Keysight 87405B Preamplifier
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Keysight 87405B delivers 22 dB gain and 5 dB noise figure for enhanced RF signal detection from 10 MHz to 4 GHz, with integrated probe-power bias.
Product details
| Model | 87405B |
| Manufacturer | Keysight |
| Category | RF Amplifiers |
| Availability | Made to order |
Description
Overview
The Keysight 87405B Preamplifier delivers 22–27 dB of gain and a low 5 dB noise figure, giving measurement systems an immediate boost in sensitivity and accuracy. Its compact, field-ready design operates directly from compatible Keysight analyzers, eliminating the need for an external power supply. This preamplifier is designed for RF engineers who need reliable, repeatable performance in both lab and field environments.
Key Features
- 22–27 dB gain for enhanced signal detection
- 5 dB noise figure for low-noise operation
- 8 dBm output power
- DC Bias: +15 V at 80 mA
- Integrated bias regulation, no external power supply needed
- Frequency coverage: 10 MHz to 4 GHz
- Compact, portable design
Applications
- Low-level RF signal detection and measurement
- Spectrum analyzer enhancement for improved dynamic range
- Field-based RF testing and troubleshooting
- Lab-based signal analysis
Included Accessories
- 87405B Preamplifier unit
Specifications
| High Frequency (range) | 1GHz <= 10GHz |
| Low Frequency (range) | DC <= 1kHz |
| Amplifier Type | Pre-Amplifier |
| Maximum Frequency | 4 GHz |
| Minimum Frequency | 10 MHz |
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Keysight 87405B Preamplifier
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