Kenwood TS-820 manual Accessories, Installing the D C D C Converter IDS

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6.2 ACCESSORIES

CAUTION: BE SURE THE TRANSCEIVER IS UNPLUGGED AND TURNED OFF BEFORE REMOVING THE CASE.

INSTALLING THE C W FILTER IYG-88C) (See F~gure251

Install the filter unit according to the following procedures: 1 . Remove the top cover of the transceiver using a screw- driver. Care should be used not to break the leads con- nected between the 2P connector and the speaker on

the cover. Next. remove the 2P connector.

2.Turn the transceiver upside-down and remove the bot- tom cover.

3 . Insert the filter in place at the IF unit circuit board on the left wall of the transceiver. Solder the 4 pins from the rear side using a small size soldering iron. Soldering should be finished as quick as possible.

4.Change the position of the wnnector IIF2) located at the lower section of the IF unit depending on whether the FSK shift width is 1 7 0 Hz or 8 5 0 Hz.

Only SSB filter used ......................................... A

SSB and CW filters used:

 

 

FSK shift 1 7 0 Hz (CW filter

used)

8

FSK shift 850 Hz ISSB filter

used)

C

I ? > ( I ( ? , 1 1 .4 , I , , < * * , 8 " , a , , , :

.....

-Green Gray

Purple

NOTE:

1)If you are not interested in FSK operation. plug in the connector either to the "8" position or the "C" position.

2)To facilitage the installation of filter and setting of connector. remove the 3 screws holding the IF unit fixture to the chassis and then pull the unit upward.

5 . Reconnect the 2P speaker mnnector in position. then replace the bottom cover and the top cover. The instal- lation of the filter is now completed.

INSTALLING THE D C - D C CONVERTER IDS - 1)

1Remove the patch plate located on the rear panel of TS-820

2Secure the DC-DC unlt to the rear panel usrng the four

tapplng screws supplled w ~ t hthe unlt

3Select the correct color coded lead from the DC-OC unlt rnaklng sure that the color code corresponds to that of the lead connected to the DC-OC termlnal board adla- cent to the power transformer

Solder the lead onto the terrnlnal board

/

\ Rear panel of Ts-820

Roar panel

r

Fig. 2 5 Installing the C W Filter

Fig. 2 6 lnstallrng the DC - DC Cbnverter

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Contents Operating Manual Contents Audio Input Impedance WWVMode Audio Output ImpedanceFeatures SectionUnpacking InstallationPower Connections Operation LocationExternal Speaker a N D HeadphonesKEY Rtty FS KANT AC OperationSuitable PTT Microphone Operating Controls Front View Panel@ Stand by Switch @ Meter Switch@ VFO Indicator @ ATT IndicatorC Switch VOX Switch@ N B Switch C Connector@! H. S W Heater Switch @ B a N D Switch@ Function Switch @ Power Switch@ Drive Knob Display Hold SwitchRear Panel View @ Plate KnobRear PAN EL Controls @ DC-DC Converter Connecting Hole External VFO Connector@ Remote Connector PIN FunctionReceiver T U N I N G Preliminary ProcedureOperating Instructions Reading the Operating FrequencyCalibrating the Fixed Channel a N D VFO Freciuencies Calibrating T H E FrequenciesRF G a l N Calibrating the T S 8 2 0 W I T H VFO-820AGC a U T O M a T I C Gain Control If Shift9NOISE Blanker 1 Transmitter T U N I N GFront Panel Controls ALCUP on 2 SSB O P E R a T I O N 3 C W O P E R a T I O N4 Operation W l T H a Linear Amplifier 5 Fixed Frequency Operation9 Rtty Operation 6 Internal Cross Channel OperationMobile Operation Function TransmitOperation with a Phone Patch USE of Monitor SwitchSstv Slow Scan TV Operation Novice OperationTS-820 Block Diagram Transmitter Section Block D I a G R a MGeneral Receiver SectionBoard a N D Unit Coil Pack Board PLL Unit Counter Assy Unit Display Unit Option Display UnitAF AVR Board I N a L Stage Power Amplifier Maintenance and Alignment General InformationAccessories Installing the D C D C Converter IDSI b l Transverter TV-5021 Fixed Channel Crystal Installation Remote Connections Extension FeetAdjustment of Receiver Section Carrier Balance Adjustment if UNIT1 Adjustment of Transmitter SectionAdjustment of T R a N S M I T if Coil if a N D RF Units Neutralizing the Final StageTransmitter a N D Receiver Circuits TrolibleshootingGeneral Information Receiver SectionSymptoms Transmitter SectionTOP & Bottom View of the TS-820 FANPage 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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