KW Communications KW 202 Receiver
Manufacturer:
Model:
KW 202
Date:
1973
Category:
Group:
Description:

Information

The K.W, 202 Receiver has been designed far optimum performance on SINGLE SIDEBAND SUPPRESSED CARRIER, with excellent results on C.W. and A.M. It operates on all Amateur Bands between 1.8 MHz and 30 MHz. The Receiver employs thirteen valves in a double-conversion superhet circuit, plus 12 diodes and one transistor. The K.W. 202 has a built-in power unit operating from a 105 - 120, 210 - 240v, 45-65 Hz AC Supply. A two-speed V.F.O drive is used to rotate the scale which is calibrated 0-500 KHz, and can be re-set for optimum read out accuracy. A plug-in CRYSTAL CALIBRATOR provides marker signals every 100 KHz for checking the dial calibration accuracy; (This is available as an optional extra). A built-in Q-MULTIPLIER improves the selectivity for CW operation, and has a NOTCH facility for rejecting unwanted heterodynes and certain interfering signals.

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Service and User Manual
Manual type:
Service and User Manual
Pages:
28
Size:
2.07 Mbytes (2175296 Bytes)
Language:
english
Revision:
Issue 3
Manual ID:
Date:
Quality:
Scanned document, reading partly badly, partly not readable.
Upload date:
19 February 2014
MD5:
dd3629b1ab55f3d97f53af980da84e62
Downloads:
525

Information

SECTION 1 GENERAL DESCRIPTION AND SPECIFICATION 1.1 Introduction 1-1 1.2 Specification 1 - 1, 2 1.3 Valve and Semi-Conductor Complement 1-2 SECTION 2 CIRCUIT DESCRIPTION 2.1 RF and Mixer Circuits 2-1 2.2 Oscillator Circuits 2-1 2.3 IF and Detector Circuits 2 - 1, 2.U Q Multiplier 2-2 2.5 S Meter 2-2 2.6 Audio Circuits 2-2 2.7 Wavechange Switch 2-2 2.8 Pre-Selector 2-2 2.9 Power Supply Unit 2-3 SECTION 3 INSTALLATION. 3.1 Unpacking 3.2 Station Installation 3.3 Antenna 3.U Loudspeaker 3.5 "Anti-Trip" and "Side Tone" 3.6 Initial Checks OPERATION U.l General U - 1 U.2 SSB Operation U - 1 U.3 A.M. Reception U - 1 U.4 C.W. Reception U - 1, 2 U.5 Q Multiplier U - 2 U.6 Calibration h - 2 U.7 S Meter U - 2 U.8 Muting U - 3 ERVICE INSTRUCTIONS 5-1 General 5-1 £•2 Trouble Analysis 5-1 5*3 Signal Tracing Procedures 5 - 1, 2 5«U Voltage and Resistance Msasurements 5-2 * 5*5 Alignment Procedure 5 - 2, 3 5*6 Pre-Selector 3*5 MHz Band $ - 3, h 5-7 IF Trap 5 - U 5.8 1*55 KHz IF Transformers 5 - U 5«9 V.I.F. Transformers 5 - U, 5 5*10 'S' Ms ter Calibration 5-5 5«11 V.F.O. Calibration 5-5 5.12 U.L.S.B. Switching 5-6 5-13 Pre-Selector 29.5 MHz Band 5-6 5*lU Pre-Selector 21.0 MHz Band 5-6 5«l5 Pre-Selector lU.O MHz Band 5-6 5*16 Pre-Selector 7*0 MHz Band 5-7 5*17 Pre-Selector 1.8 MHz Band 5-7 5.18 Pre-Selector Coil Cores 5-7 5.19 Field Alignment 5-7 SECTION 6 TABLES AND ILLUSTRATIONS TABLE 6.1 Voltage and Resistance Msasurements 6 - 1, 2 6.2 Signal levels 6-3 Fig. 6.1 Station Installation 6.2 Location of Adjustments under Chassis 6.3 Location of Valves and Crystals

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