The Keysight (Agilent) E4426B is an ESG-AP Series RF signal generator covering the 250 kHz to 4.0 GHz frequency range, offering high spectral purity, low phase noise, comprehensive analog modulation capabilities, and an integrated function generator for diverse RF receiver and component testing.
Specifications
Frequency
| Parameter | Value |
|---|---|
| Minimum Frequency | 250 kHz |
| Maximum Frequency | 4 GHz |
| Frequency Resolution | 0.01 Hz |
| External Reference Input Frequency | 1, 2, 5, 10 MHz (±10 ppm) |
| External Reference Input Level | 0.15 to 5 Vrms (into 50 ohms) |
Output
| Parameter | Value |
|---|---|
| Maximum Output Power | +13 dBm |
| Output Power Range | -136 dBm to +13 dBm (250 kHz to 1 GHz), -136 dBm to +10 dBm (1 to 3 GHz), -136 dBm to +7 dBm (3 to 4 GHz) |
| Phase Noise | <-134 dBc/Hz at 20 kHz offset, 1 GHz carrier |
Modulation
| Parameter | Value |
|---|---|
| Modulation | AM, FM, Phase Modulation, Pulse Modulation |
| Sweep Modes | Step sweep (frequency, power, and list) |
| External AM Sensitivity | 1 Vpeak for 100% AM depth |
| External FM Sensitivity | 1 Vpeak for indicated deviation |
| External ̀M Sensitivity | 1 Vpeak for indicated deviation |
General
| Parameter | Value |
|---|---|
| Reference Oscillator | Ovenized high-stability reference oscillator (standard on ESG-AP) |
| Interfaces | GPIB (IEEE-488.2), RS-232 |
| Display | Monochrome LCD |
| Save/Recall Memory Registers | 100 registers (10 sequences of 10 registers) |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 90 to 254 VAC, 45 to 440 Hz |
| Dimensions (W×H×D) | 133 mm H x 426 mm W x 432 mm D |
| Weight | <13.5 kg |
| Rack Height Unit | 3U |
Amplitude
| Parameter | Value |
|---|---|
| Minimum Output Power | -136 dBm |
| Amplitude Resolution | 0.02 dB |
| Output Impedance | 50 ohms |
Spectral Purity
| Parameter | Value |
|---|---|
| SSB Phase Noise (at 20 kHz offset) | <-134 dBc/Hz (1 GHz carrier) |
| SSB Phase Noise (at 100 Hz offset) | <-90 dBc/Hz (1 GHz carrier) |
| Harmonics | <-30 dBc (at <= +4 dBm) |
| SSB Phase Noise (at 10 kHz offset, 1 GHz carrier) | <-130 dBc/Hz |
Frequency Modulation
| Parameter | Value |
|---|---|
| FM Maximum Deviation | up to 10 MHz (wideband FM) |
| FM Resolution | 0.1% of deviation or 1 Hz |
| FM Distortion | <1% (at 1 kHz rate, 100 kHz deviation) |
| FM Modulation Frequency Response | DC to 10 MHz (wideband FM, 3 dB bandwidth) |
Phase Modulation
| Parameter | Value |
|---|---|
| Phase Modulation Max Deviation | 40 rad (at 4 GHz in normal mode) |
| Phase Modulation Resolution | 0.1% of deviation |
| Phase Modulation Distortion | <1% (at 1 kHz rate, normal deviation) |
Amplitude Modulation
| Parameter | Value |
|---|---|
| AM Depth Range | 0 to 100% |
| AM Resolution | 0.1% |
| AM Accuracy | ±(6% of setting + 1%) at 1 kHz rate, depth <= 90% |
| AM Distortion | <1.5% (at 1 kHz rate, 30% depth) |
Pulse Modulation
| Parameter | Value |
|---|---|
| Pulse On/Off Ratio | >80 dB |
| Pulse Rise/Fall Time | <10 ns |
| Minimum Pulse Width | 2 µs |
LF Generator
| Parameter | Value |
|---|---|
| LF Generator Waveforms | Sine, dual-sine, sweep-sine, triangle, ramp, square, noise, pulse |
| LF Generator Frequency Range | 0.1 Hz to 50 kHz (Sine) |
| LF Generator Frequency Resolution | 0.1 Hz |
| LF Generator Output Level Range | 0 to 3 Vp (into 50 ohms) |
| LF Generator Output Impedance | 50 ohms (nominal) |
| LF Generator Frequency Accuracy | Same as internal reference oscillator |
Connectivity
| Parameter | Value |
|---|---|
| RF Output Connector Type | Type-N female |
| Front Panel RF Output Impedance | 50 ohms |
| External Reference Input Connector | BNC female |
| Reference Output Connector | BNC female |
| Sweep Output / Trigger Input Connectors | BNC female |
| AM/FM/Pulse Input Connectors | BNC female |
| LF Output Connector | BNC female |
System & Control
| Parameter | Value |
|---|---|
| GPIB Interface (IEEE-488) | Yes |
| RS-232 Interface | Yes |
| Programming Language Support (SCPI) | Yes |
Physical & Environmental
| Parameter | Value |
|---|---|
| Operating Temperature Range | 0 to 55 °C |
| Storage Temperature Range | -40 to 71 °C |
| Power Supply Voltage Range | 90 to 254 VAC |
| Power Supply Frequency Range | 45 to 440 Hz |
| Power Consumption (Maximum) | <200 W |
| Dimensions (Height) | 133 mm |
| Dimensions (Width) | 426 mm |
| Dimensions (Depth) | 432 mm |
| Weight (Net) | <13.5 kg |
RF Output
| Parameter | Value |
|---|---|
| Output SWR (<= 2 GHz) | < 1.5:1 |
| Output SWR (> 2 GHz to 4 GHz) | < 1.9:1 |
Sweep
| Parameter | Value |
|---|---|
| Sweep Dwell Time Range | 2 ms to 60 s |
| Sweep Points Range | 2 to 401 |
Inputs & Outputs
| Parameter | Value |
|---|---|
| External Modulation Input Impedance | 50 ohms or 600 ohms (selectable, nominal) |
Performance
| Parameter | Value |
|---|---|
| Phase Offset Adjustment Resolution | 0.1° |
Environmental
| Parameter | Value |
|---|---|
| Operating Altitude | Up to 4,600 m (15,000 ft) |
| Storage Altitude | Up to 15,240 m (50,000 ft) |
| Acoustic Noise | < 40 dBA (typical) |
| Operating Humidity | Up to 95% relative humidity at 40 °C (non-condensing) |
Compliance
| Parameter | Value |
|---|---|
| Safety Standards | Conforms to EN 61010-1, IEC 1010-1, CSA C22.2 No. 1010.1 |
| EMC Standards | Conforms to EN 55011 Class A, EN 50082-1 |
Options
| Parameter | Value |
|---|---|
| Option UNB | High output power with mechanical attenuator |
| Option UNW | Pulse modulation |
| Option 1EM | Moves RF output to rear panel |
| Option 1CP | Rackmount kit with handles |
| Option 1CN | Front handle kit |
| Option 1CR | Rack slide kit |
| Option UK6 | Commercial calibration certificate with test data |
Display
| Parameter | Value |
|---|---|
| Display Resolution | 320 x 240 pixels |
| Display Type | Monochrome LCD with yellow-green backlight |
Interfaces
| Parameter | Value |
|---|---|
| Auxiliary I/O Connector | 37-pin sub-D (rear panel) |
Technology
Analog RF Signal Generation
Applications
Receiver test, component test, and local oscillator emulation