for Pan Display.
(8.83 MHz)
IF
2
is
for
connection
to
the
SM-230
for
RX
Modulation
Display.
(100
kHz)
©) PHONE PATCH jacks
The
IN
terminal
is
used
for
transmit
audio
from
the
phone
patch
(600
©).
The
OUT
terminal
is
used
for
received
audio
from
the
transceiver
to
the
phone
patch
(600
N).
These
jacks
can
also
be
used
for
input
to
and
from
SSTV,
or
RTTY
terminals.
22 REMOTE connector
This
jack
is
for
connection
with
a
linear
amplifier.
From standby switch
(PTT circuit for foot
switch)
ALC input ~
+12VDC On
transmit max 10mA
View from cord
wks:
oo
ob
~GND
Internal wiring