The Keysight 85024A high-frequency active probe makes it easy to perform in-circuit measurements with minimal circuit loading, featuring an extremely low input capacitance of 0.7 pF shunted by 1 M̧ of resistance. Operating across a wide frequency range of 300 kHz to 3 GHz, it delivers 0 dB nominal gain with excellent flatness, making it an ideal companion for RF design and debugging on spectrum and network analyzers.
Specifications
Physical
| Parameter | Value |
|---|---|
| Power Supply | +15 V (130 mA), -12.6 V (45 mA) from probe power port or external supply |
| Operating Temperature | 0 to 55 °C |
| Weight | 0.255 kg |
RF Input Characteristics
| Parameter | Value |
|---|---|
| Frequency Range | 300 kHz to 3 GHz (usable down to 100 kHz) |
| Input Resistance at DC | 1 MΩ (nominal) |
| Input Capacitance | < 0.7 pF (nominal, at 500 MHz) |
| Maximum Safe RF Input Voltage | ±1.5 V peak |
| Maximum Safe DC Input Voltage | ±50 V |
| Maximum Safe RF Input Voltage (with 10:1 divider) | ±15 V peak |
| Maximum Safe DC Input Voltage (with 10:1 divider) | ±200 V |
Transmission Characteristics
| Parameter | Value |
|---|---|
| Average Gain | 0 dB ± 1.25 dB |
| Gain Flatness (300 kHz to 1 GHz) | ±1.25 dB (relative to average gain) |
| Gain Flatness (1 GHz to 3 GHz) | ±2.5 dB (relative to average gain) |
RF Output & Interface
| Parameter | Value |
|---|---|
| Output Impedance | 50 Ω (nominal) |
| Output Connector Type | Type-N male |
Dynamic Range & Noise
| Parameter | Value |
|---|---|
| 1 dB Compression Point (Input Voltage) | 0.3 V |
| Noise Figure (Below 100 MHz) | < 50 dB |
| Noise Figure (100 MHz to 3 GHz) | < 25 dB |
| Harmonic Distortion | < -30 dBc (at 0.3 V input) |
Power Requirements
| Parameter | Value |
|---|---|
| Power Supply Voltages Required | +15 V (130 mA), -12.6 V (45 mA) |
| Power Supply Current (+15 V) | 130 mA |
| Power Supply Current (-12.6 V) | 45 mA |
Physical & Mechanical Specifications
| Parameter | Value |
|---|---|
| Cable Length | 1.2 m (nominal) |
Accessories & Options
| Parameter | Value |
|---|---|
| 10:1 Divider Input Capacitance | < 0.7 pF |
| 10:1 Divider Input Resistance | 1 MΩ |
| 10:1 Divider Compression Point | 3 V (for 1 dB compression) |
Environmental
| Parameter | Value |
|---|---|
| Storage Temperature | -40 to +75 °C |
| Operating Altitude | 4,600 m |
| Storage Altitude | 15,200 m |
Physical Characteristics
| Parameter | Value |
|---|---|
| Shipping Weight | 1.49 kg |
10:1 Divider
| Parameter | Value |
|---|---|
| Divider Attenuation | 10:1 (20 dB) |
General
| Parameter | Value |
|---|---|
| Compatible Probe Power Supply | Keysight 11899A (for instruments without probe power) |
Technology
Active RF Probe
Applications
In-circuit RF troubleshooting and swept measurements