Kenwood TS-830S User manual

GOO/ANAD
HF TRANSCEIVER
TS-8305
INSTRUCTION MANUAL
KENWOOD CORPORATION
C’PRINTED IN JAPAN B50-8048-30(K, M, T, W)
89/121110987654321 88/12111098

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... ae 9
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...
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
. 14
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 ACCESSORIES
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 Analog Dial Adjustment
6.7. Operation On 220 or 240V AC
6.8 Ordering Spare Parts
6.9 Service
TROUBLESHOOTING
BLOCK DIAGRAM....
SCHEMATIC DIAGRAM
INTERNAL VIEW

TS-830
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[GENERAL]
Frequency Range
Power Requirement
Power Consumption
Dimensions
[TRANSMITTER]
*Final Power Input
Audio Input Impedance
RF Output Impedance...
Frequency Stability
Carrier Suppression
Sideband Suppression..
Spurious Radiation.
Harmonic Radiation ..
Audio Freq. Response ..
3rd Order Intermodulation Distortion.
ALC Input
Linear Amp Relay Contact Rating ...
[RECEIVER]
Receiver Sensitivity
Image Ratio
IF Rejection
Receiver Selectivity
SSB/CW WIDE..
CW NARROW ...
Variable Bandwidth
SSB with 2.4 kHz filter
CW with 500 Hz filter
Notch-filter Attenuation ....
Audio Output Impedance ..
Audio Output ..
S SPECIFICATIONS
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160m Band 1.8 ~ 2.0MHz
80m Band 3.5 ~ 4.0MHz
40m Band 7.0 ~ 7.3MHz
* 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
.. SSB/CW
. 120V AC (220V, 240V modifiable), 50/60 Hz
Transmit: 295 watts
Receive: 32 watts (with heaters off)’
.. 333 (13.3) x 133 (5.3) x 333 (13.3) mm (inch)
. 13.5 kg (29.8 Ibs)
220W PEP for SSB operation
180W DC for CW operation
5002 ~ 50 kQ
.. 502 ~ 750
. Within 1 kHz during the first hour after 1 minute of warmup.
Within 100 Hz during any 30 minute period after warmup.
Better than 40 dB
. Better than 60 dB
Better than 60 dB
Better than 40 dB
400 to 2,600 Hz, within —6 dB
... Better than —36 dB
.. —10V DC MAX
. 100V DC 1A
... 0.25 nV 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)
270 Hz (—6 dB), 1.1 kHz (—60 dB)
500 Hz (—6 dB), 820 Hz (—60 dB)
250 Hz (—6 dB), 500 Hz (—60 dB)
With YK-88CN (option)
With YG-455C (option)
With YG-455CN (option)
500 Hz ~ 2.4 kHz (—6 dB) continuously variable
500 Hz ~ 150 Hz(—6 dB) continuously variable
With optional filter YK-88C and YG-455C added.
.... Better than 40 dB
-8~ 162
. 1,5W (8Q)
*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
your 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 (also called pass-band tuning) 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
local mixer 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.
The TS-830S VFO covers more than 50 kHz above and
below each 500 kHz band. The optional VFO-230
external digital VFO covers about 100 kHz above and
below each band, for MARS and other applications.
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INTRODUCTION AND FEATURES i
3. Self-contained, compact AC Power supply.
4. Advanced circuit design for imporved two-signal char-
acteristics. Cleverly designed 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 feed 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), Market circuit,
side-tone oscillator, selectable AGC (OFF, FAST,
SLOW), RF ATTENUATOR, Fixed crystal oscillator
circuit, Audio frequency characteristics selector circuit
for each mode, CW zero-beat circuit, IF OUT-1 (for
BS-8 Pan Display) and OUT-2 (for RX Display) for
SM-220 Station Monitor, HEATER switch, Screen Grid
switch, and a Built-in speaker.

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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) ...............0. 1
2. Plastic Extension Feet with Screws
(JO2-0049-1:4) wccvsssssucreuseresanivnnays
3. Speaker Plug 1/8” (E12-0001-05)
. 7P DIN Plug (E07-0751-05)
5. Fuse (6A) (FO5-6021-05)..........
= AN
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.
SECTION 2. INSTALLATION
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 and heavy a lead as possible. Use ground
rods or metal cold water feedline.
NOTE:
A ground connection greater than 1/4 away from the
transceiver may be a good DC ground, but NOT an RF
Ground.
@ 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.
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@ 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.
= AC POWER
For fixed station operation, the TS-830S is supplied to
operate from a 120V AC, 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
2-1A.
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 500~50 kQ
microphones. The choice of microphone is important for
good speech quality, and should be given serious considera-
tion. The crystal lattice filter in the transceiver provides all
the restriction necessary on audio response, and further
restriction in the microphone is not required. It is more im-
portant 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 GB. 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. 2-1C. 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 160
impedance. The optional HS-4, HS-5
headphone is best suited for use with
the TS-830S. Stereo-type headpho-
Microphone
Either a low or high impedance
microphone (50022 to 50 k®) 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.
nes can also be used.
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Microphone ) € 3] ;
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Transformer
Microphone |) © 3 g § Switch
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Microphone ° Microphone connector
Antenna
Key External speaker
1) Monitor scope
For CW operation, connect your key SM-220 Besides the built-in
to the KEY jack at the rear. Use Can be used for speaker, an external
shielded cable. RX monitor, pan speaker can also be used.
Lightning display, and TX Connect to the rear EXT
arrestor _ monitor. SP jack using the supplied
plug.
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.
VFO-230
Linear amp
Power supply
Transverter
120V 50/60 Hz
External VFO
Fig. 2-1 TS-830S Connections

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 plus an
external speaker jack on the rear panel. The speaker may be
an 8-ohm permanent-magnet type. 4 inches or larger. The
internal speaker is disconnected when an external speaker is
used. Headphones should also be 4 to 16 ohms im-
pedance. 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.
CAUTION:
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 figura is when the antenna
presents a load close to 50 ohms, but many mobile antennas
will have a base impedance as low as 15 or 20 ohms at their
resonant frequency. In such cases, 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 it
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.

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NOTCH INDICATOR LED ®
VFO INDICATOR LED
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SECTION 3. CONTROLS AND TH
EIR FUCT
ION
Manto
FIX INDICATOR LED
RF ATT INDICATOR LED (R)
DH SWITCH:
ry
28 DIGITAL DISPLAY
ANALOG DIAL SCALE
METER
PROC SWITCH (T
COMP LEVEL CONTROL
NB SWITCH R)
NB LEVEL CONTROL ®)
AGC SWITCH R:
METER SWITCH
STAND-BY SWITCH
VOX GAIN ‘T
VOX DELAY (T)
PHONES JACK ®
MIC CONNECTOR ()
MODE SWITCH
MIC GAIN CONTROL ‘T)
CAR LEVEL CONTROL (T
FIX SWITCH
26) MAIN TUNING
2) LOAD CONTROL @
2 PLATE CONTROL (Tt)
4)
MONI SWITCH (7)
RF ATT SWITCH ®)
-———
2) DRIVE CONTROL
RIT/XIT LED
a) -RIT/XIT CONTROL
32, BAND SWITCH
3) + 0.5 SWITCH
(3) REGAIN ®
3) AF GAIN
3 POWER SWITCH
7) HEATER SWITCH
38 VBT CONTROL ®
39 TONE CONTROL ®
IF SHIFT CONTROL ®)
NOTCH CONTROL ‘R)
«@ NOTCH SWITCH ®
@ XIT SWITCH @®
i RIT SWITCH ®)
Fig. 3-1 Front Panel View

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 ATTENUATOR 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 push switch, 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 adjusts the noise blanker circuit operating level
according to receiving conditions or noise level.
11. AGC SWITCH ®
This controls the AGC (Automatic Gain Control) circuit:
OFF.............. AGC disabled (no AGC).
BAST .cccvics Normally used for CW operation.
SLOW..........
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 METER 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:
REG csc. anes The transceiver is receiving unless the
microphone PTT switch, or the VOX circuit is
activated.
SEND vasecyontint 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 microphone with PTT.
Figure 2-1 shows plug wiring.
18. MODE SWITCH
The mode switch selects type of emission, and TUNE.
TUNE........... 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.)
Frequency is shifted approximately +800Hz
from the USB or CW receive frequency.
This is the actual CW transmit offset. This
feature allows you to Zero-Beat an incoming
CW signal.
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.
(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
CWIW csscvsanas
CWE Nesscccvness :
USB............. Used for upper-sideband operation. Inter-
national Amateur practice dictates the use of
USB on and above the 10 MHz band.
LSB .... . Selects lower-sideband. International
Amateur practice dicates the use of LSB on
and below the 7 MHz band.
10
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.
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
transceivers
operating
frequency.
The
indented
knob
is
convenient
for
quick
tu-
ning.
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 12BY7A
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.
clockwise.
Volume increases
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 the 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 @)
(2 RF METER CONTROL (fT)
@ ANTENNA CONNECTOR - op
@ BIAS CONTROL ©
® GND LUG
® SG SWITCH @®-
|) PREDRILLED HOLES
® KEY JACK @
@ ANTI VOX CONTROL @
(@ SPEAKER JACK ®
Te J
= ne IF OUT 1 ®
() EXTERNAL VFO
CONNECTOR
(@® XVERTER CONNECTOR
(@ REMOTE CONNECTOR
@ AC FUSE
(® AC POWER CABLE
Fig. 3-2 Rear Panel View
3.2 REAR PANEL
1. COOLING FAN 7)
This fan cools the RF amplifier section to insure reliable and
efficient operation.
2. RF METER 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 509 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.
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.
12
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 dispaly use. This is a
wide-band, low-level IF signal to feed an SM-220, BS-8 os-
cilloscope/pan display combination.
12. IF OUT 2 ®
A high-level, narrow-band IF output, taken before the RX
Produce Detector, for scope display of received signal
waveform
(to
feed
an
SM-220,
verticle
input.)
13. EXTERNAL VFO CONNECTOR
This DIN connector is used to interface the KENWOOD
VFO-230 external VFO. The interconnecting cable is
provided with the VFO-230.

PIN FUNCTION PIN FUNCTION
VFO signal
VFO control
2 Relay control Display control
(+ on transmit)
3 +9V Ground
CW freq. shift control +12V
Schematic example
14. X VERTER CONNECTOR
This DIN connector is used to interface a VHF transverter.
PIN FUNCTION PIN FUNCTION
Ground 5 Transverter input
2 Relay control 6 Transverter ALC input
(+ on transmit)
3 Ground Transverter output
4 X-verter ON-OFF 8 HF ANT output
control
XVTR
CONNECTOR
Seen
from
the
cord
6
HF ANT OUTPUT 8 7
\
2
oa as R29 22
(Transmit) + 13.8V
!
}—~«— +9)
2 RX Transverter ALC
IF Unit
Fig. 3-3 XVTR Connector
An
8
Pin
DIN
plug
is
available
as
a
spare
part
EO7-0851-05
NOTE:
S-19 is part of the din chassis connector
15. REMOTE CONNECTOR
This connector is used to interconnect a linear amplifier or
other accessory item. See page 25 for details.
PIN FUNCTION PIN FUNCTION
1 Record output 5 Normally closed
(100 ~ 150 mv AF) (relay contact)
2 Relay common 6 ALC input
terminal ALC threshold level
(NOT grounded) approx. —6V
3 PTT line rf No connection
4 Normally opened
(relay contact)
ACSY CONNECTOR
ALC = L
ST-BY unit
™ IF unit
(REC OUT)
RX
q PRE MIX UNIT __
™
RX
IF unit |
SSeneeeetensetentententan
L18 150s 023 024
>
RAL = 4
| é S IF AMP.
Pal e
= 2
|
Seen from the card
=Ee))e>
Fig. 3-4 Accessory Connector
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.
17. PREDRILLED HOLES
These are provided for owner-installed switches or con-
nectors.
13

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SECTION 4 4. _OPERATION
Setting for reception (A)
Set to desired band
Setting for reception
To antenna
-—tE
OFF Center
Center
OFF
Fully counter- = ; :: 7 RF
clockwise Fully
clockwise
REC AF
Fully
counter-
Seep
cemtion:
clockwise
ey secention OFF OFF (Center OFF
Set to desired MODE] LOFF OFF Center OFF
OFF
OFF
Center
NORMAL
ACi20V
Fig. 4-1 Control and Switch Settings
Setting for transmission (A
Adjust for
max RF
a
Adjust for
Ip dip
OFF ][ Center
Peak
——
Set to desired
BAND
No transmit
possible on
10, 18 or
24.5 MHz
7]
ON]
Microphone
ON
USB or LSB
Use TUNE position
when tuning
Adjust while
transmitting
Setting for transmission (B)
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
Drive Control
Fig. 4-2
(Preselector) Adjustment
(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 (II)”.
14
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. (Fig. 4-2).
(2) WWYV Reception
Set the band switch to “10”
control to 10.0 MHz.
and turn the main tuning
4.2 RECEPTION (II)
This section covers operation of controls and switches to
provide 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 or “Pump” the noise blankes.

(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.
Maximum “S” meter reading of
an incoming signal
AF RF
GaIN~®— GAIN
oy)
fo
o Full
Signals weaker Pointer deflection with Clockwise
are
attenuated.
counterclockwise.
RF
|
Daan
GAIN
than this level —, , RF gain control adjusted position
| F
7 GAIN
yh
|
’
v ay | fy yi 8
counter
clockwise
Fig. 4-3 RF GAIN Control Operation
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. 4-4A.
(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. 4-4A shows the VBT function with an
optional filter.
(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
(II)
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
08 2.4(kHz) 500 (Hz)
(A) USB.LSB mode (B) CW 500 tz filter
Fig. 4-4A VBT Control Positioning
455 kHz filter
Sasso
8.83
MHz
filter
3
2
S
é 3
aot Cc
3 &
a b a
a =
o ao
ao &> 2
D> g
GS? z..
3 FA
gs 4
Es
Ss
Ee
20
SSASAY
bess
NARROW NORMAL NARROW NORMAL.
Fig. 4-4B VBT Selectivity Characteristics
15

(6) IF 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 frequencies 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 a detailed description, refer to Section 4.4. “‘CW"
Operation”.
- Unwanted signal
a g
Desired signal
Desired signal
SS
QQOOY
Unwanted signal eliminated by IF SHIFT
2-) & +20 kHz
BFO
IF
SHIFT—@— NOTCH
IF
SHIFT—@)— NOTCH
es
Fig. 4-5 IF SHIFT Operation
16
(7) VBT AND IF SHIFT IN COMPBINATION
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.
=
IF
SHIFT -—@)— NOTCH
es
NARROW
NORMAL
NARROW NORMAL
Fig. 4-6 IF SHIFT and VBT in Combination
(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.

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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.
NOTE:
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. If you are operating near
other strong signals, use the RF ATT along with the noise
blanker level control.
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 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.
e
(10)TONE CONTROL
Adjust this control to obtain desired tone quality.
4.3 TRANSMISSION (!)
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.
=
i oF ae
SaET@ NOTCH var > 1K
Fig. 4-9 Adjusting final tube bias
ilyd

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 control is a level
adjustment, while the DRIVE control is a resonating
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 on-scale meter deflection.
METER
‘©
669 x)
HF TRANSCEIVER
Fig. 4-10 Peaking the DRIVE control
6. Place the meter switch to IP and dip the PLATE. Dip
will be typically only aout 5ma. (or to RF and peak the
plate.)
Mic-BecaR My Seer cH VETS rove HEATER PoweR
cecan EY Cy Serpe nore var rove
Quickly adjust the PLATE control and
then the LOAD control alternately to
peak (maximum meter deflection) power output.
For maximum.
deflection
HF TRANSCEIVER
Fig. 4-12 Final Tuning
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 contr-| setting if Ip reads
over 265ma. 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 METER control on the rear pa-
nel 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 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 4-1.
Peale oa
HF TRANSCEIVER
i,
Adjusting point
Adjust PLATE control for dip. |
RF
Fig. 4-11 Plate Adjustment py ate aajistmenbrange
Table 4-1. Summary of Transmitter Tuning Procedure
MODE Switch METER Switch
Stand-by Switch
Procedure
USB or LSB IP
TUNE ALC
TUNE IP
TUNE RF
CW RF
REC SEND
REC— SEND
REC SEND
REC SEND
REC— SEND
Adjust BIAS control for 60 ma.
Peak the ALC reading with the DRIVE control.
DIP the PLATE reading with the PLATE control.
PEAK RF Reading with the load 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 9. 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
shown 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.
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
TABLE 4-2. MODE by 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.
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 desir-
able 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 anRF clipper
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.
NOTE:
When a high-output microphone is used, input overload and
distortion will result. To prevent this, use an attenuator in
the microphone circuit as shown below, or connect a 10 —
33 kQ resistor (depending on microphone used) across the
microphone input. (“Normal mic control setting should be
approximately 12 O'clock).
10k — 33 k®2 (depending on microphone used.)
from microphone to the MIC connecter
10kQ
The MC-50 microphone is recommended (Microphone
sensitivity; —55 +3 dB for approx. 5 cm distance to the
mic.)
(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 sample and demodulate 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 (fig. 4-13)
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
Displayed receive frequency
frequency (Displayed in transmission)
hod
sail as
Beat frequency
800 Hz
Fig. 4-13 CW ZERO-Beat
tL fe)
(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) may be used to nar-
row the IF pass bandwidth to 500 Hz (—6 dB) or 250
Hz along with the audio filter. In both modes, high
frequencies are cut so the received signal willbe more
easily copied.
B@ OPERATION WITHOUT CW FILTERS
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. If the O beat cannot be obtained easily, adjust the
IF shift knob, then return the mode switch to CW. The
transmit frequency of the unit is adjusted to that of the mate
station. You may now adjust the RIT for a pitch which suits
your preference. If interference is encountered, adjust the IF
SHIFT. For more convenient and effective CW operation,
use of the optional CW filters is recommended.
@ OPERATION WITH CW FILTERS (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. 4.14)
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 GND
Oo oO
IF OUT
Before connecting,
check that polarity is
correct. The KEY jack
provides — 65V.
Fig. 4-14 Key Connection