Kenwood TS-130SE User Manual

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Model TS-130SE

INSTRUCTION MANUAL

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INTRODUCTION

You are the owner of our latest product the new TS-130SE transceiver. Please read this in­ struction manual carefully before placing your transceiver in service. The unit has been carefully engineered and manufactured to rigid quality standards, and should give you satisfactory and dependable operation for many years.

AFTER UNPACKING:

•Shipping container:

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

•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.
		CONTENTS
SPECIFICATIONS......................................................................................................................................................			3
SECTION 1. FEATURES..............................................................................................................................................			4
SECTION 2. PREPARATION FOR USE
2.1	INTERCONNECTION.............. .............................................................................................................		5
2.2	ACCESSORIES......................................................................................................................................		6
2.3	INSTALLATION......................................................................................................................................		6
SECTION 3. CONTROLS
3.1	FRONT PANEL......................................................................................................................................		6
3.2	REAR TOP PANEL................................................................................................................................		8
SECTION 4. OPERATION
4.1	RECEPTION..........................................................................................................................................		9
4.2	TRANSMISSION..................................................................................................................................		10
4.3	VOX OPERATION...............................................................................................................................		12
4.4	SEMI-BREAK-IN OPERATION............................................................................................................		12
4.5	OPERATION WITH A LINEAR AMPLIFIER .......................................................................................		12
4.6	FIXED CHANNEL OPERATION .........................................................................................................		12
4.7	CW OPERATION.................................................................................................................................		13
4.8	MOBILE OPERATION..........................................................................................................................		14
4.9	FIXED STATION OPERATION............................................................................................................		16
4.10	DIGITAL DISPLAY CALIBRATION......................................................................................................		17
4.11	ANALOG DIAL CALIBRATION............................................................................................................		17
SECTION 5. ADDITIONAL		INFORMATION......................................................................................................	17
SECTION 6. OPTIONAL ACCESSORIES..................................................................................................................			20
INTERNAL VIEWS......................................................................................................................................................			22
BLOCK DIAGRAM......................................................................................................................................................			23
SCHEMATIC DIAGRAM........................................................................................................................................			24~30

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^M«••llll•••MII•■•tltll••lllll••IIM••	TS-130SE SPECIFICATIONS
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[GENERALI Frequency Ranga:

Mode:

Frequency Stability:

Power Requirement:

Dimensions:

Weight:

[TRANSMISSTER] Final Power Input:

Audio Input Impedance:

RF Output Impedance:

Carrier Suppression:

Sideband Suppression:

Spurious Radiation:

Harmonic Radiation:

[RECEIVER] Receiver Sensitivity: Image Ratio:

IF Rejection: Receiver Selectivity:

SSB/CW WIDE SSB NARROW CW NARROW

Audio Output Impedance:

Audio Output:

80 meter band	3.5	~	4.0 MHz
40 meter band	7.0	~	7.3 MHz
♦30 meter band	10.1	~	10.15 MHzdO.i
20 meter band	14.0	~	14.35 MHz
*1 7 meter band	18.068		~ 18.168 MHz
1 5 meter band	21.0	~	21.45 MHz
♦12meter band	24.89 -- 24.99 MHz
10 meter band	28.0	~	29.7 MHz
SSB/CW

Within ± 1 kHz during the first hour after 1 minute of warmup Within 100 Hz during any 30-minute period after warmup

12 ~ 16V DC (13.8V Nominal) RX: 0.7A 13.8V DC

TX: 19A 13.8V DC

241 (9.6) W X 94 (3.8) H x 293 (1 1.7) D mm (inch) 5.6 kg (12.4 lbs)

8 0 — 1 5 meter band

200W PEP for SSB operation

160W DC for CW operation

10 meter band

160W PEP for SSB operation

140W DC for CW operation

50012 ~ 50 kl2

5012

Better than 40 dB Better than 50 dB Better than 40 dB Better than 40 dB

0.25AiVat 10 dB S-l-N/N Better than 50 dB Better than 70 dB

2.4kHz (-6 dB), 4.2 kHz(-60dB)

1.8kHz (- 6 dB), 3.3 kHz (- 60 dB) with optional YK-88SN filter

500 Hz (- 6 dB), 1.5 kHz (- 60 dB) with optional YK-88C filter 270 Hz (- 6 dB), 1.1 kHz (- 60 dB) with optional YK-88CN filter 4~1612

1.5 W

NOTE: Circuit and ratings may change without notice due to developments in technology.

* Will transmit on the new 30, 17, and 12 meter bands. Diodes installed for preventing accidental transmission be­ fore government amateur authorization.

SECTION 1. FEATURES

1 . SINGLE-CONVERSION SYSTEM USING PLL CIRCUITRY

The single-conversion system, with a unique Phase Locked Loop circuit, FET balanced mixers and MOS FET's, assures excellent spurious and intermod characteristics.

2. BUILT-IN DIGITAL DISPLAY

The digital display affords easy reading of operating frequen­ cy to an accuracy of 100 Hz on any band and any mode.

3. BUILT-IN IF SHIFT CIRCUIT (Passband Tuning)

An IF SHIFT system is built into the transceiver to allow shif­ ting the IF passband, thereby eliminating adjacent channel interference.

4. 3.5 ~ 29.7 MHz BAND

The transceiver is designed to operate on LSB/USB/CW in the 3.5 ~ 29.7 MHz bands. As supplied, the 10, 18, and

24.5 MHz bands are for reception only. The VFO covers ± 50 KHz above and below each band for near-MARS frequenies. (with the DFC-230, ± 100 kHz.)

5. IMPROVED TWO SIGNAL CHARACTERISTICS

High performance circuit elements in the front end and optimum signal level distribution result in improved inter­ modulation and blocking characteristics.

6. BUILT-IN RF ATTENUATOR

Built-in 20 dB attenuator protects the RF amplifier and mixer from strong signals or a strong interfering adjacent signal. This also prevents cross modulation and blocking.

7. BUILT-IN SPEECH PROCESSOR

Built-in speech processor provides audio compression and varies the ALC time constant simultaneously, resulting in minimal degradation of sound quality.

8. AUTOMATIC SSB MODE SWITCHING

The SSB mode is selected automatically according to the band selected. When the band selected is 10 MHz or higher, USB is selected. When it is below 10 MHz, LSB is selected. Mode selection can be reversed by setting the mode switch to the REV position.

9. COMPACT, LIGHTWEIGHT DESIGN

The TS-130SE has many advanced features, yet it is com­ pact and lightweight, suitable for mobile and field operations as well as fixed-station operation.

10. EASY OPERATION

All controls and switches are carefully arranged for ease of operation, ensuring convenience and versatility.

11. ALL SOLID-STATE DESIGN

The all solid-state, compact unit features a wide-band final stage, eliminating the need for peaking controls.

12. A FIXED CHANNELS

A fixed channel is available for common use on all bands by installing a crystal in the socket on the AF-GAIN unit.

13. FULL RANGE OF AUXILIARY FUNCTIONS

It is equipped with VOX, balanced-gate noise blanker for pulse noise rejection, and a 25 kHz marker.

14. SSB narrow filter YK-88SN

An optional SSB narrow filter YK-88SN can be installed. (Reception only)

15. OPTIONAL CW FILTERS YK-88C AND YK-88CN

The TS-130SE permits use of the optional YK-88C or YK-88CN CW filter (Reception only). CW semi-break-in operation is provided using the built-in VOX and CW side-tone circuits.

16. WIDE VARIETY OF OPTIONAL ACCESSORIES

The following optional accessories are available: Regulated power supply (PS-30) for the TS-130SE, frequency con­ troller (DFC-230), external VFO (VFO-120), external speaker (SP-120), mobile mount (MB-100), fan unit (FA-4), CW filter (YK-88C), CW narrow filter (YK-88CN), SSB narrow filter (YK-88SN), and other optional units.

SECTION 2. PREPARATION FOR USE

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2.1 INTERCONNECTION

Connect the transceiver as illustrated in Fig. 2-1.

Microphone

Either a low or high imped­ ance microphone (50012 to 50ki2) 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 VOXare available.

TS-130SE	Headphones
	Use headphones of 4 to 1612
	impedance. The optional HS-
	6,5.4 headphone is best suited
	for use with the TS-130SE.
	Stereo type headphones can
	also be used.
	External speaker
	Besides the built-in
	SP-120 speaker, an external
	=^speaker can also be
	used Connect to the
	rear EXT SP jack using
	the supplied plug.

Microph

Ircrophone [)(»

(b) noi this

Microphone 0

GND terminal
It is recommended that a ground
lead be connected to the GND
terminal at the rear of the set to
prevent the possibility of electric
shock. TVI and BCI. Use as short,	Fig. 2-1 [A] TS-130SE Interconnection
and heavy a lead as possible

External VFO

For connection of ex­ ternal VFO-120 Note: VFO-520 and VFO-820 cannot be used

Frequency Controller DFC-230

The DFC-230 incorpo­ rates a digital VFO operating at 20 Hz step, and 4 memory channels permitting remote frequency control.

REMOTE connector

External accessories can be con­ nected to the TS-130SE through the REMOTE connector. The PTT terminal can be used for remote control of send/receive operation

Fig. 2-1 [B] Antenna and Power Supply Connection for TS-130SE

2.2 ACCESSORIES
The following accessories are furnished with	the TS-
130SE.
DC power cord (E30-1638-05)........................................	1
Fuse, 20A (F05-2034-05)................................................	1
Instruction manual (B50-3954-00)..................................	1
2.3 INSTALLATION

It is preferable to choose an operating location that is dry and cool, and to avoid operating the transceiver in direct

sunlight.

Allow adequate ventilation, particularly during mobile opera­ tion.

NOTE:

The TS-130SE is supplied to receive on the following frequencies (transmission is disabled):

10 MHz band (10.0-10.25 MHz)

18 MHz band (18.0-18.5 MHz)

24.5MHz band (24.5-25 0 MHz)

SECTIONS. CONTROLS

@ ANTI vox CONTROL		g)FIX		INDICATOR
(g) DELAY CONTROL		§)VOX		INDICATOR
@ VOX GAIN CONTROL		(0)RIT INDICATOR
		(0) CARRIER LEVEL		CONTROL
(Q) SUBDIAL
		(TT) MIC CONTROL
		RF GAIN CONTROL
0 METER		AF GAIN		CONTROL
DIGITAL DISPLAY
0 STANDBY SWITCH		(Q) IF SHIFT CONTROL
0MODE SWITCH			BAND		SWITCH
			@ RIT	CONTROL
0 MIC CONNECTOR
0 PHONES JACK
0 PROC SWITCH		0	POWER		SWITCH
0 VOX SWITCH		NOISE	BLANKER		SWITCH
0 METER SWITCH	RF	ATT(RF ATTENUATOR)			SWITCH
(g) FIX SWITCH		0 NAR WIDE			SWITCH
(||)MAIN TUNING CONTROL			_ RIT SWITCH

Fig. 3-1

3.1 FRONT PANEL

0 METER

The meter has three functions, two being selected by the METER switch. In receive the meter is automatically an S- meter showing receive signal strength on a scale of 1 ~ 9, 9 -I- 20, -h 40 and + 60 dB. In transmit, the meter shows Ic or ALC level, depending on METER switch position.

0 DIGITAL DISPLAY

The digital display indicates true operating frequency to an accuracy of 100 Hz.

0 MODE SWITCH

SSB............... Permits SSB operation. LSB is normally selected for opration on the 3.5 and 7 MHz bands, and USB for operation on and above the 10 MHZ bands.

Switching between LSB and USB is done automatically by the BAND switch.

Front Panel
REV...............	During SSB operation, this position selects
	the reverse side band; from USB to LSB or
	vice versa.
CW.................	Used for CW operation.

0 STANDBY SWITCH

This switch selects receive or transmit function.

In the REC position, the transceiver is normally in the receive mode unless the microphone PTT switch is depressed. In the SEND position, the TS-130SE is switched to the transmit mode.

CAUTION: Do not transmit without an antenna or dummy load. Equipment damage will occur. Such damage is not covered by warranty.

0 MIC CONNECTOR

Connect your microphone (MC-30S, MC-35S, MC-50, MC60/N4, etc.), referring to Fig. 2-1. The TS-130SE accepts both low and high impedance microphones.

6

(D PHONES JACK

The headphone jack allows use of 4-to-l 6-ohm (or greater) headphones. HS-6, HS-5, HS-4 optional headphones provide optimum results. Stereo-type headphones can also be sued. This will disable the internal and external speaker.

® PROC (processor) switch

During SSB transmission, the speech processor may be used to increase "talk power".

® VOX (VOICE OPERATED TRANSMIT) SWITCH

This function is used for SSB VOX or CW semi-break-in - operation. In the MAN (manual) position, the transceiver is keyed by either the standby switch or the microphone PTT switch. For VOX operation, the standy switch remains in REC. (See page 11.)

(D METER SWITCH

During transmission, the meter switch determines meter function. The switch selects between:

ALC.................... The meter monitors the output of the final stage power amplifier during transmis­ sion. During SSB operation, adjust the MIC control so that the meter pointer is within the ALC zone. Similarly, adjust the CAR control for CW operation.

1C....................... The meter monitors final stage collector current. 12 ~ 19A is normal, 17A typical.

@ FIX (fixed channel) SWITCH

The TS-130SE has a built-in fixed channel oscillator (crystals are user-provided, optional) which is activated by the FIX switch for fixed channel or VFO operation.

(D) SUBDIAL

The subdial is calibrated from 0 to 500. It is driven from the main tuning knob to indicate the transceiver's operating frequency.

® MAIN TUNING CONTROL

This control is used to select the desired operating frequen­ cy. The scale on the control knob is calibrated at 1 kHz in­ tervals, allowing accurate tuning. For exact frequency, read the Digital Display.

(0) RIT INDICATOR

This light emitting diode indicates the RIT circuit is ON.

(Q) IF SHIFT CONTROL

By using this control, the IF crystal filter center frequency can be shifted ±1 kHz, allowing adjustment of tone quality, or eliminating interference from adjacent frequencies.

For normal operation, this control should be set to the center "0" position (detent).

@ RIT CONTROL

When the RIT circuit is ON, this will vary receive frequency by about ±1.5 kHz. When the control is set to the "0" center position, there is no frequency shift.

(3) CAR (CARRIER LEVEL) CONTROL

This control is used to adjust the carrier output level and is effective only during CW operation. Adjust the control so the ALC meter indication is within the ALC zone. For "QRP" operation, reduce carrier insertion.

(0) MIC (MICROPHONE GAIN) CONTROL

This adjusts mic amplifier gain during SSB operation. Again, adjust the control so the ALC meter indication is within the ALC zone.

When this control is set to the CAL ON position, the built-in calibrator is activated, permitting calibration of the receiver dial scale at 25 kHz intervals.

(0) AF GAIN (AUDIO GAIN) CONTROL

This control adjusts the receiver audio amplifier gain. Volume of the received signal increases as the control is turned clockwise.

@ RF GAIN CONTROL

This adjusts the receiver section's RF amplifier gain. Turn the control fully clockwise for maximum gain. Turn counterclockwise to reduce the gain.

(g) BAND SWITCH

This switch selects all Amateur bands from		3.5 —	29.7
MHz. The 10, 18,	and 24.5 MHz bands as	supplied	are
for reception only,	and transmission on these frequencies

is not possible. Use the 10 MHz band to receive WWV at 10.0 MHz.

CAUTION: —------------------------------------------------------------------

Do not turn the bandswitch during transmit.

(2) POWER SWITCH

This switches the TS-130SE ON and OFF.

@ NB (NOISE BLANKER) SWITCH

This switch is used to reduce pulsating ignition noises of the type usually emitted from motor vehicles. Power-line, QRM and atmospheric "white" noise will not operate the noise blanker.

@ RF ATT (ATTENUATOR) 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.

® NAR/WIDE switch

This switch selects receive IF bandwidths between narrow and wide. The WIDE position provides the same IF bandwidth for both CW and SSB. For the NARROW posi­ tion, optional filters are available for both CW and SSB.

® RIT SWITCH

This push switch turns the RIT (Receiver Incremental Tun­ ing) circuit ON and OFF. With the switch depressed, the cir­ cuit is activated and the RIT indicator is illuminated, allowing the receive frequency to be shifted by about ±1.5 kHz in­ dependent of the transmit frequency by using the RIT con­ trol. The RIT circuit is turned OFF when the switch is out.

® vox GAIN CONTROL

This control adjusts VOX circuit sensitivity for both SSB and CW operation.

(g) DELAY CONTROL

This control is used to adjust the "Hold" time of the VOX cir­ cuit. Clockwise adjustment gives longer hold-time.

(g) ANTI-VOX CONTROL

This control is used to adjust the VOX system so that it is not tripped by sound from the speaker.

NOTE:---------------------------------------------------------------------------

The VOX control panel (and serial number plate) is covered by thin plastic brotective film which may be beeled off and

0ANT CONNECTOR

discarded. It is provided to protect the panel during ma­ nufacture, and is not intended as a permanent part of the radio.

® FIX INDICATOR

The FIX indicator illuminates when the internal fixed frequency oscillator controls transceiver operation.

(8) VFO INDICATOR

The VFO indicator illuminates when the internal VFO controls transceiver operation. The indicator is not lighted during fixed channel or remote VFO operation.

I EXT VFO CONNECTOR

-(4) SPEAKER JACK

)GND TERMINAL	REFERENCE FREQUENCY
	ADJUSTMENT ACCESS
	(D REMOTE CONNECTOR

0DC POWER CONNECTOR

Fig 3-2 Rear. Top Panel

3.2 REAR PANEL

0 ANT (ANTENNA) CONNECTOR

This UHF connector should be attached to a suitable anten­ na for transmitting and receiving. The antenna cable should be 50-ohm coax, terminated with a PL-259 connector.

(D GND (GROUND) TERMINAL

The TS-130SE should be grounded through this terminal to avoid the possibility of TVI and BCI. Use as short and heavy a lead as possible.

(D CW KEY JACK

For CW operation, connect your key to this terminal using a two conductor phone plug and shielded cable.

0 SPEAKER (EXTERNAL SPEAKER) JACK

An external speaker of 4 ~ 16 ohms impedance (such as the SP-120) can be connected here. This will disable the in­ ternal speaker.

(D REMOTE CONNECTOR

This connector is used to interconnect a linear amplifier or other accessory item.

	PIN	FUNCTION	PIN	FUNCTION
	1	Record output	5	Normally closed
	2	Relay common		(relay contact)
		terminal	6	ALC input
		(NOT grounded)		AlC threshold level
	3	PTT line		approx. — 6V
			7	No connection
	4	Normally opened
		(relay contact)

® EXT VFO (EXTERNAL VFO) CONNECTOR

This is for connection of an external VFO-120, or remote Frequency Controller DFC-230. (Note: the VFO-520 and VFO-820 cannot be used, since their operating frequency is incorrect.)

PIN	FUNCTION	PIN	FUNCTION
1	VFO signal	5	VFO control
2	Relay control	6	Display control
	( + on transmit)
3	-F9V	7	Ground
4	CW freq. shift control	8	+ 12V

0 DC POWER CONNECTOR

This is used to connect the DC power supply.

® REFERENCE FREQUENCY ADJUSTMENT (SIDE)

For PLL reference oscillator adjustment. Use WWV signal for calibration.

SECTION 4. OPERATION

Settings for reception	Settings for transmission
RF Turn fully
clockwise	Turn CAR and
AF Turn fully	MIC fully counter
counterclockwise	clockwise

Microphone

Fig. 4-1 Control and Switch Settings

4.1 RECEPTION

First connect the antenna, microphone and key. Then, set the controls and switches referring to Fig. 4-1.

Ascertain that the TS-130SE is ready for operation, then turn the POWER switch ON. The meter, dial scale and digital display will illuminate, indicating the transceiver is in operation. The transceiver is fully solid-state, allowing reception as soon as the POWER switch is turned ON.

Advance the AF GAIN control clockwise until some receiver noise is heard from the speaker. Turn the main tuning con­ trol so the desired signal can be heard clearly.

Adjust the RF GAIN so the S-meter does not show ex­ cessive deflection. This minimizes noise during reception and allows the S-meter to indicates signal peak (or a little below that point). Noise is markedly reduced when signal is absent.

S-meter peak	point
		AF GAIN —
\C> 0 ^	4
-----------

4.1.1.WWV RECEPTION

To receive WWV at 10 MHz, set the BAND switch to "10" and turn the main tuning control until the subdial reads"0".

		S-meter	reading	Full
				Clockwise
	Signals below	at partial counter-
				position
			AF GAIN	RF GAIN

4.1.2RF ATT switch

The input to the receive RF amplifier is attenuated ap­ proximately 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 recep­ tion when a strong adjacent signal may blank the receiver.

4.1.2.NB SWITCH

The TS-130SE has a sophisticated noise blanker designed to reduce ignition-type pulse noise. The noise blanker is par­ ticularly important for mobile operation. When necessary, activate the noise-blanker by depressing the NB switch ON.

4.1.3.RF GAIN CONTROL (Fig. 4-2)

For normal operation, this control should be turned fully clockwise for maximum sensitivity. Receive sensitivity is reduced by turning the control counterclockwise.

6

Fig. 4-2 RF G A I N Control Operation

4.1.4.RIT CONTROL

By using the RIT (Receiver Incremental Tuning) control, the receive frequency can be shifted by about ±1.5 kHz without changing the transmit frequency.

If the frequency of the station you are working changes, your receive frequency can be reset by turning the RIT switch ON and adjusting the RIT control. Adjusting the control clockwise increases the frequency. The RIT shift can be checked by the digital display. When first calling another station, the RIT should be OFF, otherwise your transmit and receive frequency will not coincide.

4.1.5. IF SHIFT CONTROL

The IF SHIFT control is used to shift the passband of the IF filter without changing receive frequency. By turning this control in either direction, the IF passband is shifted as shown in Fig. 4-3.

The IF SHIFT is effective in eliminating interference when the receive signal is superimposed on nearby signals during operation in both SSB or CW mode.

Turned in 0 direction	Turned in © direction
	IF filter passband

e ©	© 0
Turn in © direction	Turn in © direction
to eliminate inter­	to eliminate inter­
ference from signal (§)	ference from signal @

Fig. 4-3 IF SHIFT CONTROL

(1) USB Mode (10 MHz and above)

Adjust the IF SHIFT control in the © direction and lower frequencies are cut. Adjust the control in the © direction and high frequencies are cut.

(2) LSB Mode (3.5, 7 MHz)

Adjust the control in the © direction and higher frequencies are cut. Adjust the control in the © direction and low fre­ quencies are cut.

(3) CW Mode

By using the IF SHIFT in conjunction with the RIT, tone quality can be adjusted.

4.1.7 NAR-WIDE switch operation

For short to medium distance communication, the WIDE position may be used for both SSB and CW operation. For DX (long distance) communication, the NAR position will be an advantage in reducing interference.

This feature, in combination with the IF SHIFT control, will provide outstanding interference rejection. The receive IF

bandwidth is 2.4 kHz in the wide position, and 270 or 500Hz for CW (with optional filters YK-88CN and YK-88C respectively) and 1.8 kHz for SSB (with optional filter YK-88SN), both in the NAR position. In transmit, bandwidth is automatically WIDE.

PASSBAND WIDTH (-6dB) kHz

	MODE		CW			SSB
FILTER		WIDE		NARROW	WIDE		NARROW
No optional filter		2.4		*	2.4		•
YK-88C or CN		2.4		500	2.4		«
				or 270
YK-88SN		2.4		1.8	2.4		1.8
YK-88C or CN		2.4		500	2.4		1.8
YK-88SN				or 270

* Can not be received.

4,2 TRANSMISSION (Fig. 4-4)

CAUTION: -------------------------------------------

Before transmitting, be sure to connect an antenna or dum­ my load with a VSWR of less than 1.5:1. Never attempt to transmit with the antenna terminal left open.

When testing the transmitter, connect a 50-ohm dummy load, rated at more than 100W. Refer to Fig. 4-1 for initial control settings.

When the TS-130SE is ready for transmission, use the following procedure;

•SSB Operation

1 Set the MODE switch to SSB.

2Meter switch to ALC.

3Standby switch to SEND.

4Speak into the microphone and adjust the MIC GAIN for meter deflection within the ALC zone at signal peaks.

•PROC (processor) operation

In DX (long distance) operation, it may be desirable to in­ creased talk-power by using the speech processor.

The speech processor in the TS-130 Series combines an audio compression amplifier with changes in ALC time cons­ tant to provide extra audio punch to increase average SSB output power, while suppressing sideband splatter. To ac­ tivate, turn on the PROC switch, and readjust mic gain. Operated as described, destortion will be minimal. However, tone quality will be affected. It is therefore ad­ visable to conduct normal operation with the processor dis­ abled.

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 10k —33kS2 resistor (depen­ ding on microphone used) across the microphone input.

(Mic control setting should be approximstely 12 O'clock)

10