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OPERATING MANUAL

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OPERATING MANUAL

CONTENTSTS-820 SPECIFICATIONS ........... SECTION 1 SECTION 2 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9~w ' %

Transmitter Tuning SSB Operation CW Operation Operation w i t h a Linear Amplifier Fixed Frequency Operation Internal Cross Channel Operation Mobile Operation DX Operation (Use of Processor) RTTY Operation SSTV (Slow Scan TV) Operation 4.21 4.22 4.23 Operation w i t h a Phone Patch Use of Monitor Switch Novice Operation

FEATURES

...........

INSTALLATION ....

Unpacking Operation Location Power Connections Antenna Microphone Key External Speaker and Headphone RTTY (FSK) Ground OPERATING CONTROLS

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9

SECTION 3 3.1 3.2

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Front Panel Controls Rear Panel Controls OPERATING INSTRUCTIONS

TS-820 BLOCK DIAGRAM SECTION 5 CIRCUIT DESCRIPTION 5.1 Block Diagram Board and Unit Final Stage Power Amplifier 5.2 5.3

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SECTION 4 4.1 4.2 4.3

..........1 6

Preliminary Procedure Receiver Tuning Reading the Operating Frequency Calibrating the Frequencies RF GAIN RF ATT RIT IF Shift Noise Blanker AGC (Automatic Gain Control)

SECTION 6 6.1 6.2 6.3 . 6.4

MAINTENANCE A N D ALIGNMENT. 33

General Information Accessories Adjustment of Receiver Section Adjustment of Transmitter Section TROUBLESHOOTING

4.44.5 4.6 4.7 4.8 4.9 4.10

SECTION 7

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40 42

TOP and BOTTOM VIEW OF THE TS-820 SCHEMATIC D I A G R A M

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TS-820 SPECIFICATION. . . . . . .band band band band band band band band band

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FREQUENCY RANGE .................. ....... 160 meter 8 0 meter 4 0 meter 2 0 meter 1 5 meter 1 0 meter 10 meter 10 meter 10 meter WWV MODE POWER REQUIREMENTS .....................Receive

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- 1.80 to 2.00 MHz - 3.50 to 4.00 MHz - 7.00 to 7.30 MHz - 14.00 to 14.35 MHz - 21 .OO to 21.45 MHz - 28.00 to 28.50 MHz (A) - 28.50 to 29.00 MHz (E) - 29.00 to 29.50 MHz (Ci - 29.50 to 29.70 MHz (Dl - 15.0 MHz (;eceive only)

USE. LSB, or CW. FSK 120/220 VAC. 50/60 Hz operation13 8V 5A

DC'operslionlheatersanl (heaters off) lrnaxirnuml

Trilnsmit

45 watts lheaterr an! 26 w a f t s l h e a t e r r off!

06A15A

280 waxti lmaximum!

PLATE POWER INPUT .......................... ,20/220VAC, 50/60 Hz 200watls PEP for SSB operation 160 wafts DC for CW operation 100 watts for FSK operation AUDIO INPUT IMPEDANCE ................. 50 k ohms (high impedance)

13BV DC operarion 120walls PEP for SSB operatian 90 warts DC for CW operslion 60 w a f t s for FSK operafion

A U D I O OUTPUT IMPEDANCE ............... 4 to 16 ohms (speaker or headphones) AUDIO OUTPUT .................................... More than 1.5 watts (with less than 10% distortion) into an 8 ohm load. RF OUTPUT IMPEDANCE ...................... 50 FREQUENCY STABILITY

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75 ohms

....................... Within

100 Hz during any 3 0 minute period after warmup Within i l kHz during the first hour after 1 minute of warmup

AUDIO FREQUENCY RESPONSE ........... 4 0 0 t o 2 6 0 0 Hz, within - 6 db CARRIER SUPPRESSION ......................Carrier better than 4 0 db down from the output signal SIDEBAND SUPPRESSION ................... Unwanted sideband is better than 50 dbdown from the output signal I M A G E RATIO ....................... . . ........... Image frequency better than 60 db ( 5 0 db for 10 meter band) down from the output signal, -

H A R M O N I C RADIATION ....................... Better than 4 0 db down from output signal SPURIOUS RADIATION ........................ Better than 60 db down from output signal (without spurious radiation)

s.

IF REJECTION ....................................... IF frequency is 8 0 db or more down from output signal RECEIVER SENSITIVITY ........................ 0 2 5 g V S f N/N 1 0 d b o r m o r e =.RECEIVER SELECTIVITY ............... ....... SSB: CW*: 2.4 kHz bandwidth 1-13 db down) 4.4 kHz bandwidth 1-60 db down) 0.5 kHz bandwidth ( - 6 dbdown) 1.8 kHz bandwidth ( - 6 0 db down) * (with optional CW filter installed)

TUBE AND SEMICONDUCTOR ............ COMPLEMENT

3 5 30 74 167

Tubes IC's FET's Transistors DiodesX

DIMENSIONS ................................... 13.2" wide x 5.9"high WEIGH 37.4 lbs.

13.2" deep

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