Información del equipo:

Drake DSR-1 Receptor
Fabricante:
Drake
Modelo: DSR-1
Fecha:
Categoría: Radio, Comunicación
Grupo: Receptor
Descripción:
Información:
                                    This Receiver is a commercial grade communications Receiver
employing the most up to date solid state devices and
circuitry. It provides continuous coverage from 10 kHz to 30
MHz with the received frequency displayed on a digital
readout to the closest 100 Hz. All frequency injections of
the Receiver are controlled by a phase-locked digital
synthesizer which allows incremental frequency selection in
10, 1 and 0.1 MHz steps. The remaining 0 to 0.1 MHz is
continuously adjustable by a highly stable variable
Oscillator from the fine tuning knob on the front panel.
Modular construction on easily accessible printed circuit
boards is used throughout this Receiver. The generous use of
dual gate MOS-FET transistors in this receiver’s circuitry
contributes to its superior intermodulation, wide AVC
dynamic range and overload performance. The front panel
controls allow the operator to select frequency, AM or SSB
detector, I.F. bandwidth, AF gain, BFO pitch, fast or normal
AVC, manual RF gain, and Drake’s highly effective series
gate noise blanker. Independent sideband (ISB) is a built-in
feature of the Receiver. Separate I.F. crystal filters, I.F.
amplifier, detector and audio output circuits allow two
simultaneous communications channels (USB and LSB) to be
employed on one frequency assignment,
doubling the information receiving capacity. The Receiver
may be powered from 115 or 230 VAC, 50 to 420 Hz. An
inverter is available, as an accessory, for operating the
Receiver from a 12 or 24 VDC source.

Estos manuales están disponibles para el equipo anterior:

Tipo de manual: Servicio y Manual del usuario Drake-9252-Manual-Page-1-Picture
Páginas: 104
Tamaño: 5.94 Mbytes (6231771 Bytes)
Idioma Inglés
Revisión:
Manual-/ número de identificación:
Fecha:
Calidad: Documento Scaneds, en parte leyendo mal, no parcialmente legible.
Fecha de carga:
MD5: 5dc3df14cd43f27f43cb9985bf302ef5
Descargas: 168 desde 09 agosto 2017
Información:
This manual is presented in 5 chapters and is arranged for
the convenience of the operator and service technician as
follows:

Chapter I Introduction (Self explanatory) Chapter II
Preparation for Use. Describes the procedures to be followed
prior to operation.

Chapter III Operation. Presents step-by-step front panel
settings for optimum reception in each of the various modes.

Chapter IV Theory of Operation. Describes all critical
circuits and networks and references pertinent schematics
and block diagrams.

Chapter V Maintenance. Provides sufficient information for
servicing by an experienced technician including illustrated
parts lists, schematics, and critical disassembly/reassembly
instructions.

CHAPTER I
INTRODUCTION ... 1-1

1-1. GENERAL
DESCRIPTION ... 1-1

1-2.	MANUAL
COVERAGE ... 1-1

SPECIFICATIONS ... 1-2

CHAPTER II PREPARATION FOR
USE ... 2-1

2-1.
UNPACKING ... 2-1

2-2.
LOCATION ... 2-1

2-3. POWER
REQUIREMENTS ... 2-1

2-4.
FUSES ... 2-1

2-5.
ANTENNAS ... 2-1

2-6.
SPEAKERS ... 2-1

2-7.
HEADPHONES ... 2-1

2-8.
MUTE ... 2-1

2-9. IF
OUTPUT ... 2-1

2-10. ISB
WIRING ... 2-2

2-11. LINE AMP
OUTPUT ... 2-2

2-12.
GROUND ... 2-2

2-13.
REPACKING ... 2-2

CHAPTER III
OPERATION ... 3-1

3-1.	CONTROLS AND
DISPLAYS ... 3-1

3-2. OPERATING PROCEDURES ... 3-1

3-5. SINGLE OR DOUBLE SIDEBAND SUPPRESSED CARRIER
RECEPTION ... 3-1

3-6. CW
RECEPTION ... 3-1

FRONT PANEL CONTROLS ... 3-4

3-7. AM RECEPTION (DOUBLE
SIDEBAND) ... 3-4

3-8.	INDEPENDENT SIDEBAND (ISB)
RECEPTION ... 3-4

CHAPTER IV THEORY OF
OPERATION ... 4-1

4-1.
GENERAL ... 4-1

4-7. RF
AMPLIFIER ... 4-2

4-8. FIRST
MIXER ... 4-2

4-9. SECOND
MIXER ... 4-2

4-10. FIRST IF
AMPLIFIER ... 4-3

4-11. NOISE
BLANKER ... 4-3

4-12.	THIRD MIXER (COMMUNICATIONS CHANNEL) AND SECOND IF
Amplifier . .	4-3
4-13.	THIRD MIXER (ISB CHANNEL) AND SECOND IF
AMPLIFIER ... 4-3

4-14.	FILTER
AMPLIFIER ... 4-4

4-15.	PRODUCT DETECTOR (COMMUNICATIONS
CHANNEL) ... 4-4

4-16.	PRODUCT DETECTOR AUDIO BUFFER (COMMUNICATIONS
CHANNEL)  ... 	4-4

4-17.	AM DETECTOR AND AUDIO Amplifier (COMMUNICATIONS
CHANNEL). . . .	4-4

4-18.	PRODUCT DETECTOR (ISB
CHANNEL) ... 4-4

4-19.	PRODUCT DETECTOR AUDIO BUFFER (ISB
CHANNEL) ... 4-4

4-20.
BFO ... 4-4

4-21.	AUDIO LINE Amplifier (COMMUNICATIONS
CHANNEL) ... 4-4

4-22.	AUDIO LINE Amplifier (ISB
CHANNEL) ... 4-4

4-23	AUDIO POWER OUTPUT
AMPLIFIER ... 4-5

4-24.	FREQUENCY
SYNTHESIZER ... 4-5

4-25.	LOCKED Oscillator INJECTION
(VCO) ... 4 5

4-32.	FREQUENCY
READOUT ... 4-7

4-37.	FREQUENCY
COUNTER ... 4-8

4-38.	COUNTER OVERFLOW AND
UNDERFLOW ... 4-9

4-39.	POWER
SUPPLY ... 4-10

CHAPTER V
MAINTENANCE ... 5-1

5-1.	SERVICE
DATA ... 5-1

5-2.	DISASSEMBLY AND
REASSEMBLY ... 5-1

5-3.	SYNTHESIZER/RF
ASSEMBLIES ... 5-1

5-4.	COUNTER NO.
1 ... 5-1

5-5.	VFO AND DIAL
LOCK ... 5-2

5-6.	INTEGRATED
CIRCUITS ... 5-2

5-7.	TEST
EQUIPMENT ... 5-2

5-8.	REPAIR AND
REPLACEMENT ... 5 2

5-9.	PARTS ORDERING
INFORMATION ... 5-2

5-10.	ALIGNMENT AND
CALIBRATION ... 5-4

5-11.	IF SECTION
ALIGNMENT ... 5-5

5-12.	IF ALIGNMENT - NORMAL
CHANNEL ... 5-5

5-13.	IF ALIGNMENT -
ISB ... 5-5

5-14.	NOISE BLANKER
ALIGNMENT ... 5-5

5-15.	PRODUCT DETECTOR (BFO) COIL
ALIGNMENT ... 5-4

5-16.	VARIABLE BFO
ALIGNMENT ... 5-4

5-17.	AUDIO Amplifier
ALIGNMENT ... 5-5

5-18.	LINE Amplifier
ALIGNMENT ... 5-5
5-19.	SYNTHESIZER SECTION
ALIGNMENT ... 5-5

5-20.	VCO
ALIGNMENT ... 5-5

5-21.	BALANCED MIXER
TUNING ... 5-6

5-22.	RF Amplifier
ALIGNMENT ... 5-6

5-23.	20 MHz LOCKED Oscillator
ALIGNMENT ... 5-11

5-24.	25.05 MHz TRAP
ADJUSTMENT ... 5-11

5-25.	5.05 MHz TRAP
ADJUSTMENT ... 5-11

5-26.	15 VOLT Power Supply
SETTING ... 5-11

5-27.	S METER
CALIBRATION ... 5-11

5-28.	VFO
CALIBRATION ... 5-11

5-29.	FREQUENCY
CALIBRATION ... 5-12

5-30.	NOISE BLANKER
ADJUSTMENT ... 5-12

5-31.	MISCELLANEOUS
TESTS ... 5-12

5-32.	PARTS
LISTS ... 5-12
Drake-9252-Manual-Page-1-Picture


Comments (0)

No comments yet. Be the first!

Add Comment

* Required information
1000
Captcha Image
Powered by Commentics