Table of Contents
Fortuna GPSmart
Features
12 Parallel channels for fast position fixes, WAAS Enable.
Stores more than 3,000 waypoints
Compact size: W=58mm L=119mm H=30mm
Weighs only 110 grams
Multiple scale zoom levels
Can be used as a GPS Smart Antenna outputs NMEA 0183 V2.2
Capability of connecting to PC, Notebook or PDA
3 AAA Batteries (Batteries not included)
Back Light
Battery Low Indicator
Navigation Function
Go To Function
Route Function
Specifications
Chipset:
SiRF Star IIe/LP
General:
Frequency: L1, 1575.42 MHz
C/A: 1.023 MHz chip rate
Channels: 12 Channel all-in-view tracking
DGPS Source: Default: WAAS
Standalone functions and screens:
Satellite distribution
Position
Navigation
Map: Max 3,840 marks can be added
Route (20 routes, 31,084 route dots, 3,120 waypoints)
Go To
Database
Set Up (includes an interesting “mirror” mode)
Bluetooth On/Off toggle
Antenna Type:
Embedded patch antenna
Accuracy : (DGPS None)
Position: 10 meters, 2D, without SA
Acquisition Rate: (Open Sky and Stationary )
Reacquisition: 0.1 sec., average
Cold Start: 45 sec. typical
Warm Start: 38 sec. typical
Hot Start: 8 sec. typical
Dynamics Conditions :
Altitude: <18,000 meters
Velocity: < 515 meter/second
Acceleration: < 4g
Interfaces:
Serial Port: Mini USB form factor
Default baudrate: 38,400 bps
GPS Protocol: Default: NMEA-0183 (V2.0) - GGA, GSA, GSV ,MSS, RMC
Programmable: additional NMEA - VTG, GLL / SiRF Binary
Power Consumption:
82-93mA
Interface
The apparent USB interface is actually a TTL-level RS232 interface using a mini-USB connector. A standard USB cable will not work.
| Pin | Function |
|---|---|
| 1 | GND |
| 2 | RxD |
| 3 | TxD |
| 4 | unknown |
| 5 | 5V |
This is the original pinout inside the unit.
________ | USB 1]---+5v | Skt 2]---unknown function | 3]---data out (GPS -> PC) | 4]---data in (PC -> GPS) |_______5]---Gnd
Since pin 4 is not connected in mini-USB cables, cut the unused(Vref?) pin 2 trace and jumper it to pin 4.
________ | USB 1]---------+5v | Skt 2]-+--/ /--unknown function | 3]-|-------data out (GPS -> PC) | 4]-+-------data in (PC -> GPS) |_______5]---------Gnd
