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KW Communications KW 202 Receiver
Hersteller:
KW Communications
Modell: KW 202
Datum: 1973
Kategorie: Funk und Kommunikation
Gruppe: Receiver
Beschreibung:
Informationen:
                                    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.

Folgende Anleitungen sind hier verfügbar:

KW Communications -- KW 202 -- Service- und Bedienungsanleitung
Dateiname: KW-5486-Manual-Page-1-Picture
Dokumenttyp: Service- und Bedienungsanleitung
Seitenanzahl: 28
Dateigröße: 2.07 Mbytes (2175296 Bytes)
Sprache: Englisch
Revision: Issue 3
Dokument-ID/Nummer:
Datum: April 1973
Qualität: Gescanntes Dokument, teilweise schwer oder teilweise nicht zu lesen.
Upload Datum:
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Informationen:
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

KW-5486-Manual-Page-1-Picture
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