MZ303P Dual-Antenna GNSS Signal Recorder & Replayer
Capture and replay two synchronized GNSS RF signal paths with a 4 × 2 channel architecture. The MZ303P is designed for dual-antenna positioning, heading, baseline measurement and repeatable field-to-laboratory validation.
- Two synchronized antenna paths
- Four channels per RF path
- Portable field-ready platform
Capture Two RF Environments on One Recording Timeline
Dual-antenna GNSS systems do not evaluate only the signal received by each antenna. They also depend on the relationship between two signal paths during the same movement, obstruction and RF event.
The MZ303P provides two synchronized antenna paths, with four independently configurable RF channels available for each path. This allows engineers to capture concurrent GNSS signal conditions instead of repeating the same field route separately for each antenna.
Recorded RF and associated serial data can then be replayed in a controlled laboratory environment. The resulting workflow is designed for repeatable dual-antenna receiver testing, positioning analysis, heading verification and field-failure reproduction.
Two Antenna Paths
Capture two simultaneous RF inputs instead of recording each antenna independently in separate field sessions.
4 × 2 Channel Architecture
Configure four RF channels for each antenna path to cover the GNSS bands required by the receiver and test scenario.
Synchronized Replay
Replay the two recorded RF paths on a common timeline for controlled dual-antenna receiver and algorithm testing.
Parallel RF Paths with a Shared Recording Timeline
Each antenna path has its own four-channel configuration while the system maintains a common capture and replay timeline for both RF paths.
Configure Each RF Channel
Set the required frequency, sampling bandwidth, sampling rate and quantization for the selected recording plan.
Record Both Antenna Paths Together
Preserve RF conditions observed by antenna A and antenna B during the same route, movement and environmental event.
Replay the Paired Environment
Reproduce both recorded paths in the laboratory for receiver, positioning and navigation algorithm verification.
Synchronized does not automatically mean phase-coherent. If a project requires a specific inter-channel phase relationship, phase calibration or measurement accuracy, confirm the requirement with our engineering team before configuration.
Dual-Antenna Capture Built for Repeatable GNSS Testing
The MZ303P combines two synchronized RF signal paths, configurable multi-band recording, high-rate storage and controlled replay in a portable platform for field and laboratory use.
Dual-Antenna Synchronized Capture
Record two GNSS RF antenna paths during the same movement, obstruction and environmental event using a common recording timeline.
4 × 2 Configurable Channels
Configure four RF channels for each antenna path to capture the frequency bands required by the receiver and test plan.
Multi-Constellation RF Coverage
Cover supported BDS, GPS, GLONASS, Galileo and QZSS signals across the 1.1–2.5 GHz frequency range.
Flexible Sampling Configuration
Select the sampling bandwidth, sampling rate and quantization depth required to balance signal fidelity, data rate and recording time.
High-Rate Expandable Storage
Support high-rate field recording with 2 TB standard storage, expansion up to 8 TB and a maximum recording data rate of 1280 Mbps.
Controlled Replay and Remote Operation
Use interval playback, loop playback and channel control, with Gigabit Ethernet for remote operation and file transfer.
MZ303P System Configuration
Configuration note: Recording duration and file size depend on the number of enabled channels, sampling bandwidth, sampling rate and quantization setting.
RF Architecture and Signal Coverage
Sampling and Quantization
Recording, Storage and Replay
Interfaces and Timing
Physical, Power and Environment
Project confirmation: Final channel allocation, recording duration, storage capacity, antenna configuration and timing requirements should be confirmed against the intended test scenario before ordering.
Define the Recording Plan Before Field Deployment
Channel count, signal bandwidth, quantization, storage and timing requirements directly affect recording duration and test workflow. Confirm these items before selecting the final MZ303P configuration.
Antenna Arrangement
Define the antenna type, installation position, separation and cable arrangement used by the dual-antenna receiver under test.
Required GNSS Bands
Identify the BDS, GPS, GLONASS, Galileo or QZSS signals required for each antenna path and channel configuration.
Sampling Configuration
Select bandwidth, sampling rate and quantization according to the required signal fidelity and the receiver validation objective.
Storage and Duration
Estimate route duration and data rate before choosing between the standard 2 TB storage and expanded capacity up to 8 TB.
RF Input Conditions
Confirm expected RF input levels, antenna power requirements, connectors and any external RF components in the recording path.
Replay Output Level
Define the required replay level and attenuation for both receiver inputs to avoid overload and reproduce the intended laboratory setup.
Timing and Serial Data
Confirm whether the test requires 10 MHz reference interfaces, 1PPS output or synchronized RS232 data collection.
Remote Workflow
Define whether the system will be controlled from the touchscreen, over Gigabit Ethernet or through a PC-side recording and replay workflow.
MZ303P Package
Final accessories should be confirmed against the selected project configuration.
- 1 × MZ303P main unit
- 2 × GNSS receiving antennas
- 2 × transmitting antennas
- 2 × outdoor antenna cables
- 2 × indoor RF cables
- 1 × power adapter
Important: Synchronized dual-path recording should not be interpreted automatically as calibrated phase-coherent recording. Projects requiring a defined phase relationship or phase measurement accuracy must be reviewed separately by the engineering team.
MZ303P Questions
Key answers about dual-antenna recording, channel configuration, storage, replay and model selection.
Have a specific dual-antenna setup?
Send us the required GNSS bands, recording duration, antenna arrangement and receiver interface details.
Contact an EngineerThe MZ303P records and replays two synchronized GNSS RF antenna paths. It is designed for dual-antenna positioning, heading, orientation, moving-baseline testing, field regression and fault-reproduction workflows.
The MZ302P uses one antenna signal path with four configurable RF channels. The MZ303P uses two synchronized antenna paths with a 4 × 2 channel architecture, two RF inputs and two RF outputs.
It provides a 4 × 2 RF channel architecture, meaning four independently configurable RF channels are available for each of the two antenna paths.
Within its 1.1–2.5 GHz range, the MZ303P supports BDS B1, B2, B3, B1C, B2a, B2b and S; GPS L1, L2 and L5; GLONASS G1 and G2; Galileo E1, E5a and E5b; and QZSS L1, L2 and L5.
Yes. The MZ303P captures the two RF antenna paths on a common recording timeline and provides two RF outputs for synchronized replay in a controlled laboratory setup.
Not automatically. The MZ303P supports synchronized dual-path recording and replay, but projects requiring a calibrated inter-channel phase relationship or defined phase accuracy must be confirmed separately with the engineering team.
The standard configuration includes 2 TB of storage and can be expanded to 8 TB. Actual recording duration depends on enabled channels, bandwidth, sampling rate and quantization.
Yes. Gigabit Ethernet supports remote control, file transfer and PC-side recording and playback. Playback functions include selected intervals, loops, configurable loop intervals and independent channel control.
The standard package includes the MZ303P unit, two receiving antennas, two transmitting antennas, two outdoor antenna cables, two indoor RF cables and a power adapter. Final accessories should be confirmed with the selected configuration.
Plan a Dual-Antenna GNSS Recording and Replay Setup
Share your required GNSS bands, antenna arrangement, recording duration, sampling settings and receiver interfaces. Our engineering team will help define the appropriate channel and storage configuration.