NS7633 GNSS Navigation Signal Simulator

Overview Specifications Ordering Resources

The NS7633 is a professional device for Global Navigation Satellite System (GNSS) signal recording, playback, and forwarding, designed specifically for applications such as laboratory testing, in-vehicle trials, and field signal acquisition. It offers flexible RF configurations, high-precision quantization capabilities, and convenient data management features, thereby meeting a wide range of GNSS R&D and testing requirements. Furthermore, the device’s integrated forwarding functionality supports the verification of indoor test scenarios involving J-code (Official Code) signals.

Key Features

Flexible RF Bandwidth Configuration

Adjustable RF Quantization Level

High-Speed Data Transmission

Compact and Portable Design

Internal Monitoring Receiver

Web User Interface

Multi-Signal Synchronous Recording

MGC/AGC Dual-Mode Support

Supported Constellations and Frequencies	GPS L1, L2, L5; Galileo E1, E5a/b, E6; GLONASS G1, G2, G3; BeiDou B1, B2a/b, B3; QZSS L1, L2, L5, L6; NavIC L1, L5, S-Band; SBAS L1, L5; Additional signals in the High L-Band, Low L-Band, and S-Band can be configured via a web-based interactive interface; customized requirements— such as for Iridium and SiriusXM radio bands—can be provided upon request.
Rated Output Signal Power	-93 dBm/MHz @ 0 dB attenuation. During playback, the variable internal attenuator provides an adjustment range of +20 dB to -69 dB.
Number of RF Channels	3
RF Channel Center Frequency	User-selectable
Bandwidth	Each RF channel supports variable bandwidths of 3MHz, 6.5 MHz, 12.5 MHz, 25 MHz, and 56 MHz.
Sampling frequency	3.75 Msps, 7.5 Msps, 15 Msps, 30 Msps, 60 Msps (Automatically adapts bandwidth)
Quantization Level	1-, 2-, 3-, 4-, 6-, 8-, 12-bit I&Q
Data Format	I&Q
Other Recorded Content	2x CAN Channels, 4x Digital Channels, 1x RS232 Channel, 1x CAN-FD Channel
User-Defined Simulation Capabilities	Support
Active Antenna Voltage Feed	5V
Reference Crystal Oscillator	OCXO: Frequency Stability: ±0.0005 ppm
Storage	2TB Solid-State Drive (SSD), supporting data import and export via external USB devices (≥100 MB/s) and PCIe-to-USB adapters (≥600 MB/s).
Operating Voltage	PD Fast Charging
Dimension	165 mm x 126.85 mm x 49.7 mm (including feet) 165 mm x 126.85 mm x 45 mm (excluding feet)
Weight	1.209 kg (including built-in battery and SSD)
Battery Runtime	≥ 1.5 hours
Data Acquisition and Playback Modes	Built-in 2TB SSD; External drive storage expansion (PCIe-to-USB, ≥100 MB/s)
Data Import and Export Modes	Data Import/Export (PCIe-to-USB, ≥600 MB/s)
Supported Frequencies for the Internal Monitoring Receiver	Supports optional UBLOX (GPS L1, GLONASS L1, Galileo E1, BDS B1) or UM980 (supports nearly all GNSS frequencies) solutions.