Keysight Technologies N5280A Manual

User’s and
Service Guide
Keysight Technologies
N5280A
Notice: This document contains references to
Agilent. Please note that Agilent’s Test and
Measurement business has become Keysight
Technologies. For more information, go to
www.keysight.com.

Notices
© Keysight Technologies, Inc.
2008-2017
No part of this manual may be
reproduced in any form or by any
means (including electronic storage
and retrieval or translation into a
foreign language) without prior
agreement and written consent from
Keysight Technologies, Inc. as
governed by United States and
international copyright laws.
Trademark Acknowledgments
Manual Part Number
N5280-90001
Edition
June 2017
Supersedes: August 2015
Printed in USA
Published by:
Keysight Technologies
1400 Fountaingrove Parkway Santa
Rosa, CA 95403
Warranty
THE MATERIAL CONTAINED IN
THIS DOCUMENT IS PROVIDED “AS
IS,” AND IS SUBJECT TO BEING
CHANGED, WITHOUT NOTICE, IN
FUTURE EDITIONS. FURTHER, TO
THE MAXIMUM EXTENT PERMITTED
BY APPLICABLE LAW, KEYSIGHT
DISCLAIMS ALL WARRANTIES,
EITHER EXPRESS OR IMPLIED WITH
REGARD TO THIS MANUAL AND
ANY INFORMATION CONTAINED
HEREIN, INCLUDING BUT NOT
LIMITED TO THE IMPLIED
WARRANTIES OF
MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE.
KEYSIGHT SHALL NOT BE LIABLE
FOR ERRORS OR FOR INCIDENTAL
OR CONSEQUENTIAL DAMAGES IN
CONNECTION WITH THE
FURNISHING, USE, OR
PERFORMANCE OF THIS
DOCUMENT OR ANY INFORMATION
CONTAINED HEREIN. SHOULD
KEYSIGHT AND THE USER HAVE A
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WITH WARRANTY TERMS
COVERING THE MATERIAL IN THIS
DOCUMENT THAT CONFLICT WITH
THESE TERMS, THE WARRANTY
TERMS IN THE SEPARATE
AGREEMENT WILL CONTROL.
Technology Licenses
The hardware and/or software
described in this document are
furnished under a license and may be
used or copied only in accordance
with the terms of such license.
U.S. Government Rights
The Software is “commercial
computer software,” as defined
by Federal Acquisition Regulation
(“FAR”) 2.101. Pursuant to FAR
12.212 and 27.405-3 and
Department of Defense FAR
Supplement (“DFARS”) 227.7202,
the U.S. government acquires
commercial computer software
under the same terms by which
the software is customarily
provided to the public.
Accordingly, Keysight provides
the Software to U.S. government
customers under its standard
commercial license, which is
embodied in its End User License
Agreement (EULA), a copy of
which can be found at
http://www.keysight.com/find/sweula
The license set forth in the EULA
represents the exclusive authority
by which the U.S. government
may use, modify, distribute, or
disclose the Software. The EULA
and the license set forth therein,
does not require or permit,
among other things, that
Keysight: (1) Furnish technical
information related to
commercial computer software
or commercial computer
software documentation that is
not customarily provided to the
public; or (2) Relinquish to, or
otherwise provide, the
government rights in excess of
these rights customarily provided
to the public to use, modify,
reproduce, release, perform,
display, or disclose commercial
computer software or
commercial computer software
documentation. No additional
government requirements
beyond those set forth in the
EULA shall apply, except to the
extent that those terms, rights, or
licenses are explicitly required
from all providers of commercial
computer software pursuant to
the FAR and the DFARS and are
set forth specifically in writing
elsewhere in the EULA. Keysight
shall be under no obligation to
update, revise or otherwise
modify the Software. With
respect to any technical data as
defined by FAR 2.101, pursuant
to FAR 12.211 and 27.404.2 and
DFARS 227.7102, the U.S.
government acquires no greater
than Limited Rights as defined in
FAR 27.401 or DFAR 227.7103-5
(c), as applicable in any technical
data.
Safety Notices
A CAUTION notice denotes a hazard. It
calls attention to an operating
procedure, practice, or the like that,
if not correctly performed or adhered
to, could result in damage to the
product or loss of important data. Do
not proceed beyond a CAUTION
notice until the indicated conditions
are fully understood and met.
A WARNING notice denotes a hazard.
It calls attention to an operating
procedure, practice, or the like that,
if not correctly performed or adhered
to, could result in personal injury or
death. Do not proceed beyond a
WARNING notice until the indicated
conditions are fully understood and
met.

Contents
Keysight N5280A User’s and Service Guide 3
Table of Contents
N5280A
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Network Analyzer Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Verifying the Shipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Available Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Test Set Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Environmental Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Equipment Heating and Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Required Conditions for Accuracy Enhanced Measurement. . . . . . . . . . . . . . . . . . . . . 13
Dimensions and Space Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Maximum Power Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Front and Rear Panel Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
RF INPUTS (A, B, C and D) (all options) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
IF OUTPUTS (A, B, C and D) (Option 002) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
LO INPUT (Option 002). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Standby Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
IF OUT (A, B, C/R1 and D/R2) (Option 700 and 001) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
LO IN (Option 700 and 001) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
LO AUX (All Options) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Attenuators (A, B, C and D) (Option 001) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Line Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Available Fuses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Controlling the Test Set with N5242A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Controlling the Test Set with N5264A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Controlling the N5280A Option 002 using an Oscilloscope . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Controlling the RF Receiver Attenuators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Operational Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Equipment Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Verification Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Typical Plots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Operational Check Procedure (Option 700 and 001) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Preparing the N5242A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Attenuator Element Verification Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Operational Check Procedure (Option 002). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Requirements for Operational Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

4 Keysight N5280A User’s and Service Guide
Contents
Required Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Instrument Setup (Source Calibration) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Check IF Output A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Check LO AUX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Safety and Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Safety Earth Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Statement of Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Before Applying Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
Connector Care and Cleaning Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
Regulatory Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
Instrument Markings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
EMC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
South Korean Class A EMC Declaration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
Acoustic Statement (European Machinery Directive): . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
Electrostatic Discharge Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
Keysight Support, Services, and Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
Service and Support Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
Contacting Keysight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
Shipping Your Product to Keysight for Service or Repair. . . . . . . . . . . . . . . . . . . . . . . . . .54

5
Keysight N5280A
User’s and Service Guide
N5280A
Introduction
The N5280A replaces the 8511A Four Channel Frequency Converter Test Set.
This document describes how to use the N5280A Test Set with the Keysight
N5242A 2-Port, or 4-Port PNA-X Network Analyzer and N5264A Measurement
Receiver.
Figure 1 N5242A 2-Port PNA-X with N5280A

6 Keysight N5280A User’s and Service Guide
N5280A
Introduction
-
Figure 2 N5242A 4-Port PNA-X with N5280A

Keysight N5280A User’s and Service Guide 7
N5280A
Introduction
Figure 3 N5264A Measurement Receiver with N5280A

8 Keysight N5280A User’s and Service Guide
N5280A
Description
-
Description
The Keysight N5280A is a four channel frequency converter Test Set. This Test
Set is used with the Keysight N5242A 2-Port or 4-Port PNA-X Network
Analyzer, and a N5264A Measurement Receiver. It can be operated with other
microwave accessories (couplers, power splitters). The N5280A provides a
convenient means of customizing a test configuration for a variety of
applications within a frequency range of 10 MHz to 26.5 GHz. In addition to
configurations for measuring reflection and transmission parameters of
one-port or two-port devices, you can build configurations to characterize
antenna parameters, radar cross sections and frequency translation devices.
Figure 4 on page 9 illustrates one possible measurement set-up configuration.
Network Analyzer Requirements
— The N5242A 2-Port or 4-Port PNA-X Network Analyzer (10 MHz to 26.5
GHz) requires Option 020, which adds IF inputs.
— The N5264A Measurement Receiver requires Option 108, which adds LO
Source 26.5 GHz.
More PNA information is available on the following websites:
—Documentation - http://www.keysight.com/find/pna
— Network Analyzer Firmware -
http://na.support.keysight.com/pna/firmware
Verifying the Shipment
To verify the contents shipped with your product, refer to Table 1.
Inspect the shipping container. If the container or packing material is
damaged, it should be kept until the contents of the shipment have been
checked mechanically and electrically. If there is physical damage refer to
“Contacting Keysight” on page 54. Keep the damaged shipping materials (if
any) for inspection by the carrier and an Keysight Technologies representative.
Table 1 Content List
Keysight 
Part Number
Description Qty
9320-6636 Functional Test Certificate 1
9320-0333 Envelope-Cal Certificate 1
5063-9232 Rack Mount Kit with Handles 1
5063-9226 Front Handle Kit 1
5061-9038 Cable Assembly 5
N5280-90001 User’s and Service Guide 1

Keysight N5280A User’s and Service Guide 9
N5280A
Description
Figure 4 Measurement Setup
RF
RF
C
A
LO
Source Antenna
Reference Antenna
DUT
N5264A Measurement Receiver
N5280A Frequency Converter AC
RF Source
RF Source
Positioner
Positioner
Controller
Amplifier
Control Lines RF Cable
RF Cable
RF Cable
RF Cable
IF Cables
10 MHz REF
LAN/GPIB
10 MHz REF
LAN/GPIB

10 Keysight N5280A User’s and Service Guide
N5280A
Description
-
Available Options
Test Set Options
The N5280A has two available Test Set options: 
Refer to Figure 29 on page 43, Figure 30 on page 44 and Figure 31 on
page 45.
— Standard (700) - There are no attenuators in the RF Input paths.
— Option 001 - There are four attenuators (0 to 35 dB) in the RF Input paths to
reduce the power levels.
— Option 002 - There are four IF Channels (A, B, C and D) and LO Input on the
front panel.

Keysight N5280A User’s and Service Guide 11
N5280A
General Specifications
General Specifications
Specifications for the N5280A Frequency Converter Test Set (10 MHz to 26.5
GHz) are characteristic for the System performance of the PNA and Test Set.
Actual performance of the system is based on the customers PNA that is used
with the Test Set.
A functional certificate is supplied for the N5280A. The N5280A performance is
based on external components such as the calibration kit, network analyzer,
external sources, and measurement receiver. There are no internal adjustments
in the N5280A, therefore an annual calibration is not required.
Frequency range and connectors are listed in Table 2 for specific ports.
Table 2 Frequency Range and Connectors
Port Frequency Range Connectors
RF Port 0.01 to 26.5 GHz 3.5 mm female
LO Port 0.01 to 26.5 GHz 3.5 mm female
IF Port 7 to 20 MHz (with jumper, LP OUT)
0.007 to 1.5 GHz (without jumper, Max BW)
SMA female

12 Keysight N5280A User’s and Service Guide
N5280A
General Specifications
-
Power Requirements
Verify that the required ac power is available before installing the Test Set to
the PNA.
— 100/120/220/240 VAC (50/60Hz)
— The instruments can operate with mains supply voltage fluctuations up to ±
10% of the nominal voltage.
— Air conditioning equipment (or other motor–operated equipment) should
not be placed on the same ac line that powers the Test Set and PNA.
—Table 3 contains the maximum wattage for all instruments. This table can
be use to determine the electrical and cooling requirements.
Table 3 Maximum Power Requirements
Standard Equipment
Instrument Max Wattage
N5242A 450
N5264A 450
N5280A 350
This is a Safety Class I product (provided with a protective earthing
ground incorporated in the power cord). The mains plug shall be
inserted only into a socket outlet provided with a protective earth
contact. Any interruption of the protective conductor, inside or
outside the instrument, is likely to make the instrument dangerous.
Intentional interruption is prohibited.

Keysight N5280A User’s and Service Guide 13
N5280A
General Specifications
Environmental Requirements
The environmental requirements of the Test Set are listed in Table 4. Refer to
the N5242A PNA-X and N5264A Measurement Receiver standard
documentation for environmental requirements.
Environmental
The N5280A complies with all applicable safety and regulatory requirements
for the intended location of use.
— The instrument can safely operate in a relative humidity of 80% for
temperatures to 31 °C, decreasing linearly to 50% relative humidity at 40
°C.
Equipment Heating and Cooling
If necessary, install air conditioning and heating to maintain the ambient
temperature within the appropriate range. Air conditioning capacity must be
consistent with the BTU ratings given in Table 3.
Required Conditions for Accuracy Enhanced Measurement
Accuracy–enhanced (error–corrected) measurements require the ambient
temperature of the PNA and Test Set to be maintained within ± 1 °C of the
ambient temperature at calibration.
Ventilation Requirements: When installing the instrument in a cabinet, the
convection into and out of the instrument must not be restricted. The
ambient temperature (outside the cabinet) must be less than the maximum
operating temperature of the instrument by 4 C for every 100 watts
dissipated in the cabinet. If the total power dissipated in the cabinet is
greater than 800 watts, forced convection must be used.
Table 4 PNA Operating Environment
Operating Environmental Requirements:
Temperature 0 °C to 40 °C (32 °F to 104 °F)
Meas ure ment Cal ibrat ion 20 °C to 2 6 °C (68 °F to 79 ° F)
Performance Verification Temperature must be within 1 °C (1.8 °F) of the temperature
at which the measurement calibration was performed.
Pressure Altitude 
(Operating)
3000 meters (9,842 feet)

14 Keysight N5280A User’s and Service Guide
N5280A
General Specifications
-
Dimensions and Space Requirements
Standard installation of the N5280A and PNA includes configuration and
installation on a customer provided lab bench, or table top of adequate size
and strength.
Maximum Power Levels
Table 5 Instrument Dimensions
Model Weight Height Width Depth
N 5 2 4 2 A 37 kg 
82 lb (±0.5 lb)
26.67 cm
(10.5 in)
42.5 cm
(16.75 in)
55.8 cm 
(21.97 in)
N 5 2 6 4 A 2 2 k g 
48 lb (±0.5 lb)
26.67 cm
(10.5 in)
42.5 cm
(16.75 in)
55.8 cm 
(21.97 in)
N5280A 9.1 kg 
(20 lb)
8.9 cm 
(3.5 in)
42.5 cm
(16.75 in)
48.3 cm 
(19 in)
Table 6 Power Levels
RF Input Power Damage Levels
RF Port +18 dBm
LO Port +5 dBm
Optimum LO Power 0 dBm (±1 dB)
RF Input @ 0.1 dB Typical Compression
A- D Receiver 10 dBm
IF Output Level1
1. IF Output level is based on the RF Input @
0.1 dB typical compression.
Ports A- D 10 dBm
Refer to your PNA specifications to determine the maximum input power
levels for the PNA access and test ports, or to optimize the power levels in
the receivers.
Damage and maximum levels are not necessarily the optimum level.

Keysight N5280A User’s and Service Guide 15
N5280A
Front and Rear Panel Features
Front and Rear Panel Features
Figure 5 Front Panel N5280A (Option 700 and 001)
Figure 6 Front Panel N8280A (Option 002)
RF INPUTS (A, B, C and D) (all options)
These input signals (10 MHz to 26.5 GHz) will be downconverted and directed
to the IF Outputs.
IF OUTPUTS (A, B, C and D) (Option 002)
These outputs transmit IF signals (10 MHz to 1.5 GHz) derived from the RF
Inputs.
LO INPUT (Option 002)
This input signal (10 MHz to 26.5 GHz) is used as the LO to downconvert the
RF Inputs and to provide a buffered LO Output.
Standby Switch
The switch is only a Standby switch, not a AC line power switch.The main
power cord can be used as the system disconnecting device. It disconnects the
mains circuits from the mains supply.
RF INPUT Ports
A B C D
A B C D
A B C D LO INPUT
IF OUTPUT Ports
RF INPUT Ports

16 Keysight N5280A User’s and Service Guide
N5280A
Front and Rear Panel Features
-
Figure 7 Rear Panel (Option 700 and 001)
Figure 8 Rear Panel (Option 002)
IF OUT (A, B, C/R1 and D/R2) (Option 700 and 001)
LP OUT from the IF Outputs are connected to the IF Inputs on the PNA-X. The
RF Jumper (N5222-20091 was E8356-20072) is connected between LP IN and
Max BW. These connectors transmit the IF signal from the Test Set to the
N5242A 2-Port or 4-Port PNA-X and N5264A Measurement Receiver.
RF Jumper LO AUX (load) Line Module
LO IN Attenuators (Option 001)
LP OUT
LP IN
Max BW
LO AUX (load)

Keysight N5280A User’s and Service Guide 17
N5280A
Front and Rear Panel Features
LO IN (Option 700 and 001)
LO IN is connected to the LO OUT from the EXT TSET DRIVE on the PNA-X.
LO AUX (All Options)
The load (1810-0118) is connected to LO AUX.
Attenuators (A, B, C and D) (Option 001)
These connectors are used only in Test Sets with Option 001. The four Viking
attenuator connectors are controlled by the 11713C Attenuator Switch Driver.
Line Module
The line fuse, as well as a spare, reside within the line module. Figure 9
illustrates where the fuses are located and how to access them.
Available Fuses
— Fuse (F 5 A/250V, 2110-0709) UL listed and CSA certified
Figure 9 Line Fuse
For continued protection against fire hazard replace line fuse only
with same type and rating: Fuse 5A/250V, Part Number 2110-0709.
The use of other fuses or material is prohibited.
Verify that the premise electrical voltage supply is within the range
specified on the instrument.

18 Keysight N5280A User’s and Service Guide
N5280A
Controlling the Test Set with N5242A
-
Controlling the Test Set with N5242A
This section will describe how to setup and operate the N5280A Frequency
Converter Test Set with the N5242A 2-Port or 4-Port PNA-X Network Analyzer.
A PNA-X must be used to control the N5280A. The internal LO Source from the
PNA-X can be used for testing. Refer to Figure 10 and Figure 11 for cable
connections from the N5280A to the N5242A PNA-X.
Figure 10 Front Panel N5280A and N5242A PNA-X
RF INPUTS
ABC D
N5280A Frequency Converter
N5242A 4-Port PNA-X

Keysight N5280A User’s and Service Guide 19
N5280A
Controlling the Test Set with N5242A
Figure 11 Rear Panel N5280A and N5242A PNA-X
LO IN
LO AUX
D/R2 C/R1 A
B
IF OUTPUTS
ABCD
ATTENUATOR
IF OUTPUTS
N5242A 2-Port PNA-X
N5280A Frequency Converter
A
B
C/R1
D/R2
LO

20 Keysight N5280A User’s and Service Guide
N5280A
Controlling the Test Set with N5264A
-
Controlling the Test Set with N5264A
This section will describe how to setup and operate the N5280A Frequency
Converter Test Set with the N5264A Measurement Receiver.
A N5264A must be used to control the N5280A. The N5264A Option 108 adds
an internal LO Source 26.5 GHz for testing. Refer to Figure 12 and Figure 16 on
page 24 for cable connections.
You may also use an external LO Source for testing. Refer to Figure 14 on
page 22 and Figure 15 on page 23 for cable connections.
Figure 12 Front Panel N5280A and N5264A with Option 108
N5264A
Measurement Receiver
N5280A
Frequency Converter
RF Source