Repair and Service Evaluation - HP/Agilent E4407A,E4407B,E4408B,E4411A,E4411B,E4440A,E4443A

Repair and Service Evaluation for HP/Agilent E4407A, E4407B, E4408B, E4411A, E4411B, E4440A, and E4443A spectrum analyzers. This service offering covers diagnostics, repair, calibration, and performance validation of these RF and microwave signal analysis instruments across their operational range.

Technical Specifications

These spectrum analyzers span frequency coverage from 9 kHz to 26.5 GHz, with external mixer capability extending to 325 GHz on select models. Resolution bandwidth (RBW) ranges from 1 Hz or 10 Hz to 5 MHz or 8 MHz. Video bandwidth (VBW) spans 30 Hz to 3 MHz. Amplitude accuracy varies by model: ±0.4 dB to ±1.1 dB, with premium models offering ±0.19 dB to ±0.24 dB absolute accuracy. Displayed Average Noise Level (DANL) reaches -155 dBm baseline, with optional preamplifiers enabling -167 dBm to -168 dBm performance. Third Order Intercept (TOI) is typically +16 dBm or higher. Phase noise specification on higher-end models is -118 dBc/Hz at 10 kHz offset. Sweep times are as fast as 1 ms (zero span) or 4 ms for RF sweep. Warm-up time to guaranteed accuracy is 5 minutes.

Key Features

• E4407A/B: 26.5 GHz maximum, 10 MHz analysis bandwidth, optional 1 Hz narrow RBW, 1 ms sweep time, Power Suite one-button measurements


• E4408B: 26.5 GHz coverage, 4 ms RF sweep, ±1.1 dB amplitude accuracy, fully synthesized design, automatic background alignment, portable rugged construction


• E4411A/B: Portable design, 9 kHz to 1.5 GHz (E4411A) or up to 3 GHz (E4411B), 5 ms sweep time, rapid display update, field-rugged engineering, optional 75 Ohm input and tracking generator


• E4440A: 26.5 GHz maximum, 10 MHz analysis bandwidth with 40 MHz or 80 MHz options, optimized phase noise performance

Typical Applications Signal characterization, RF component testing, transmitter evaluation, interference analysis, and general-purpose microwave measurements.

Compatibility & Integration Common interfaces include GPIB, LAN, USB, RS-232, and parallel connections. High-resolution LCD and color LCD displays are standard across the series.