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Tektronix TR 502 Instruction Manual page 3

Tracking generator
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Section 1—TR 502
Introduction
The abbreviations, graphic symbols, and logic sym¬
bology used in the text and diagrams of this manual are in
accord and based on ANSI Y1.1-1972, ANSI Y32,2-1970,
and ANSI Y32.14-1973 (American National Standard
institute. 345 East 47 Street; New York, N Y. 10017).
Change information has been integrated into the
manual by goldenrod insert pages at the back of the
manual and page revision. Original pages are identified by
the symbol @ and revised pages are identified by a
revision date in the lower inside corner of the page. If the
serial number of your instrument is lower than the one on
the title page, the manual contains revisions that may not
apply to your instrument. History or backlog information
aii previously applicable to produced products with the
updated data is integrated when the page or diagram is
revised. The following describes the sections and informa¬
tion provided in this manual.
Section 1—General Information and Specifications;
Contains instrument description, electrical specifications,
environmental characteristics, accessories, installation,
and repackaging for shipment instructions.
Section 2—Operating Instructions: Information relative
to operating and checking the instrument operation.
Section 3—Performance Check: Procedure to check
the operational performance and electrical specifications
of the instrument. Two-part section provides an incoming
inspection type check and a detailed electrical perfor¬
mance verification.
Section 4—Calibration Procedure: Describes test
equipment setup and adjustment procedures required to
calibrate the instrument.
Section 5—Circuit Description: Provides basic and
general circuit analysis that may be useful when servicing
or operating the instrument.
Section
6—Maintenance
Instructions:
Describes
routine and corrective maintenance procedures with
detailed instructions for replacing assemblies, sub-
assemblies, and individual components. An exploded
drawifig is pari of Section 10.
Section 7—Options and Modifications; Provides data
on production options available.
Section 8 -Electrical Parts List: Provides information
necessary to order replaceable parts and assemblies
related to the electrical functions of the instrument.
Section
9—Diagrams:
Provides
functional
block
diagram and detailed circuit schematics. Located adja¬
cent to the diagram (usually on the back of the preceding
diagram) are pictorial layout drawings which show sub¬
assembly and component locations. Voltage and signal
level information, if applicable, is included to aid in
troubleshooting.
Section 10—Mechanical Parts List, Exploded Drawings
and Accessories: Provides information necessary to order
replaceable mechanical parts The Parts List is cross-
referenced to the Electrical Parts List when appropriate.
Exploded drawing shows sequence of assembly and
identifies assemblies.
Changes and Corrections; Provides updating informa¬
tion for the manual in the form of inserts. These inserts are
incorporated into the manual text and diagrams when the
manual is updated.
Description
The TR 502 Tracking Generator operates with the7L13
or 7L12 Spectrum Analyzerto provide a calibrated rf signal
for swept frequency applications from 100 kHz to
1.8 GHz. The output frequency of the TR 502 can be
adjusted to track the spectrum analyzer frequency within
10 Hz. The TR 502, a two-wide unit compatible with the
TM 500 Modular Series instruments, is normally used with
the TM 503 (Option 7) Power Module. This permits the
optional use of a digital counter such as the DC 502
Option 7. A bright dot, on the spectrum display, identifies
the frequency location on the sweep that is indicated by
the counter. Higher range counters to 1.8 GHz can be
used by connecting their inputtotheTR 502 AUX RF OUT
connector.
1-1

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