Kenwood TS-820 manual Operation W l T H a Linear Amplifier, Fixed Frequency Operation

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When interference is encountered. turn the iF SHlFT knob and the interference can be eliminated. For more effective CW operation. use the CW filter YG-88C (option) by refer- ring to page 34.

OPERATION W l T H C W FILTER (OPTION)

Set the transceiver in the receive mode by setting the IF SHlFT knob to the center posltion and the RIT switch to the OFF position Adjust the main tuning knob for maximum de- flection of the S meter. The pitch of the sound of the receive signal will now be about 800 Hz. indicating that the zeroing is completed.

Turn the RIT switch t o ON and adjust the RIT knob for your desired p~tchof the sound. Also. adjust the IF SHlFT knob for maximum signal strength.

OPERATION W l T H DIGITAL DISPLAY (OPTION)

The digital display indicates the frequency of carrier signal (BFO signal) so that the frequency indicated is deviated from the transmit frequency of the opposlte station by the receive beat frequency during CW reception (with IF SHlFT knob set to its center position. the frequency indicated becomes lo- wer).

To zero~inthe frequencies with the optional digital display DG-1, set the RIT switch to ON and turn the RIT knob while manipulating the standby switch. in order to locate a point at which the frequency indicated is not changed regardless of the position of the stand-by switch. With the RIT knob left in that position, turn the main tuning knob until the slgnal from the opposite station becomes a zero beat signal (zero beat signal can be easily noted by turning IF SHlFT knob). This completes the zeroing of the transmit frequency. Turn the RIT knob for your desired pitch of sound.

TABLE 4. Meter Switch Positions for Different Modes

MODE

METER Switch

 

Approx. Readlngr

 

~- - .

 

 

TUN

ALC or

 

Peaked

 

IP or

 

100 ma

 

RF or

 

113 scale

 

HV

 

800 v

CW

.

 

 

ALC or

/

None or wlthin

 

 

ALC range

 

IP or

200 ma

 

RF or

I

213 scalt:

 

i

4 . 1 4 OPERATION W l T H A LINEAR AMPLIFIER

Tune and load the TS-820 as described in Sections 4.1 through 4.1 1 and adjust it for the selected mode.

The REMOTE connector on the back panel is provided for in- terconnections with an ampliher. See the instruction ma- nual of the amplifter to determnne whether the linear requires a normally open (during recelvel or a normally closed (during receive) relay contact Connect either pin 3 (normally closed to ground during receive) or pln 5 J m e n to ground

during- receive) o i the REMOTE connector to the control jack

-. ...

on the amplifier.

Connect the ALC feedback from the amplifier to pin 6 of the REMOTE connector. The output of the TS-820 is quite ade- quate to drlve mosl amplifiers to full rated output.

4.1 5 FIXED FREQUENCY OPERATION

The T S ~ 8 2 0has a built-in crystal controlled oscillator for f ~ x e dfrequency operation. This feature is most useful for commonly used frequencies. nets, or any situation where crystal controlled operation is required. To use the fixed fre- quency oscillator, turn the FUNCTION switch to the FIX po- sition. Select one of the four available channels with the f i ~ xed channel selector switch and tune and load the TS-820 as described in Sections 4.1 through 4.1 1 Simply operate the transceiver as described in Sections 4.12 and 4.13.

Crystal S p ~ ~ i l i ~ a t i o n s

1. Type of holder: HC-25/U

1.Frequency 5.5 lo 50 MHz

3.Mult#~~l#cnl#on:Fonda~nenlal

4rn:rlt~rnrylnlerance i0002"A at normal tompcralure

Recommended monitoring por8t~ondurmg oneratson

Fig. 9 Crystal Oscillation Circuit

 

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Contents Operating Manual Contents Mode WWVAudio Input Impedance Audio Output ImpedanceSection FeaturesPower Connections InstallationUnpacking Operation LocationKEY HeadphonesExternal Speaker a N D Rtty FS KAC Operation ANTSuitable PTT Microphone Front View Panel Operating Controls@ VFO Indicator @ Meter Switch@ Stand by Switch @ ATT Indicator@ N B Switch VOX SwitchC Switch C Connector@ Function Switch @ B a N D Switch@! H. S W Heater Switch @ Power SwitchRear Panel View Display Hold Switch@ Drive Knob @ Plate KnobRear PAN EL Controls @ Remote Connector External VFO Connector@ DC-DC Converter Connecting Hole PIN FunctionOperating Instructions Preliminary ProcedureReceiver T U N I N G Reading the Operating FrequencyRF G a l N Calibrating T H E FrequenciesCalibrating the Fixed Channel a N D VFO Freciuencies Calibrating the T S 8 2 0 W I T H VFO-8209NOISE Blanker If ShiftAGC a U T O M a T I C Gain Control 1 Transmitter T U N I N GALC Front Panel ControlsUP on 3 C W O P E R a T I O N 2 SSB O P E R a T I O N5 Fixed Frequency Operation 4 Operation W l T H a Linear AmplifierMobile Operation 6 Internal Cross Channel Operation9 Rtty Operation Function TransmitSstv Slow Scan TV Operation USE of Monitor SwitchOperation with a Phone Patch Novice OperationTS-820 Block Diagram General Block D I a G R a MTransmitter Section Receiver SectionBoard a N D Unit Coil Pack Board PLL Unit Counter Assy Unit Display Unit Display Unit OptionAF AVR Board I N a L Stage Power Amplifier General Information Maintenance and AlignmentInstalling the D C D C Converter IDS AccessoriesI b l Transverter TV-5021 Remote Connections Extension Feet Fixed Channel Crystal InstallationAdjustment of Receiver Section Adjustment of T R a N S M I T if Coil if a N D RF Units Adjustment of Transmitter SectionCarrier Balance Adjustment if UNIT1 Neutralizing the Final StageGeneral Information TrolibleshootingTransmitter a N D Receiver Circuits Receiver SectionTransmitter Section SymptomsFAN TOP & Bottom View of the TS-820Page IO--KENWOOD Corporation

TS-820 specifications

The Kenwood TS-820 is a high-performance amateur radio transceiver known for its exceptional features and technologies that cater to both novice and experienced operators. This rig, part of Kenwood's renowned TS series, has become a popular choice for those seeking reliability and versatility in their communication equipment.

One of the defining characteristics of the TS-820 is its dual-conversion superheterodyne receiver architecture. This design minimizes interference and provides improved performance across various amateur radio bands. With coverage from 160 meters to 10 meters, the TS-820 is capable of operating on all major HF amateur bands, making it an excellent choice for diverse communication purposes.

In terms of power, the TS-820 delivers a solid output of 100 watts, ensuring that operators can make their presence known across the airwaves. The rig features a built-in automatic antenna tuner, which simplifies the setup process by matching the transmitter to various antenna types. This feature not only enhances signal clarity but also maximizes the station's efficiency.

Another standout feature of the TS-820 is its extensive digital signal processing (DSP) capabilities. The advanced filtering options help to eliminate noise and interference, allowing users to hear weaker signals more clearly and effectively. The IF filter selections can be adjusted to optimize reception under varying conditions, showcasing the rig's adaptability.

The user interface of the TS-820 is designed for both ease of use and functionality. The large, backlit display provides critical information at a glance, while the rotary controls offer tactile feedback, allowing operators to make precise adjustments quickly. Additionally, the rig supports various modes of operation, including SSB, CW, and RTTY, accommodating a wide range of communication preferences.

Built with durability in mind, the TS-820 utilizes high-quality components and construction techniques that ensure long-term reliability. Its rugged design can withstand the rigors of everyday use, making it a trustworthy companion for any amateur radio enthusiast.

In summary, the Kenwood TS-820 is a versatile and reliable amateur radio transceiver that stands out due to its superior performance, advanced technologies, and user-friendly features. With its robust design and comprehensive capabilities, the TS-820 continues to earn its place as a respected choice among ham radio operators around the world. Whether engaged in casual conversation or competitive contesting, enthusiasts can rely on the TS-820 for a satisfying and immersive amateur radio experience.
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