Informations sur l'appareil:

BK Precision 2630 Spectre
Fabricant:
BK Precision
Modèle: 2630
Date:
Catégorie: Mètres
Groupe: Spectre
Description:
Information:
                                    General
The spectmm analyzer permits the detection of spectrum
components of electrical signals in the frequency range of
0.15 to 1050 MHz for Models 2625 and 2630 and 0.15 to 500
MHz for Models 2615 and 2620. The detected signal and its
content have to be repetitive, in contrast (o an
oscilloscope operated in Yt mode, where the amplitude is
displayed on the time domain, the spectrum analyzer displays
amplitude on the frequency domain (YD. The individual
spectrum components of “a signal" become visible on a
spectrum analyzer. The oscilloscope would display the same
signal as one resulting waveform,
Models 2625 and 2630
The spectrum analyzer works according to the triple superhet
receiver principle. The signal to be measured (fin = 0.15
MHz to 1050 MHz) is applied to the 1st mixer where it is
mixed with the signal of a variable voltage controlled
oscillator (fi.o 1350 MHz
- 2350 MHz). This oscillator is called the 1st LO (locat
oscillator). The diffcrence between the oscillator and the
input frequency {fL.o - fus - 1st IF) is the first
intermediate frequency, which passes through a waveband
filter tuned to a center frequency of 1350 MHz. It then
enters an amplifier, and this is followed by two additional
mixing stages, oscillators and amplifiers. The second IF is
29.875 MHz and the third is 2.75 MHz. In the third IF stage,
the signal can be selectively transferred through a filter
with 400 kHz or 20 kHz bandwidth before arriving a! an AM
demodulator. The logarithmic ompuu video signal) is
transferred directly, or via a low pass filter to another
ampiifier. This amplifier output is connected to the Y
deflection plates of the CRT.
Models 2615A and 2620A
The spectmm analyzer works according to the tnpie superhet
receiver principle. The signal to be measured (fm = 0.5 MHz
to 500 MHz) is applied to the 1st mixer where it is mixed
with the signal of a variable voltage controlled oscillator
(ft.o6!0 MHz
- 1 1 10 MHz). This oscillator is called the 1st LO (local
oscillator). The difference between the oscillator and the
input frequency (ft.o - f>n = 1st IF) is the first
intermediate frequency, which passes through a waveband
filter tuned to a center frequency of 609.5 MHz. it then
enters an amplifier, and this is followed by two additional
mixing stages, oscillators and amplifiers. The second IF is
29.5 MHz and the third is 2.9 MHz. in the third IF stage,
the signal can be selectively transferred through a filter
with 250 kHz or 20 kHz bandwidth before arriving at an AM
demodulator. The logarithmic output (video signal) is
transferred directly, or via a low pass filter to another
amplifier. This amplifier output is connected to the Y
deflection plates of the CRT.
The X deflection is performed with a ramp generator voltage.
This voltage can also be superimposed on a dc voltage which
allows for the control of 1st LO. The spectrum analyzer
scans a frequency range depending on the ramp height. This
span is
determined by the scan width setting. In ZERO SCAN mode only
the direct voltage controls the 1st LO.
Models 2620A and 2630 each include a tracking generator.
This generator provides sine wave voltages within the
frequency range of 0.! to 1050 MHz for Model 2630 and 0. i
to 500 MHz for Model 2620A. The tracking generator frequency
is determined by the first oscillator (1st LO) of the
spectrum analyzer section. Spectrum analyzer and tracking
generator are frequency synchronized.

Ces manuels sont disponibles pour les équipements ci-dessus :

Type de document: Manuel de l'utilisateur BKPrecision-8526-Manual-Page-1-Picture
Nombre de pages: 23
Taille du fichier: 1.65 Mbytes (1727351 Bytes)
langue: Anglais
Révision:
Document ID/Numéro:
Date:
qualité: Document scanné, tous les lisible.
Chargé sur:
MD5: dea557603e5ac5665c01de23738c5abf
Téléchargements: 192 depuis 24 janvier 2017
Information:
TEST INSTRUMENT SAFETY.........Inside front cover
SPECIFICATIONS.................................................................3
OPTIONAL ACCESSORIES
.............................................4
GENERAL INFORMATION.......................................... 5
Symbols.................................................................................5
Tilt handle
............................................................................5
Safety.....................................................................................
5
Operating Conditions
.........................................................6
Maintenance
......................................................................
6
Selecting the Line Voltage ..............................
,.............6
INTRODUCTION
.................................................................7
Genera].................................................................................7
Operating
Considerations....................................................
7
CONTROLS AND INDICATORS .....................................8
CALIBRATION...................................................................13
Vertical
Calibration...........................................................
13
Horizontal
Calibration................................................. 13
Page INTRODUCTION TO SPECTRUM ANALYSIS ... IS
General
.................................................................................15
Types of Spectrum Analyzers
........................................15
Spectrum Analyzer
Requirements.................................16
Frequency Measurements .
,..........................................i6
Resolution
.........................................................................16
Sensitivity............................................................................!7
Video
Filtering...................................................................17
Spectrum Analyzer Sensitivity
......................................17
Frequency Response
........................................................ 18
Tracking
Generators.........................................................18
APPENDIX —dBm CONVERSION................................20
CUSTOMER
SUPPORT..................................................21
INSTRUMENT REPAIR SERVICE .............................21
WARRANTY SERVICE INSTRUCTIONS..................22
LIMITED ONE-YEAR WARRANTY...........................23
BKPrecision-8526-Manual-Page-1-Picture


Type de document: Manuel de l'utilisateur BKPrecision-8527-Manual-Page-1-Picture
Nombre de pages: 28
Taille du fichier: 1.14 Mbytes (1193155 Bytes)
langue: Anglais
Révision:
Document ID/Numéro: 480-780-9-001
Date:
qualité: Document scanné, tous les lisible.
Chargé sur:
MD5: ef52e1ff08e3b886d2f8659c627e2d12
Téléchargements: 172 depuis 24 janvier 2017
Information:
TEST INSTRUMENT SAFETY.....Inside front cover
SPECIFICATIONS...............................................................5
OPTIONAL ACCESSORIES...........................................6
GENERAL INFORMATION............................................7
Symbols
................................................................................7
Tilt
handle.............................................................................7
Safety......................................................................................7
Operating
Conditions..........................................................8
Maintenance..........................................................................8
Selecting the Line
Voltage................................................8
INTRODUCTION.................................................................9
General..................................................................................9
Operating
Considerations.................................................9
CONTROLS AND INDICATORS................................10
CALIBRATION..................................................................15
Vertical
Calibration..........................................................15
Horizontal
Calibration.....................................................15
Page
INTRODUCTION TO SPECTRUM ANALYSIS.... 17
General................................................................................17
Types of Spectrum
Analyzers.......................................17
Spectrum Analyzer Requirements................................18
Frequency
Measurements...............................................18
Resolution...........................................................................18
Sensitivity...........................................................................19
Video
Filtering..................................................................19
Spectrum Analyzer
Sensitivity......................................19
Frequency
Response........................................................
20
Tracking
Generators........................................................
20
APPENDIX-dBm CONVERSION...............................22
CUSTOMER
SUPPORT...................................................23
INSTRUMENT REPAIR SERVICE...........................23
WARRANTY SERVICE INSTRUCTIONS..............24
LIMITED ONE-YEAR WARRANTY.........................25
BKPrecision-8527-Manual-Page-1-Picture


Comments (0)

No comments yet. Be the first!

Add Comment

* Required information
1000
Captcha Image
Powered by Commentics