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Keysight 87405C Preamplifier

Keysight · Model: 87405C Made to order
Keysight 87405C Preamplifier
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Keysight 87405C delivers 25 dB gain and 4.5 dB noise figure from 100 MHz to 18 GHz, with 15 dBm P1dB for enhanced system performance.

Model 87405C
Manufacturer Keysight
Category RF & Microwave Test Equipment
Availability Made to order

Overview

The Keysight 87405C Preamplifier improves overall system performance with exceptional gain of 25 dB and low noise figure of 4.5 dB. Its probe-power bias connection eliminates the need for an external DC power supply, making it an ideal choice for both spectrum analyzer and standalone applications. Designed for reliable, repeatable measurements in lab and field environments.

Key Features

  • 25 dB gain and ±1.5 dB flatness
  • 4.5 dB noise figure for low-noise performance
  • High 15 dBm P1dB increases available power
  • DC Bias: +15 V at 140 mA (nominal); -12.6V to -15V at 3 mA (nominal)
  • Probe-power bias connection eliminates external power supply
  • Frequency coverage: 100 MHz to 18 GHz
  • Rugged, portable design for field use

Applications

  • Spectrum analyzer enhancement for improved dynamic range
  • Standalone RF measurement and testing
  • Network analyzer applications
  • Field-based RF troubleshooting and diagnostics

Included Accessories

  • 87405C Preamplifier unit
Output Power +16dBm
Gain 25dB
High Frequency (range) 10GHz <= 20GHz
Low Frequency (range) 10MHz <= 100MHz
Keysight 87405C Preamplifier

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Keysight 87405C Preamplifier

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