Here's the page we think you wanted.
See search results instead:
Choose a country or area to see content specific to your location
Enable browser cookies for improved site capabilities and performance.
Toggle Menu
-
PRODUCTS AND SERVICES
-
Oscilloscopes
-
Analyzers
- Spectrum Analyzers (Signal Analyzers)
- Network Analyzers
- Logic Analyzers
- Protocol Analyzers and Exercisers
- Bit Error Ratio Testers
- Noise Figure Analyzers and Noise Sources
- High-Speed Digitizers and Multichannel DAQ Solutions
- AC Power Analyzers
- DC Power Analyzers
- Materials Test Equipment
- Device Current Waveform Analyzers
- Parameter / Device Analyzers and Curve Tracers
-
Meters
-
Generators, Sources, and Power Supplies
-
Software
-
Wireless
-
Modular Instruments
-
Network Test and Security
-
Network Visibility
-
Services
-
Additional Products
- All Products, Software, Services
-
-
Solutions
-
Explore by Use Case
Explore by Industry
- All Solutions
- Insights
- Resources
- Buy
- Support
What are you looking for?
Suggested searches
No product matches found - System Exception
Matched content
- Home
- Products and Services
- Accessories
- Amplifiers and Preamplifiers
- 87405C Preamplifier, 100 MHz to 18 GHz
87405C Preamplifier, 100 MHz to 18 GHz
Eliminates the need for an additional DC power supply; ideal for spectrum analyzers or standalone applications
Sold by: Keysight Online Sales
Starting from
HIGHLIGHTS
Exceptional gain (25 dB) and flatness (±1.5 dB) combined with a probe-power bias connection which eliminates the need for an additional DC power supply, makes these preamplifiers the ideal choice for spectrum analyzer or stand alone applications.
- 4.5 dB noise figure and 25 dB gain helps improve the dynamic range and sensitivity of your test equipment
- High 15 dBm P1dB increases available power from network and spectrum analyzers
- DC Bias Volt/Amp: +15 V at 140 mA (nominal); -12.6V to -15V at 3mA (nominal)
- Rugged, portable design for ease of use in the field
- Probe-power bias connection eliminates the need for an additional power supply
For more information about usb preamp, microwave amplifier and system amplifier, please visit Keysight Amplifiers.

Interested in a 87405C?
Featured Resources for 87405C Preamplifier, 100 MHz to 18 GHz
Want help or have questions?
- © Keysight Technologies 2000–2023
- Privacy
- Sitemap
- Terms
- Trademark Acknowledgements
- Feedback