Apparecchiature informatiche

Cushman Electronics Inc. CE-7 Communications Service Monitor
Produttore:
Cushman Electronics Inc.
Modello: CE-7
Data:
Categoria: Radio Comunicazione
Gruppo: Communications Service Monitor
Descrizione: Multi-Channel FM Communications Monitor
Informazioni:
                                    The Model CE-7 Multi-Channel FM Communications Monitor is
designed to measure the frequency and frequency-modulation
deviation of transmitters and other signal sources. The CE-7
is crystal controlled and can operate on any one of 23
frequencies between 20 MHz and 1150 MHz. Which frequencies
are assigned to the 23 positions is specified by the
customer. Any number of crystals between one and 23 may be
selected and the operation of the instrument is not
compromised if only one or two crystals are installed. The
Cushman Model MCO-6 Multi-Channel Oscillator (accessory)
offers an additional 23 frequencies should the need for
other crystal frequencies arise.

The CE-7 can also generate FM and CW signals within the
frequency limits stated above. The output level of the
generated signal may be adjusted from 0. 1 to 100 microvolts
and provides the capability of determining the sensitivity
of FM communication receivers. Signal generation of up to
ten optional crystal-controlled IF frequencies is available
between 250 kHz and 13. 5 MHz. The output levels of the IF
signals are continuously variable.

The CE-7 must operate with either a Model 301 Oscilloscope
or a Model 302 FM Deviation Meter inserted into the
left-hand plug-in cavity, and a Model 303 Broadband Mixer or
one of the RF plug-ins inserted into the right-hand plug-in
cavity. The combination of the plug-ins is at the discretion
of the customer.

Questi manuali sono disponibili per l'attrezzatura di cui sopra:

Cushman Electronics Inc. -- CE-7 -- Servizio e manuale utente
Nome del file: Cushman-9208-Manual-Page-1-Picture
Tipo manuale: Servizio e manuale utente
Pagine: 96
Dimensioni: 16.29 Mbytes (17078732 Bytes)
Lingua: Inglese
Revisione:
Manuale-ID/numero:
Data:
Qualità: Documento scansionato, la lettura in parte male, non in parte leggibile.
Data di aggiunta:
MD5: 13f5ff5f0449bc9b57dcbfab9b1b31ac
Downloads: 12 dal 07 agosto 2017
Informazioni:
WARRANTY..............................................................................üi

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

1.1
Introduction......................................................................1-1

1.2
Accessories......................................................................1-2

1. 2.1 Plug-In
Units........................................................1-2

1.2.2	External
Instruments..............................................1-3

1.2.3	Auxiliary
Items......................................................1-3

1.3
Specifications....................................................................1-3

SECTION 2 INSTALLATION
........................................................................2-1

2.1	Unpacking and Inspection
....................................................2-1

2.2	Environmental
..................................................................2-1

2.2.1	Temperature
........................................................2-1

2.2.2	RF Fields
............................................................2-1

2.3	Power
Requirements..........................................................2-1

2.4	Warm-up
Requirements......................................................2-1

2.5	Preparation for Reshipment
................................................2-1

SECTION 3 OPERATING
INSTRUCTIONS........................................................3-1

3.1
Introduction......................................................................3-1

3.2	Controls and Indicators
......................................................3-1

3.3	Starting Procedure
............................................................3-1

3.4	Operating Procedures
........................................................3-5

3.4.1	Frequency and Deviation
Measurement......................3-5

3.4.2	CW-Signal Generation
............................................3-6

3.4.3	FM-Signal Generation
............................................3-6

3.4.4	IF-Signal
Generation..............................................3-7

3.4.5	Installation and Removal of
IF-Oscillators..................3-7

3.4.6	Antenna
Installation................................................3-8

3.4.7	Installation and Removal of
Crystals..........................3-8

3.5	Turn-Off
Procedure............................................................3-8

SECTION 4 CIRCUIT
DESCRIPTION...............................................................
4-1

4.1
Introduction......................................................................4-1

4.2	Second IF and Discriminator Board
..........................4-2

4.3	Power-Supply Board
..........................................................4-7

4.4	Frequency Error Meter
Board..............................................4-8

4.	5 Harmonic Generator
Board..................................................4-8

4.6	Multi-Oscillator
Board........................................................4-10

4.7	IF Oscillator
Board............................................................4-12

4.	8 Signal-Generator
Mixer......................................................4-12
SECTION 5 MAINTENANCE
...............................................5-1

5.1
Introduction......................................................................5-1

5.2	Access
............................................................................5-1

5.3
Fuses..............................................................................5-1

5. 4 Adjustment Procedures and
Check........................................5-1

5.4.1	Power-Supply Board, Voltage
Adjustment..................5-2

5.4.2	Crystal-Oscillator
Adjustment..................................5-2

5.4.3	Frequency-Meter Adjustment
..................................5-3

5.4.4	20-dB Fixed-Attenuator Loss
Check..........................5-10

5.	4. 5 Signal-Generation-Output Level
Adjustment................5-11

5.4.6	Signal-Generator-Mixer Input Level Check
................5-11

5.5	Troubleshooting
Procedures................................................5-13

SECTION 6 SCHEMATICS, PARTS LISTS, AND PARTS PICTORIALS
................6-1

6.1
Introduction......................................................................6-1

6.2	Schematics, Parts Lists, Parts Pictorials
............................6-3

6.2.1	Second IF and Discriminator Board
..........................6-3

6.2.2	Power Supply
Board................................................6-7

6.2.3	Frequency Error Meter
Board..................................6-11

6.2.4	Harmonic Generator
Board......................................6-13

6.2.5	Multi-Oscillator
Board............................................6-17

6.2.6	IF Oscillator
Board................................................6-21

6.2.7	IF Oscillator
Board................................................6-23

6.2.8	Signal Generator Mixer
..........................................6-25

6.2.9	Crystal Oven Assembly
..........................................6-27

6.2.10	Main
Chassis........................................................6-31

6.2.11	Front Panel
..........................................................6-35

6.2.12	Rear Panel
..........................................................6-39

6.2.13	Covers and Carrying
Cases......................................6-41

CUSTOMER-COMMENT CARDS

Cushman-9208-Manual-Page-1-Picture
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