3.2 REAR PAN EL CONTROLS

a R F V O L l

Use the RF VOLT control to adjust the sensitivity of the RF output function of the meter Adjust i t for a 2/3 scale rea- ding during CW transmission.

@COOLING F A N

This fan cools the RF amplifier section of the T S ~ 8 2 0to In- sure reliable and efficient operation.

ANTENNA CONNECTOR

This 5 0 - 2 3 9 coax connector should be attached to a suita- ble antenna for transmitt~ngand receiving. See Section 2.4 for a discussion of an appropriate antenna.

@B l A S CONTROL

The BlAS control adjusts the bias voltage of the two S2001A 16146B) amplifier tubes. Tuning the control clock- wise increases the idling plate current of the tubes. Section 4 describes adjustment of the bias current.

a SG SWITCH

The SG slide switch controls the screen grid voltage on the final tubes. For tuning or neutralizing the TS-820 you can set the switch to the OFF position. Turn the switch back t o the ON position for normal operation. The SG voltage 1s on when the switch is up and off when the switch is down.

8 TRANSVERTER I N J A C K

This is the RF input jack for input from a VHF transverter.

-*a TRANSVERTER OUT J A C K

This is the low level RF output jack for use with a VHF trans- verter.

G N D I G R O U N D I LUG

Toprevent accidental shocks from the chassis. as well as in- terference. connect a good earth ground to this lug.

FUSE

This fuse is a 3AG. 4 amp fuse which protects the power supply of the transmitter against short circuits. Never use a higher amperage fuse than the one specified. An improper one can cause extensive damage to the transmitter. When the fuse blows out. try to determine the cause before repla- cing it.

Wnen the position of the AC Voltage Selector S w ~ t c his changed. i t is also necessary to change the power fuse. For 1 2 0 volt operation a 6 ampere fuse. for 2 2 0 volt operation a

4ampere fuse prov~dedwith the TS-820 should be used.

@A C VOLTAGE SELECT SWITCH

This sldde switch switches the primary of the power transfor- mer to select 1 2 0 or 2 2 0 VAC operation.

@POWER SUPPLY CONNECTOR

This 12-pin connector is used to connect an AC or DC power source to the transceiver.

@TRANSVERTER CONNECTOR

This 12-pin connector is used to control an accessory VHF transverter+.

FUNCTIONFUNCTION

Tranrverter in

 

 

 

Normally closed

 

 

 

relay contact

3

t 2 1 0 VDC

 

Ground

4

No connectton

1 0

+ 2 1 0 VDC

5

1 0 0 VDC

11

No connection

6

Tranrverter in

12

Ground

@X VERTER SWITCH

When VHF Transverter JTV-502) is connected t o the trans- ceiver. the selection of HF or VHF is automatically accom- plished by setting the transverter switch t o ON or OFF.

@PHONE PATCH I N J A C K

This is a phone patch input terminal for transmission of SSTV or other line inputs.

@PHONE PATCH OUT J A C K

This is a line output terminal for phone patch or recording. I t is also used for connection to the input of FSK demodulator SSTV.

@SPEAKER J A C K

The receiver audio output can be connected through this jack to the external 4 to 1 6 ohm speaker. The internal speaker is disconnected when an external speaker is con. nected.

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Kenwood TS-820 manual Rear PAN EL Controls

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.