• GNSS for Time Sync
Timing GPS Receiver Module

Model GT-84A
  • Discontinued Products

GT-84A is the FURUNO's high sensitivity Time-Transfer GPS Receiver Modules that delivers highly accurate GPS timing.

Integrity is further improved because of its SBAS (WAAS) capability in addition to traditional T-RAIM (Time-Receiver Autonomous Integrity Monitor) function. Several new command sets have been added for easier use.

PPS output mode is available. For example, in "always output mode", 1PPS is output without satellite signals using the receiver's internal timing (no UTC synchronization). In "fixed observation point mode", one satellite signal is enough to output UTC synchronized 1PPS. application is infinite.

  • GNSS (Timing, Automotive/Industrial)

Features

High accurate UTC time can be easily obtained worldwide.

High sensitivity ensures excellent reception in the most demanding applications

Small SMT package reducing the mounting area and mounting cost.

One satellite signal is enough to output UTC syncronized 1PPS.

Antenna current detection circuit allows you to ease maintenance work.

Specifications

General

GNSS Reception Capability

GPS L1 C/A, SBAS L1 C/A

GNSS Reception

12ch (1 channel will be added while SBAS enabled)

Update Rate

1Hz

Sensitivity

Acquisition (Hot start) : -155 dBm

1PPS Stability

8us (max)
30nsec(2σ,open sky)

Supply Voltage

In case internal LDO is used to supply VCORE
VCC : 3.3V ±0.3V
In case VCORE is supplied from external LDO
VCC : 3.3V ±0.3V , VCORE : 1.2V ± 0.6V

Current Consumption

In case internal LDO is used to supply VCORE
ICC : 73mA (typical, While acquiring satellites)
In case VCORE is supplied from external LDO
ICC : 29mA , ICORE : 43mA (typical, While acquiring satellites)

Backup Supply

Voltage : 1.8 V to 3.6V DC
Current : < 20 micro A (VCC=0V)
: < 2 micro A (VCC=3.3V)

Operating Temperature

-30°C to +85°C

Storage Temperature

-40°C to +85°C

Antenna Detection

Antenna current detection circuit
over-flow protection circuit

Outer Size

22.0 mm (W) x 22.0 mm (D) x 3.0 mm (H)

Protocol

NMEA0183

Drawing

Inquiries about GNSS Products