Giga-tronics GT-1000B User manual

Giga-tronics GT-1000B Microwave Power Amplifier
Operation Manual, Part Number 34672-001, Rev. A, May 2013
Operation Manual
GT-1000B Microwave Power Amplifier

Giga-tronics GT-1000B Microwave Power Amplifier
Page ii Operation Manual, Part Number 34672-001, Rev. A, May 2013
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.
© 2013 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: [phone] (only within the United States)
925.328.4650
Fax: [phone]
On the Internet: www.gigatronics.com
Warranty
Giga-tronics GT-1000B 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.

Giga-tronics GT-1000B Microwave Power Amplifier
Operation Manual, Part Number 34672-001, Rev. A, May 2013 Page iii
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-1000B
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: [phone] (only within the United States)
925.328.4650
Fax: [phone]

Giga-tronics GT-1000B Microwave Power Amplifier
Page iv Operation Manual, Part Number 34672-001, Rev. A, May 2013
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
TPCI Number
TPCI Issue Date
Date Entered
Comments

Giga-tronics GT-1000B Microwave Power Amplifier
Operation Manual, Part Number 34672-001, Rev. A, May 2013 Page v
Table of Contents
CHAPTER 1SAFETY 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 2INTRODUCTION...................................................................................................................................3
2.1 Overview...........................................................................................................................................................3
2.1.1 Features and Benefits of the GT-1000B Microwave Power Amplifier ......................................................3
2.3 Controls, Indicators, and Connectors ...............................................................................................................4
2.3.1 GT-1000B Front Panel Description ............................................................................................................5
2.3.2 GT-1000B Rear Panel Description .............................................................................................................6
2.3.3 Replace the Fuse .......................................................................................................................................7
2.4 Receiving and Inspection..................................................................................................................................8
2.5 Prepare the GT-1000B 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-1000B........................................................................................................................... 10
2.6.2 Repairs.................................................................................................................................................... 10
2.6.3 Calibration .............................................................................................................................................. 10
CHAPTER 3OPERATE THE GT-1000B ...................................................................................................................11
3.1 Operating Safety and Instructions................................................................................................................. 11
3.2 Operator’s Maintenance ............................................................................................................................... 12
3.2.1 Equipment and Materials....................................................................................................................... 12
CHAPTER 4PERFORMANCE VERIFICATION ..............................................................................................................13
4.1 Specifications................................................................................................................................................. 13
4.2 Performance Verification .............................................................................................................................. 16
4.2.1 Equipment and Materials....................................................................................................................... 16
4.2.2 GT-1000B Performance Verification Setup ............................................................................................ 16
APPENDIX AOPTIONS .......................................................................................................................................19

Giga-tronics GT-1000B Microwave Power Amplifier
Page vi Operation Manual, Part Number 34672-001, Rev. A, February 2013
List of Tables
Table 1: GT-1000B Front Panel Indicators and Connections......................................................................................5
Table 2: GT-1000B Rear Panel Controls, Indicators, and Connections.......................................................................6
Table 3: Replace the GT-1000B Line Fuse ..................................................................................................................7
Table 4: Receiving and Inspection of the GT-1000B...................................................................................................8
Table 5: GT-1000B AC Power Specifications...............................................................................................................9
Table 6: Operate the GT-1000B............................................................................................................................... 11
Table 7: Cleaning the GT-1000B .............................................................................................................................. 12
Table 8: General Performance................................................................................................................................. 13
Table 9: GT-1000B 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-1000B Performance Verification Procedure ...................................................................................... 17
Table 16: GT-1000B Performance Verification Datasheet ...................................................................................... 18
Table 17: GT-1000B Options.................................................................................................................................... 19

Giga-tronics GT-1000B Microwave Power Amplifier Safety and Manual Conventions
Operation Manual, Part Number 34672-001, Rev. A, May 2013 Page 1
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-1000B 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.
WARNING
!
CAUTION

Safety and Manual Conventions Giga-tronics GT-1000B Microwave Power Amplifier
Page 2 Operation Manual, Part Number 34672-001, Rev. A, May 2013
1.5 Electrical Safety Precautions
•An uninterruptible safety earth ground must be provided from the main power source to the GT-1000B.
•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-1000B Amplifier does include an enable/disable feature to activate and deactivate the amplifier.
When connecting or disconnecting the output of the amplifier, ensure that either the Remote REF Off signal
is applied or 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.
CAUTION
WARNING
!

Giga-tronics GT-1000B Microwave Power Amplifier Introduction
Operation Manual, Part Number 34672-001, Rev. A, May 2013 Page 3
Chapter 2 Introduction
2.1 Overview
This chapter describes the controls, inputs/outputs, indicators, and basic function of the GT-1000B.
2.1.1 Features and Benefits of the GT-1000B Microwave Power Amplifier
•The standard GT-1000B typically provides 10 Watts 2 to 8 GHz, and 5 Watts up to 20 GHz. The GT-1000B
Option 06 typically provides 7 Watts 100 MHz to 8 GHz and 5 watts up to 18 GHz.
•The standard GT-1000B typically provides 40 dB of gain over the 2 to 20 GHz range. The GT-1000B Option 06
typically provides 35 dB of gain over the 100 MHz to 18 GHz range.
•Incorporates the CAP Wireless patented Spatium™ spatial combining architecture solid-state amplifier. The
Spatium™ technology amplifier is based on a solid state parallel MMIC design with exceptionally wide
bandwidth and high power. The unique circuit topology is highly reliable, with performance that excels
where extremes of bandwidth and power are demanded.
•Provides excellent pulse fidelity
•Low intermodulation distortion
•High linearity and superior gain flatness without the warm-up time, drift or aging issues of traveling wave
tube amplifiers (TWTA).
•Low noise figure
•Low harmonics and spurious content
•Highly tolerant to load mismatch.

Introduction Giga-tronics GT-1000B Microwave Power Amplifier
Page 4 Operation Manual, Part Number 34672-001, Rev. A, May 2013
2.3 Controls, Indicators, and Connectors
The following pages describe all of the features shown in Figure 1, Figure 2 and Figure 3 below:
Figure 1: GT-1000B Front Panel
Figure 2: Front Panel Indicators
Figure 3: GT-1000B Rear Panel

Giga-tronics GT-1000B Microwave Power Amplifier Introduction
Operation Manual, Part Number 34672-001, Rev. A, May 2013 Page 5
2.3.1 GT-1000B Front Panel Description
Table 1 describes the parts and functions of items on the front panel. Refer to Figure 1 on the
previous page for the location of the items on the front Panel.
Table 1: GT-1000B Front Panel Indicators and Connections
GT-1000B Front Panel Indicators and Connections
Name
Function
Power On/Off button
Switches the AC power on and off.
RF Output
•SMA (f) connector
•Option 02: Type-N (f) connector
RF Input (Option 04 Only)
Indicators
FAN FAULT 1
Illuminated indicates the exhaust fan has stopped rotating.
The POWER ON LED remains illuminated, and the amplifier is
fully functional until a TEMPERATURE FAULT occurs.
TEMPERATURE FAULT 1
When illuminated, indicates the internal heat sink
temperature exceeds 75 °C.
All amplifier functions are disabled, the POWER ON indicator
extinguishes, and any other fault indicators are disabled. The
amplifier remains non-functional with the TEMPERATURE
FAULT indicator illuminated until the heat sink temperature
drops to less than 50 °C, at which point, the amplifier will
automatically restart.
MODULE FAULT 1
When illuminated, the MODULE FAULT LED indicates that
one or more amplification modules in the final stage of the
power amplifier are malfunctioning. The POWER ON indica-
tor remains illuminated, and the amplifier remains functional
at reduced capability and performance.
POWER ON When illuminated, indicates AC power is applied and unit is
ready to function
1 If any fault occurs, switch off the instrument’s power at the front panel before investigating the cause
of the failure.

Introduction Giga-tronics GT-1000B Microwave Power Amplifier
Page 6 Operation Manual, Part Number 34672-001, Rev. A, May 2013
2.3.2 GT-1000B Rear Panel Description
Table 2 describes the parts and functions of items on the rear panel. Refer to Figure 3 on page 5 for the
location of the items on the rear panel.
Table 2: GT-1000B Rear Panel Controls, Indicators, and Connections
GT-1000B Rear Panel Controls, Indicators, and Connections
Name
Function
RF In (the RF input is located on the
front panel in Option 04)
•SMA (f) connector
•Option 02: Type-N (f) connectors
Detector out (Option 01 only) The output connector for the internal coupler/detector. This
output can be used for external ALC and power monitoring.
BNC (f) connector, nominal -1 Volt DC output at 10 Watts RF
out, and nominally -250 mV at 1 Watt RF out, into high
impedance.
Remote RF Off Input Input connector of amplifier enable/disable remote control.
BNC (f) connector, open circuit = amplifier enabled (RF On),
short circuit to ground = amplifier disabled (RF Off). Open
circuit voltage is nominally +5 V. Short circuit current is less
than 10 mA.
AC Input and fuse Provides the AC power input and over-current protection for
the amplifier. For fuse specifications at the AC voltage to be
used for the GT-1000B, see Table 13 on page 15.
NOTE: Instructions for replacing the fuse are located on page 7.
Serial number label Provides important information about the GT-1000
microwave power amplifier. A full description of the
information on the serial number label is provided below.
Serial Number Label Description
Descriptor
Type of Information
Code
This is a two-digit manufacturing code
Model
This identifies the model. This line is usually “GT-1000B.”
Serial This is a seven-digit serial number, and provides a unique
identifier for each GT-1000B.
Options When options have been included in the GT-1000B, one or
more two-digit numbers are listed on this line of the label.
For more information about options, see Appendix A on
page 19.
Config
Contains important unique configuration information.

Giga-tronics GT-1000B Microwave Power Amplifier Introduction
Operation Manual, Part Number 34672-001, Rev. A, May 2013 Page 7
2.3.3 Replace the Fuse
Follow the procedure in Table 3 below to replace the fuse.
Table 3: Replace the GT-1000B Line Fuse
Replace the GT-1000B Line Fuse
Step
Action
1.
Use the power switch on the front of the GT-1000B to switch the power OFF.
2. On the rear of the GT-1000B, disconnect the AC line cord. The fuse compartment is located next to the
AC line cord socket.
3. Remove the fuse as follows (see Figure below):
A) Use a small flat-blade screwdriver to pry open the fuse compartment.
B) Pull out the white fuse holder.
C) You can now remove the fuse from the fuse holder.
Figure 4: GT-1000B Fuse Holder
4. Replace the fuse with a new fuse (see Table 13 on page 15 for selecting the fuse type).
•
Push the fuse holder in, and close the fuse compartment door.
5. Plug the AC line cord into the rear of the GT-1000B and return the instrument to operation.
NOTE: If the GT-1000B continues to blow fuses, contact your local Giga-tronics sales representative or
the Giga-tronics factory for help to resolve the problem. See the contact information on the inside of the
front cover of this manual (page ii).
End of Procedure

Introduction Giga-tronics GT-1000B Microwave Power Amplifier
Page 8 Operation Manual, Part Number 34672-001, Rev. A, May 2013
2.4 Receiving and Inspection
Follow the procedure in Table 4 for receiving and inspecting the GT-1000B.
Table 4: Receiving and Inspection of the GT-1000B
Receiving and Inspection of the GT-1000B
Step
Action
1. Before opening the shipping container, inspect it for any signs of damage.
If THERE IS evidence of damage; record the location and extent of the damage and contact the
shipper immediately to report the damage.
If there is NO EVIDENCE of damage; continue to the next step.
2. Open the shipping container and inspect the contents for evidence of damage. The contents
should include any external, loose options and accessories, and the following:
•Operation Manual
•AC line cord
If any of the contents are damaged or missing, contact Giga-tronics immediately. Refer to the
Contact Information on the inside of the front cover of this manual.
End of procedure

Giga-tronics GT-1000B Microwave Power Amplifier Introduction
Operation Manual, Part Number 34672-001, Rev. A, May 2013 Page 9
2.5 Prepare the GT-1000B for Use
2.5.1 Cooling
The GT-1000B has an internal cooling fan. The air exhaust is located on the rear panel of the instrument. When
using the GT-1000B, ensure there are no obstructions to the flow of air into the instrument. Clean the fan filter
regularly, to prevent it becoming clogged and disrupting the air flow.
2.5.2 AC Power Requirements
Fuse Specifications: see Table 13 on page 15.
PROTECTIVE EARTH GROUND
This is a Safety Class 1 product (it includes a protective earth terminal). An
uninterruptible safety earth ground must be provided from the main AC power
source to the GT-1000B’s AC input connector. Observe the following:
•If it is possible that the safety earth ground has been impaired, make the
GT-1000B inoperative and secure it against unintended operation.
•If the GT-1000B will be powered through an autotransformer, verify that
the autotransformer’s common terminal is connected to the neutral
connector (the grounded side of the Mains supply).
MATCH FUSE TO INPUT AC VOLTAGE
Before applying AC power to the GT-1000B, check that the fuse in the rear of
the instrument (see Replace the Fuse on page 7) has a voltage rating that
matches the AC voltage.
AC Line Cord: All GT-1000B microwave synthesizers are supplied with a 6-foot, three-wire power cord with
three-terminal polarized plug with a safety ground. If a different power cord is used, it must not exceed 3 meters
(9 feet) in order to meet safety requirements.
Table 5 below describes the AC power requirements for the GT-1000B.
Table 5: GT-1000B AC Power Specifications
GT-1000B AC Power Specifications
Parameter
Specification
AC line voltage/frequency 85 to 264 Volts/47 to 63 Hz
NOTE: The GT-1000B automatically adjusts to operate at any voltage
within the voltage range above. No adjustment is necessary.
AC line power
450 VA maximum
WARNING
!
CAUTION

Introduction Giga-tronics GT-1000B Microwave Power Amplifier
Page 10 Operation Manual, Part Number 34672-001, Rev. A, May 2013
2.6 Shipping, Repair, and Calibration
2.6.1 Shipping the GT-1000B
If it is necessary to ship the GT-1000B, observe the following:
•Use the best packaging materials available. If possible, reuse the original shipping container.
•If the original shipping container is not available, use a strong carton (350lbs./sq.in. bursting strength) or a
wooden box.
•Wrap the instrument in heavy paper or plastic before placing it into the shipping container.
•Completely fill the areas on all sides of the instrument with packaging material. Take extra precaution to
protect the front and rear panels.
•Seal the package with strong tape or metal bands. Mark the outside of the package clearly, and in bold type,
as follows:
FRAGILE — DELICATE INSTRUMENT
2.6.2 Repairs
The Giga-tronics GT-1000B microwave synthesizer is a robust instrument that has been designed and built for
years of trouble-free service. However, if you experience problems with the instrument, do the following:
1. Contact your local Giga-tronics sales office, or the factory, and be prepared to provide the model, serial
number, and any included options of your instrument, and a description of the problem. To contact the
factory directly, use the following information:
Contacting Giga-tronics Customer Service
Email
[email protected]
Telephone (within the United States)
800.726.4442
Telephone
925.328.4702
Fax
925.328.4702
2. If it is has been determined that you must ship the GT-1000B to the factory or a service center for repair,
you will be issued a Return Materials Authorization (RMA) number. Use the RMA number in all
correspondence regarding the repair.
3. Pack the GT-1000B for shipment as described in the previous section, and enclose all relevant
information regarding the problem.
4. Ship the GT-1000B to the address provided by Giga-tronics Customer Service.
2.6.3 Calibration
The GT-1000B is not a calibrated instrument. No specific calibration is required. For more information, contact
Giga-tronics.

Giga-tronics GT-1000B Microwave Power Amplifier Operation
Operation Manual, Part Number 34672-001, Rev. A, May 2013 Page 11
Chapter 3 Operate the GT-1000B
3.1 Operating Safety and Instructions
This section describes how to operate the GT-1000B Microwave Power Amplifier. Equipment and personal
safety information is also provided.
DO NOT EXCEED AN INPUT LEVEL OF +17 dBm INTO THE GT-1000B.
EXCEEDING THIS LEVEL CAN DAMAGE THE GT-1000B MICROWAVE POWER
AMPLIFIER.
WHEN ENERGIZED, THE GT-1000B IS CAPABLE OF SUPPLYING POWER THAT
CAN CAUSE DAMAGE OR INJURY. TAKE THE FOLLOWING PRECAUTIONS TO
ENSURE SAFE SETUP AND OPERATION:
•Verify that all cables, connectors, and equipment connected to the GT-
1000B are in good condition.
•Do not make connections to equipment while the output of any item of
equipment is energized.
Table 6: Operate the GT-1000B
Operate the GT-1000B
Step
Action
1. Verify that the output of the signal source driving the amplifier is NOT energized before
continuing to the next step.
2. Connect the equipment to the GT-1000B according to your application.
NOTE: Verify all mating connectors are 50 Ohm, and that they are in good condition.
3.
Apply AC power to the GT-1000B by turning the front panel power switch ON. Observe that the
POWER ON indicator on the front panel illuminates (see Figure 1 on page 4)
4.
Verify that the output level of the signal source is set below +17 dBm.
5.
Energize the output of the signal source.
6. NOTE: The GT-1000B has a Remote RF Off input. This input may be used to enable or disable the
RF output. Open circuit = RF On. Short circuit to ground = RF Off.
7. NOTE: Do not exceed the safe limits of the output power from the GT-1000B into the load. The
load should be rated for at least 30 Watts CW.
End of Procedure
CAUTION
WARNING
!

Operation Giga-tronics GT-1000B Microwave Power Amplifier
Page 12 Operation Manual, Part Number 34672-001, Rev. A, May 2013
3.2 Operator’s Maintenance
The only operator’s maintenance that the GT-1000B requires is regular cleaning of the air exhaust screen and
interior of the instrument. Both are important in order to maintain cooling airflow through the GT-1000B.
3.2.1 Equipment and Materials
•Phillips screwdriver, small
•Vacuum cleaner
Table 7: Cleaning the GT-1000B
Cleaning the GT-1000B
Step
Action
1.
Use the front panel power switch to de-energize the GT-1000B.
2.
Disconnect the AC power cord from the rear of the GT-1000B.
3. Use a small Phillips screwdriver to remove the screws that secure both upper and lower covers
of the GT-1000B. Remove both covers.
4. Use a vacuum cleaner to remove dust from the interior and from the screen in the air exhaust
port on the rear of the instrument.
NOTE: Do not bump the vacuum nozzle against any of the components inside the GT-1000B
during this procedure.
5.
Replace both covers onto the GT-1000B.
6.
Ensure that the GT-1000B operates correctly.
End of Procedure

Giga-tronics GT-1000B Microwave Power Amplifier Performance Verification
Operation Manual, Part Number 34672-001, Rev. A, May 2013 Page 13
Chapter 4 Performance Verification
This chapter is divided into two sections:
•Specifications: this section contains all of the operating specifications that define the performance of
the GT-1000B.
•Performance Verification: this section contains the test procedure that ensures that the GT-1000B
meets the specifications.
4.1 Specifications
Table 8: General Performance
General Performance
Parameter
Performance Limits
Frequency range Standard GT-1000B: 2 GHz to 20 GHz
GT-1000B Option 06: 100 MHz to 18 GHz
Gain Standard GT-1000B: 40 dB nominal
GT-1000B Option 06: 35 dB nominal
Table 9: GT-1000B RF Output Power
GT-1000B RF Output Power
Frequency Range (Standard)
Specification
2 to 8 GHz
+40 dBm (10 Watts) typical, +38.5 dBm (7 Watts) minimum
8 to 12 GHz
+38.5 dBm (7 Watts) typical, +37 dBm (5 Watts) minimum
12 to 18 GHz
+37 dBm (5 Watts) typical, +36 dBm (4 Watts) minimum
18 to 20 GHz
+37 dBm (5 Watts) typical
Frequency Range (Option 06)
Specification
100 MHz to 2 GHz
+38.5 dBm (7 Watts) typical, +37 dBm (5 Watts) minimum
2 to 8 GHz
+38.5 dBm (7 Watts) typical, +37 dBm (5 Watts) minimum
8 to 12 GHz
+37 dBm (5 Watts) typical, +36 dBm (4 Watts) minimum
12 to 18 GHz
+36 dBm (4 Watts) typical, +35 dBm (3 Watts) minimum
Continued on next page

Performance Verification Giga-tronics GT-1000B Microwave Power Amplifier
Page 14 Operation Manual, Part Number 34672-001, Rev. A, May 2013
NOTES:
•Output power is specified as minimum saturated power into a 50 Ohm load with +5 dBm input,
at 23 °C ± 5 °C.
•RF Input power for normal operation should be limited to +17 dBm maximum.
•RF Output power (standard GT-1000B) with Option 01 is decreased by 1 dB.
•
RF Output power (GT-1000B Option 06) with Option 01 is decreased by 2 dB.
Table 10: Gain Flatness
Gain Flatness
Frequency Range
Specification
2 GHz to 20 GHz (standard GT-1000B)
+/- 3.5 dB maximum
100 MHz to 18 GHz (GT-1000B Option 06)
+/- 4.5 dB maximum
NOTES:
•Nominal gain is 40 dB. (Nominal gain with Option 06 is 35 dB)
•Gain flatness is specified as maximum variation with -5 dBm input and 50 Ohm load.
Table 11: VSWR
VSWR
Input, 50 Ohms Standard GT-1000B: 2:1 maximum
GT-1000B Option 06: 2.9:1 maximum, 2.5:1 typical
Output, 50 Ohms Standard GT-1000B: 2.7:1 maximum, 2.3:1 typical
GT-1000B Option 06: 3.7:1 maximum, 3.5:1 typical
Table 12: General Specifications
General Specifications
Parameter
Specification
Line Voltage
85 to 264 VAC, 47 to 63 Hz, Single Phase
Line Power
450 VA maximum
Operating Temperature
0 °C to +50 °C
Storage Temperature
-20 °C to +75 °C
Cooling
Forced air, field replaceable fans
Rack Height
3U (5.25 inches)