Kenwood TS-820 manual Installation, Unpacking, Operation Location, Power Connections, Antenna

Page 5

SECTION 2. INSTALLATION

5

-

2.1UNPACKING

Remove the TS-820 from its shipping box and packing material and examine it for visible damage. If the equipment has been damaged in shipment. save the boxes and packing material and notify the transportation company immedia- tely. It is a good idea to save the boxes and packing material in any case because they are very useful for shipping or mo- ving the equipment.

The following accessories should be included with the trans- ceiver:

1 Operating Manual

1 Microphone Plug

1Jumpered 9-pin Plug (~nstalled)

5 RCA Phono Plugs

1Alignment Tool

2Plastic Extension Feet with Screws

1 AC Power Cord

1Speaker Plug

18P US Plug

4Fuse (6A x 2. 4 A x 2)

2.2OPERATION LOCATION

As with any solid state electronic equipment the TS-820 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 and any object. This space allows an adequate air flow from the ventilating fan to keep the transceiver cool.

2.3POWER CONNECTIONS

Make sure the POWER switch on the front panel of the TS-820 is turned off, the stand-by switch is put in the REC position. and that the voltage switch on the back of the TS-820 is switched to the correct line voltage (12 0 or 220). Connect the POWER cord to an appropriate external power source.

2.4 ANTENNA

Connect a 5 0 - 7 5 ohms antenna feediine to the coaxial

connector on the rear panel.

Fixed Station - Any of the common antenna systems desi- gned for use on the high frequency amateur bands may be used with the TS-820. provided the input impedance of the transmission line is not outside the capability of the PI-out- put matching network. The transmission line should be of the coaxial cable type. An antenna system which shows a standing wave ratio of less than 2 : 1 when using 5 0 or 7 5 ohm coaxial transmission line, or a system that results in a transmission line input impedance that is essentially resisti-

ve. and between 15 and 2 0 0 ohms wfll take ~ o w efrom the transceiver with little difficulty. If openwire or balanced type transmission line is used with the antenna. a suitable an- tenna tuner is recommended between the transceiver and the feed llne Methods of construction and operating such tuners are descr~bedin detail in the ARRL Antenna Hand- book. and similar publications. For operation on 75 and 4 0 meter bands. a simple dipole antenna. cut to resorlance in the most used portion of the bands. will perform satisfacto- rily For operation of the transceiver on the 10. 15. and 2 0 meter bands. the efficiency of the station will be greatly in-

creased if a sood directional rotary antenna is used. Re-

.

member that even the most powerful transceiver is useless without a proper antenna.

Mobile Statlon - Mobile antenna installations are critical. since any mobile antenna for use on the high frequency bands represents a number of compromises. Many ama- teurs lose the efficiency of their antenna through improper tuning. Remember the following points when using the TS-820 with a mobile antenna.

The "Q" of the antenna loading coil should be as high as possible, There are several commercial models available which use high "0" coils.

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 8 0 watts.

The SWR bridge is a useful instrument, but unfortunately it is quite often misunderstood. and overrated in importance. Easically. the SWR bridge will indicate how closely the an- tenna load impedance matches the transmission line. With long transmission lines. such as will be used in many fixed station installations. it isdesirable to keep the impedance match fairly close in order to limit power loss. This is parti- cularly true at the higher frequencies. The longer the h e . and the higher the frequency, the more important SWR be- comes However. in mobile installations the transmission line seldom exceeds 2 0 feet in length, and an SWR of even

4to 1 adds very little power loss. The only rime SWR will indicate a low figure is when the antenna presents a load close the 5 0 ohms, but-many mobile antennas will have a base nmpedance as low as 15 or 2 0 ohms at their resonant frequency. In such a case. SWR will indlcate 3 or 4 to 1.

and yet the system will be radiating efficiently.

The really important factor in your mobile antenna is that is should be carefully tuned to resonance at the desired fre- quency. 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 redu- ced in an effort t o bring SWR down. Since field strength is the primary goal, we recommend a field strength meter for antenna tuning.

Page 4 Page 6
Image 5
Page 4 Page 6
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 GUP on ALCFront Panel Controls 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.
Top Page Image Contents