Giga-tronics GT-1000A Operation Manual
Giga-tronics GT-1000A Microwave Power Amplifier
Operation Manual
GT-1000A Microwave Power Amplifier
Operation Manual, Part Number 34672, Rev. C, March 2011
Giga-tronics GT-1000A Microwave Power Amplifier
Warranty
Giga-tronics GT-1000A Series instruments are warranted against
defective materials and workmanship for one year from date of
shipment. Giga-tronics will at its option repair or replace
products that are proven defective during the warranty period.
This warranty DOES NOT cover damage resulting from improper
use, nor workmanship other than Giga-tronics service. There is
no implied warranty of fitness for a particular purpose, nor is
Giga-tronics liable for any consequential damages. Specification
and price change privileges are reserved by Giga-tronics.
All technical data and specifications in this publication are subject to change without prior notice and do not
represent a commitment on the part of Giga-tronics, Incorporated.
© 2011 Giga-tronics Incorporated. All rights reserved. Printed in the U.S.A.
CONTACT INFORMATION
Giga-tronics, Incorporated
4650 Norris Canyon Road
San Ramon, California 94583
Telephone: 800.726.4442 (only within the United States)
925.328.4650
Fax: 925.328.4700
On the Internet: www.gigatronics.com
Page ii Operation Manual, Part Number 34672, Rev. C, March 2011
Giga-tronics GT-1000A Microwave Power Amplifier
Regulatory Compliance Information
This product complies with the essential requirements of the following applicable European Directives,
and carries the CE mark accordingly.
89/336/EEC and 73/23/EEC EMC Directive and Low Voltage Directive
EN61010-1 (1993) Electrical Safety
EN61326-1 (1997) EMC – Emissions and Immunity
Manufacturer’s Name: Manufacturer’s Address
Giga-tronics, Incorporated 4650 Norris Canyon Road
San Ramon, California 94583
U.S.A.
Type of Equipment: Model Series Number
Microwave Power Amplifier GT-1000A
Model Numbers:
Not applicable
Declaration of Conformity on file. Contact Giga-tronics at the following;
Giga-tronics, Incorporated
4650 Norris Canyon Road
San Ramon, California 94583
Telephone: 800.726.4442 (only within the United States)
925.328.4650
Fax: 925.328.4700
Operation Manual, Part Number 34672, Rev. C, March 2011 Page iii
Giga-tronics GT-1000A Microwave Power Amplifier
TPCI Number
TPCI Issue Date
Date Entered
Comments
Record of Changes to This Manual
Use the table below to maintain a permanent record of changes to this document. Replacement pages will be
issued as a TPCI (Technical Publication Change Instruction), and will be
Page iv Operation Manual, Part Number 34672, Rev. C, March 2011
Giga-tronics GT-1000A Microwave Power Amplifier
Table of Contents
CHAPTER 1 SAFETY AND MANUAL CONVENTIONS ........................................................................................................ 1
1.1 Personal Safety Alert ....................................................................................................................................... 1
1.2 Equipment Safety Alert .................................................................................................................................... 1
1.3 Notes ................................................................................................................................................................ 1
1.4 Before Applying Power .................................................................................................................................... 1
1.5 Electrical Safety Precautions ........................................................................................................................... 2
1.6 Important Operating Precautions ................................................................................................................... 2
CHAPTER 2 INTRODUCTION .................................................................................................................................... 3
2.1 Overview .......................................................................................................................................................... 3
2.1.1 Features and Benefits of the GT-1000A Microwave Power Amplifier ..................................................... 3
2.3 Controls, Indicators, and Connectors .............................................................................................................. 4
2.3.1 GT-1000A Front Panel Description ........................................................................................................... 5
2.3.2 GT-1000A Rear Panel Description ............................................................................................................ 6
2.3.3 Replace the Fuse ...................................................................................................................................... 7
2.4 Receiving and Inspection ................................................................................................................................. 8
2.5 Prepare the GT-1000A for Use ........................................................................................................................ 9
2.5.1 Cooling ...................................................................................................................................................... 9
2.5.2 AC Power Requirements........................................................................................................................... 9
2.6 Shipping, Repair, and Calibration .................................................................................................................. 10
2.6.1 Shipping the GT-1000A ........................................................................................................................... 10
2.6.2 Repairs .................................................................................................................................................... 10
2.6.3 Calibration .............................................................................................................................................. 10
CHAPTER 3 OPERATE THE GT-1000A ..................................................................................................................... 11
3.1 Operating Safety and Instructions ................................................................................................................. 11
3.2 Operator’s Maintenance ............................................................................................................................... 12
3.2.1 Equipment and Materials ....................................................................................................................... 12
CHAPTER 4 PERFORMANCE VERIFICATION ................................................................................................................ 13
4.1 Specifications ................................................................................................................................................. 13
4.2 Performance Verification .............................................................................................................................. 16
4.2.1 Equipment and Materials ....................................................................................................................... 16
4.2.2 GT-1000A Performance Verification Setup ............................................................................................ 16
APPENDIX A OPTIONS ......................................................................................................................................... 19
Operation Manual, Part Number 34672, Rev. C, March 2011 Page v
Giga-tronics GT-1000A Microwave Power Amplifier
List of Tables
Table 1: GT-1000A Front Panel Controls, Indicators, and Connections .................................................................... 5
Table 2: GT-1000A Rear Panel Controls, Indicators, and Connections ..................................................................... 6
Table 3: Replace the GT-1000A Line Fuse ................................................................................................................. 7
Table 4: Receiving and Inspection of the GT-1000A .................................................................................................. 8
Table 5: GT-1000A AC Power Specifications ............................................................................................................. 9
Table 6: Operate the GT-1000A ............................................................................................................................... 11
Table 7: Cleaning the GT-1000A .............................................................................................................................. 12
Table 8: General Performance ................................................................................................................................. 13
Table 9: GT-1000A RF Output Power ...................................................................................................................... 13
Table 10: Gain Flatness ............................................................................................................................................ 14
Table 11: VSWR ....................................................................................................................................................... 14
Table 12: General Specifications ............................................................................................................................. 14
Table 13: AC Fuse .................................................................................................................................................... 15
Table 14: Additional Specifications ......................................................................................................................... 15
Table 15: GT-1000A Performance Verification Procedure ...................................................................................... 17
Table 16: GT-1000A Performance Verification Datasheet ...................................................................................... 18
Table 17: GT-1000A Options ................................................................................................................................... 19
List of Figures
Figure 1: GT-1000A Front Panel ................................................................................................................................ 4
Figure 2: Front Panel Indicators ................................................................................................................................ 4
Figure 3: GT-1000A Rear Panel .................................................................................................................................. 4
Figure 4: GT-1000A Fuse Holder ................................................................................................................................ 7
Figure 5: GT-1000A Performance Verification Setup .............................................................................................. 16
Page vi Operation Manual, Part Number 34672, Rev. C, March 2011
Giga-tronics GT-1000A Microwave Power Amplifier Safety and Manual Conventions
WARNING
CAUTION
Chapter 1 Safety and Manual Conventions
This manual contains conventions regarding safety and equipment usage as described below.
1.1 Personal Safety Alert
WARNING: Indicates a hazardous situation which, if not avoided, could result in death
or serious injury.
1.2 Equipment Safety Alert
CAUTION: Indicates a situation which can damage or adversely affect the GT-1000A or
associated equipment.
1.3 Notes
Notes are denoted and used as follows:
NOTE: Highlights or amplifies an essential operating or maintenance procedure, practice, condition or
statement.
Review this manual to become familiar with the instrument safety markings and instructions before operation.
This product is a Safety Class I instrument (provided with a protective earth terminal).
1.4 Before Applying Power
Verify that the product is set to match the available line voltage and the correct fuse is installed.
See Table 13 on page 15.
Operation Manual, Part Number 34672, Rev. C, March 2011 Page 1
Safety and Manual Conventions Giga-tronics GT-1000A Microwave Power Amplifier
CAUTION
WARNING
1.5 Electrical Safety Precautions
An uninterruptible safety earth ground must be provided from the main power source to the GT-1000A.
Any interruption of the protective ground conductor (internal or external to the instrument) or
disconnecting the protective earth terminal will cause a potential shock hazard that could result in personal
injury.
Grounding a single conductor of a two conductor outlet is insufficient protection. Additionally, verify that a
common ground exists between the unit under test, any additional test equipment, and this instrument
prior to energizing any unit.
Whenever it is likely that the protection has been impaired, the instrument must be removed from service
and secured against unintended operation.
If this instrument is to be energized via an autotransformer (for voltage reduction), ensure that the common
terminal is connected to neutral.
Servicing instructions are for use by service–trained personnel only. To avoid personal injury, do not perform
any service unless qualified to do so.
Adjustments described in the manual are performed with the unit energized and protective covers removed.
Energy available, at many points, may cause personal injury.
For continued protection against fire hazard, replace the line fuse only with a 250V fuse of the same current
rating and type. Do not use repaired fuses or short circuited fuse holders.
1.6 Important Operating Precautions
The GT-1000A Amplifier does not include an enable/disable feature to activate and deactivate the amplifier.
When connecting or disconnecting the output of the amplifier, ensure that the power switch of the amplifier
is in the OFF position.
The amplifier is capable of power output levels greater than 15 Watts. Devices connected to the output of
the amplifier must be rated to handle 25 Watts or higher. Exceeding the rated output power of a device will
result in permanent damage.
When connecting the amplifier to a transmitting device, observe all safety procedures to ensure that the
amplifier isn’t interfering with other systems in the area. High power microwaves can adversely affect power
sensitive instruments in the area of transmission.
Exercise precautions to avoid exposure to radiated microwave energy at all times.
Page 2 Operation Manual, Part Number 34672, Rev. C, March 2011
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