GPS/GNSS Modules

GPS Receiver Module Model GN-8421 Discontinued Products

GN-8421 is a low-cost, high-sensitivity, complete GPS/A-GPS receiver module that combines a hardware measurement platform with eRide powerful navigation software integrated onto an embedded 32-bit RISC microprocessor.

GN-8421 is ideal for a wide range of applications where performance, time to market and ease of integration are prime considerations. It includes two SAW filters for high performance when integrated with wireless communications, and has advanced features for use in car navigation devices and fleet management.

GN-8421 is based on OPUS III technology and includes the eRideOPUS IIIez BB IC and the Prelude III RF Receiver IC, a TCXO, two SAW filters and various matching and peripheral components in a small form factor. It is your complete GPS/AGPS solution with only an external GPS antenna and power supply required



  • Provides PVT (Position, Velocity, & Time) in a single package solution.

  • High sensitivity (-158dBm Typ).

  • SBAS (EGNOS, WAAS and MSAS) capable

  • Quick TTFF (Hot start: 2 seconds Typical).

  • Low profile, small SMT package reducing the mounting area and mounting cost.

  • Small footprint: 22mm x 22mm

  • Well-accepted by automotive electronics device manufacturers thanks to its reliability

  • eRide powerful navigation software is integrated

  • 3.3V and 1.2 V power supply selectable



GNSS Reception Capability
GNSS Reception
14ch (GPS, SBAS)
Acquisition (Hot Start): -158 dBm
Tracking: -158 dBm
TTFF (Typical)
Hot Start (Outdoors) : <2 sec Typ @-130 dBm
Warm Start: 33 sec Typ @ -130 dBm
Cold Start: 38 sec Typ @ -130 dBm
Supply Voltage
3.3V (VCC only) or 3.3V(VCC)/1.8V(VCORE)
Power Consumption
80 mA (VCC only, Acquisition outdoor)
45mA(ICC)/ 43mA(ICORE) (VCC and VCOR, Acquisition outdoor)
Operating Temperature
-40°C to +85°C (Performance guarantee)
-40°C to +85°C (Function guarantee)
Outer Size
22.0mm x 22.0mm x 3.0mm
NMEA 0183
eRide Serial Interface Protocol (eSIP)


* Specifications subject to change without notice.