Preserve Real-World RF Conditions as Reusable Test Assets
GNSS signal recording and playback systems capture the live RF environment observed at the antenna, store it as a reusable dataset, and replay it in a controlled laboratory setup.
The recording preserves conditions that occurred during the original route or field campaign, including satellite geometry, signal blockage, multipath, interference and other environmental behavior that may be difficult to recreate synthetically.
Engineering teams can then run different receivers, firmware versions or navigation algorithms against the same recorded RF environment. This makes field failures easier to reproduce and regression results easier to compare.
The product family includes a full-band laboratory system and two portable platforms. Selection depends on deployment format, required RF bands, antenna architecture and recording duration.
Recording and simulation are complementary. Simulation provides controlled parameter variation; recording and playback preserves the complexity of an RF environment that already occurred in the field.
Select the Recording Platform by Test Architecture
Start with laboratory versus portable deployment. For portable recording, determine whether the receiver uses one antenna path or two synchronized antenna paths.
Laboratory or Portable?
Choose SSR8000 for a structured full-band laboratory platform. Choose the MZ series when portable field acquisition is the priority.
Single or Dual Antenna?
Choose MZ302P for one antenna path. Choose MZ303P when two antenna environments must be captured and replayed together.
Bands, Data Rate and Duration
Confirm required GNSS bands, sampling settings, enabled channels and route duration before selecting storage and final configuration.
SSR8000
Full-band laboratory recording and playback system with expandable real-time storage, configurable playback level, positioning output and post-processing support.
A structured laboratory platform is required for long-duration field-to-lab validation, scenario archiving and repeated receiver regression.
Explore SSR8000MZ302P
Portable single-antenna recording and playback system with four independently configurable RF channels, 1.1–2.5 GHz coverage and expandable 2–8 TB storage.
One antenna path is sufficient and the system must support portable route recording, field acquisition and receiver regression.
Explore MZ302PMZ303P
Portable dual-antenna platform with two synchronized RF paths, four configurable channels per path, two RF inputs and two replay outputs.
The receiver uses two antenna inputs for positioning, heading, orientation or moving-baseline processing.
Explore MZ303PSystem Comparison
| Selection Factor | SSR8000 | MZ302P | MZ303P |
|---|---|---|---|
| Platform format | Laboratory system | Portable field system | Portable field system |
| Recording scope | Full GNSS L-band | 1.1–2.5 GHz | 1.1–2.5 GHz |
| Antenna architecture | Configured laboratory acquisition | Single antenna | Dual antenna |
| RF channel architecture | Configurable full-band recording | 4 configurable channels | 4 × 2 configurable channels |
| RF inputs and outputs | Based on selected laboratory configuration | 1 RF input / 1 RF output | 2 RF inputs / 2 RF outputs |
| Storage | Expandable real-time storage | 2 TB standard / up to 8 TB | 2 TB standard / up to 8 TB |
| Primary workflow | Laboratory regression and scenario archive | Portable single-antenna field recording | Portable dual-antenna synchronized recording |
| Best fit | Full-band field-to-lab validation and long-duration campaigns | Route capture, fault reproduction and receiver regression | Positioning, heading, orientation and moving-baseline tests |
Recording & Playback Systems
Three platforms for different recording architectures.
Select a laboratory, portable single-antenna or portable dual-antenna platform according to the RF channel architecture, deployment environment and validation workflow.
System
Full-Band Laboratory Platform
SSR8000
Full-band GNSS signal recorder and replayer for controlled laboratory regression and fault reproduction.
Permanent GNSS laboratories, receiver development programs and repeatable long-duration validation.
The SSR8000 is the laboratory-oriented platform in the family. It captures real-world GNSS RF environments, stores them for controlled reuse and replays the recorded signals into receiver test workflows. Expandable storage and configurable playback support long-duration field campaigns, regression testing and engineering analysis.
Key capabilities
- Full GNSS L-band signal recording
- Real-time acquisition and expandable storage
- Configurable RF playback into the device under test
- Repeatable replay of archived field environments
- Real-time positioning data for test correlation
- Post-processing support for signal analysis workflows
- Platform
- Laboratory system
- Signal scope
- Full GNSS L-band
- Storage
- Real-time, expandable capacity
- Playback
- Configurable RF output
- Typical use
- Regression and fault reproduction
System
Portable Single-Antenna Platform
MZ302P
Portable 4-channel GNSS signal recorder and replayer for single-antenna field acquisition and controlled replay.
Portable field recording, single-antenna receivers, route testing and field-to-laboratory regression.
The MZ302P provides four independently configurable RF channels in a portable platform. It is designed for teams that need to collect operational GNSS signal environments outside the laboratory and replay selected recordings during receiver development, troubleshooting and repeatability testing.
Key capabilities
- Four independently configurable RF channels
- 1.1–2.5 GHz signal acquisition range
- Selectable bandwidth, sampling and quantization
- Single RF input and RF playback output architecture
- Expandable 2–8 TB recording storage
- Portable field-to-laboratory workflow
- Platform
- Portable, single-antenna
- RF channels
- 4 channels
- Frequency
- 1.1–2.5 GHz
- Storage
- 2–8 TB
- Typical use
- Portable field recording
System
Portable Dual-Antenna Platform
MZ303P
Dual-antenna GNSS signal recorder and replayer with a synchronized 4 × 2 RF channel architecture.
Dual-antenna positioning, heading evaluation, baseline measurement and synchronized two-path capture.
The MZ303P extends the portable recording architecture to two synchronized antenna paths, with four RF channels assigned to each path. It enables field capture and controlled replay for receivers that depend on dual-antenna geometry, positioning, orientation or moving-baseline measurements.
Key capabilities
- Two synchronized GNSS antenna paths
- 4 × 2 RF channel architecture
- Two RF inputs and two RF playback outputs
- 1.1–2.5 GHz signal acquisition range
- Expandable 2–8 TB recording storage
- Replay support for dual-path receiver validation
- Platform
- Portable, dual-antenna
- RF channels
- 4 × 2 channels
- RF paths
- 2 synchronized paths
- Storage
- 2–8 TB
- Typical use
- Heading and dual-antenna testing
Key Test Capabilities
Capture field signal complexity once, then reuse it across validation.
Recording and playback preserves the RF conditions observed during a field campaign, allowing engineering teams to repeat the same signal environment without returning to the original location.
Signal Acquisition
Real-World RF Capture
Record the GNSS signal environment present at a specific place and time, including satellite visibility, multipath and surrounding RF conditions.
Controlled Replay
Repeatable Receiver Input
Replay archived recordings into the device under test so receiver behavior can be compared against the same field-derived signal input.
Engineering Analysis
Regression & Fault Reproduction
Reproduce an archived signal event after firmware, hardware or algorithm changes to support debugging, regression and root-cause analysis.
Dual-Path Testing
Dual-Antenna Validation
Capture and replay two synchronized GNSS antenna paths for positioning, heading, orientation and moving-baseline receiver workflows.
Application Scenarios
Match the platform to the validation workflow.
The recommended platform depends on whether the test is laboratory-based, portable, single-antenna or dual-antenna.
Final configuration depends on bandwidth, channel count, storage duration and receiver architecture.
Laboratory Regression Testing
Maintain a reusable library of field recordings for repeated receiver firmware, algorithm and hardware validation.
Portable Route & Site Recording
Collect real-world signal environments during road, rail, UAV or site testing and return the recordings to the laboratory.
Fault Reproduction & Root-Cause Analysis
Replay the field signal environment present during a receiver anomaly to support controlled troubleshooting.
Heading & Baseline Validation
Preserve two synchronized antenna signal paths for dual-antenna positioning, heading and orientation receiver testing.
Urban Canyon & Multipath Capture
Record signal behavior in locations where surrounding structures, satellite visibility and local geometry influence receiver performance.
Field Data for Algorithm Development
Build reusable signal datasets for receiver algorithm evaluation, navigation research and repeatable engineering comparison.
Recording-to-Replay Workflow
Turn a field signal environment into a repeatable laboratory input.
A reliable recording workflow starts before the field campaign. Receiver architecture, RF bandwidth, storage duration and playback objectives should be defined before selecting the final platform.
Define
Set the Test Objective
Identify the receiver architecture, signal bands, field environment and engineering question the recording must support.
Configure
Configure RF Acquisition
Select the required RF paths, channels, bandwidth, sampling, quantization and storage configuration.
Capture
Record the Field Environment
Acquire the operational GNSS signal environment at the target location, route or test condition.
Manage
Review & Archive the Data
Organize recordings by test route, date, receiver condition and observed event for later reuse.
Replay
Repeat the Receiver Test
Replay selected recordings into the receiver and compare behavior across firmware, hardware or algorithm revisions.
Configuration Planning
Define these requirements before selecting a system.
These inputs determine the appropriate model, RF architecture, storage configuration and field accessories.
Receiver
01Single or Dual Antenna
A single-antenna receiver can use the MZ302P or SSR8000. Dual-antenna recording workflows generally require the two-path architecture of the MZ303P.
Deployment
02Laboratory or Portable
Select SSR8000 for a permanent laboratory workflow, or an MZ portable platform when recording must take place on a vehicle, route or remote site.
Signal
03Frequency Range & Bandwidth
Confirm the GNSS bands, required instantaneous bandwidth and whether adjacent or non-GNSS RF content must be included in the recording.
Data
04Recording Duration & Storage
Storage consumption depends on active channels, bandwidth, sampling rate, quantization and total recording duration.
Playback
05Replay Level & Test Connection
Confirm the required replay path, RF connection to the receiver, output-level range and whether repeated or selected-interval playback is needed.
Timing
06Synchronization Requirements
For dual-antenna testing, specify whether synchronized capture is sufficient or whether the application requires a defined phase relationship between RF paths.
Frequently Asked Questions
GNSS signal recording and playback questions.
Compare recording architectures, understand configuration variables and determine where record-and-replay fits within a complete receiver validation program.
01 What is GNSS signal recording and playback?
A GNSS signal recording and playback system captures the live GNSS and RF environment present at the antenna, stores the sampled signal data and later replays that recording into a receiver under controlled laboratory conditions.
02 How is record-and-replay different from GNSS signal simulation?
A GNSS simulator generates controlled signal scenarios from configured parameters. Record-and-replay preserves an actual field environment, including the satellite visibility, multipath and RF conditions present during the original capture.
03 Which recording and playback system should I choose?
Choose SSR8000 for a full-band laboratory platform and expandable recording workflow. Choose MZ302P for portable single-antenna recording. Choose MZ303P when two synchronized antenna paths must be captured and replayed together.
04 What is the difference between MZ302P and MZ303P?
MZ302P is a portable single-antenna system with four configurable RF channels. MZ303P uses two synchronized antenna paths with four RF channels per path, making it better suited to dual-antenna positioning, heading and moving-baseline workflows.
05 What determines the available GNSS recording duration?
Recording duration depends on storage capacity, the number of active channels, signal bandwidth, sampling rate and quantization. A final duration estimate should be calculated from the planned acquisition configuration.
06 Can record-and-replay replace field testing?
No. Record-and-replay improves repeatability by reusing a captured field environment, but it only reproduces the conditions contained in that recording. Field testing remains important for installation and operational confirmation.
07 Does synchronized dual-antenna recording mean phase-coherent recording?
Not automatically. Synchronized capture confirms coordinated recording across two RF paths, while phase-coherent measurement can require additional architecture and calibration. Confirm the phase relationship required by the application before selecting the final configuration.
Configuration Support
Build the right field-to-laboratory recording workflow.
Send us your receiver architecture, antenna count, target frequency range, recording duration, storage requirement and playback objective. Our engineering team can help confirm the appropriate SSR8000, MZ302P or MZ303P configuration.