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Summary of Contents for Keysight U7228C
- Page 1 Keysight U7228A/C/F USB Pre-Amplifier Operating and Service Manual...
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Page 2: Safety Information
Dec- set forth specifically in writing else- understood and met. laration of Conformity. where in the EULA. Keysight shall be under no obligation to update, revise or WARNING otherwise modify the Software. With respect to any technical data as defined by FAR 2.101, pursuant to FAR... -
Page 3: Compliance Notices And Regulatory Information
“Monitoring and Control Instrument” product. The affixed product label is as shown below. Do not dispose in domestic household waste. To return this unwanted instrument, contact your nearest Keysight Service Center, or visit http://about.keysight.com/en/companyinfo/environment/takeback.shtml for more information. -
Page 4: Regulatory Markings
Sales and Technical Support To contact Keysight for sales and technical support, refer to the support links on the following Keysight websites: – www.keysight.com/find/amplifiers (product-specific information and documentation updates) –... -
Page 5: Table Of Contents
........36 Keysight Product Model User’s Guide... - Page 6 ......... . . 39 Keysight Product Model User’s Guide...
- Page 7 ........27 Figure 3-14 Keysight U7228C Third Order Intercept (TOI) vs Frequency (Typical) .
- Page 8 ........29 Figure 3-21 Keysight U7228F Third Order Intercept (TOI) vs Frequency (Typical) .
- Page 9 .....22 Table 3-2 U7228A Pre-Amplifier Graphical Performance Data . .24 Table 3-3 U7228C Pre-Amplifier Graphical Performance Data . .26 Table 3-4 U7228F Pre-Amplifier Graphical Performance Data . .28...
- Page 10 THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. Keysight Product Model User’s Guide...
- Page 11 Keysight U7228A/C/F USB Pre-Amplifier Operating and Service Manual Introduction Product Overview This chapter provides an overview of the Keysight U7228A/C/F USB Pre-Amplifier.
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Page 12: Introduction
USB pre-amplifier eliminates the need for an external power supply and is ideal for either benchtop measurements or on remote front-end applications. When connected to the Keysight X-Series signal analyzer, the USB pre-amplifier can automatically configure the signal analyzer to detect the specific pre-amplifier connected. -
Page 13: Key Features Of The U7228A/C/F Usb Pre-Amplifier
– Automatic gain correction value with temperature compensation and transfer of calibration data (noise figure and S-parameters) through USB plug-and-play features for improved noise figure measurements with Keysight N9040B UXA and N9010/20/30A X-Series signal analyzers – Excellent noise figure and optimized gain with X-Series signal analyzers improve measurement accuracy and minimize uncertainty –... - Page 14 Introduction THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. Keysight U7228A/C/F Operating and Service Manual...
- Page 15 Keysight U7228A/C/F USB Pre-Amplifier Operating and Service Manual Installation Initial Inspection Verify the U7228A/C/F Shipment Contents Service and Recalibration Operating and Safety Precautions USB Pre-Amplifiers Covered by this Guide This chapter provides you important information on how to check and prepare...
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Page 16: Installation
– Procedures for checking electrical performance are given under “Operator’s check” on page 36. 2 If the contents are damaged or defective, contact your nearest Keysight Technologies Service and Support Office. Refer to “Sales and Technical Support” on page 4 of this manual. Keysight Technologies will arrange for repair or replacement of the damaged or defective equipment. -
Page 17: Verify The U7228A/C/F Shipment Contents
5962-0476 Service and Recalibration If your U7228A/C/F USB Pre-Amplifier requires service or repair, contact the nearest Keysight office for information on where to send it. Refer to “Sales and Technical Support” on page 4 of this manual. The performance of the U7228A/C/F can only be verified by specially-manufactured equipment and calibration standard from Keysight. -
Page 18: Operating And Safety Precautions
– Ground yourself before you clean, inspect, or make a connection to the U7228A/C/F. You can, for example, grasp the grounded outer shell of the analyzer test port or cable connector briefly. – Avoid touching the exposed connector pins. Keysight U7228A/C/F Operating and Service Manual... -
Page 19: Connector Care
CAUTION connectors. The recommended torque value is 8 lb-in for 2.4 mm and 3.5 mm type connectors. For the input and output ports, the recommended torque wrench is 20 mm with part number 8710-1764. Keysight U7228A/C/F Operating and Service Manual... -
Page 20: Usb Pre-Amplifiers Covered By This Guide
USB Pre-Amplifiers Covered by this Guide There are three models available as follows: – U7228A: USB Pre-Amplifier, 10 MHz to 4 GHz, Cable-less – U7228C: USB Pre-Amplifier, 100 MHz to 26.5 GHz, Cable-less – U7228F: USB Pre-Amplifier, 2 GHz to 50 GHz, Cable-less Output... - Page 21 Keysight U7228A/C/F USB Pre-Amplifier Operating and Service Manual Specifications General Specifications Mechanical Dimensions Environmental Specifications This chapter provides the specifications of the U7228A/C/F USB Pre-Amplifier.
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Page 22: Specifications General Specifications
Output return loss >18 dB (1.29) (10 MHz to 4 GHz) (Output SWR) >8 dB (2.32) >11 dB (1.78) (26.5 to 40 GHz) (4 to 26.5 GHz) >6 dB (3.00) (40 to 50 GHz) Keysight U7228A/C/F Operating and Service Manual... -
Page 23: Table 3-1 Table
Plug-and-play USB connection Optimized gain slope for better spectrum analysis Automatic gain compensation Automatic temperature compensation [a] Specifications are tested and measured on an operating temperature of 23 °C. [b] "F" signifies frequency in GHz. Keysight U7228A/C/F Operating and Service Manual... -
Page 24: Graphical Performance Data
3.50 4.00 Frequency (GHz) Frequency (GHz) Input Return Loss Specification Output Return Loss Specification Figure 3-3 Keysight U7228A Input Return Figure 3-4 Keysight U7228A Output Return Loss vs Frequency (Typical) Loss vs Frequency (Typical) Keysight U7228A/C/F Operating and Service Manual... -
Page 25: Figure 3-5 Keysight U7228A Output P1Db Vs Frequency (Typical)
Keysight U7228A Reverse Frequency (Typical) Isolation vs Frequency (Typical) 0.01 0.51 1.01 1.51 2.01 2.50 3.00 3.50 4.00 Frequency (GHz) Third Order Intercept (TOI) Figure 3-7 Keysight U7228A Third Order Intercept (TOI) vs Frequency (Typical) Keysight U7228A/C/F Operating and Service Manual... -
Page 26: Figure 3-8 Keysight U7228C Gain Vs Frequency (Typical)
Specifications Table 3-3 U7228C Pre-Amplifier Graphical Performance Data 10.0 13.3 16.6 19.9 23.2 26.5 13.3 16.6 19.9 23.2 26.5 Frequency (GHz) Frequency (GHz) Noise Figure Specification Gain Specification Figure 3-9 Keysight U7228C Noise Figure vs Figure 3-8 Keysight U7228C Gain vs... -
Page 27: Figure 3-12 Keysight U7228C Output P1Db Vs Frequency (Typical)
Specifications Table 3-3 U7228C Pre-Amplifier Graphical Performance Data (continued) -100 10.0 13.3 16.6 19.9 23.2 26.5 10.0 13.3 16.6 19.9 23.2 26.5 Freq uency (GHz) Frequency (GHz) Output P1dB Reverse Isolation Figure 3-12 Keysight U7228C Output P1dB vs Figure 3-13... -
Page 28: Figure 3-15 Keysight U7228F Gain Vs Frequency (Typical)
Keysight U7228F Gain vs Frequency (Typical) Frequency (Typical) Freq ency (GHz) Input Return Loss Specification Figure 3-17 Keysight U7228F Input Return Figure 3-18 Keysight U7228F Output Return Loss vs Frequency (Typical) Loss vs Frequency (Typical) Keysight U7228A/C/F Operating and Service Manual... -
Page 29: Figure 3-19 Keysight U7228F Output P1Db Vs Frequency (Typical)
Figure 3-19 Keysight U7228F Output P1dB vs Figure 3-20 Keysight U7228F Reverse Frequency (Typical) Isolation vs Frequency (Typical) Frequency (GHz) Third Order Intercept (TOI) Figure 3-21 Keysight U7228F Third Order Intercept (TOI) vs Frequency (Typical) Keysight U7228A/C/F Operating and Service Manual... -
Page 30: Physical Specifications
Table 3-5 U7228A/C/F physical specifications Net weight 0.36 kg (0.79 lbs) Shipping weight 1.34 kg Shipping dimensions: – Length 430 mm (16.92 in) – Width 260 mm (10.23 in) – Height 170 mm (6.69 in) Keysight U7228A/C/F Operating and Service Manual... -
Page 31: Mechanical Dimensions
Specifications Mechanical Dimensions Figure 3-22 Mechanical dimensions of the U7228A/C Keysight U7228A/C/F Operating and Service Manual... -
Page 32: Figure 3-23 Mechanical Dimensions Of The U7228F
Specifications Figure 3-23 Mechanical dimensions of the U7228F Keysight U7228A/C/F Operating and Service Manual... -
Page 33: Environmental Specifications
Specifications Environmental Specifications The U7228A/C/F is designed to fully comply with Keysight Technologies's product operating environment specifications. The following table shows the summarized environmental specifications for this product. Table 3-6 U7228A/C/F environmental specifications Temperature 0 to +55 °C – Operating –40 °C to +70 °C... - Page 34 Specifications THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. Keysight U7228A/C/F Operating and Service Manual...
- Page 35 Keysight U7228A/C/F USB Pre-Amplifier Operating and Service Manual Operating Guides Operating Instructions Service and Maintenance This chapter provides simple quick-check instructions to verify the U7228A/C/F USB Pre-Amplifier functionality prior to usage.
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Page 36: Operating Guides
Any network Analyzer with a USB supply can be used for performance test verification. The equipment setup is as illustrated below. USB connection Output Input U7228A/C/F USB Pre-Amplifier Figure 4-1 Quick-check configuration for the S-parameter test Keysight U7228A/C/F Operating and Service Manual... -
Page 37: S-Parameter Measurement Parameters
4 Connect the pre-amplifier to the USB supply of the network analyzer. 5 Obtain the measurement result for S11 (input return loss), S22 (output return loss), and S21 (gain). 6 Compare the measurement results with the specifications in Table 3-1. Keysight U7228A/C/F Operating and Service Manual... -
Page 38: Noise Figure Measurement Parameters
2. 4 Connect the pre-amplifier to the USB supply of the network analyzer. 5 Obtain the measurement result for noise figure. 6 Compare the measurement results with the specifications in Table 3-1. Keysight U7228A/C/F Operating and Service Manual... -
Page 39: Service And Maintenance
The U7228A/C/F does not have internal adjustments and should not be opened; it should only be repaired by service-trained personnel. Should it become necessary to return the U7228A/C/F for repair or service, contact your nearest Keysight Sales and Service Center. - Page 40 Operating Guides THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. Keysight U7228A/C/F Operating and Service Manual...
- Page 41 This information is subject to change without notice. Always refer to the English version at the Keysight website for the latest revision. © Keysight Technologies 2015 Edition 1, Feb 1, 2016 Printed in Malaysia *U7228-90001* U7228-90001 www.keysight.com...
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