Here’s the page we think you wanted. See search results instead:


Contact an Expert

N5281A Frequency down converter, 10 MHz to 50 GHz

Sold By:

Starting From US$ 51,172


Prices for: United States

* Prices are subject to change without notice. Prices shown are Manufacturer's Suggested Retail Prices (MSRP). Prices shown are exclusive of taxes.

Key Features & Specifications

Notice to EU customers: This product is no longer available due to lack of compliance with EU RoHS directive 2011/65/EU. Keysight will continue service and support to the end of worldwide support life.

  • IF port frequency range: 0.007 to 30.0 MHz


The N5281A is a four channel frequency converter test set. This test set is used with the N5242A 2-Port or 4-Port PNA-X Network Analyzer, and the N5264A Measurement Receiver.

Maximum 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
10 MHz to 50 GHz -10 dBm
IF output level1
10 MHz to 26.5 GHz 5 dB to -10 dB
26.5 MHz to 50 GHz2 -10 dB to -20 dB

IF output level is based on the RF input @ 0.1 dB typical compression.
2 3rd harmonic mode.

Visit: Antenna Test and RF Subsystems home page