The Keysight 8990B is a high-performance peak power analyzer designed to measure the dynamic or time-dependent aspects of RF and microwave power. Featuring two RF channels and two video channels, it provides high-speed sampling up to 100 MSa/s (with a 20 GSa/s effective rate) and a short system rise/fall time of ≤ 5 ns when combined with compatible peak power sensors. Its massive 15-inch XGA touchscreen display allows for comprehensive pulse characterization and simultaneous analysis of time-domain control signals, making it an essential tool for advanced radar, wireless communication, and semiconductor pulse measurements.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | USB 2.0 Host (4 ports), USB 2.0 Device (1 port), LAN (LXI Class C compliant), GPIB (optional) |
| Display | 15-inch color XGA TFT-LCD with touchscreen capability |
| Recommended Calibration Cycle | 1 year |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 100 V AC to 240 V AC (50/60 Hz) / 100 V AC to 120 V AC (400 Hz), 250 VA maximum |
| Operating Temperature | 0 °C to 50 °C |
| Dimensions (W×H×D) | 426 mm × 325 mm × 279 mm |
| Weight | 11.2 kg |
Measurement Performance
| Parameter | Value |
|---|---|
| Frequency Range | 50 MHz to 40 GHz (sensor dependent) |
| Dynamic Range (CW) | -35 dBm to +20 dBm (sensor dependent) |
| Dynamic Range (Pulse) | -35 dBm to +20 dBm (sensor dependent) |
| System Rise/Fall Time | ≤ 5 ns (for frequencies ≥ 500 MHz, -20 dBm to +20 dBm) |
| Maximum Real-Time Sampling Rate | 100 MSa/s |
| Equivalent-Time Sampling Rate | 20 GSa/s |
| Maximum Capture Length | 1 s |
| Maximum Memory Depth | 2 M points |
| RF Inputs Bandwidth | 150 MHz (Channels 1 & 4) |
| Video Inputs Bandwidth | 150 MHz (Channels 2 & 3) |
| RF Inputs Minimum Pulse Width | 50 ns |
| RF Inputs Maximum Pulse Repetition Rate | 10 MHz |
| Time Base Range | 2 ns/div to 100 ms/div |
Channel Configuration
| Parameter | Value |
|---|---|
| RF Input Channels | 2 (Channels 1 & 4) |
| Video Input Channels | 2 (Channels 2 & 3) |
| Total Analog Channels | 4 |
| Power Sensor Compatibility | N1923A, N1924A, U2000 series USB power sensors |
| Internal Zeroing and Calibration | Yes |
Internal Calibrator
| Parameter | Value |
|---|---|
| Calibrator Frequency | 1.05 GHz |
| Calibrator Power Level (1.05 GHz) | 0 dBm ±1.2% |
| Calibrator Signal Type | CW / Pulse modulated (1.05 GHz) |
| Calibrator Repetition Rate | 1 kHz |
| Calibrator Connector Type | Type N (female) |
| Calibrator SWR | 1.05 |
Triggering
| Parameter | Value |
|---|---|
| Trigger Sources | Channel 1, Channel 2, Channel 3, Channel 4, AUX |
| Trigger Level Range (RF Channels 1 & 4) | -20 dBm to +20 dBm |
| Trigger Level Range (Video Channels 2 & 3) | ±8 divisions from center screen (1 MΩ, edge mode) |
Measurement Modes & Analysis
| Parameter | Value |
|---|---|
| Automated Pulse Characterization | 15 parameters with automated pulse delay measurement between channels |
| Statistical Analysis | CCDF (free run and triggered) |
System and User Interface
| Parameter | Value |
|---|---|
| Display Size | 15-inch |
| Display Resolution | XGA (1024 x 768) |
| Touchscreen | Yes |
| Measurement Units | Linear (Watt) or Log (dBm) selectable |
| Color Coded Channels | Yes |
| Removable Hard Drive Option | Yes |
Timebase
| Parameter | Value |
|---|---|
| Internal Timebase Temperature Stability | ±1 ppm (0 °C to 50 °C) |
| Internal Timebase Aging Rate | ±1 ppm per year |
| External Reference Input | 10 MHz (nominal), -10 dBm to +15 dBm, 50 Ω |
Environmental
| Parameter | Value |
|---|---|
| Storage Temperature | -40 °C to +70 °C |
| Operating Humidity | Up to 95% RH at 40 °C (non-condensing) |
| Storage Humidity | Up to 90% RH at 65 °C (non-condensing) |
| Operating Altitude | Up to 3,000 m (10,000 ft) |
| Storage Altitude | Up to 15,300 m (50,000 ft) |
Connectivity & Control
| Parameter | Value |
|---|---|
| LXI Compliance | LXI Class C |
| GPIB Interface Option | Option GPB (adds IEEE-488 interface) |
| USB Ports (Rear) | 4 × USB 2.0 Type-A host, 1 × USB 2.0 Type-B device |
| USB Ports (Front) | 2 × USB 2.0 Type-A host |
| External Reference Connectors | BNC (Input and Output) |
| VGA Video Output Port | 15-pin D-sub |
| DVI Video Output Port | DVI-D |
| LAN Port | RJ-45 (10/100/1000 Base-T) |
System Information
| Parameter | Value |
|---|---|
| Operating System | Windows Embedded Standard 7 |
Compliance
| Parameter | Value |
|---|---|
| EMC Compliance | IEC 61326-1 / EN 61326-1, CISPR 11 / EN 55011 Class A |
| Safety Compliance | IEC 61010-1 / EN 61010-1, UL 61010-1, CAN/CSA-C22.2 No. 61010-1 |
Connectivity
| Parameter | Value |
|---|---|
| USB Device Port | 1 × USB 2.0 Type-B (rear panel, USBTMC compliant) |
Measurements
| Parameter | Value |
|---|---|
| Transmitter Presets | GSM, EDGE, W-CDMA, CDMA, TD-SCDMA, LTE, WiMAX, WLAN, Bluetooth, Radar |
Technology
Diode peak power sensor measurement technology
Applications
RF and microwave pulse power analysis, radar system testing, wireless transceiver measurements
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