KW 202 SSB Receiver
Communication Receiver


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KW 202 SSB Receiver

GENERAL DESCRIPTION AND SPECIFICATION


Introduction
The K.W. 202 Receiver has been designed for 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 arid one transistor.

The K.W. 202 has a built-in power unit operating from a 105 - 120, 210 - 240v AC 45-65 Hz AC Supply.

A two speed V.F.0 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.

Specification

BANDS COVERED

1.8 — 2.3 MHz
3.5 — 4.0 MHz
7.0 — 7.5 MHz
14.0 —14.5 MHz
21.0 — 21.5 MHz
28.0 — 28.5 MHz
28.5 — 29.0 MHz
29.0 — 29.5 MHz
29.5 — 30.0 MHz.

STABILITY
With constant input voltage to Receiver better than 200 Hz after warm-up period of 30 minutes.

POWER REQUIREMENTS
105 - 120, or 210 - 240v AC 40 - 65 Hz 80 Watts

RECEPTION MODES
SSB (either sideband selectable) AM CW

ANTENNA INPUT IMPEDANCE
52/75 ohms. V.H.F. S0239 Socket.

SENSITIVITY
Better than 1 uV for 500 mW output.
 

SIGNAL-PLUS-NOISE TO NOISE RATIO
1 V  for 20 dB

KW 202.jpg (23786 bytes)


The Manual Contains the Following

SPECIFICATION 1

GENERAL DESCRIPTION AND SPECIFICATION
Introduction
Specification
Valve and Semi-Conductor Complement

SECTION 2
CIRCUIT DECRIPTI0N

RF and mixer Circuits
Oscillator Circuits
IF and Detector Circuits
Q Multiplier
S Meter
Audio Circuits
Wave change Switch
Pre-Selector
Power Supply Unit

SECTION 3
INSTALLATION

Unpacking
Station Installation
Antenna
Loudspeaker
“Anti-Trip” and “Side Tone”
Initial Checks

SECTION 4
OPERATION

General
SSB Operation
A.M. Reception
C.W. Reception
Q Multiplier
Calibration
S Meter
Muting

SECTION 5
SERVICE INSTRUCTIONS

General
Trouble Analysis
Signal Tracing Procedures
Voltage and Resistance Measurements
Alignment Procedure
Pre-Selector 3.5 MHz Band
IF Trap
455 KHZ IF Transformers
V.I.F. Transformers
‘S’ Meter Calibration
V.F.O. Calibration
U.L.S.B. Switching
Pre-Selector 29.5 MHz Band
Pre-Selector 21.0 MHz Band
Pre-Selector 14.0 MHz Band
Pre-Selector 7.0 MHz Band
Pre-Selector 1.8 MHz Band
Pre-Selector Coil Cores
Field Alignment

SECTION 6
TABLES AND ILLUSTRATIONS

Voltage and Resistance Measurements
Signal Levels

Station Installation
location of Adjustments under Chassis
Location of Valves and Crystals
Circuit Diagram

Manual Circuit and
Operation Instructions
available Details Below
On Paper CD or Download

Click Here


KW 202 SSB Receiver
Manuals are Available Worldwide as a Download on CD or Paper Copy.

Manual containing  34 pages including the Circuit with Component values.

Manual 34 A4 pages worldwide
Download £14.00

Printed Paper Copy or on CD are Plus Postage.

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We do all we can to provide the very best that is available for you.
But in the unlikely event that any data should not be as you expected.
A refund is always available. Kind Regards Allen and Alanna.


Manuals are Available Worldwide as Paper Copy on CD or as a Download

Thank you for your interest. Allen and Alanna G0RIT
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Revised: October 29, 2013