MZ302P Portable GNSS Signal Recorder & Replayer
A portable single-antenna GNSS RF recorder and replayer with four independently configurable wideband channels for synchronized multi-frequency signal capture and playback. MZ302P covers 1.1–2.5 GHz and supports field recording, RTK data synchronization, remote control, and repeatable laboratory receiver testing.
- Single-antenna architecture
- Four configurable RF channels
- RF and RS232 synchronized recording
- Local and network recording workflows
Portable field recording for repeatable GNSS receiver testing.
MZ302P captures real-world GNSS RF conditions through four independently configurable channels and replays the recorded signals as repeatable laboratory test inputs.
The recorder covers the 1.1–2.5 GHz RF range, including published navigation frequencies from BDS, GPS, GLONASS, Galileo, and QZSS. Each channel can be assigned its own center frequency, sampling configuration, and quantization setting according to the required recording scenario.
Recorded GNSS RF signals can be synchronized with RS232 digital data, supporting workflows where navigation signals and correction or positioning data must be preserved together. This makes MZ302P suitable for RTK field recording, route reproduction, receiver regression testing, and engineering troubleshooting.
Internal storage, battery operation, touchscreen control, Gigabit Ethernet file transfer, and remote recording support allow the system to operate both as a portable field recorder and as part of a network-connected laboratory workflow.
Portable Field Capture
Compact hardware, integrated battery power, and local touchscreen control support route and field recording.
Four RF Channels
Four independently configurable channels allow selected GNSS frequency bands to be recorded and replayed together.
RF and Digital Synchronization
GNSS RF signals and RS232 digital data can be recorded and replayed within a synchronized test workflow.
Network-Extended Recording
Gigabit Ethernet supports remote control, file transfer, PC-side recording, and playback from external storage.
Choose MZ302P when the test requires a portable, single-antenna recorder with four configurable GNSS RF channels. For synchronized recording from two separate antennas, use the dual-antenna MZ303P.
From single-antenna RF capture to synchronized laboratory replay.
One RF input is distributed across four configurable acquisition paths for selected multi-frequency GNSS recording and playback.
GNSS RF & Digital Input
Capture the live RF environment through one GNSS antenna while recording supporting RS232 digital data when required.
Four-Channel Configuration
Assign selected GNSS frequency bands to four independently configurable wideband acquisition channels.
Synchronized Recording
Preserve channel timing while storing RF and supporting digital data as a reusable field-recording dataset.
RF & Digital Replay
Replay the stored signal environment through independently controlled RF channels for repeatable receiver evaluation.
Automatic Frequency Allocation
Select the required GNSS frequency points through the interface and allow the system to assign channel bandwidth, center frequency, and sampling rate automatically.
Manual Channel Configuration
Configure each RF channel independently within the 1.1–2.5 GHz operating range for specialized recording and replay requirements.
Mixed Sampling Configuration
Use different supported sampling rates across the four RF channels while maintaining synchronized recording through the internal timing mechanism.
One portable system for field capture, signal management, and RF replay.
MZ302P combines configurable GNSS RF acquisition, synchronized digital-data recording, internal storage, touchscreen operation, remote control, and flexible replay modes in one portable platform.
Multi-Band GNSS Recording
Capture selected GNSS frequency bands within the 1.1–2.5 GHz RF operating range.
- BDS, GPS, GLONASS, Galileo, and QZSS support
- Four independently configurable RF channels
- Scheduled recording time and duration settings
Configurable Sampling & Quantization
Match channel acquisition settings to the signal bandwidth, recording duration, and storage requirements.
- 4, 12, 20, and 52 MHz sampling bandwidths
- Up to 58 MHz supported sampling rate
- 1, 2, 4, 8, and 12-bit quantization options
RF & Digital Data Synchronization
Preserve RF behavior and supporting serial data in the same time-aligned recording workflow.
- Synchronized four-channel RF acquisition
- RS232 data recording up to 115200 baud
- Suitable for RTK signal and correction-data workflows
Flexible RF Signal Playback
Reproduce recorded signal conditions through configurable playback modes and independently controlled RF channels.
- Selected interval playback
- Continuous loop and configurable loop intervals
- Independent playback-channel switching
Local & Network Storage
Store recordings internally or extend the workflow through a Gigabit Ethernet-connected computer.
- 2 TB standard internal storage
- Configurable storage capacity up to 8 TB
- PC file import, export, recording, and playback
Portable Local & Remote Control
Operate the recorder locally in the field or integrate it into a remotely controlled engineering workflow.
- Integrated 7-inch touchscreen
- More than 8 hours standby time
- Gigabit Ethernet remote control
MZ302P technical summary.
Standard configuration data for the portable single-antenna GNSS signal recording and playback system.
RF & Signal Coverage
Sampling & Quantization
Recording & Storage
Interfaces & Timing
Physical & Environmental
Preserve real RF conditions and bring them back to the laboratory.
MZ302P is designed for single-antenna recording workflows where the same RF environment must be replayed repeatedly across receiver development and validation cycles.
Route & Field Signal Recording
Record real GNSS RF conditions during vehicle routes, field campaigns, site surveys, or outdoor receiver tests.
RTK Receiver Validation
Record GNSS RF signals together with synchronized RS232 correction or positioning data for repeatable RTK testing.
Receiver Regression Testing
Replay one archived signal dataset repeatedly to evaluate receiver software, firmware, hardware, or configuration changes.
Field Issue Reproduction
Capture signal conditions present when a receiver loses position, produces abnormal output, or fails to maintain tracking.
Multi-Constellation Receiver Testing
Configure the four RF channels around selected BDS, GPS, GLONASS, Galileo, or QZSS frequency bands.
Reusable GNSS Signal Dataset Library
Import, export, organize, and replay recorded GNSS RF files through internal or network-connected storage.
MZ302P or MZ303P: choose by antenna architecture.
Both models share the same portable recording platform. The primary difference is whether the test requires one antenna signal path or two synchronized antenna signal paths.
MZ302P
Portable four-channel recording system for one GNSS antenna signal path. Recommended for route capture, receiver regression, RTK validation, and general field-to-lab reproduction.
MZ303P
Portable dual-antenna recording system with four configurable channels assigned to each antenna signal path. Recommended for synchronized positioning, heading, and direction-related tests.
| Comparison Item | MZ302P | MZ303P |
|---|---|---|
| Antenna Architecture | Single antenna | Dual antenna |
| RF Channel Architecture | 4 configurable channels | 4×2 configurable channels |
| RF Inputs / Outputs | 1 input / 1 output | 2 inputs / 2 outputs |
| RF Frequency Range | 1.1–2.5 GHz | 1.1–2.5 GHz |
| Sampling Bandwidth | 4 / 12 / 20 / 52 MHz | 4 / 12 / 20 / 52 MHz |
| Sampling Rate Settings | 7.25 / 14.5 / 29 / 58 MHz | 7.25 / 14.5 / 29 / 58 MHz |
| Quantization | 1 / 2 / 4 / 8 / 12 bit | 1 / 2 / 4 / 8 / 12 bit |
| Internal Storage | 2 TB standard, up to 8 TB | 2 TB standard, up to 8 TB |
| Maximum Recording Rate | 1280 Mbps | 1280 Mbps |
| Digital Recording | 1 × RS232 | 1 × RS232 |
| Reference Timing | 10 MHz input/output + 1PPS output | 10 MHz input/output + 1PPS output |
| Touchscreen | 7 inches | 7 inches |
| Standby Time | > 8 hours | > 8 hours |
| Recommended Use | Single-antenna route recording, receiver regression, RTK testing, and field troubleshooting | Dual-antenna positioning, heading, synchronized antenna comparison, and direction-related testing |
One antenna signal path is sufficient.
This is the more direct configuration for standard GNSS receiver validation, route recording, RTK testing, and portable field troubleshooting.
Two antenna signals must remain synchronized.
Use the dual-antenna configuration for positioning and heading systems, antenna-baseline testing, or other workflows that depend on two synchronized RF signal paths.
Define the recording plan before selecting the final configuration.
Frequency selection, sampling bandwidth, quantization depth, recording duration, storage capacity, and reference timing should be matched to the intended receiver test.
GNSS Frequency Selection
Confirm which BDS, GPS, GLONASS, Galileo, or QZSS frequencies must be recorded and replayed together.
Sampling Configuration
Select the sampling bandwidth and rate according to the target signal bandwidth and receiver validation objective.
Quantization Depth
Higher bit depth provides greater sample resolution but increases recording rate and storage consumption.
Storage Capacity
Estimate storage using the number of active channels, sampling settings, quantization depth, and required duration.
RF Input & Output Levels
Confirm antenna, cable, splitter, attenuator, and receiver interface levels before field recording or laboratory replay.
Reference Timing
Determine whether the setup uses the internal timing mechanism or an external 10 MHz reference and 1PPS workflow.
RS232 Data Recording
Confirm the serial data source, baud rate, message format, and required synchronization with the recorded RF signals.
Network Recording
For PC-side recording or playback, confirm network bandwidth, computer storage performance, and file workflow.
MZ302P product FAQ.
Common questions about frequency coverage, RF channels, storage, RTK recording, timing, and the difference between MZ302P and MZ303P.
01 What does the MZ302P record and replay?
MZ302P records and replays selected satellite-navigation RF signals within the 1.1–2.5 GHz range. It can also record RS232 digital data in synchronization with the RF recording.
02 How many RF channels does MZ302P provide?
MZ302P provides four independently configurable wideband RF channels. Each channel can be assigned its own supported center frequency, sampling configuration, and quantization depth.
03 Can MZ302P record every GNSS frequency simultaneously?
The system uses four configurable RF channels. Simultaneous coverage depends on the selected frequencies, channel center frequencies, sampling bandwidths, and recording configuration. The required frequency plan should therefore be confirmed before quotation.
04 Can different RF channels use different sampling rates?
Yes. The four RF channels can operate with different supported sampling configurations while the recorder’s internal synchronization mechanism maintains the required timing relationship between the recorded channels.
05 Can MZ302P record RTK correction data?
MZ302P includes one RS232 interface and can record serial data up to 115200 baud together with the GNSS RF signals. This supports RTK workflows where RF and correction or positioning data must be preserved together.
06 How long can the MZ302P record?
Recording duration depends on the number of active RF channels, sampling bandwidth, sampling rate, quantization depth, and storage capacity. The standard configuration includes 2 TB of storage, with options up to 8 TB and support for PC-side network recording.
07 Does MZ302P support external reference timing?
Yes. MZ302P provides an external 10 MHz reference input, a 10 MHz output, and a configurable 1PPS output for integration with laboratory timing and synchronization systems.
08 What is the difference between MZ302P and MZ303P?
MZ302P is a single-antenna, four-channel recorder and replayer. MZ303P provides two synchronized antenna signal paths with a 4×2 RF channel architecture for dual-antenna positioning, heading, and antenna-comparison workflows.
09 Is MZ302P suitable for portable field recording?
Yes. MZ302P weighs less than 2.5 kg, includes a 7-inch touchscreen and internal battery, and provides more than eight hours of standby time. Actual operating duration depends on the active recording configuration.
Build the right four-channel GNSS recording configuration.
Share your target constellations and frequencies, expected recording duration, sampling requirements, receiver type, RS232 data source, and field or laboratory workflow.