Keysight (Agilent)
Keysight (Agilent) E4400B
250KHz - 1 GHz Analogue RF Signal Generator
250 kHz to 1 GHz Frequency Range
AM, FM, ΦM, pulse Modulation
0.01 Hz Frequency Resolution
< 50 ms (typ.) Switching Speed
Type-N female, front panel RF Output Connector

| Attribute | Value |
|---|---|
| Frequency Range | 250 kHz to 1 GHz |
| Modulation | AM, FM, ΦM, pulse |
| Frequency Resolution | 0.01 Hz |
| Switching Speed | < 50 ms (typ.) |
| RF Output Connector | Type-N female, front panel |
| Output Power | -136 to +13 dBm |
| SSB Phase Noise | -116 dBc/Hz at 1 GHz, 20 kHz offset (typ.) |
| Level Accuracy | ±0.5 dB (spec.) at +7 to -120 dBm |
| Harmonics | < -30 dBc at ≤ +4 dBm |
| Sweep Modes | step sweep, list mode (2 to 401 points) |
| Timebase Aging | < ±1 ppm per year |
| Interfaces | GPIB, RS-232 |
| Dimensions | 426 × 133 × 432 mm |
| Weight | < 13.5 kg |
Keysight Technologies E4400B Options:
- E4400B - OB0 - Deletes the standard manual set
- E4400B - OB1 - Adds extra manual set
- E4400B - OBV - Adds service documentation, component level
- E4400B - OBW - Adds service documentation, assembly level
- E4400B - OBX - Adds service documentation, assembly and component level
- E4400B - 1CM - Adds rack mount kit, part number 5063-9214
- E4400B - 1CN - Adds front handle kit, part number 5063-9227
- E4400B - 1CP - Adds rack mount kit with handles, part number 5063-9221
- E4400B - 1E5 - Adds high-stability timebase
- E4400B - 1E6 - High-performance pulse modulation
- E4400B - 1EM - Moves all front panel connectors to rear panel
- E4400B - UNB - Adds higher power with mechanical attenuator
- E4400B - W50 - Adds additional warranty for a total of five years
The Keysight (Agilent) E4400B ESG-A RF Signal Generator delivers high precision in frequency and power control, featuring wideband FM, phase, AM, and pulse modulation, built-in function generator, and step sweep capabilities.
It supports component, receiver, and local oscillator testing with flexible upgrade options and superior level accuracy.
Testwall can supply the used Keysight (Agilent) E4400B, fully tested. With expert support and global delivery, Testwall ensures high-performance instrumentation with unmatched reliability and service quality. Please contact us directly if you need calibration or repair of the Keysight (Agilent) E4400B.
Options and configurations
- Output Power: -136 to +13 dBm (+17 dBm with Opt. UNB; -4 dB with Opt. 1E6)
- Harmonics: < -30 dBc at ≤ +4 dBm (+7.5 dBm with Opt. UNB)
- Timebase Aging: < ±1 ppm per year (< ±0.1 ppm per year with Opt. 1E5)





