Attrezzatura informazioni:

Wavetek 753A Altro
Produttore:
Wavetek
Modello: 753A
Data: 1987
Categoria: Strumenti di misura
Gruppo: Altro
Descrizione: BRICKWALL FILTERS
Informazioni:
                                    The Models 751 A, 752A and 753A are programmable Brickwall™
Filters offering near-ideal passband and stopband
characteristics.
The instruments employ 7th-order (7 poles and 6 zeroes)
Elliptic or Cauer filters with design values of0.3dBpeak-
to-peak passband ripple and 85 dB stopband attenuation. The
transition from passband to stopband has a 115 dB/octave
rolloff rate. For low pass response, the stopband is at 1.7
x cutoff frequency; high pass response, the stopband is 0.6
x cutoff for frequency.
The cutoff frequency may be programmed from 10 Hz to 99 kHz
with 2-digit resolution and 1 Hz to 9 Hz with
1-digit resolution. Pre-filter, and (where available)
postfilter gain may be programmed in 10 dB steps, up to the
maximum available.
These instruments are extremely valuable in signal-
processing applications for band-limiting prior to sampling
to prevent aliasing, or for separating a narrow spectrum of
interest from noise or other interfering signals. In
addition to the extremely Sharp filtering, they provide
programmable low noise amplification for applications
involving low-level signals and overload indicators to
ensure operation within their linear dynamic range.
The basic differences of the three models are summarized here.
Model 753A is a dual-channel instrument which
consists of independent high-pass and low-pass sections. The
two sections may be used independently, cascaded for band
pass response, or paralleled for band reject response. Each
section has prefilter gain of up to 40 dB and input overload
indicators. The low-pass section has selectable ac/dc input
coupling.

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

Tipo manuale: Servizio e manuale utente Wavetek-6393-Manual-Page-1-Picture
Pagine: 92
Dimensioni: 13.80 Mbytes (14473940 Bytes)
Lingua: Inglese
Revisione: revised
Manual-ID/Number:
Data: marzo 1987
Qualità: Documento scansionato, tutto leggibile.
Data di caricamento:
MD5: ec8276e51e9092d6ff2d7b7f7d197719
Download: 876 dal 17 novembre 2014
Informazioni:
GENERAL DESCRIPTION
1.1
INTRODUCTION ... 
1.1.1 Model
751A ... 
1.1.2 Model
752A ... 
1.1.3 Model
753A ... 
1.2
OPTIONS ... 
1.3
DEFINITIONS ... 
1.4
SPECIFICATIONS ... 
1.4.1 Cutoff
Frequency ... 
1.4.2 Gain
(Pre-filter) ... 
1.4.3 Filter
Characteristics ... 
1.4.4 Input
Characteristics ... 
1.4.5 Output
Characteristics ... 
1.4.6
General ... 
1.4.7
Options ... 
INITIAL PREPARATION
2.1
INSPECTION ... 
2.2 MECHANICAL INSTALLATION ... 
2.3 ELECTRICAL INSTALLATION ... 
2.3.1 Power
Connection ... 
2.3.2 Signal
Connection ... 
2.3.3 GPIB
Option ... 
2.3.4 BCD
Option ... 
OPERATION
3.1
INTRODUCTION ... 
3.2 CONTROLS AND INDICATORS ... 
3.3 TYPICAL OPERATING PROCEDURES ... 
3.3.1 Model
751A ... 
3.3.2 Model
752A ... 
3.3.3 Model
753A ... 
3.4 REMOTE PROGRAMMING: BCD Interface
3.5 REMOTE PROGRAMMING: GPIB Interface
3.5.1
Introduction ... 
3.5.2 Device Address Code ... 
3.5.3
Initialization ... 
3.5.4 Listen
State ... 
3.5.5 Sending
Data ... 
CIRCUIT DESCRIPTION
4.1
INTRODUCTION ... 
4.2 MODEL
751A ... 
4.3 MODEL
752A ... 
4.4 MODEL
753A ... 
4.5 ELLIPTIC FILTERS ... 
CALIBRATION
5.1 FACTORY
REPAIR ... 
5-1
5.2
CALIBRATION ... 
5-1
SECTION 6 TROUBLESHOOTING
6.1 FACTORY
REPAIR ... 
6-1
6.2
TROUBLESHOOTING ... 
6-1
6.2.1 Filter
Troubleshooting ... 
6-1
6.2.2 Optional GPIB Interface
Troubleshooting ...  6-1
SECTION 7 PARTS AND SCHEMATICS
7.1
DRAWINGS ... 
7-1
7.2
ADDENDA ... 
7-1
7.3 ORDERING
PARTS ... 
7-1
Wavetek-6393-Manual-Page-1-Picture


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