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IFR A-7550 Spectrum analyzer
Manufacturer:
Model:
A-7550
Date:
1985
Class:
Type:
SubType:

Information

The A-7550 Spectrum Analyzer is a microprocessor-control1ed } superheterodyne unit which offers ease of operation, while including the most needed features of a spectrum Analyzer. 1-2 STANDARD FEATURES The A-7550 Spectrum Analyzer covers a range from 100 kHz to 999.9999 MHz at levels of up to +30 dBm. Signal levels may be directly read on the CRT in either dBm* dByW, dBV, dBmV or dByV. Signals can be stored, recalled, plotted or used for comparison purposes. Standard A-7 5 5 0 input impedance is 50Ω. All operating parameters are set via keyboard o pera ti on . 1-2-1 DISPLAY METHOD The A-7550 display is fully digitized. A VRS™ (Vertical Raster Scan) method is used to form the display. The display has'390 horizontal discrete points and 480 vertical discrete points. Full scan range is from 0 Hz to 1 GHz. Users familiar with other spectrum analyzers may be used to seeing the zero hertz marker displayed anywhere on the display. On the A-7550 the zero hertz marker does not move to the right of the left edge of the display. The microprocessor does not allow a setting that would theoretically allow a "negative11 frequency to the left of the zero hertz marker. The user should note this characteristic when becoming familiar with the A-7550,

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User Manual
Manual type:
User Manual
Pages:
136
Size:
4.28 Mbytes (4483849 Bytes)
Language:
english
Revision:
Manual-ID:
1002-530 1-000
Date:
unknown
Quality:
Scanned document, all readable.
Upload date:
25 May 2015
MD5:
796edd492b35ccdb2c30e8bdbe332420
Downloads:
1131

Information

This manual contains instructions for operating the A-7550 Spectrum Analyzer. It is strongly recommended that the operator be thoroughly familiar with Sections 1 through 3 of this manual before attempting to operate the A-7550, This revision of the A-75 5 0 Operation Manual includes extensive modifications, which include Software Version 2.40 and 3.40. Versions 2.40 and 3.40 add the auto feature to the Plotter Function and enhances Bandwidth Optimization. ORGANIZATION This Operation Manual is divided into the following major sections: SECTION 1 - INTRODUCTION Provides a brief introduction to the A-7550 including standard and optional features. SECTION 2 - INSTALLATION Provides a step-by-step procedure for preparing the A-7550 for operation. SECTION 3 - DESCRIPTION OF CONTROLS, CONNECTORS & INDICATORS Identifies and functionally describes all A-7550 controls, connectors and indicators. SECTION 4 - MENU OPERATION Provides a functional description of A-7550 menu operation and a detailed description of each menu. SECTION 5 - GPIB OPERATION Provides instructions for A-7550.GPIB Interface. SECTION 6 - RS-232 OPERATION Provides instructions for A-7550.RS-232 Interface. SECTION 7 - QUASI-PEAK OPERATION Provides instructions for Quasi-Peak operation. The Appendices of this manual contain A-7550 specifications, and some procedures which are not required for all A-7550 users.

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Service Manual
Manual type:
Service Manual
Pages:
274
Size:
21.01 Mbytes (22031476 Bytes)
Language:
english
Revision:
Manual-ID:
1002-5301-100
Date:
unknown
Quality:
Scanned document, all readable.
Upload date:
19 January 2014
MD5:
90f8d6fe0bd019e4be9c0c39dfb5bbd9
Downloads:
1623

Information

This manual contains maintenance instructions for the A-7550 Spectrum Ana 1yzer. The i nformati on in this manua1 wi11 enable the techn i ci an to 1. Service, test, repair or replace any major assembly or modul within the Test Set. 2. Maintain the operating condition of the set to expected performance standards. 3. Understand the principles of operation as they relate to the overall operation of the set as well as to individual circuits. ORGANIZATION This manual is divided into six major sections: SECTION 1 - INTRODUCTION Briefly describes the electrical and mechanical configuration of the A-7550» intended to familiarize the technician with the overall structure of the set. SECTION 2 - THEORY OF OPERATION Describes the A-7550 circuit theory on three levels of complexity, a simplified overview, a functional theory of interactive modules, and a detailed theory of each module. Appropriate block diagrams accompany eachdiscussion. SECTION 3 - PERFORMANCE EVALUATION Contains "covers on" functional checkout procedures for evaluating the performance of the A-7550 in each of its modes of operation and major functions. SECTION 4 - CALIBRATION Contains step-by-step calibration procedures for use at normal calibration intervals or after making repairs or replacements. SECTION 5 - TECHNICAL DATA Contains component layout drawings for all mechanical assemblies, PC Board assemblies, interconnect diagrams, circuit schematics, waveforms and charts reflecting voltage levels keyed to test points.

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John Islessays...

WOW! after so many searches, I found your site.

Thank you, will return. How do I donate?

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Admin
Oliversays...

Hi John

If you want to donate, you can do it easily with the "donate" button at the end of each manual section.

Thanks Oliver

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