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Portable Analyzers Take the real-world RF environment back to the lab and replay it whenever you need
Portable Analyzers features the Keysight (formerly Spirent) GSS6450 Record and Playback System.
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Bring Real-World Signals into the Lab for Repeatable RF Testing
Field trials are expensive, slow, and impossible to repeat exactly. Portable analyzers solve this by capturing real-world radio frequency (RF) signals — global navigation satellite system (GNSS), cellular, and Wi-Fi — across three independent ports, then replaying them in the lab on demand. The GSS6450 Record and Playback System records at up to 80 MHz of bandwidth with 80 dB of dynamic range, monitors the RF environment in real time, and runs on battery power in a 2.2 kg portable case. Engineers can validate receivers, navigation systems, and connected devices against authentic signal conditions without returning to the field.
High-Fidelity Field Capture
Record multi-band GNSS, cellular, and Wi-Fi signals across three independent RF ports at up to 80 MHz bandwidth.
Repeatable Lab Replay
Play back captured environments as often as needed to validate receivers and devices under identical RF conditions.
Built-in Signal Monitoring
Use the integrated spectrum analyzer to inspect the RF environment in real time during recording and playback.
Lightweight and Field-Ready
Operate untethered in the field at 2.2 kg, then control the unit via touchscreen, Wi-Fi, or scripted automation.
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Supported standards
Records GPS, GLONASS, Galileo, BeiDou, QZSS, SBAS, WiFi, Cellular Signals
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Frequency range
RF1 Lower L-band 1164-1300MHz, RF1 Upper L-band 1559-1610MHz, RF2 640-2400MHz, RF3 470-6000MHz
Popular Configuration
GSS6450 Record and Playback System
The GSS6450 captures real-world GNSS, cellular, and wideband RF signals across three independent ports for high-fidelity, repeatable playback in the lab.
The GSS6450 captures real-world GNSS, cellular, and wideband RF signals across three independent ports for high-fidelity, repeatable playback in the lab.
GSS6450 Record and Playback System
PNT6450A
The GSS6450 captures real-world GNSS, cellular, and wideband RF signals across three independent ports for high-fidelity, repeatable playback in the lab.
- Record across three independent RF ports covering GNSS L1/L2/L5/B3/E6, Wi-Fi, and LTE/cellular bands
- Maintain high frequency stability during record and playback using an oven-controlled oscillator
- Play back legacy recordings for regression and comparison testing
- Connect two High Speed CAN and CAN FD interfaces for automotive development workflows
- Import user-defined antenna patterns and vehicle dynamics data
- Reconfigure between runs using feature key licensing and field-upgradeable options
- Control the unit via touchscreen, Wi-Fi, web server, or scripted automation
- Deploy at 2.2 kg with a compact form factor for portable field collection
The resource below will help you determine if the GSS6450 Multi-Frequency Record and Playback System is right for your application.
Data Sheet
GSS6450 Multi-Frequency Record and Playback System
White Paper
GNSS Jamming: How to Test the Risks to Safety-Critical and Liability-Critical Systems
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Frequently Asked Questions
Traditional monitoring waits for real customer traffic to surface problems. Active assurance injects synthetic test traffic from test agents at known points in the network, so issues can be detected proactively — before customers experience them — and verified across services that may not have live traffic yet.
Yes. The VisionWorks controller manages physical TestHeads for high-speed Ethernet and IP transport (such as the VisionWorks 7574) alongside Mobile Test Platforms that run OTA tests through commercial handsets. Tests run from both agent types feed the same analytics engine for end-to-end correlation.
The family supports standards-based active tests including Y.1564, MEF 48, RFC 2544, RFC 6349, Two-Way Active Measurement Protocol (TWAMP), and Ethernet operations, administration, and maintenance (EOAM) per Y.1731 and 802.1ag. Mobile testing covers VoLTE, VoNR, VoWi-Fi, SMS, MMS, RCS, video calling, and data services.