Keysight (Agilent)
Keysight (Agilent) N5166B
Option 503 (9 kHz to 3 GHz) – CXG Vector Signal Generator
9 kHz to 3 GHz Frequency Range
±0.6 dB, max. to -60 dBm Level Accuracy
0.001 Hz Frequency Resolution
< -35 dBc at 9 kHz to 3 GHz Harmonics
-60 to -65 dBc, >10 kHz offset Non-Harmonics

| Attribute | Value |
|---|---|
| Frequency Range | 9 kHz to 3 GHz |
| Level Accuracy | ±0.6 dB, max. to -60 dBm |
| Frequency Resolution | 0.001 Hz |
| Harmonics | < -35 dBc at 9 kHz to 3 GHz |
| Non-Harmonics | -60 to -65 dBc, >10 kHz offset |
| Output Power | -144 to +18 dBm at 10 MHz to 3 GHz |
| SSB Phase Noise | -119 dBc/Hz at 1 GHz, 20 kHz offset (typ.) |
| Modulation | AM, FM, ΦM, pulse, I/Q (depending on configuration) |
| Switching Speed | ≤ 5 ms (typ.) |
| Sweep Modes | step sweep, list mode |
| Timebase Aging | < ±1 × 10⁻⁶ per year |
| RF Output Connector | Type-N female |
| Interfaces | GPIB, LAN (LXI), USB |
| Dimensions | 426 × 88 × 489 mm |
| Weight | 15.9 kg (nom.) |
Available configurations
| Model | Frequency range | Configuration |
| N5166B-503 | 9 kHz to 3 GHz | Vector signal generator |
| N5166B-506 | 9 kHz to 6 GHz | Vector signal generator |
Keysight (Agilent) N5166B-503 CXG RF Options:
- N5166B-503 - 503 - Frequency range 9 kHz to 3 GHz
- N5166B-503 - 1ER - External reference input 1 to 50 MHz (in multiples of 0.1 Hz)
- N5166B-503 - UNT - AM, FM, and Phase modulation
- N5166B-503 - UNW - Narrow pulse modulation and internal pulse train generator
- N5166B-503 - 303 - Multifunction generator
- N5166B-503 - 653 - Internal baseband generator (up to 75 MSa/s, 60 MHz RF bandwidth)
- N5166B-503 - 655 - Wideband baseband generator upgrade (up to 150 MSa/s, 120 MHz RF bandwidth; requires option 653)
- N5166B-503 - 660 - Real-time baseband generator
- N5166B-503 - 009 - Extended storage capacity (30 GB / 7.5 GSa)
- N5166B-503 - 022 - Extended playback memory (512 MSa) and extended direct-pattern RAM (1024 Mb)
- N5166B-503 - N5180320B - Pulse train generator
- N5166B-503 - N5180403B - AWGN (Additive White Gaussian Noise)
- N5166B-503 - N5180430B - Multitone and two-tone
- N5166B-503 - N5180431B - Custom modulation (ARB mode and real-time mode)
The Keysight (Agilent) N5166B-503 CXG RF Vector Signal Generator offers a frequency range from 9 kHz to 3 or 6 GHz and up to 120 MHz RF modulation bandwidth, enabling basic parametric testing and functional receiver verification with precision.
It generates multiple, verified, standards-compliant vector signals for reliable component testing and system troubleshooting within wireless communication environments.
Testwall can supply the used Keysight (Agilent) N5166B-503 CXG RF, 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) N5166B-503 CXG RF.
Options and configurations
- Frequency Range: 9 kHz to 3 GHz (Opt. 503)
- Modulation: AM, FM, ΦM (Opt. UNT), pulse (Opt. UNW), I/Q
- Modulation Bandwidth: 120 MHz RF (I+Q) internal with Opt. 653/655 (nom.)





