Agilent/Keysight E4411A

The Agilent/Keysight E4411A is a portable spectrum analyzer delivering signal analysis across 9 kHz to 1.5 GHz with optional extension to 1 MHz. Built for R&D, manufacturing, and field service environments, it combines a 15.8 cm high-resolution LCD display with measurement capability from −120 dBm to +30 dBm (50 Ω input). The instrument achieves phase noise of ≤−90 dBc/Hz at 10 kHz offset and residual FM ≤100 Hz P-P, with 2nd and 3rd order dynamic ranges of ≥78 dB and ≥85 dB respectively. Resolution bandwidths span 1 kHz to 3 MHz, and a 5 ms sweep time enables rapid signal characterization. The 85 dB logarithmic range with 10-division display resolution supports both laboratory and mobile deployment. Frequency accuracy is ±2.0 kHz at 1 GHz without temperature compensation. Operating temperature range is 0 °C to +55 °C, with warm-up to specified performance achieved in 5 minutes. Rugged construction includes sealed front panel, louvered air vents, side-mounted fan, and rubber-encased frames for field resilience.

– Technical Specifications

• Frequency Range: 9 kHz to 1.5 GHz (Option 1DP extends lower limit to 1 MHz)
• Frequency Accuracy: ±2.0 kHz at 1 GHz (uncompensated)
• Amplitude Range: −120 dBm to +30 dBm at 50 Ω; −65 dBmV to +72 dBmV at 75 Ω with Option 1DP
• Logarithmic Range: 85 dB across 10 display divisions
• Phase Noise: ≤−90 dBc/Hz at 10 kHz offset
• Residual FM: ≤100 Hz P-P
• 2nd Order Dynamic Range: ≥78 dB
• 3rd Order Dynamic Range: ≥85 dB
• Resolution Bandwidth: 1 kHz to 3 MHz
• Sweep Time: 5 ms
• Warm-up Time: 5 minutes to specified performance
• Display: 15.8 cm high-resolution LCD
• Operating Temperature: 0 °C to +55 °C
• Storage Temperature: −40 °C to +75 °C

– Key Features

• Portable design with rugged, sealed construction
• Dual-impedance input capability: 50 Ω standard, optional 75 Ω
• Optional tracking generator (1DN-1DQ) for transmission measurements
• Multiple interface options: GPIB (Option A4H), RS-232/parallel (Option 1AX), and IF/sweep/video outputs (Option A4J)

– Typical Applications

• Field service signal verification
• Manufacturing RF and microwave signal validation
• Laboratory research and development
• Component and subsystem characterization

– Compatibility & Integration

Available interface modules support GPIB-based system integration, parallel port control, RS-232 serial communication, and direct IF/sweep/video signal extraction for external processing.