The Keysight (Agilent) E4435B is a 2 GHz RF vector signal generator from the ESG-DP Series. It offers excellent spectral purity and advanced digital modulation capabilities, making it a highly reliable and versatile standard for general-purpose research and development, troubleshooting, and manufacturing applications.
Specifications
Frequency
| Parameter | Value |
|---|---|
| Minimum Frequency | 250 kHz |
| Maximum Frequency | 2 GHz |
| Frequency Resolution | 0.01 Hz |
| Residual FM | < 1 Hz RMS (at 1 GHz carrier, 300 Hz - 3 kHz bandwidth, CCITT) |
| Number of Frequency Bands | 4 bands (250 kHz to 250 MHz, 250 to 500 MHz, 500 to 1000 MHz, 1000 to 2000 MHz) |
Output
| Parameter | Value |
|---|---|
| Maximum Output Power | +13 dBm |
| Output Power Range | -136 to +13 dBm |
| Phase Noise | <-134 dBc/Hz at 20 kHz offset, 1 GHz carrier |
Modulation
| Parameter | Value |
|---|---|
| Modulation | AM, FM, Phase Modulation, Pulse Modulation, Custom Digital Modulation (FSK, MSK, PSK, QAM) |
| Sweep Modes | Step sweep (frequency and power), List sweep (frequency and power) |
| External Modulation Inputs | EXT 1 (AC/DC coupled), EXT 2 (AC/DC coupled) |
| External Modulation Input Sensitivity | 1 Vpeak for indicated deviation |
| I/Q Input Impedance | 50 ohms |
General
| Parameter | Value |
|---|---|
| Reference Oscillator | High-stability ovenized crystal oscillator (OCXO) |
| Interfaces | GPIB, RS-232 |
| Display | LCD graphic display |
| Recommended Calibration Cycle | 24 months |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 90 to 254 VAC, 47 to 440 Hz |
| Dimensions (W×H×D) | 133 mm H × 426 mm W × 432 mm D |
| Weight | 13.5 kg |
Frequency Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 250 kHz to 2 GHz |
| Frequency Switching Speed | < 9 ms (typical) |
| Temperature Stability | < 1 x 10^-8 (0 to 55 °C) |
| External Reference Input Frequency | 1, 2, 5, 10 MHz (± 10 ppm) |
| External Reference Input Level | -3.5 to +20 dBm |
Output Power and Amplitude
| Parameter | Value |
|---|---|
| Amplitude Range | -136 to +13 dBm |
| Amplitude Resolution | 0.02 dB |
| Output Impedance | 50 ohms nominal |
| Voltage Standing Wave Ratio (VSWR) | < 1.5:1 |
| Maximum Reverse Power | 50 W (DC to 2 GHz) |
Spectral Purity
| Parameter | Value |
|---|---|
| SSB Phase Noise at 20 kHz Offset | <-134 dBc/Hz (at 1 GHz carrier) |
| Harmonics | <-30 dBc (at levels < +4 dBm) |
Analog Modulation
| Parameter | Value |
|---|---|
| FM Rate (3 dB Bandwidth) | DC to 100 kHz (DC-coupled), 20 Hz to 100 kHz (AC-coupled) |
| FM Distortion | < 1% (at 100 kHz deviation, 1 kHz rate) |
| AM Depth Range | 0 to 100% |
| AM Rate (3 dB Bandwidth) | DC to 10 kHz (DC-coupled), 10 Hz to 10 kHz (AC-coupled) |
| AM Distortion | < 1.5% (at 30% depth, 1 kHz rate) |
| Phase Modulation (ΦM) Maximum Deviation | N x 90 rad |
| Phase Modulation Rate | DC to 100 kHz |
| Pulse Modulation On/Off Ratio | > 80 dB |
| Pulse Rise/Fall Time | < 150 ns |
| Minimum Pulse Width | 2 us |
Vector and Digital Modulation
| Parameter | Value |
|---|---|
| I/Q Modulation Bandwidth | 10 MHz (External I or Q, 1 dB BW) |
| Baseband Generator Sample Rate | 40 MHz (with dual ARB option) |
| Baseband Generator Resolution | 14-bit |
| Baseband Waveform Playback Memory | 1 Msample (4 MB) |
| Baseband Waveform Storage Memory | 1 Msample (4 MB) |
Sweep Capabilities
| Parameter | Value |
|---|---|
| Dwell Time Range | 2 ms to 60 s |
| Number of Step Points | 2 to 401 (step sweep) |
Connectivity and Interfaces
| Parameter | Value |
|---|---|
| RF Output Connector Type | Type-N female |
| GPIB Interface | IEEE-488.2 |
| RS-232 Interface | DB-9 male |
| I/Q Input Connectors | BNC female (front panel) |
| 10 MHz Reference Input/Output | BNC female (rear panel) |
Physical and Environmental
| Parameter | Value |
|---|---|
| Operating Temperature Range | 0 to 55 °C |
| Storage Temperature Range | -40 to 71 °C |
| Relative Humidity Range | Up to 95% at 40 °C |
| Power Requirements | 90 to 254 VAC, 47 to 440 Hz |
| Power Consumption | < 250 W |
Compliance and Safety
| Parameter | Value |
|---|---|
| Electromagnetic Compatibility (EMC) | Conforms to EN 55011 Class A, EN 50082-1 |
| Safety Standards Compliance | CSA C22.2 No. 1010.1, EN 61010-1 |
Internal Modulation Source (LF Generator)
| Parameter | Value |
|---|---|
| LF Generator Waveforms | Sine, square, triangle, ramp, noise, dual-sine, swept-sine |
| LF Generator Frequency Range (Sine) | 0.1 Hz - 50 kHz |
| LF Generator Frequency Range (Other Waveforms) | 0.1 Hz - 10 kHz (square, triangle, ramp) |
| LF Generator Frequency Resolution | 0.1 Hz |
| LF Generator Output Impedance | 50 Ω (nominal) |
Phase
| Parameter | Value |
|---|---|
| Phase Offset Resolution | 0.1° |
Modulation Inputs
| Parameter | Value |
|---|---|
| External Modulation Input Impedance | 50 Ω or 600 Ω (nominal, selectable) |
Sweep & Trigger
| Parameter | Value |
|---|---|
| Sweep Trigger Modes | Auto, External, Single, GPIB |
Memory
| Parameter | Value |
|---|---|
| Save/Recall Registers | 100 registers (10 sequences of 10 registers) |
Environmental
| Parameter | Value |
|---|---|
| Maximum Operating Altitude | 4,600 m (15,000 ft) |
User Interface
| Parameter | Value |
|---|---|
| Display Resolution | 320 x 240 pixels |
| Display Type | Monochrome LCD with backlighting |
RF Output
| Parameter | Value |
|---|---|
| Attenuator Type | Electronic |
Control & Programming
| Parameter | Value |
|---|---|
| Command Emulation Compatibility | HP 8648A/B/C/D, HP 8656B, HP 8657A/B/D |
Low Frequency (LF) Generator
| Parameter | Value |
|---|---|
| LF Generator Frequency Accuracy | Same as reference oscillator |
Connectivity
| Parameter | Value |
|---|---|
| Auxiliary I/O Connector | 37-pin D-sub |
Sweep
| Parameter | Value |
|---|---|
| Sweep Trigger Sources | Free run, Trigger key, External, GPIB/bus |
Technology
RF Vector Signal Generator
Applications
General-purpose R&D, manufacturing, and RF troubleshooting