Keysight (Agilent)
Keysight (Agilent) E8257D
Option 513 (100 kHz to 13 GHz) – PSG Analog Signal Generator, 3.5 mm (m)
100 kHz to 13 GHz Frequency Range
0.001 Hz Frequency Resolution
< 11 ms (typ.) Switching Speed
10 MHz, ±3 × 10⁻⁸ per year Timebase Aging
GPIB, LAN, RS-232 Interfaces

| Attribute | Value |
|---|---|
| Frequency Range | 100 kHz to 13 GHz |
| Frequency Resolution | 0.001 Hz |
| Switching Speed | < 11 ms (typ.) |
| Timebase Aging | 10 MHz, ±3 × 10⁻⁸ per year |
| Interfaces | GPIB, LAN, RS-232 |
| Output Power | -20 to +15 dBm; up to +28 dBm (depending on configuration) |
| SSB Phase Noise | -130 dBc/Hz at 1 GHz, 20 kHz offset (spec.) |
| Modulation | AM, FM, ΦM, pulse (depending on configuration) |
| Level Accuracy | ±0.6 dB at 250 kHz to 2 GHz, ±0.8 dB at 2 to 20 GHz (spec.) |
| Harmonics | < -55 dBc at 2 to 20 GHz (spec.) |
| Non-Harmonics | < -80 dBc at 250 MHz to 1 GHz, > 3 kHz offset (spec.) |
| Sweep Modes | step sweep, list mode, ramp sweep, power sweep |
| RF Output Connector | 3.5 mm male or Type-N female; 2.4 mm male; 1.85 mm male (depending on configuration) |
| Dimensions | 426 × 178 × 515 mm |
| Weight | < 22 kg |
Available configurations
| Model | Frequency range | Configuration |
| E8257D-513 | 100 kHz to 13 GHz | Analog signal generator |
| E8257D-520 | 100 kHz to 20 GHz | Analog signal generator |
| E8257D-521 | 10 MHz to 20 GHz | Analog signal generator |
| E8257D-532 | 100 kHz to 31.8 GHz | Analog signal generator |
| E8257D-540 | 100 kHz to 40 GHz | Analog signal generator |
| E8257D-550 | 100 kHz to 50 GHz | Analog signal generator |
| E8257D-567 | 100 kHz to 67 GHz | Analog signal generator |
Keysight (Agilent) E8257D-513 250 kHz to 13 GHz Signal Generator Options:
- E8257D-513 - 007 - Analog ramp sweep
- E8257D-513 - 008 - 8 GB removable flash memory
- E8257D-513 - UNX - Ultra low phase noise
- E8257D-513 - UNT - AM, FM, phase modulation, and LF output
- E8257D-513 - UNU - Pulse modulation
- E8257D-513 - UNW - Narrow pulse modulation
- E8257D-513 - 1E1 - Step attenuator
- E8257D-513 - 1ED - Type-N (f) RF output connector
- E8257D-513 - 1EH - Improved harmonics below 2 GHz (low-pass filters)
- E8257D-513 - 1EM - Moves all front panel connectors to the rear panel
- E8257D-513 - 1EU - High output power
- E8257D-513 - 1CN - Front handle kit
- E8257D-513 - 1CM - Rackmount flange kit
- E8257D-513 - 1CP - Rackmount flange and front handle kit
- E8257D-513 - 1SM - Scan modulation
- E8257D-513 - C09 - Move all front panel connectors to the rear panel except for the RF output connector
- E8257D-513 - H1S - 1 GHz external frequency reference input and output
- E8257D-513 - HCC - Connections for phase coherency > 250 MHz
- E8257D-513 - UK6 - Commercial calibration certificate and test data
- E8257D-513 - CD1 - CD-ROM containing the English documentation set
- E8257D-513 - ABA - Printed copy of the English documentation set
- E8257D-513 - 0BW - Printed copy of the assembly-level service guide
The Keysight (Agilent) E8257D-513 is a high-performance analog signal generator offering output from 250 kHz to 13 GHz, with industry-leading power, level accuracy, and phase noise down to -126 dBc/Hz at 10 GHz carrier.
It supports CW signals and optional AM, FM, ØM, and pulse modulation to address diverse RF and microwave testing needs, with modular upgrades for future expansion.
Testwall can supply the used Keysight (Agilent) E8257D-513, 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) E8257D-513.
Options and configurations
- Frequency Range: 100 kHz to 13 GHz (Opt. 513)
- Output Power: -20 to +15 dBm (Opt. 513/520), +11 dBm (Opt. 532/540), +5 dBm (Opt. 550/567); up to +21 dBm with Opt. 1EU; up to +28 dBm (Opt. 521); -135 dBm with Opt. 1E1
- SSB Phase Noise: -130 dBc/Hz at 1 GHz, 20 kHz offset (spec.); -138 dBc/Hz at 1 GHz, 10 kHz offset with Opt. UNY (spec.)
- Modulation: AM, FM, ΦM (Opt. UNT), pulse (Opt. UNU/UNW)
- Sweep Modes: step sweep, list mode, ramp sweep (Opt. 007), power sweep
- RF Output Connector: 3.5 mm male or Type-N female (Opt. 1ED) (Opt. 513/520/521); 2.4 mm male (Opt. 532/540/550); 1.85 mm male (Opt. 567)





