Kenwood TS-850S User Manual

HF TRANSCEIVER

TS-850S

INSTRUCTION MANUAL

KENWOOD CORPORATION

©PRINTED IN JAPAN B62-0061-10(K, X)(T) 92/12 1110 987654321 91/12 1110 9 8 7 6 5

Thank you for purchasing this new transceiver.

IMPORTANT Please read this Instruction Manual carefully before placing the transceiver in service.

SAVE THIS INSTRUCTION MANUAL The following explicit definitions apply in this manual:

Note ; If disregarded, inconvenience only, no

risk of equipment damage or personal injury.

Caution : Equipment damage may occur, but not

personal injury.

This Instruction Manual covers the TS-850S, with and without AT (Automatic Antenna Tuner) unit. When there are differences in operation, separate

instructions will be given for each model.

Illustrations show the TS-850S with AT unit.

Notice to the user: One or more of the following statements may be applicable to this equipment.

FCC WARNING This equipment generates or uses radio frequency energy. Changes or modifications to this equipment may cause harmful interference unless the modifications are expressly approved in the

instruction manual. The user could lose the

authority to operate this equipment if an

unauthorized change or modification is made.

Information to the digital device user required by the FCC: This equipment has been tested and found to comply with the limits for a Class B digital device,

pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential

installation. This equipment generates, uses and

can generate radio frequency energy and, if not

installed and used in accordance with the

instructions, may cause harmful interference to

radio communications. However, there is no

guarantee that the interference will not occur in a

particular installation. If this equipment does cause

harmful interference to radio or television

reception, which can be determined by turning the

equipment off and on, the user is encouraged to

try to correct the interference by one or more of

the following measures:

Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer for technical assistance.

_____

CONTENTS

1. BEFORE OPERATION

2. SPECIFICATIONS AND ACCESSORIES 2-1. SPECIFICATIONS

2- 2. ACCESSORIES ..........................................6

3. INSTALLATION AND CONNECTION..................7

3- 1. INSTALLATION 3- 2. CONNECTION

4. OPERATION .....................................................10

4- 1. OPERATING CONTROLS .......................10

4-2. INITIAL SETTING ........................................19

4-3. SSB OPERATION 4-4. CW OPERATION

4-5. FM OPERATION ..........................................25

4-6. AM OPERATION ..........................................26

4-7. FSK OPERATION 4-8. PACKET (AFSK) OPERATION 4-9. AUTO ANTENNA TUNER OPERATION

4-10. OTHER OPERATION ................................31

4-11. MEMORY 4-12. SCAN 4-13. DRS FUNCTION

4-14. REPEATER OPERATION ..........................45

4-15. OPERATION WITH A PERSONAL

COMPUTER 4-16. VOICE SYNTHESIZER 4-17. DIGITAL MODULATION FUNCTION 4-18. Transfer function when two TS-850S

transceivers are connected together 4-19. When used as the master machine for the

transverter .................................................49

4- 20. Remote control function..........................51

5. CIRCUIT DESCRIPTION 5- 1. BLOCK DIAGRAM 5- 2. CIRCUIT DIAGRAM

6. MAINTENANCE AND ADJUSTMENTS.............62

6- 1. GENERAL INFORMATION

6-2. SERVICE ......................................................62

6-3. CLEANING ...................................................62

6-4. IN CASE OF DIFFICULTY

6-5. ORDERING SPARE PARTS.........................64

6- 6. ADJUSTMENTS

7. OPTIONAL ACCESSORIES

7- 1. FILTER INSTALLATION ...........................67

7-2. VS-2 VOICE SYNTHESIZER

INSTALLATION

7-3. DRU-2 DIGITAL RECORDING UNIT

INSTALLATION 7-4. SO-2 TCXO UNIT INSTALLATION 7-5. DSP-100 DIGITAL SIGNAL PROCESSOR

CONNECTION ............................................69

7-6. TL-922/922A LINEAR AMPLIFIER

CONNECTION ............................................69

7-7. SM-230 STATION MONITOR

INSTALLATION 7-8. AT-850 AUTOMATIC ANTENNA TUNER

UNIT INSTALLATION .................................70

7-9. AT-300 AUTOMATIC ANTENNA TUNER

CONNECTION ............................................70

7-10. OTHER ACCESSORIES ...........................71

8. REFERENCE

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20 22

27 28

37 43

46 46 46

52 52 53

63 64

67 68

3 4 4

7 7

BEFORE OPERATION

TO PREVENT ELECTRIC SHOCK, FIRE AND OTHER INJURY. PLEASE NOTE THE

FOLLOWING:

V - !

Do not place this unit, where it will be exposed to direct sunlight or close to heating appliances.

To ensure good ventilation, do not put anything on top of the cabinet and allow at least 15 cm (6 inches) of space behind the unit.

Do not drop pieces of metal, needles, coins and other electrically conductive materials into the unit.

1. Turn the power off, before cleaning the unit.

2. Do not use any type of abrasive pad, thinner, benzine or any substances which may damage the unit.

3. Wipe the front panel and other exterior surfaces of the unit with a soft dry cloth or a soft cloth lightly moistened with water.

Do not place the unit in areas of excessive dust, high humidity or on unstable surfaces.

v'-X

To avoid risk of electric shock, under no circumstances should the unit be opened:

2. SPECIFICATIONS AND ACCESSORIES

2-1. SPECIFICATIONS

Specifications

----

Model

TS-850S

CT3

Unwanted sideband suppression (with 1.5kHz reference)

Maximum frequency deviation (FM)

Frequency response (—6dB)

I-

Ai 1 vanaoie range

10 Hz step

20 Hz step

Less than ±5kHz

More than ±1.2kHz

More than ±2.4kHz Microphone impedance 600n Circuitry Frequency range Intermediate frequency

SSB, CW, FSK (at lOdB S

100kHz~500kHz

500kHz~1.62MHz*

*1.62MHz~24.5MHz

Triple conversion superheterodyne

100kHz to 30MHz

1st; 73.05MHz, 2nd : 8.83MHz, 3rd : 455kHz

Less than 0.2 //V

Less than 0.2 pc\/

+ N/N)

Sensitivity

24.5MHz~30MHz 100kHz~500kHz Less than 2 //V

500kHz~1.62MHz* Less than 32 /^V

Less than 0.13 //V

(at lOdB S

+ N/N)

*1.62MHz~24.5MHz

More than 40dB

400 to 2600Hz

Less than 4 //V

Less than 2

■(D

Selectivity

Image ratio 1st IF rejection

Notch filter attenuation

HM vanaoie range

Squelch

sensitivity

Output

(at12dBSINAD)

SSB, CW, FSK, AM

24.5MHz~30MHz Less than 1.3//V

28MHz~30MHz

SSB, CW, FSK

Less than 0.25 //V

-6dB:2.4kHz, -60dB:3.8kHz

-6dB:6kHz, -60dB;15kHz

FM -6dB:12kHz, -60dB:24kHz

More than 80dB

More than 80dB More than 40dB

10 Hz step

20 Hz step

100kHz~500kHz

500kHz~1.62MHz*

♦1.62MHz~30MHz

28MHz~30MHz

More than ±1.2kHz More than ± 2.4kHz

Less than 2 //V

Less than 20 /uV

Less than 2 ;c^V

Less than 0.25 //V

1.5W across 8 ohms load (10% distortion)

Output load impedance

8 ohms

Notes

1. Circuit and ratings are subject to change without notice due to advancements in technology.

2. Remember to keep the transmit output power within the power limitations of your license.

3. *: The U.S.A. version is 1.705 MHz.

4. **: With auto antenna tuner in “THRU” or bypass position.

2-2. ACCESSORIES

Unpack your TS-850S carefully and confirm that it is supplied with the following accessories.

Dynamic microphone

DIN plug (7-pin) ................................................................E07-0751-05

DIN plug (13-pin) ..............................................................E07-1351-05

DC power cable assembly Calibration cable Fuse (25A) Fuse (3A) External control Instruction Manual

Instruction Manual ................................................................B62-0061-XX ...........................1 copy

Warranty card (U.S.A., Canada and Europe version only) ........................................................1 ea.

After unpacking Shipping container: Save the boxes and packing in the event your unit needs to be transported for remote operation, maintenance, or service.

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T91-0352-15

E30-3035-05 ................................1 ea.

E31-2154-05 F51-0011-05

F06-3026-05 ................................1 ea.

B62-0065-XX ...........................1 copy

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...............................

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1 ea. lea. 1 ea.

lea. lea.

3. INSTALLATION AND CONNECTION

3-1. INSTALLATION

■FRONT FEET By extending the front feet, the front panel can be elevated for operating convenience. Turn the front foot left and pull down. Then turn right to lock.

3-2. CONNECTION

The TS-850S requires more than 20.5 A at 13.8 VDC when transmitting at full power. Use the PS-52 power supply for fixed station operation.

A. Rear Panel

(1) Antenna (4) Key connection

Caution

Protect your equipment — Use a LIGHTNING

ARRESTER.

The type of antenna that is used will greatly affect

the performance of the transceiver. Use a properly adjusted antenna, of good quality, to enable your transceiver to perform at its best. The antenna input impedance is 50 ohms. Use 50-ohm coaxial cable such as 5D-2V or RG-213/U (RG-8A/U) for this connection. If the antenna is far from the transceiver the use of low loss coaxial cable, such as 5D-2V or

RG-213/U (RG-8A/U) are recommended. Match the

impedance of the coaxial cable and that of the antenna so that the SWR is less than 1.5 to 1. The protection circuit in the transceiver will activate if the SWR is particularly poor (greater than 3 to 1). High SWR value will cause transmitter output to drop, and may lead to TVI or BCI reports.

(2) Grounding

Caution Never use a gas pipe or electrical conduit pipe.

Notes

1. A ground connection that is a 1/4 wavelength or its multiple may provide a good DC ground, but it will not provide a good RF ground.

2. A city water pipe cannot be used as a good earth in some cases.

Your key should be connected as illustrated in the

figure below. When using an electronic keyer, make

sure that polarity is set for positive. Always use shielded line from the key to transceiver, (diameter

6.0 mm) |To use external straight key

+5V, Contact Current about 1 mA

Ground Not used +

Ground +

Note Check the polarity of the plug when you use an electronic keyer. Please refer to Section 4-4.

-I-5V, Contact

Current about 1 mA

Making a good earth connection is important for preventing dangers such as electric shock and for emitting a high quality signal with minimum spurious radiation. Bury a commercially available ground rod or copper plate under the ground and connect it to the GND terminal. A thick wire, cut as short as

possible, should be used for the connection. To make a good earth connection, connect the GND

terminal to a grounded metal water pipe. (3) External speaker

The TS-850S includes a built-in speaker. If you would like to use an external speaker, such as the SP-31, it may be connected to the EXT SP jack on the rear of the transceiver. The speaker may be any good 8 ohm permanent magnet type speaker. The diameter should be at least 4 inches for good audio quality. If you plan on using a speaker other than the SP-31 it should be equipped with a miniature phone jack plug, (diameter 3.5 mm)

B. Front Panel

(1) Headphones Any low-impedance (4-16 ohms) headphone may be

used with the transceiver. Connect the headphones to the front panel PHONES jack, (diameter 6.0 mm). The optional HS-5 or HS-6 headphones are best suited for use with the transceiver. Stereo type

headphones can also be used.

(2) Microphones Any microphone with an impedance to 6000 may be

used with this transceiver. The KENWOOD microphones MC-43S (handheld), MC-60A, MC-80,

MC-85 (table-top type) are recom-mended.

4. OPERATION

4-1. OPERATING CONTROLS 4-1-1. Front Panel

P.10

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P.11

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Note All segments on the Display Panel and Indicators are shown on for this explanation.

P.12

NOTCH SQL NB LEVEL •

i .H. -a a a.H.

P.14

@ DIM (Dimmer) switch

Selects the intensity of both the digital display and the meter illumination, bright or dim.

©VOX/MAN switch VOX (Voice Operated Switch) operation is possible

in SSB, AM or FM operations. Break-in operation is possible in CW operation. To activate the VOX

circuitry place the VOX switch ON(a).

0FULL/SEMI (Break-in) switch This switch affects the transmit/receive recovery

time. In the SEMI position the transceiver will key when the key is depressed and remain in the transmit position until a preset delay has been reached. In the FULL position the transceiver will return to receive as soon as the key is released, thus allowing you to copy incoming signals between characters.

® AlP (Advanced Intercept Point) switch

Use AlP when good signal reception can not be

obtained. When switched on, it reduces interference from strong signals. When the frequency falls below 9.5 MHz,

initialization takes place automatically.

____________

Note

When AlP is on, the sensitivity of the receiver is

reduced about 10 dB.

©HIGH BOOST switch

The high-frequencies of the transmit audio signal are

emphasized. Intelligibility may be improved,

depending on the characteristics of the microphone

and atmospheric conditions.

@ Meter

During receive the meter is used as an S-meter. During transmit the meter is used as a POWER meter, and is controlled by the METER key, and provides either VSWR, COMP level or ALC level readings.

The meter can be used as a peak hold meter.

Please refer to Section 4-10-15.)

________________

Note One or two segments of the S meter may light when there is no signal, due to atmospheric noise.

The • display indicates the Memory Channel currently in the display will be skipped during

Memory Channel scan.

(§)ON AIR indicator

Lights during transmit.

(@ AT TUNE (Antenna Tuner) indicator

Lights to show that the automatic antenna tuner is in operation. Do not attempt to operate further until it goes off.

(8) Filter indicators

Indicates which filters have been selected.

(9) M.CH (Memory channel) display

Turns ON during a Memory Channel operation.

PRO (Program) display

Lights during selection or operation on memory channels 90 to 99.

SCAN display

Turns ON during scanning.

M.SCR (Memory scroll) display

Lights when the M.IN key is pressed. When the memory scroll function is active you can review the contents of the memory channels without a loss of the incoming receive frequency.

PITCH display

Lights when the PITCH function is ON.

SPLIT display

Turns ON during split operation.

F.LOCK display

Lights when the F.LOCK key is ON.

RIT display

Turns ON when using RIT.

XIT display

Turns ON when using XIT.

(10) Frequency display

Indicates the operating frequency. The 10 Hz digit may be suppressed. (Please refer to Section 4-10-

15.) (i])Memory Channel number display

Memory Channel Number is displayed.

(g) AIP(Advanced Intercept Point) indicator Lights when the AlP switch is ON.

(@MHz indicator Lights when the 1 MHz key is ON.

(17) NOTCH indicator

Lights when the NOTCH switch is ON. (i|) LSB indicator

Indicates the LSB has been selected.

USB indicator

Indicates the USB has been selected.

CW indicator

Indicates the CW has been selected.

CW-R indicator

Indicates the CW-R(Reverse) has been selected.

FSK indicator

Indicates the FSK has been selected.

FSK-R indicator

Indicates the FSK-R(Reverse) has been selected.

FM indicator

Indicates the FM has been selected.

FM-N indicator

Indicates the FM-N(narrow) has been selected.

AM indicator

Indicates the AM has been selected.

TUNE indicator

Indicates the TUNE has been selected.

FINE indicator

Indicates the FINE tuning has been selected.

TONE indicator

Indicates the TONE function has been selected.

(i|) RIT/XIT frequency display

Shows the amount of RIT/XIT offset to the nearest 10 Hz. Minus “ —” appears in the display when the RIT / XIT offset is below the transmit / receive frequency. Shows the scan speed during scanning.

@ NOTCH control

The NOTCH function is used to reduce or eliminate

heterodyne, or CW type signals. The NOTCH filter

will not be effective against SSB, AM or FM type

signals.

Note This switch is disabled during FM operation.

@NB 1 switch For pulse type noise, such as generated by automotive ignition systems, turn the NB 1 switch ON. This switch will not help to eliminate atmospheric or

line noises, only pulse type noise.

(^ NB 2 switch

Noise blanker 2 is used for long duration pulse noise, like the “woodpecker”. To reduce “woodpecker” radar noise interference, set switch NB 2 to the ON position (NB 2’s effectiveness depends on the specific type of interference). If you use NB 2 for short duration pulse noise, the receive signal may become distorted, making it difficult to hear. Unfortunately no noise blanker can remove all different types of interference; but the two noise blankers that have been provided in the TS-850 are effective in most cases. If there is no “woodpecker” present, the switch should be in the OFF position.

@ SQL (Squelch) control This control is used to eliminate atmospheric noise,

and receiver static noise during no signal periods. Slowly rotate the control clockwise to the point where the ambient noise just disappears, and the speaker shuts off. This point is known as the squelch threshold point. Now you will only hear output from the speaker when an incoming signal is present. For weak signal reception this control should be fully counterclockwise.

@ NB LEVEL control Controls the noise blanker operating level. Use only the minimum level necessary.

(§) NB2 WIDTH control This control varies the width of the blanking pulse of

NB2.

Notes

1. The NB2 control only works on woodpecker type noise.

2. If the control is turned too far, the received

signal may be distorted. Set the control for the best receive signal.

(24) RIT switch Press to turn the RIT ON or OFF.

@XIT switch Press to turn the XIT ON or OFF.

® @ ® 0

(§) REC/SEND switch

This switch is used when you want to manually control transmit or receive.

REC : Places the transceiver into receive.

SEND : Places the transceiver into transmit. (§)THRU/AUTO switch

THRU : The auto antenna tuner is not used in

transmit.

AUTO: The auto antenna tuner is used in transmit.

(§) NOTCH switch

When this switch is ON, the notch filter is activated.

0 AT TUNE switch

When this switch is tuned ON and the THRU/AUTO switch is placed in the AUTO position, the automatic

tuner will be engaged and the tuner will try to match the antenna.

©PHONES jack Output terminal for headphones.

©MIC jack Microphone connection.

GND (MIC)

<D NC

Effective transmit power output will increase when

the PROC switch is turned ON during SSB mode

operations.

Adjust the PROC control while speaking into the microphone in a normal tone of voice, for a peak COMP scale reading of no more than 10 dB. Do not overdrive the COMPRESSOR. Over driving the compressor will deteriorate voice quality, increase transmitter noise level, and in general make copying your signal more difficult.

8 V/approx. 10 mA

MIC connector (Front view)

©AGO switch This switch selects the operating time constant of the AGO (Automatic Gain Control) circuit. When the AGC switch is set to SLOW, the receiver gain and

S-meter readings will react slowly to large input changes, and when set to FAST, the receiver gain and S-meter will react quickly to changes in the input signal level.

The normal position when using all modes is the

SLOW position. When working any of the following you might wish to use the FAST position.

• When tuning rapidly, use the FAST position.

• When receiving weak signals.

• When a high-speed CW signal is being received. Note

This switch is disabled during FM operation.

©MONI (Monitor) control This controls the volume of the transmit monitor. This control is operational in the SSB and FSK mode.

® MONI (Monitor) switch Allows monitoring of your transmit signal. This control is operational in the SSB and FSK mode.

® MIC gain control Microphone gain can be adjusted during SSB and AM operations. Gain is increased by turning the control clockwise.

Power can be controlled in all modes. Power is increased by turning the control clockwise. Keep the transmit power within the output power limits of your license.

©CAR (Carrier level) control

Used to adjust carrier level during CW, AM and FSK.

approximately 6 dB when this switch is activated.

The incoming receive signal level is attenuated by approximately 12 dB when this switch is activated.

The incoming receive signal level is attenuated by approximately 18 dB when both the 6 dB switch and 12 dB switch are activated.

This control is also useful when a strong signal is

near your desired signal; while some loss will occur to the desired signal, as well as the undesired signal, the use of the attenuator will sometimes allow you to

understand what is being received. For normal

receiver performance, this switch should be in the

OFF position.

METER I I 8. ^3

I I

® METER key The meter function can be changed as follows during transmission.

r*“ SWR---------► ALC

------

► COMP

(The PROC switch is ON when the SSB mode.)

■No in(dicator<-

SWR : Indicates voltage standing wave ratio

(VSWR).

ALC : Indicates internal ALC voltage, or the ALC

voltage fed back from a linear amplifier connected to this transceiver.

COMP: Indicates compression level during speech

processor operations. Do not exceed 10 dB of compression. The PROC switch is ON when the SSB mode.

(§)8.83 FILTER key

Selects the desired 8.83MHz filter regardless of mode.

@455 FILTER key

Selects the desired 455kHz filter regardless of mode.

@ Numeric keypad

Consists of a series of switches which will be used to set, turn on and/or turn off functions. When used in conjunction with the ENT key, the keypad is used to directly enter a frequency. When used in conjunction with the M.IN key, the keypad is used to enter data into a memory channel. PLAY, REC key

Used to record and play voice or CW messages for transmission. (The optional DRU-2 digital recording unit is required.)

TUNE key

Sets the transmit power to half the rated power regardless of the position of the PWR control. Outputs a zero beat in CW receive mode. This key is useful when tuning a linear amplifier.

FINE key

Makes one turn of the tuning knob equal 1 kHz (1 Hz step) to facilitate precise tuning. When the key is pressed again, normal tuning returns.

REV key

The BFO uses USB for normal CW reception. With this key, reception becomes possible on LSB. The BFO uses LSB for normal FSK operation. With this key, reception becomes possible on USB. By pressing this key, reverse shift is also used for transmission.

PITCH key

Press to turn the PITCH function ON or OFF.

@ CLR (Clear) key

Used when reentering memory channel data, erasing a memory channel, clearing scan, or when specifying the channels that will be skipped during scan operations.

@ M.IN key

Used to enter data into a memory channel.

@M^VFO key Used to transfer

a frequency from memory to the

VFO.

(§)SCAN key

Pressing during VFO operation will initiate program

scan, and pressing during memory operation will

initiate memory scan.

These keys are used to select the desired mode of operation. When a MODE key is pressed the first character of that mode will be sounded in Morse code thru the internal speaker.

LSB/USB key

Press the LSB/USB key to alternate between LSB and USB mode.

CW/FSK key

Press the CW/FSK key to alternate between CW (R) and FSK(R) mode.

FM/AM key

Press the FM/AM key to alternate between FM(N) and AM mode.

(§) TUNING knob (VFO)

Rotate the knob to select the desired frequency. Fast tuning is possible by rotating the knob rapidly.

The dial drag is adjustable by holding the outside

knob and turning the inside knob clockwise to increase drag, and counterclockwise to decrease drag.

(50) ENT (Enter) key Used to directly enter a frequency from the numeric keypad.

TF-SET key

Depressing this key will allow you to rapidly set or check the transmit frequency, during SPLIT operations, without the need of actually transmitting.

A = B key

Equalizes the frequencies, modes and filter selection of VFO A and VFO B.

A (VFO A) key

RX ; Press this key to receive signals on VFO A. TX : Press this key to transmit signals on VFO A.

B (VFO B) key

RX ; Press this key to receive signals on VFO B. TX : Press this key to transmit signals on VFO B.

M.CH (Memory Channel) key

RX: Press this key to receive signals on the

memory channel.

TX: Press this key to transmit signals on the

memory channel.

Note

When just an RX key (VFO A, VFO B, or M.CH.) is

pressed, the same VFO or memory channel is

used for both reception and transmission. For split operation, select VFO A or VFO B for reception, and, for transmission, either select the other VFO or select TX M.CH.

1MHz key

This key is used to determine if the UP/DOWN

switches will function in 1 MHz steps or only

thru the amateur bands. When the 1 MHz step

position is selected, the MHz indicator will light.

F.LOCK key

The selected dial frequency and mode are

locked.

_________________________________

Note When the F.LOCK key is on the TF-SET, FILTER, METER, VOICE keys, AlP, RIT, XIT switches and RIT/XIT control are still active.

(g)QUICK MEMO M.IN key This key writes data to the quick memory.

(§) VOICE key

Press this key to activate the optional voice synthesizer unit VS-2.

(§) UP/DOWN switch Pressing the UP switch increases the frequency, and pressing the DOWN switch decreases it. When the function setting at power on is on, this switch changes the setting.

RlT/XIT —TONE

(g) RIT/XIT control

RIT (Receiver Incremental Tuning)

The RIT control allows shifting the receiver frequency. Use of the RIT control will not affect

the transmit frequency. When the RIT switch is ON, the RIT indicator will light, and the receive frequency can be adjusted by using the RIT control.

Note When the RIT is ON the transmit frequency may be different from the receive frequency. For normal operation leave the RIT switch OFF. It should be used only when necessary.

The scan speed can be changed during scanning with the RIT control.

XIT (Transmitter Incremental Tuning)

XIT is very similar to RIT. XIT is only active in the transmit mode. By using the XIT function it is possible to offset the transmit frequency without the normal loss of receiver audio that is experienced when using the SPLIT function. The RIT / XIT offset can be preset, without affecting the actual operating frequency by turning OFF the RIT/XIT and using the RIT/XIT display to determine the offset. This is useful when working a DX station who is “split” within the XIT range.

The RIT / XIT step size is either 10 Hz or 20 Hz.

Please refer to Section 4-10-15 for information on how to select the desired step size.

@QUICKMEMOMRkey

This key recalls the quick memory.

@TONE control

Turn the control to increase or decrease the receiver audio tone.

The standard position is with the control turned fully clockwise. As the control is turned counterclockwise,

high frequencies are cut.

(§)M.CH/VFO CH control

This control is used to select the desired memory channel during Memory Channel Operation. This control is also used to change the frequency in 10 kHz steps during VFO operations. The control is also used to select the desired power on function you wish to change. See section 4-10-

15. (g)AF gain control

Turn the knob to increase or decrease the volume.

Clockwise rotation increases the volume and counterclockwise rotation decreases the volume.

Note The output level of the “Beep” and “Sidetone” are not affected by adjusting of the AF gain control.

(§)RF gain control

This control adjusts the gain of the receiver highfrequency amplifier section. For normal receiver performance, and maximum gain, this control should be all the way to the right. If you are having trouble copying the desired signal make a note of the stations peak S-meter reading. Then, adjust the RF gain control left, so that the meter needle is stationary at this level. Now, all signals that were less than the desired signal will be attenuated, such as static noise, etc., making

reception easier.

If the incoming signal pegs the S-meter you can also reduce the receiver gain by moving the RF gain control to the left. The S-meter pointer will always advance up-scale as the RF gain control is moved, to indicate that the gain has been reduced.

(g) SLOPE TUNE LOW CUT control Adjust the LOW CUT control clockwise, and interference from signals lower than the operating frequency will be reduced. As with the HIGH CUT control, use of the LOW CUT control will also affect the audio frequency passband. In this case the low frequency components of the audio signal will be reduced.

Note This control is disabled during FM operation.

IMicrophone

©(2)UP/DWN(Up/Down) switches

These switches are used to step the VFO frequency

or memory channel up and down. The frequency will change continuously if the switches are pressed and held.

(3)PTT (Push To Talk) switch The transceiver will be placed whenever this switch is pressed.

into Transmit

Simultaneous use of the RF gain control and AGC switch

If a strong signal (such as a local station) appears in the vicinity of the intended receive signal, the S-

meter may show unusual deflection due to the AGC voltage developed from the strong disturbing signal.

If this occurs, move the RF gain control to the left so

the meter pointer remains at about the original

deflection peak and turn the AGC switch to the

FAST position. This will reduce the unwanted AGC

voltage and permit clear reception.

Note

This control is disabled during FM operation.

(§)SLOPE TUNE HIGH CUT control

Adjust the HIGH CUT control counterclockwise, and

interference from signals higher than the operating frequency will be reduced. The high-frequency components of the resulting receiver audio will also be reduced.

Note This control is disabled during FM operation.

4-1-2. Rear Panel

©GND (Ground) terminal

To prevent electric shock, as well as RFI and BCl, connect the transceiver to a good earth ground.

(D ANT (Antenna) connector

This connector should be attached to a suitable antenna for transmitting and receiving. The antenna cable should be 50-ohm coax, terminated with a PL259 connector.

©FUSE Power fuse for the ACC 4 connector.

@ DC power connector This is used to connect the DC power supply.

The optional AT-300 may be connected here.

©ACC 1 connector

The optional DSP-100 or the optional IF-232C is connected here.

For connection to an RTTY interface unit, (direct FSK keying) The terminal is equipped the short pin plug for the factory.

©DSP 1 terminal The optional DSP-100 is connected here.

©ACC 3 terminal This is used to connect the remote controller.

® SW1 switch

This transceiver has a cover on the back to protect against misoperation. To connect the external antenna tuner to this unit, remove the cover and slide switch SW1 to EXT. The built-in antenna tuner will then not operate.

Activates the internal keying relay for linear amplifier control.

This connector is used when a linear amplifier is

used.

Control relay p

Speaker output

ALC input

GND'

From standby switch (PTT circuit for foot switch)

+ 12 VDC ON transmit

max. 10 mA

Internal wiring

View from cord

7. ^ 6

aaa—w-

® DSP 2 terminal The optional DSP-100 is connected here.

The optional DSP-100 is connected here.

This terminal is for the band scope of the station

monitor. IF 1 is for connection to the SM-230 for Pan Display.

(8.83 MHz)

0|) ACC 2 connector Terminal numbers and their applications are as

follows :

ACC2 pin assignments

Pin number

Symbol

Use

0©0

.0 0©©;

13-pin DIN plug (E07-1351-05)

ACC2 pin assignments

Pin number

1 NO

2 3

Symbol Use

ANO

GND Grounding (The shielded wire

View from the

nrmrrmwy.

No connection No connection

The receiver audio at a fixed level independent of AF gain control setting. Output voltage : 300 mV / 4.7ki2 or

more at high input level

of the audio output terminal

is connected here.)

rear panel.

13 SS Standby terminal.

® EXT SP (External speaker) jack

This jack is for connection of an external speaker.

® ANTI control

VOX operations are sometimes difficult with high

speaker volume control settings. The ANTI control is used to reduce the tendency of the VOX to activate

from inputs from the speaker. The ANTI control is

not active when headphones are connected.

(19) GAIN control

This control adjusts the sensitivity of VOX amplifier. Adjust this control for your personal preference.

(§) DELAY control

This control adjusts how long the transceiver will remain keyed after voice input has stopped.

PKD

GND

This is the MIC (microphone)

input pin from the terminal unit. The input level is approximately 20 mV.

Grounding (The shielded wire of the audio output terminal

is connected here.)

Grounding transmits.

8 9

PSQ

Output voltage pin for S-meter.

NO No connection

GND

PKS

This pin is used for

connecting a TNG (Terminal Node Controller) for use with packet radio. It is the Squelch Control terminal and will not allow packet communications while squelch is off.

Output voltage varies with Smeter indication.

Grounding This is the standby pin used

exclusively for the terminal

unit. When this pin is in use

for standby, the microphone

input is automatically shut off and the transmit is operational.

(g) ELECTRONIC KEY switch Turns the electronic keyer on or off. Turn the switch off when CW is initiated by a straight key or when using an external electronic keyer.

@ CW KEY jack

Using shielded line, connect a 6.0mm diameter phone plug to this jack for CW operation. Connect a paddle type key to the key jack use a 6.0mm diameter stereo plug. Open-terminal voltage is approximately 5 VDC. (See Section 4-4 for additional key information.)

No connection

4-2. INITIAL SETTING

Prior to operation ensure the following switches and controls are set as indicated in the figure below:

pT| Ensure the POWER switch is OFF. [Y] An antenna must be connected.

Caution Never transmit without the antenna connected.

3 A ground must be connected.

[4] The DC power cable is connected.

Ensure the front panel controls and switches are set as shown in the figures above.

4-3. SSB OPERATION

ATT switch This switch allows attenuation of the input signal by 6, 12 or 18 dB.

METER key Used to select meter function in

AlP switch When switched on, it reduces interference from strong signals.

VOX/MAN switch Used to operate VOX.

THRU/AUTO switch THRU: Antenna tuner is off. AUTO: Antenna tuner is on.

AGO switch Set to SLOW.

PROC switch/control Used to actuate the speech processor circuit.

PWR control Power can be controlled in all modes.

HIGH BOOST switch The high-frequencies of the transmit audio signal are emphasized.

MONI switch/control Allows monitoring of your transmit signal.

MIC gain control Microphone gain can be adjusted during operation.

FILTER key Changes the selectivity.

(RECEIVING)

pT| Turn on the DC power supply and then turn the transceiver’s power switch ON. |~2] A frequency is shown in the display.

3~| Press the UP/DOWN switches to select the desired frequency band.

When the 1 MHz step position is selected, the MHz indicator will light.

[~4~| Select USB or LSB with the MODE key.

The automatic switchover point on the transceiver is 9.5 MHz. Turn the AF gain control clockwise until a signal or noise is heard.

Q Rotate the TUNING knob and select an open channel.

the desired

transmit.

MODE key Press the LSB/USB key to alternate between LSB and USB.

RIT/XIT switch/control SQL(Squelch) control

FINE key Makes one turn of the tuning knob equal 1 kHz (1 Hz step) to facilitate tuning.

TUNE key

Reduces output power for linear amplifier adjustment.

NOTCH switch/control

RF gain control This control should be all the way to the right.

TONE control Turn the control to increase or decrease the tone.

SLOPE TUNE control

M.CH/VFO CH control This control is also used to select the desired memory channel during Memory Channel Operation. This control is used to change the frequency in 10 kHz steps during VFO operations.

NB switch/control NB 1 : For pulse type noise,

such as generated by au tomotive ignition systems.

NB 2 : Noise blanker 2 is used

for long duration pulse

noise, like the “wood pecker”.

(TRANSMISSION)

D Connect a microphone to the MIC jack.

Q Turn on the DC power supply and then turn the transceiver’s power switch ON. Q A frequency is shown in the display. Qj Select USB or LSB with the MODE key.

The automatic switchover point on the transceiver is 9.5 MHz.

Q Enter the desired frequency.

Before transmitting check the frequency for activity so that you do not interrupt another QSO. Q Press the METER key until the ALC meter lights. Q Press the microphone PTT switch, or set the REC/SEND switch to SEND. Q Speak into the microphone and adjust the MIC gain control so that the meter deflection does not exceed the ALC

zone on voice peaks.

Note Speak into the microphone, holding the microphone about 5 cm away from your mouth. Close talking or talking too loudly may reduce transmission clarity or spread the side bands too much.

—I I I I I

------------

1 3 S T 9 20 40 «006

QOODDQGDDOaOQQDQOOQDOOOOOOOOOO

0 II £1 II Ul 111 V

■ t 1 1 I 1

$WR ooooooaoaooooooQoooooooooooooo

1.1 210

)f- ALC zone -?|

1—T

------

4-3-1. SSB AUTO mode shift

This transceiver automatically selects the appropriate sideband when in the SSB mode.

30kHz 9.5MHz 30MHz

LSB

Notes

1. USB is selected for 9.5 MHz and above.

2. The AUTO mode selection will not function when using RIT.

USB

4-3-2. Speech Processor

The Speech Processor is used when signals from your station are weak at the distant station.

During SSB operation (especially DX operations), it may be desirable to increase the relative “talk-power” of the transmitter by using the speech processor circuitry. This may make the difference between a marginal, and a copyable signal.

•Operation Turn the PROC switch ON and place the METER switch to COMP. Adjust the PROC control while speaking

into the microphone in a normal tone of voice, for a peak COMP scale reading of no more than 10 dB. Do not overdrive the COMPRESSOR. 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 gain control while speaking into the microphone. Ensure that the meter deflection is within the ALC zone!

4-4. CW OPERATION

AlP switch

When switched on, it

reduces interference from strong signals.

FULL/SEMI switch During CW operation, selects either Full Break-in (FULL) or Semi Break-in (SEMI).

VOX/MAN switch

Used to select Break-in operation.

THRU/AUTO switch THRU; Antenna tuner is off. AUTO: Antenna tuner is on.

AGC switch Set to MID normally.

PLAY, REC keys Records and plays CW messages for transmission.

KEY SPEED control

This control the speed of the

electronic keyer.

PITCH key Select the CW receive tone

(RECEIVING)

pT| Turn on the DC power supply and then turn the transceiver’s power switch ON. |~2] A frequency is shown in the display.

Press the UP/DOWN switches to select the desired frequency band.

When the 1 MHz step position is selected, the MHz indicator will light. [4] Select CW with the MODE key. [~^ Turn the AF gain control clockwise until a signal or noise is heard.

Rotate the TUNING knob and select an open channel.

(Tl

i i

E E E

E E

ER key

to select the desired

r function in transmit. ER key

ges the

tivity.

MODE key Press the CW / FSK key to alternate between CW and FSK.

NB switch/control NB 1 : For pulse type noise,

such as generated by au

tomotive ignition systems.

Noise blanker 2 is used for long duration pulse noise, like the “wood pecker”.

ELECTRONIC KEY switch Turns the electronic keyer on or off. Turn the switch off when CW is initiated by a straight key or when using an external elec tronic keyer.

M.CH/VFO CH control iEV key Reverses the BFO frequency rom USB to LSB.

This control is used to

change the frequency in 10

kHz steps during VFO

operations. HNE key 4akes one turn of the tuning

nob equal 1 kHz (1 Hz

tep) to facilitate tuning.

This control is also used to

select the desired memory

channel during Memory

Channel Operation.

^ANSMISSION)

I Connect a key or electronic keyer to the rear panel CW KEY jack. I Turn on the DC power supply and then turn the transceiver’s power

switch ON. Place the VOX/MAN switch to the VOX position. I A frequency is shown in the display. I Select CW with the MODE key. I Enter the desired frequency.

Before transmitting check the frequency for activity so that you do

not interrupt another QSO. I Press the METER key until the ALC meter lights.

To use external straight key.

■

Ground Not used

+ 5 V. Contact

Current about 1 mA

+ 5 V, Contact

Current about 1 mA

I Press the key; the ON AIR indicator lights and the meter pointer

deflects. I Adjust the CAR control until the meter deflection is within the ALC

zone.

OOODQaDQOOQOQaoaaOOQQDODaaODDD

SWR OOOOOOOOOQOO

ALC zone

I Release the key. Receive will be restored and the ON AIR indicator

will turn off.

Electronic keyer connection.

lil

D D

DASH DOT

( )

IIO

Ground

+ 5V Contact Current

about 1 mA

4-4-1. CW zero-beat Operation

In CW operation equalizing the receiving frequency with that of your transmit is called “Zero beating”. The TS-850 enable you to zero beat in the following manner.

You can forceable change the ratio to you own personal preference or you can select AUTO

WEIGHT control where the weighting adjusts for

changes in keyer speed.

• Auto Weight (Initial state) [When the Power on function selection (Number 21) is ON.]

Press the TUNE key and adjust the tuning knob so that the signal from the other transceiver is zero beat, and deactivate the TUNE key. The CW can then be used with the other transceiver zeroed in.

1. If the VOX/MAN switch is VOX, set it to MAN and depress the key.

2. A side tone will be heard from the speaker.

3. Adjust the TUNING knob so that the transmit frequency of the station you are receiving is equal to the side tone frequency. Zero beating is now completed.

4-4-2. PITCH function

You can specify the desired pitch of the receive tone during CW reception.

1. Press the PITCH key during CW receiving.

2. Select the desired pitch with the M.CH/VFO CH control.

400-450 - 500-550-600-650 - 700

The dot-dash ratio can be set according to the

keying speed. The reverse mode can be turned on or off with the power on function (menu number 22). (Please refer to Section 4-10-15.)

Reverse mode

OFF

The faster the keying speed the longer the dash.

KEY SPEED —CAR

The faster the keying

speed the shorter the dash.

KEY SPEED Control Position

Number 22

OFF

0~3 3~7

1 :2.8 1 :3.2

1 :3.0 1 :3.2 1 :3.0

7~10

1 :2.8

1000--950-- 900--850--800^750

(Initial state)

(Hz)

3. When the PITCH key is pressed again, the pitch

is set, and the normal frequency display returns.

4. The sidetone frequency is the same as the frequency set for the pitch.

4-4-3. Electronic Keyer Circuit Operation

Place the ELECTRONIC KEY switch on the rear panel to ON. Connect a paddle type key to the CW

KEY jack use a 6.0 mm diameter stereo plug. Adjust the KEY SPEED control for the desired speed.

■Weight Adjustment

The ratio of dot / space / dash can be adjusted as follows:

DOT SPACE

1 1

The dot-dash ratio has been factory preset to 1 : 3

and will remain so regardless of the keyer speed.

DASH

SPACE

Notes

1. It requires a little time to change the ratio at about the 3 and 7 positions of the KEY SPEED control where some hysteresis occurs.

2. These dot/dash ratios are only approximate.

• Manual Weight [When the Power on function selection (Number 21) is OFF.]

The dot-dash ratio can be set between 1:2.5 and 1:4.0 with the power on function (menu number 23). (Please refer to Section 4-10-15.)

For the CW message storing, see Section 4-13. DRS function.

■SEMI and FULL break-in operation

Two break-in methods are provided with the transceiver, SEMI and FULL break-in. With either

break-in operation, depressing the CW key will cause the radio to transmit without the need for manually switching the REC / SEND switch. The difference between FULL and SEMI break-in is that during FULL break-in operation it is possible to listen between dots and dashes, and that during SEMI break-in it is not.

Note With either SEMI or FULL break-in operation, cross band / cross mode operation is not possible. Additionally, when you are using FULL break-in you should not work cross band splits, only in the same band.

This transceiver also provides a sidetone oscillator circuit to allow monitoring of your CW signal during transmission. (a) Semi-automatic break-in

Depressing the CW key will automatically place the transceiver into the transmit mode. Transmit mode will be maintained for a period determined

by the setting of the DELAY control on the front

panel of the transceiver, even after the CW key is

released.

(b) Full-automatic break-in

Depressing the CW key will automatically place the transceiver into the transmit mode. Releasing the CW key will return the radio to receive

immediately enabling reception between characters.

■ When the electronic keyer is used as Bug key

When the electronic keyer is used as the Bug key, turn the function on with the function setting (menu number 24) at power on. (Please refer to Section 4-

10-15.)

____________________________________

Note

When the ELECTRONIC KEY changeover switch

is on, menu number 24 is displayed.

Cautions

1. The TL-922 / 922A linear amplifier is not designed for full break-in type operation. Attempting to use this accessory in the FULL

break-in mode may cause damage to the linear amplifier.

2. The switching time between transmit and

receive decreases as you increase your keying speed. This limits the maximum keying speed that is available during FULL break-in operation. When using high speed

CW you should use SEMI break-in.

3. During SPLIT operations with FULL break-in,

clicks may be heard in the monitoring tone or received signal depending on the combination of the transmit / receive

frequencies.

4. During full break-in, the received audio that

passes through the 250 Hz band CW narrow filter may click because of its delay time.

5. If the TS-850S is used with CW filter YK88CN-1 (option) or YG-455CN-1 (option), it is not suitable for full break-in operation because it has a delay time when the signal passes through the narrow-band filter. In this case, you are recommended to perform SEMI break-in operations.

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