KW Communications KW 202 Récepteur
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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.
Manual type:
Service et Manuel de l'utilisateur
Pages:
28
Size:
2.07 Mbytes (2175296 Bytes)
Language:
english
Revision:
Issue 3
Manual-ID:
Date:
Quality:
Document scanné, la lecture en partie mal, en partie illisible.
Upload date:
2014 02 19
MD5:
dd3629b1ab55f3d97f53af980da84e62
Downloads:
574
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
