Kenwood TS-830S User manual

@KENWOOD
Model TS-830S
INSTRUCTION MANUAL

AFTER UNPACKING
It is advisable to save all original packing cartons (inner and
outer) to protect your valuable transceiver from damage
should you wish to transport it for remote operation or ship it
for after-sales service.
The following explicit definitions apply in this manual. Be
sure to read these definitions:
WARNING: Personal injury may occur — do not
disregard.
CAUTION:
Read Operating Manual Section 4. before placing
transmitter in service.
WARNING:
HIGH VOLTAGES PRESENT.
CONTENTS ~
NOTE: If disregarded, inconvenience only — no
damage or personal injury.
CAUTION: Equipment damage may occur, but not
personal injury.
SPECIFICATIONS 5 7.2 85.2 72sssccsspsecaptecasssattsbinsto ieee cia
SECTION 1. INTRODUCTION AND FEATURES.... 4
SECTION 2. INSTALLATION
2.1. Unpacking
2.2 Operating Location
2.3 Cabling
2.4 Microphone
2.5 Key
2.6 External Speaker and Headphones
2.7. Ground
2.8 Antenna
SECTION 3. CONTROLS AND THEIR FUNCTIONS 8
3.1 Front Panel
3.2 Rear Panel
SECTION 4. OPERATION. « .ic55:.c2strcc>ocnccceeasspaessnneae 14
4.1 Reception (I)
(1) Basic Procedures for Receive Operation
(2) WWV Reception
4.2 Reception (II)
(1) RF ATT Switch
(2) RF Gain Control
(3) AGC (Automatic Gain Control)
(4) RIT/XIT
(5) VBT Control (Variable Bandwidth Tuning)
(6) IF Shift
(7) VBT and IF Shift Combination
(8) Notch Control
(9) Noise Blanker (NB)
(10) Tone Control
4.3 Transmission (I)
(1) SSB Operation
4.4 Transmission (II)
(1) Speech Processor
(2) VOX (Voice Operated Transmit) Operation
(3) XIT (Transmitter Incremental Tuning)
(4) Monitor
(5) CW Operation
4.5 Fixed Channel Operation
4.6 Digital Display Calibration
4.7 Analog Dial Calibration
SECTION 5. OPTIONAL ACCESSORIEG................ 22
5.1 Optional Accessories
5.2 Installation of Accessories
SECTION 6. MAINTENANCE AND ALIGNMENT .. 26
6.1 General
6.2 Service Position
6.3 Receiver Adjustments
6.4 Transmitter Adjustments
6.5 Transmitting on WARC BANDS
6.6 Ordering Spare Parts
6.7 Service
TROUBLESHOOTING ..
BLOCK DIAGRAM
SCHEMATIC DIAGRAM.
INTERNAL VIEW
31

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TS-830S SPECIFICATIONS |
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[GENERAL]
Frequency Range ...................00cceceeeeeeeeees 160m Band 1.8 ~ 2.0MHz
80m Band 3.5 ~ 4.0 MHz
40m Band 7.0 ~ 7.3 MHz
* 30 m Band 10.1 ~ 10.15 MHz
(10.0 MHz WWV)
20 m Band 14.0 ~ 14.35 MHz
* 17 m Band 18.068 ~ 18.168 MHz
15 m Band 21.0 ~ 21.45 MHz
* 12 m Band 24.89 ~ 24.99 MHz
10 m Band 28.0 ~ 29.7 MHz
Wadlesyiivarnias Sredacedixtb sede pemyaaiesind anes SSB/CW
Power Requirement . .. 120V AC (220V modifiable), 50/60 Hz
Power Consumption.... .. Transmit: 295 watts
Receive: 32 watts (with heaters off)
Dimensions 5 si5.5 scavsiccesgccesanestneeansinst ees 333 (13.3) x 133 (5.3) x 333 (13.3) mm (inch)
IWGIGIG rss ses coc unceapneetstkteaatiewdestoeeerceeres 13.5 kg (29.8 Ibs)
[TRANSMITTER]
*Final POWGrINPUl...66.050s005deecccnsebevecreacesens 220W PEP for SSB operation
180W DC for CW operation
Audio Input Impedance .......................005 5002 ~ 50 kQ
RF Output Impedance ... . 502 ~ 752
Frequency Stability . Within 100 Hz during any 30 minute period after warmup.
Within 1 kHz during the first hour after 1 minute of warmup.
Carrier Suppression........................0..ccceeee Better than 40 dB
Sideband Suppression ... . Better than 60 dB
Spurious Radiation . Better than 60 dB
Harmonic Radiation . Better than 40 dB
Audio Freq. Response - 400 to 2,600 Hz, within —6 dB
3rd Order Intermodulation Distortion....... Better than —36 dB
[RECEIVER]
Receiver Sensitivity ....
Image Ratio .
IF Rejection .
Receiver Selectivity
SSB/CW WIDE
CW NARROW ....
.. 0.25 wV at 10 dB S+N/N
. Better than 60 dB
. Better than 80 dB
. 2.4 kHz (—6 dB), 3.6 kHz (—60 dB)
. With YK-88C (option) 500 Hz (—6 dB),1.5 kHz (—60 dB)
With YK-88CN (option) 270 Hz (—6 dB), 1.1 kHz (—60 dB)
With YG-455C (option) 500 Hz (—6 dB), 820 Hz (—60 dB)
With YG-455CN (option) 250 Hz (—6 dB), 500 Hz (—60 dB)
,
Variable Bandwidth
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With optional filter YK-88C and YG-455C added.
Notch-filter Attenuation ... . Better than 40 dB
Audio Output Impedance . . 8~ 162
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*Will
transmit
on
the
new
30,
17,
and
12
meter
bands.
Diodes
installed
for
preventing
accidental
transmission before government Amateur authorization.
NOTE:
The
circuit
and
ratings
may
change
without
notice
due
to
developments
in
technology.

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1.1 KENWOOD TS-830S
The
TS-830S
is
a
highly
sophisticated
solid
state
Amateur
band
transceiver
employing
only
three
vacuum
tubes.
Operating
on
all
Amateur
bands
between
1.8
and
29.7
MHz,
this
unit
is
constructed
modularly.
The
TS-830S
includes
many
built-in
features
usually
found
as
extras
on
other
transceivers.
Included
are
VOX,
25
kHz
calibrator,
RIT,
RF
attenuator,
and
an
effective
noise
blanker.
The
TS-830S
also
includes
automatic
gain
control
(AGC),
automatic
level
control
(ALC),
semi-break-in
CW
with
sidetone,
a
speech
processor,
speaker
and
built-in
AC
power
supply.
Designed
for
operation
on
SSB
or
CW,
the
TS-830S
delivers
more
than
220
watts
PEP
input.
Any
complicated
electronic
device
will
be
damaged
if
Operated
incorrectly,
and
this
transceiver
is
no
exception.
Please
read
all
of
the
operating
instructions
before
putting
the
TS-830S
on
the
air.
1.2 FEATURES
1. Interference-free DX operation
*
Variable
bandwidth
IF
filter
circuit
(VBT)
The
built-in
VBT
(Variable
Bandwidth
Tuning)
circuit
al-
lows
IF
filter
pass-bandwidth
to
be
varied
as
you
wish
to
eliminate
unpleasant
interference.
It
is
adjustable
independent of the IF shift.
* IF shift circuit
The IF SHIFT is a circuit to shift IF pass-bandwidth
without changing receive frequency. It eliminates
interference
or
adjusts
receive
frequency
characteristic
as desired.
*
High
reliability
455
kHz
notch
circuit
Interference
is
also
eliminated
by
the
built-in
notch
circuit.
The
TS-830S
uses
455
kHz
notch-frequency.
The
notch
circuit
shifts
the
BFO
frequency
and
the
mixer
local
frequency
at
the
same
time,
thereby
equiva-
lently
changing
the
notch
frequency.
Thus,
accurate
notch
characteristic
is
realized
even
when
the
notch
point
is
changed,
completely
eliminating
nearby
inter-
ference signals.
*
NARROW/WIDE
BANDWIDTH
selection
and
optional
filters for enhanced CW operation:
NARROW
or
WIDE
CW
operation
can
be
selected
when
using the following optional filters:
YK-88C
(500
Hz),
YK-88CN
(270
Hz),
YG-455C
(500
Hz),
YG-455CN
(250
Hz)
*Variable tone control circuit.
2. WARC bands
The
TS-830S
fully
covers
160-10
m
Amateur
bands,
including
the
new
WARC
bands
of
10,
18
and
24.5
MHz.
3.
All-in-one,
compact
AC
Power
supply
system
SECTION
1.
INTRODUCTION
AND
FEATURES
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4.
Advanced
circuit
design
for
improved
two-signal
cha-
racteristics.
Cleverly
deisgned
front-end
circuit
compo-
nents
and
receive
circuit
system
assure
excellent
two-signal
characteristics.
Cross-modulation
and
blocking
are
reduced.
5.
TX
final
unit
uses
6146B's
The
finals
are
a
pair
of
6146B
transmitting
tubes.
RF
negative
food
back
and
amplified
ALC
provide
clear,
strong
signals
with
reduced
cross
modulation.
6. Variable level noise blanker
Conventional
fixed
level
noise
blankers
are
sometimes
less
than
effective
in
removing
pulsating
noise
over
weak
signals
or
rejecting
strong
interference
signals.
This
variable
level
noise
blanker
is
equipped
to
control
the
optimum
threshold
level
of
the
gate
pulse
amplifier.
7.
RF
speech
processor
to
increase
average
power
during
SSB
operation
This
is
an
RF
clipper
speech
processor,
using
both
the
455
kHz
and
8.83
MHz
IF’s.
Unwanted
frequency
components
are
removed
by
the
8.83
MHz
crystal
filter,
providing
a
compression
ratio
of
approximately
20
dB.
8.
Transmit
monitor
circuit
The
built-in
monitor
circuit
permits
easy
adjustment
of
the
RF
processor
and
MIC
GAIN.
9.
XIT
(Transmit
Incremental
Tuning)
for
fine
adjustment
of
transmit
frequency
independent
of
receive
frequency.
10.
A
combination
of
precise.
easy-to-read
digital
frequency
indicator and an analog dial.
The
digital
indicator
has
a
Digital
Hold
memory
function.
11.
The
controls
are
arranged
on
the
die-cast
front
panel
for
easy operation.
12.
A
full
variety
of
accessory
circuits
are
provided:
The TS-830S includes:
VOX
circuit
(available
for
Semi-Break
in),
Marker
circuit,
side-tone
oscillator,
3-position
AGC
circuit
(OFF,
FAST,
SLOW),
RF
ATT,
FIX
circuit,
Audio
frequency
cha-
racteristics
selecter
circuit
for
each
MODE,
CW
zero-in
circuit,
IF
OUT
terminal,
HEATER
switch,
SG
switch,
Built-in
speaker.

2.1 UNPACKING
Remove the TS-830S from its shipping container and
packing material and examine it for visible damage. If the
equipment has been damaged in shipment, notify the
transportation company immediately. Save the boxes and
packing material for future shipping or moving.
The following accessories should be included with the
tranceiver.
1. Instruction Manual (B50-2738-00) .................. 1
2. Plastic Extension Feet with Screws
(J02-0049-14)
3. Speaker Plug 1/8” (E12-0001-05).
4. 7P DIN Plug (E07-0751-05)
5. Fuse (6A) (FO5-6021-05) .
ae re) ee,
2.2 OPERATING LOCATION
As with any solid state electronic equipment, the TS-830S
should be kept from extremes of heat and humidity.
Choose an operating location that is dry and cool, and avoid
Operating the transceiver in direct sunlight. Also, allow at
least 3 inches clearance between the back of the equipment
to any object. This space allows an adequate air flow from
the ventilating fan to keep the transceiver cool.
INSTALLATIO
CAUTION:
Do not operate the radio in an RF Field greater than 6V RF.
Receiver damage may occur.
2.3 CABLING (See Figure 2-1.)
™ GROUND
To prevent electric shock, and reduce the possibility of TVI
and BCI, connect the transceiver to a good earth ground,
through as short a lead as possible. Use ground rods or
metal cold water feedline.
@ ANTENNA
Connect through a 50 ohm antenna feedline to the coaxial
connector on the rear panel.
@ KEY
If CW operation is desired, connect a key to the KEY jack.
Use shielded line or coaxial cable.
@ POWER CONNECTIONS
Make sure the POWER switch on the front panel is turned
off, the stand-by switch is in the REC position, and the line
voltage is correct. Then connect the POWER cord to the line
source.
ocensr-canen
@ AC POWER
For fixed station operation, the TS-830S operates from 120
VAC, 50/60 Hz power source capable of supplying 280
watts or more.
2.4 MICROPHONE
Attach the microphone connector to a suitable microphone,
as shown in Figure 2-1. Be sure the microphone PTT switch
is separate from the microphone circuit, as shown in Figure
2-3.
It should be noted that a microphone with a 3P plug using a
common ground terminal should not be used.
The microphone input is designed for 50 kohm micropho-
nes. The choice of microphone is important for good speech
quality, and should be given serious consideration. The
crystal lattice filter in the transceiver provides all the
restriction mecessary on audio response, and _ further
restriction in the microphone is not required. It is more
important to have a microphone with a smooth, flat
response throughout the speech range.
Follow the microphone manufacturer's instructions for con-
necting the microphone cable to the plug. With many
microphones, the push-to-talk button must be pressed to
make microphone audio available. For VOX operation, this
unwanted feature may be eliminated, if desired, by opening
the microphone case and permanently connecting the
contacts which control the microphone audio.
Standard microphone sensitivity is within the range of —50
dB to —60 dB. If a microphone having a higher sensitivity
is used, the ALC and compressor circuits will not function
properly. In this case, insert in the mike line an attenuator as
shown in Fig. 2-1. A typical MIC gain control setting is 12
o'clock. If you must run this control at 9 o'clock or less, use
an attenuator.
2.5 KEY
If CW operation is desired, connect a key to the KEY jack.
Use shielded cable, and a standard (mono or 2P) phone plug.

Headphones
Use headphones of 4 to 162 im-
pedance. The optional HS-4, HS-5
headphones best suited for use with
the TS-830S. Stereo-type stet pho-
nes can also be used.
Microphone
Either a low or high impedance
microphone (5002 to 50 k{2) can be
used. The P.T.T. switch should be
isolated from the mic circuit (shown
in “A”). Use a microphone with a
separate switch and MIC line so both
P.T.T. and VOX are available.
View from cord side
Transformer
Microphone [) © 3 g
{a) this & Switch 2
Transformer
Microphone ) e 3 g g Switch
(b) not this
Microphone ) e€ 3
Transformer
\ Switch
(c) not this
TS-830S
Microphone
P Microphone connector
Antenna
Key
For CW operation, connect your key
to the KEY jack at the rear. Use
shielded cable.
monitor scope. Connect to the rear EXT
SP jack using the supplied
plug
Monitor scope External speaker
a © Of} sm-220 Besides the built-in
° © ooff Can be used as a speaker, an external
band scope or a speaker can also be used.
arrestor
GND terminal
It is recommended that a ground
lead be connected to the GND ter-
minal at the rear of the set to prevent
the possibility of electric shock, TVI
and BCI. Use as short, and heavy a
lead as possible.
Linear amp
Power supply
Transverter
120V 50/60 Hz :
External VFO
Fig. 2-1 Connection

2.6 EXTERNAL SPEAKER AND
HEADPHONES
Receive audio output from the TS-830S is 1.5 watts at 4 to
16 ohms. The TS-830S has a built-in the SPEAKER jack on
the rear panel. The speaker may be an 8-ohm perma-
nent-magnet type, 4 inches or larger. The internal speaker is
disconnected when an external speaker is used. Headpho-
nes should also be 4 to 16 ohms impedance. When the
headphones are connected to the front-panel PHONES jack,
the speaker is disabled.
2.7 GROUND
To prevent electric shock, and reduce the possibility of TVI
and BCI, connect the transceiver to a good earth ground
through as short and heavy a lead as possible.
2.8 ANTENNA
Any of the common antenna systems designed for use on
the high frequency amateur bands may be used with the
TS-830S, provided the input impedance of the transmission
line is not outside the capability of the pi-output matching
network. The transmission line should be coaxial cable. An
antenna system which shows a standing wave ratio of less
than 2:1 when using 50 or 75 ohm coaxial transmission
line, or a system that results in a transmission line input
impedance that is essentially resistive,, and between 15 and
200 ohms will take power from the transceiver with little
difficulty. If openwire or balanced type transmission line is
used with the antenna, a suitable antenna tuner with balun
is recommended between the transceiver and the feed line.
Methods of construction and operating such tuners are
described in detail in the ARRL Antenna Handbook, and
similar publications. For operation on the 160, 75 and 40
meter bands, a simple dipole antenna, cut to resonance in
the most used portion of the bands, will perform satisfacto-
rily. For operation of the transceiver on the 10, 15 and 20
meter bands, the efficiency of the station will be greatly
increased if a good directional rotary antenna is used.
Remember that even the most powerful transceiver is
useless without a proper antenna.
NOTE:
Protect your Equipment — Use a LIGHTING ARRESTOR.
Mobile Station — Mobile antenna installations are critical,
since any mobile antenna for use on the high frequency
bands represents a number of compromises. Many
amateurs lose the efficiency of their antenna through
improper tuning. Remember the following points when
using the TS-830S with a mobile antenna.
The
“Q”
of
the
antenna
loading
coil
should
be
as
high
as
possible.
The
loading
coil
must
be
capable
of
handling
the
power
of
the
transceiver
without
overheating.
In
the
CW
mode
the
power
output
of
the
transceiver
will
exceed
80
watts.
The
SWR
bridge
is
a
useful
instrument,
but
unfortunately
it
is
quite
often
misunderstood,
and
overrated
in
importance.
Basically,
the
SWR
bridge
will
indicate
how
closely
the
antenna
load
impedance
matches
the
transmission
line.
With
long
transmission
lines,
such
as
will
be
used
in
many
fixed
station
installations,
it
is
desirable
to
keep
the
impedance
match
fairly
close
in
order
to
limit
power
loss.
This
is particularly
true
at
the
higher
frequencies.
The
longer
the
line,
and
the
higher
the
frequency,
the
more
important
SWR_
becomes. However,
in
mobile
installations
the
transmission
line
seldom
exceeds
20
feet
in
length,
and
an
SWR
of
even
4 to
1
adds
very
little
power
loss.
The
only
time
SWR
will
indicate
a
low
figuro
is
when
the
antenna
presents
a
load
close
the
50
ohms,
but
many
mobile
anten-
nas
will
have
a
base
impedance
as
low
as
15
or
20
ohms
at
their
resonant
frequency.
In
such
a
case,
SWR
will
indicate
3
or
4
to
1,
and
yet
the
system
will
be
radiating
efficiently.
The
really
important
factor
in
your
mobile
antenna
is
that
is
should
be
carefully
tuned
to
resonance
at
the
desired
frequency.
The
fallacy
in
using
an
SWR
bridge
lies
in
the
fact
that
it
is
sometimes
possible
to
reduce
the
SWR
reading
by
detuning
the
antenna.
Field
strength
may
actually
be
reduced
in
an
effort
to
bring
SWR
down.
Since
field
strength
is
the
primary
goal,
we
recommend
a
field
strength
meter
for
antenna
tuning.
For
antenna
adjustments,
the
transceiver
may
be
loaded
lightly,
using
the
TUNE
position
instead
of
operating
at
full
power
output.
This
will
limit
tube
dissipation
during
adjustments,
and
will
also
help
to
reduce
interference
on
the
frequency.
In
any
case,
do
not
leave
the
transmitter
on
for
very
long
at
one
time.
Turn
it
on
just
long
enough
to
tune
and
load,
and
get
a
field
strength
reading.
Start
out
with
the
antenna
whip
at
about
the
center
of
its
adjustment
range.
Set
the
VFO
to
the
desired
operating
frequency
and
then
adjust
the
PLATE
control’
for
a
dip,
and
then
the
LOAD
control.
Then
observe
the
field
strength
reading.
The
field
strength
meter
may
be
set
on
top
of
the
dash,
on
the
hood,
or
at
an
elevated
location
some
distance
from
the
car.
Change
the
whip
length
a
half
inch
or
so
at
a
time,
retune
the
finals
each
time,
and
again
check
the
field
strength
at
the
antenna.
Continue
this
procedure
until
the
point
of
maximum
field
strength
is
found.
This
adjustment
will
be
most
critical
on
75
meters,
somewhat
less
critical
on
40,
until
on
10
meters
the
adjustment
will
be
quite
broad.
After
tuning
the
antenna
to
resonance,
the
finals
can
be
loaded
to
full
power.

@ NOTCH INDICATOR LED ®»
@ VFO INDICATOR LED.
@ FIX INDICATOR LED
@ DIGITAL DISPLAY
@ RFATT INDICATOR LED ®
© DH SWITCH
© METER
@ PROC SWITCH @)
@® COMP LEVEL CONTROL ():
@ NB SWITCH ®
(® NB LEVEL CONTROL ®)
@ AGC SWITCH ®
@ METER SWITCH
@ STAND-BY SWITCH®
@ VOX GAIN @
a3) VOX DELAY @,
@® PHONES JACK ®)
(® MIC CONNECTOR ©)
( MODE SWITCH
@
MIC
GAIN
CONTROL
pedal
@® CAR LEVEL CONTROL ©:
@ FIX SWITCH
@) ANALOG DIAL SCALE
@) MAIN TUNING
@ LOAD CONTROL @
———_—_——————-‘# PLATE CONTROL @
@) DRIVE CONTROL
30 RIT/XIT LED
@) RIT/XIT CONTROL
32 BAND SWITCH
@ +0.5 SWITCH
@ RFGAIN ®
@ AFGAIN ®
(36) POWER SWITCH
G2) HEATER SWITCH
G8 VBT CONTROL ®
39 TONE CONTROL ®
@ IF SHIFT CONTROL ®
@ NOTCH CONTROL ®
@ MONI SWITCH ©:
@ NOTCH SWITCH ®
@ RF ATT SWITCH ®-
@® XIT SWITCH @®
@ RIT SWITCH €
®

3.1 FRONT PANEL
The symbol after the part name indicates:
®: Active only during reception.
@: Active only during transmission
No symbol: Always active
1. NOTCH INDICATOR LED ®
This indicator, (light emitting diode), illuminates when the
NOTCH circuit is turned ON.
2. VFO INDICATOR LED
The VFO indicator illuminates when the internal VFO
controls transceiver operation. The indicator is not lighted
during fixed channel or remote VFO operation.
3. FIX (FIXED CHANNEL) INDICATOR LED
The FIX indicator illuminates when the internal fixed
frequency oscillator controls transceiver operation.
4. RF ATT INDICATOR LED ®
This illuminates when the RF ATT is turned ON.
5. DH (DISPLAY HOLD) SWITCH
With this switch ON, the display frequency remains ON even
if the main tuning is changed. This feature is used to memo-
rize the original frequency when checking another frequency.
6. METER
The meter monitors six different functions, depending on
METER switch position. In receive the meter is
automatically an S-meter, and shows received signal
strength on a scale of O to 40 dB over S9. In transmit,
meter function depends on the position of the METER
switch, as described below. This is an average-responding
meter, NOT peak-reading.
7. PROC (SPEECH PROCESSOR) SWITCH @
This switch is used during SSB operation. Set the switch to
the ON position and the speech processor will be activated,
increasing the average talk power. Compression level can
be adjusted by the processor control (8).
8. COMP LEVEL CONTROL @®
This control adjusts compression level. Set the meter switch
(12) to the COMP position and adjust this control while
observing the meter COMP scale.
9. NB SWITCH ®
With the lever switch UP, the noise blanker circuit is turned
ON reducing pulse-type (ignition) noise. Power-line, radar,
QRM and atmospheric “white” noises will not operate the
blanker. The noise blanker circuit operating level is
adjustable by the noise blanker control (10).
10. NB LEVEL CONTROL ®
This control adjust the noise blanker circuit (operating level)
according to receiving conditions or noise level.
11. AGC SWITCH ®
This controls the AGC (Automatic Gain Control) circuit:
walenieets AGC disabled (no AGC).
...
Normally
used
for
CW
operation.
..
Normally
used
for
SSB
operation.
12. METER SWITCH
This determines the transmit meter function:
ALC (Automatic Level Control)
Monitors internal ALC voltage, or the ALC voltage
feedback from a linear amplifier operated in conjunction
with the TS-830S. For SSB operation the ALC reading
for voice peaks should be within the indicated ALC
range. ALC voltage adjustment is made with the MIC
control for SSB and with the CAR control for CW.
IP (Plate Current)
In this position the meter monitors final tube plate cur-
rent. The scale is calibrated from O to 350 ma.
RF (Output Power)
This monitors relative output power of the transceiver.
There is no meter scale for this position. Normally the
reading should be adjusted (with the RF VOLT control)
for a 2/3 scale reading.
COMP
This indicates compression level when the speech
processor is operating.
HV (High Voltage)
This position monitors the high voltage power supply.
The meter scale is calibrated from O to 10, indicating O
to 1000 volts.
13. STAND-BY SWITCH @®
This two-position lever switch selects:
REGCi
8
casssedics
The
transceiver
is
receiving
unless
the
microphone
PTT
switch,
or
the
VOX
circuit
is
activated.
-- Locks the unit in transmit.

14. VOX GAIN @
This controls sensitivity of the VOX (Voice Operated
Transmit) circuit.
15. VOX DELAY CONTROL @®
The DELAY control adjusts the hold time for VOX or break-in
CW operation. Adjust for individual preference.
16. PHONES JACK ®
The headphones jack allows use of a 4 to 16 ohm
headphone through a 1/4” phone plug. When phones are
used the speaker is disconnected.
17. MIC CONNECTOR @
The four pin connector allows use of a PTT microphone.
Figure 2-1B shows plug wiring.
18. MODE SWITCH
The mode switch selects type of emmission; and TUNE.
TUNE simaieovs This position provides reduced carrier and
shorted key line for transceiver tuning. (Input
power to the final section is reduced to
prevent tube damage during tune-up.)
. Used for CW operation. A high-cut filter is
inserted in the receiver audio circuit to
reduce unwanted noise.
SSB filter selected for WIDE receive
bandwidth.
GWEN incense (NARROW) Used for CW operation with CW
filters YK-88C (500 Hz), YK-88CN (270 Hz),
YG-455C (500 Hz) or YG-455CN (250 Hz),
which are available as optional accessories.
Without an optional CW filter installed, the
pass-bandwidth is the same as in CW.W.
SB steweeested Used for upper-sideband operation. Inter-
national Amateur practice dictates the use of
USB on the 10, 14, 18, 21, 24.5 and 28
MHz bands.
CSB) secu ayes Selects lower-sideband. International
Amateur practice dictates the use of LSB on
the 1.8, 3.5 and 7 MHz bands.
19. MIC GAIN CONTROL @®
This control adjusts microphone amplifier gain for SSB
operation. Adjust for an on-scale ALC reading on voice
peaks.
In the CAL ON position, receive frequency can be calibrated
at 25 kHz intervals using the built-in oscillator.
10
20. CAR LEVEL CONTROL @
This controls carrier level during CW operation. Adjust for
approximately 250 mA of plate current.
21. FIX SWITCH
Place this switch ON for fixed channel operation;
(an optional crystal is required. Trio-Kenwood does not
supply these crystals.)
22. MONI (MONITOR) SWITCH @
This delivers a sample of the demodulated transmit IF signal
to the AF for monitoring modulation.
23. RF ATT SWITCH ®
With this switch ON, A 20 dB attenuator is inserted in the
antenna circuit, protecting the RF amplifier and mixer from
overload on strong input signals.
24. DIGITAL DISPLAY
The digital display indicates operating frequency to the
nearest 100 Hz.
25. ANALOG DIAL SCALE
The mono-scale permits direct analog frequency readout
over the O to 500 kHz range, graduated at 1-kHz intervals.
Operating frequency equals the dial (in kHz) plus the BAND
switch frequency (in MHz). An additional 50 kHz both
above and below the 500 kHz range is also covered.
26. MAIN TUNING
This controls the VFO, selecting the transceiver’s operating
frequency. The indented knob is convenient for quick
tuning.
27. LOAD CONTROL @
This controls the loading of the network between the final
section and the antenna. Adjustment is described in Section
4.
28. PLATE CONTROL @
This controls the plate tuning of the final amplifiers. Ca-
libration is approximate.
29. DRIVE CONTROL
This control tunes the plate tank circuit of the 12BY 7A
driver as well as the receiver's antenna and mixer coils. In
receive the DRIVE control is tuned for maximum sensitivity
(maximum S-meter deflection), and in transmit for a
maximum ON-SCALE ALC reading. These points occur
concurrently. Tuning for one also achieves the other.

30. RIT/XIT INDICATOR LED
This indicator will light when the RIT switch (44) or XIT
switch (43) is ON.
31. RIT/XIT CONTROL
This control allows the receive frequency, transmit frequency
or both to be shifted without using the main tuning control.
With the RIT switch (44) ON, the RIT circuit is activated to
shift only the receive frequency.
With the XIT switch (43) ON, the XIT circuit is activated to
shift only the transmit frequency.
When both switches are ON, both frequencies are shifted.
The center (O) position equals no shift.
32. BAND SWITCH
The 10-position switch selects all Amateur bands from 1.8
to 29.7 MHz. To select the 28.5 or 29.5 MHz bands, push
the +0.5 switch (33) ON.
Use the 10 MHz band for WWV reception. An AUX receive
band is also available. :
Coilpack (Receiver front-end) and PLL components must be
installed and aligned for the specific receive frequency range
desired.
33. +0.5 SWITCH
This switch is used in conjunction with the bandswitch (32.).
Depress the switch with the bandswitch set to “28”, and the
transceiver will operate in the 28.5 MHz band. When the
bandswitch is set to 29", the transceiver will operate in the
29.5 MHz band. This switch has no function at any other
bandswitch position.
34. RF GAIN ®
This adjusts receiver RF amplifier gain. Turn fully clockwise
for maximum gain and a correct S-meter reading.
35. AF GAIN ®
This adjusts receiver audio level. Volume increases
clockwise.
36. POWER SWITCH
This switches all power to the transceiver.
37. HEATER SWITCH
This switch turns the three transmitting tube filaments ON.
38. VBT CONTROL ®
The
VBT
(Variable
Bandwidth
Tuning)
continuously
adjusts
the
IF
Filter
bandwidth
to
eliminate
radio
interference.
For
normal
operation,
this
control
may
be
left
fully
clockwise
(NORMAL
Position).
39. TONE CONTROL ®
This
adjusts
audio
tone
quality
of
received
signals.
Adjust
as
desired.
40. IF SHIFT CONTROL ®
During
reception,
the
center
frequency
of
the
IF
crystal
filter
can
be
shifted
+1.2
kHz
facilitating
adjustment
of
tone
qua-
lity.
or
eliminating
interference
from
nearby
frequencies.
For
normal
operation,
set
to
the
center
detent
position
(click
stop).
41. NOTCH CONTROL ®
Turn
the
NOTCH
switch
ON
to
activate
the
Notch
filter.
Adjust
the
notch
frequency
to
null
a
beat
(tone
interference)
signal.
42. NOTCH SWITCH ®
This
switch
controls
the
NOTCH
circuit
and
indicator.
43. XIT SWITCH @
This push switch activates the XIT (Transmit Incremental
Tuning) circuit and the XIT indicator. By adjusting the XIT
control, the VFO transmit frequency can be varied +2 kHz
without changing the receive frequency. ©
44. RIT SWITCH ®
This push switch activates the RIT (Receiver Incremental
Tuning) circuit, and the RIT indicator. By adjusting the RIT
control, the VFO receive frequency can be varied +2 kHz,
without changing the transmit frequency.
If,
both
switches
are
ON,
both
the
transmit
and
receive
frequencies
will
shift
simultaneously.
11

@ COOLING FAN ©
@ RF VOLT CONTROL @
@ ANTENNA CONNECTOR
@ BIAS CONTROL @
® GND LUG
© SG SWITCH @
® KEY JACK @
@ ANTI VOX CONTROL @
( SPEAKER JACK ®
@® IFOUT1®
@® IFOUT2®
@ EXTERNAL VFO
CONNECTOR
@ XVERTER CONNECTOR
(@® REMOTE CONNECTOR
@ AC POWER CABLE
3.2 REAR PANEL
1. COOLING FAN @
This fan cools the RF amplifier section to insure reliable and
efficient operation.
2. RF VOLT CONTROL @®
This adjusts the RF output meter reading. Set for 2/3 scale
reading during CW transmission.
3. ANTENNA CONNECTOR
This SO-239 coax connector should be attached to a
suitable 50Q antenna for transmitting and receiving.
4. BIAS CONTROL @®
This adjusts the bias voltage to the (6146B) amplifier tubes.
Clockwise rotation increases the idling plate current.
Section 4 describes adjustment to 60 ma.
12
(@® AC FUSE
5. GND (GROUND) LUG
To
prevent
electric
shock,
as
well
as
RFI
and
BCI,
connect
the
transceiver
to
a
good
earth
ground.
6. SG SWITCH @
This
slide
switch
controls
the
screen
grid
voltage
to
the
final
tubes.
For
neutralizing,
switch
OFF.
The
switch
remains
ON
for
normal
operation.
7. AC POWER CABLE
This
cable
is
used
to
connect
an
AC
power
source
to
the
transceiver.
8. KEY JACK @
Using
shielded
line,
connect
a
key
to
this
1/4”
phone
jack
for
CW
operation.
Key
open-terminal
voltage
is
approximately —65V.

9. ANTI VOX CONTROL @
Adjust the control to prevent speaker output from tripping
the VOX.
10. SPEAKER JACK ®
The receiver audio output can be connected through this
jack to an external 4 to 16 ohm speaker. The internal
speaker is disconnected when an external speaker is con-
nected.
11. IF OUT 1®
A Buffered Mixer output for pan display use. This is a
wide-band, low-level IF signal.
12. IF OUT2 ®
A high-level, narrow-band IF output, taken before the RX
Produce
Detector,
for
scope
display
of
received
signal
waveform.
13. EXTERNAL VFO CONNECTOR
This
DIN
connector
is
used
to
interface
the
KENWOOD
VFO230
external
VFO.
The
interconnecting
cable
is
provided
with
the
VFO-230.
PIN FUNCTION PIN FUNCTION
1 VFO signal VFO control
2 Relay control Display control
(+ on transmit)
3 +9V Ground
CW freq. shift contro! +12V
14. X VERTER CONNECTOR
This
DIN
connector
is
used
to
interface
a
VHF
transverter.
FUNCTION FUNCTION
1 Ground Transverter input
2
Relay
control
Transverter
ALC
input
(+
on
transmit)
3 Ground Transverter output
4
X-verter
ON-OFF
HF
ANT
output
control
15. REMOTE CONNECTOR
This
connector
is
used
to
interconnect
a
linear
amplifier
or
other
accessory
item.
Se
PIN FUNCTION PIN FUNCTION
1 Record output 5 Normally closed
(100
~
150
mV
AF)
(relay
contact)
4 Relay common 6 ALC input
terminal ALC threshold level
(NOT grounded) approx. —6V
3 PTT line 7 No connection
4 Normally opened
(relay contact)
—.— TT
16. AC FUSE
This
fuse
protects
the
transmitter
power
supply
against
short
circuits.
Never
use
a
higher
amperage
fuse
than
specified;
it
will
eventually
cause
extensive
damage.
If
the
fuse
blows,
try
to
determine
the
cause
before
replacing.
For 120 volt operation use a 6 ampere fuse.
13

SECTION 4. “OPERATION
(Uv aunttrsetttde cette
Setting for reception (A)
Set to desired band
RF
Fully
OFF
Fully counter-
clockwise
SSB reception:
SLOW
CW reception:
FAST
Set to desired MODE |
AF
Fully
[orF
{OFF
clockwise
counter-
clockwise
Setting for transmission (A
Adjust for Adjust for
Center max RF Ip dip
Set to desired
BAND
Transmit not
possible on
10, 18 or
24.5 MHz
ON
Adjust while
Setting for reception
To antenna (~
NORMAL
AC120V
—s
Fig. 4-1 Control and Switch Settings
Use TUNE position | | transmitting
when tuning
4.1 RECEPTION (I)
NOTE:
Set
the
MIC
and
CAR
controls
to
minimum
to
prevent
accidental
transmission
before
tune-up
is
completed.
The
TS-830S
must
be
operated
into
a
50
ohm
antenna
or
dummy
load
with
an
SWR
less
than 2:1.
Random
length
wire
antennas
or
light-bulb
dummy
loads
cannot
be
used.
Conventional
half-wave
dipoles
and
beam
antennas
should
only
be
used
at
or
near
their
resonant
frequency.
Exceeding
an
SWR
of
2:1
can
damage
the
output
stage
of
the
transceiver.
Adjust DRIVE control
for maximum deflection.
NB.
oS
14
.(1) Basic Procedures for Receive Operation
The TS-830S has many advanced features such as VBT, IF
SHIFT, NOTCH, etc. to assure enhanced receive operation.
For the use of these specialized controls and switches, refer
to Section 4.2 “Reception (Il).
With a suitable antenna and microphone or key connected
to the transceiver, set the controls as described in Fig. 4-1.
Turn the POWER switch ON. The meter, dial scale, and VFO
indicator will light. indicating the transceiver is operating.
Advance the AF GAIN control clockwise until some receiver
noise is heard in the speaker. Turn the main tuning dial
within the frequency range of the Amateur band chosen until
a signal is heard. Tune the signal for clearest reception, and
then adjust the DRIVE control for maximum S-meter
deflection.
(2) ‘(WWV Reception
Set the band switch to “10” and turn the main tuning
control to 10.0 MHz.

4.2 RECEPTION (II)
This section covers operation of controls and switches to
provide the maximum performance from the TS-830S.
(1) RF ATT SWITCH
The input to the receive RF amplifier is attenuated
approximately 20 dB, providing distortion-free reception.
This feature may be used in cases of receiver overload,,
caused either by a strong local signal, or during weak signal
reception when a strong adjacent signal may blank the
receiver.
(2) RF GAIN CONTROL
RF GAIN is controlled by changing the AGC threshold
voltage. Adjust the RF GAIN so the S-meter does not
deflect excessively. This also reduces noise during
reception. For normal operation, this control should be turn-
ed fully clockwise for maximum sensitivity.
(3) AGC (AUTOMATIC GAIN CONTROL)
Set the AGC switch to the appropriate position: Generally
for SSB, SLOW, for CW FAST, and for very weak signals, the
AGC may be turned OFF.
Simultaneous Use of the RF GAIN CONTROL and AGC
Switch
If a strong signal (such as a local station) appears in the vici-
nity 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, turn the RF GAIN
down so the meter pointer remains at about the original
deflection peak and turn the AGC switch OFF. This will
eliminate the unwanted AGC voltage and permit clear
reception.
(4) RIT/XIT
First set the RIT/XIT control to center, and turn the RIT
switch ON.
The RIT/XIT control allows shifting the receive frequency by
approximately +2 kHz without changing the transmit
frequency.
With the RIT switch ON, the receive frequency can be
adjusted by using the RIT control.
With both the RIT and XIT switches ON, both the transmit
and receive frequencies can be shifted. +
For XIT switch operation, refer to Section 4.4 “Transmission
(iy.
NOTE:
When the RIT is ON, transmit frequency is different from the
receive frequency. For normal operation, leave the RIT
switch OFF. It should be turned ON only when needed.
(5) VBT CONTROL (Variable Bandwidth Tuning)
This
control
is
used
to
eliminate
radio
interference
by
changing
the
IF
passband-width.
Use
this
control
in
conjunction
with
the
IF
SHIFT
and
NOTCH
filter
to
obtain
optimum
results.
By
setting
the
VBT
control
to
the
NORMAL
position,
maximum
passband-width
is
obtained.
The
IF
filter
passband-width
is
narrowed
as
the
control
is
adjusted
counterclockwise,
while
center
frequency
remains
unchanged.
Fig.
4-4
illustrates
operation.
The
range
of
variability
depends
on
the
type
of
optional
filter
used.
(i)
When
the
filter
bandwidth
is
2.4
kHz
(without
an
option-
al
filter),
the
passband-width
varies
within
the
range
of
500
Hz
to
2.4
kHz.
See
Fig.
4-3.
(ii)
With
an
optional
YK-88C
filter
(8.83
MHz,
500
Hz
bandwidth)
or
YG-455C
filter
(455
kHz,
500
Hz
bandwidth),
the
passband-width
varies
from
500
Hz
to
approximatly
150
Hz.
Since
an
optional
filter
center
frequency
is
700
Hz
higher
than
that
of
the
built-in
2.4
kHz
filter,
the
CW
receive
tone
will
be
about
800
Hz
without
using
the
IF
shift.
Fig.
4-4
shows
the
VBT
function
with
an
optional
filter.
0.5 2.4(kHz) 500 (Hz)
(A) USB.LSB mode (B) CW 500 Hz filter
Fig. 4-3 VBT Control Positioning |
455 kHz filter
------—
8.83
MHz
filter
6B
fa o 3
3
zB
2
2 g 2
: z 3 3
2 o s.. 2
=) Lied O,
| 28 5,
£3
ge
5m
3 f
4;
g
A
4
Vs.
—2-1
fo
+1A+2
KHz
-2-t
fo+ia+2
kHz
BFO BFO
VBT-@— TONE
NARROW NORMAL NARROW NORMAL
Fig.
4-4
VBT
Selectivity
Characteristics

(6) 1F SHIFT
By using the IF SHIFT during reception, the crystal filter
passband frequency can be shifted approximately +1.2 kHz.
This is achieved by use of a PLL (Phase-Locked Loop) in the
L.O. (local oscillator) circuit. This is a major feature of the
TS-830S and can be used in the following cases:
1. Adjustment of tone quality and interference rejection
during SSB Reception.
When the transceiver is on 20 meters and above, USB
mode, turn the IF SHIFT in the “+” direction and the
lower frequenices are attenuated. Turning the knob in
the “—" direction cuts the higher frequencies. (These
procedures are reversed for LSB operation below 20
meters). Adjust the control to your listening
preference. The IF SHIFT is also effective in eliminating
interference from adjacent receive signals.
2. Adjustment of tone quality during CW operation.
For detailed descriptions, refer to Section 4.4 (5) “CW
Operation”.
3
c
=
a
aod
2
o
o
a
—— Unwanted signal
Desired signal
Unwanted signal eliminated by IF SHIFT.
-2=1
+h
A+2
kHz
=2
—'
fo+tA+2
KHz
BFO
8FO
IF iF
SHIFT—@— NOTCH SHIFT-@)— NOTCH
ex
Fig. 4-5 IF SHIFT Operation |
16
(7) VBT AND IF SHIFT COMBINATION
If
excessive
radio
interference
is
encountered
during
SSB
Operation,
adjust
the
VBT
for
optimum
bandwidth,
and
the
IF
SHIFT
for
maximum
intelligibility.
In CW mode, first adjust the VBT. Turn the IF SHIFT “—”
(counter clockwise), adjusting for approximately 800 Hz
tone. If pitch lower than 800 Hz is desired, adjust the RIT
and IF SHIFT.
aad
2-1 fo +1 +2 kHz 2-1 fo +1A+2 "kHz
BFO BFO
IF IF
SHIFT—@— NOTCH SHIFT—@)— NOTCH
“~
NARROW
NORMAL
NARROW
NORMAL
Fig. 4-6 IF SHIFT and VBT in Combination
=f
(8) NOTCH CONTROL
If a single tone such as a CW signal is superimposed on the
receive signal, turn the NOTCH ON and adjust the NOTCH
control to eliminate or minimize the beat signal. A beat of
approximately 1.5 kHz can be eliminated at the center
Position of the control. In USB or CW mode, a beat signal
lower than 1.5 kHz can be eliminated by turning the control
clockwise. In LSB mode, adjust the control
counterclockwise.

Desired signal
Desired signal
Unwanted signal
nulled by NOTCH
2
—1
fo+l
A+2
kHz
=2
=|
0
+9442
KHz
BFO
BFO
IF
SHIFT—@— NOTCH
NOTCH ON
NOTCH OFF
Fig. 4-7 NOTCH Operation
(9) NOISE BLANKER (NB)
For pulse type noise, such as generated by automotive ig-
nition systems, turn the NB switch ON. Adjusting the NB
LEVEL control varies the blanker’s threshold, eliminating
even low level noises.
If
high
level
signal
or
noise
is
present
on an
adjacent
frequency,
do
not
use
excessive
NB
threshold
LEVEL
as
it
may
distort
the
received
signal.
(10) TONE CONTROL
Adjust this control to obtain desired tone quality.
4.3
TRANSMISSION
(1)
This
section
covers
adjustment
of
the
transceiver
for
transmission.
Refer
to
Fig.
4-1
for
initial
transmitter
switch
settings.
Set
the
main
tuning
to
the
desired
operating
frequency.
(Refer
to
Table
4-1
for
a
summary
of
the
following.)
)
CAUTION:
DO NOT turn the BANDSWITCH while the transceiver is in
transmit mode.
SS
Dummy
load
SS EEE © | Power meter
Fig. 4-8 Testing with a Dummy Load or Power Meter
1. Connect a 502 antenna for the band you will operate or a
dummy load, and connect a Key. SWR must be 2: 1 or
better. The life of the final tubes is directly related to
the SWR of the antenna, and to the length of tuning
periods.
2. Turn POWER and HEATER Switches ON.
. Place the MODE switch to SSB, METER switch to Ip.
4.
Place
the
STAND-BY
switch
to
SEND
and
adjust
bias
to
60
mA
with
the
BIAS
control
on
the
rear
panel.
CAUTION:
If
the
plate
current
is
higher
than
60
mA
do
not
leave
the
stand-by
switch
on
for
more
than
a
few
seconds.
Excessive
plate current shortens the life of the final tubes.
wo
Fig. 4-9 i
17

5.
Place
MODE
switch
to
TUNE,
METER
switch
to
ALC.
Peak
the
DRIVE
control.
If
the
meter
pegs
or
goes
out
of
the
ALC
range,
reduce
the
CARRIER
control
setting
for
an
on-scale
reading.
(the
CAR
countrol
is
a
level
adjustment,
while
the
drive
control
is
a
resonative,
adjustment.)
NOTE:
The
TUNE
position
permits
tuning
of
the
final
tank
circuit
at
reduced
power
without
danger
to
the
tubes.
In
the
TUNE
position,
the
screen
voltage
to
the
finals
is
reduced
approximately
50%
and
the
keying
circuit
is
closed.
Adjust DRIVE control for
maximum meter deflection:
6. Place the meter switch to IP and dip the PLATE. Dip
will be typically only about 5 ma.
Quickly adjust the PLATE control and
then the LOAD control alternately to
peak (maximum meter deflection) the power output.
For maximum
deflection
—vox—— METER AGE
OOD
Na PROC
OOOO
weTER
wOoe
HF TRANSCEIVER
Adjusting point
Adjust PLATE control for
maximum meter deflection.
RF
Fig. 4-11
Fig. 4-12
7. Place the meter switch to RF and peak the LOAD
control.
8. Place the Mode switch to CW, Meter switch to IP.
Close the key and IMMEDIATELY redip the PLATE
control. Reduce the carrier control setting if IP reads
over 265 ma. Open the key.
9. Place the meter switch to RF. Close the key and repeak
the LOAD for maximum RF output. You may at your
option also redip the PLATE for maximum RF output.
Open the key. You are tuned up for CW operation. If
necessary, adjust the RF VOLT control on the rear panel
to bring the output reading to about 2/3 scale. This is a
meter adjustment, not an output adjustment.
NOTE:
Dip point may not always coincide with maximum RF
output. Because neutralization is accomplished on the 10
meter band. For this reason, you may simply adjust both the
PLATE and the LOAD controls for maximum output as
described in both tune-up procedure and summary Table 4-
Ts
PLATE adjustment range
Table 4-1. Summary of Transmitter Tuning Procedure
MODE Switch METER Switch
Stand-by Switch
Procedure
USB or LSB IP
TUNE ALC
TUNE RF
CW RF
18
REC SEND
REC> SEND
REC> SEND
REC> SEND
Adjust BIAS control for 60 ma.
Peak the ALC reading with the DRIVE control.
Peak the RF reading with the PLATE control.
Peak RF output by alternately adjusting the
PLATE and LOAD controls.

(1) SSB OPERATION
Tune the TS-830S as described in steps 1 through 7. Set
the MODE switch per Table 4-2,to USB or LSB and connect
a microphone to the MIC input.
NOTE:
International Amateur practice dictates using USB or LSB as
in Table 4-2.
To operate SSB, connect a microphone. (The Key and
CARRIER control have no effect in SSB mode.) Place the
MODE switch to SSB, METER switch to ALC. Adjust the
MIC gain control for an on scale ALC reading on voice
peaks. (Disregard RF and Ip meter readings in SSB- they
are not accurate or relevant.)
TABLE 4-2.
1.8 MHz Band
3.5 MHz Band
7 MHz Band
10 MHz Band
14 MHz Band
18 MHz Band
21 MHz Band
24.5 MHz Band
28 MHz Band
@ PTT (Push to talk) OPERATION
By using a microphone equipped with a PTT switch, the
transceiver is ready for PTT operation. To key, depress the
PTT switch with the stand-by switch left in the REC position.
NOTE:
1. Transmission is impossible with the BAND switch set to
AUX 10, 18 or 24.5.
2. Do not set the unit to the transmission mode when the
BAND switch is set to AUX or is in midway between
AUX and 1.5. Doing so will damage the drive vacuum
tube 12BY7A.
4.4 TRANSMISSION (II)
To
obtain
maximum
transmitter
performance
from
your
TS-830S
you
should
understand
the
proper
operation
of
the
following
controls
and
switches.
(1) SPEECH PROCESSOR
In SSB operation (particularly DX operation), it may be desi-
rable to increase “talk-power’” by using the speech
processor. This may make the difference between a margi-
nal, and a copiable signal.
Operation
The speech processor system in the TS-830S is anRFclipper
using two filters, one in the VBT circuit and the other in the
IF.
Turn the PROCESS switch ON and place the METER switch
to COMP. Adjust the COMP LEVEL control while speaking
into the microphone in a NORMAL tone of voice for a peak
COMP scale reading of about 10-20 dB. Do not overdrive
the COMPRESSOR: This will deteriorate voice quality,
increase transmitter noise level, and in general make
copying your signal more difficult.
Next. set the METER switch to ALC and adjust the MIC
control
while
speaking
into
the
microphone.
Ensure
that
meter deflection is within the ALC zone.
(2) VOX (Voice Operated Transmit) OPERATION
Adjust the transceiver as described in the previous pa-
ragraph.
Flip
the
VOX
switch
on
and
while
speaking
into
the
microphone, increase the VOX GAIN control until the VOX
relay just operates. For VOX operation it is sometimes
desireable to close-talk the microphone to prevent
background noises from tripping the transmitter.
Check that the ALC reading for voice peaks is still within
range on the meter. If necessary, adjust the MIC control for
proper ALC reading.
If
the
VOX
circuit
is
activated
by
speaker
output,
adjust
the
ANTI-VOX
control
(on
the
rear
panel)
as
necessary
for
proper
VOX
operation.
Do
not
use
excessive
VOX
or
ANTI
VOX
gain
more
than
necessary
to
control
VOX
operation.
If
the
VOX
circuit
transfers
between
words,
or
holds
too
long,
adjust
the
release
time
constant
by
the
DELAY
control.
19

(3) XIT
By using XIT, transmit frequency can be shifted independent
of receive frequency.
With the XIT switch ON, the XIT is controlled by the RIT/XIT
knob and transmit frequency can be shifted by about +2
kHz. When both the RIT and XIT switches are ON, both
receive and transmit are shifted without adjusting the main
tuning.
(4) MONITOR
To monitor transmitted SSB signal quality, turn the
MONITOR switch ON to demodulate and sample a part of
the transmit IF signal.
This feature is useful for checking modulation, or when
adjusting the speech processor.
When monitoring, use a headphone to avoid audio feedback.
NOTE:
If the HEATER switch is OFF or the DRIVE control is in-
correctly adjusted, the ALC circuit will not operate properly,
causing excessively high transmit IF signal level, resulting in
a distorted monitor signal.
(5) CW OPERATION
Tune and load the TS-830S as described in Sections 4.3.
Using shielded line, connect a key to the rear panel KEY jack,
set the MODE switch to CW, and set the stand-by switch to
SEND for transmitting.
CW transmission is automatically monitored through the
transceiver’s speaker. Sidetone audio gain can be adjusted
through the opening in the bottom cover.
Real transmit-receive
frequency ‘
(Displayed in transmission)
Displayed receive
frequency
Beat frequency
800 Hz
Fig. 4-13 CW ZERO-IN
=)
(i) Reception
The TS-830S operates in two different CW modes:
WIDE and NARROW. In the WIDE mode, the SSB filter
(pass bandwidth 2.4 kHz, —6 dB) and an audio filter are
used.
20
In the NARROW mode, option CW filters (YK-88C,
YK-88CN, YG-455C, YG-455CN) are used to narrow
the IF pass bandwidth to 500 Hz (—6 dB) or 250 Hz
along with the audio filter. In both modes, high fre-
quencies are cut off so the receive signal can be heard
without high-frequency noise interference.
@ OPERATION WITHOUT CW FILTER
To receive CW, set the IF SHIFT control to its center position
and the RIT switch to OFF. Adjust the main tuning for about
an 800 Hz beat and your transmit frequency will be tuned
(zeroed) to the transmit frequency of the station you are
receiving. During reception, the side tone is activated by the
key (VOX off). In this case, listen to the side tone super-
imposed on the receive signal and adjust the main tuning for
similar side tone and incoming CW audio tone. By doing so,
transmit frequencies will be zeroed. You may now adjust
the RIT for a pitch which suits your preference. If inter-
ference is encoutered, adjust the IF SHIFT. For more
convenient and effective CW operation, use of the optional
CW filters is recommended.
@ OPERATION WITH CW FILTER (OPTION)
Set the IF SHIFT to its center position and the RIT OFF.
Adjust the main tuning for maximum S-meter deflection.
Receive signal pitch will be about 800 Hz, indicating correct
tuning.
™ KEY CONNECTION (Fig. 4-7)
Your key should be connected as illustrated in Fig. 4-14.
When using an electronic keyer, make sure that polarity is
correct. Use shielded line from the key to transceiver.
NOTE:
When using an electronic keyer, set polarity of the keyer for
NEGATIVE keying.
ANTI VOX ExT SP
Before connecting.
check that polarity is
correct. The KEY jack
provides — 65V.
Fig. 4-14 Key Connection