Keysight 85309B User’s and Service Guide -iii
Printing Copies of Documentation from the Web
To print copies of documentation from the Web, download the PDF file from
the Keysight web site:
— Go to
http://www.keysight.com.
— Enter the product model number (Ex: 85309B) in the Search function.
— Click Search.
— Click the Manuals hyperlink.
— Click the hyperlink title for the document you want to print - this downloads
the PDF
— Print the document after the PDF has fully downloaded.
Definitions
— Specifications describe the performance of parameters covered by the
product warranty (temperature –0 to 50
°
C, unless otherwise noted.)
— Typical describes additional product performance information that is not
covered by the product warranty. It is performance beyond specification
that 80% of the units exhibit with a 95% confidence level over the
temperature range 20 to 30
°
C. Typical performance does not include
measurement uncertainty.
— Nominal values indicate expected performance or describe product
performance that is useful in the application of the product, but is not
covered by the product warranty.
— Characteristic Performance describes performance parameter that the
product is expected to meet before it leaves the factory, but is not verified in
the field and is not covered by the product warranty. A characteristic
includes the same guard bands as a specification.
85309B Overview
The 85309B LO/IF Distribution Unit is a broadband, distributed frequency
converter that utilizes fundamental mixing to provide the performance for
antenna test systems. The 85309B, together with mixers in the antenna test
configuration (not supplied), down convert a microwave signal to an IF signal.
This IF signal is input directly to the PNA digitizer (via either front panel
jumpers or a rear panel connector), bypassing the PNA’s RF conversion stage,
for increased measurement sensitivity.
The 85309B LO/IF Distribution Unit contains LO signal amplifiers, which
amplify LO drive power through RF cables to the mixers in the antenna test
configuration. The high output power allows the mixers to be located more
Summary of Contents for 85309B LO/IF
Page 6: ...vi Keysight 85309B User s and Service Guide...
Page 18: ...1 10 Keysight 85309B User s and Service Guide Getting Started Getting Help with Your 85309B 1...
Page 86: ...4 32 Keysight 85309B User s and Service Guide Service Replaceable Parts 4...
