Getting Started


HI-305III is a GPS receiver with Compact Flash type I / mini-1394 interfaces and built-in active antenna for high sensitivity to tracking signal. Based on the SiRF star III Ultra high sensitive chip set and supports all functions (Single Sat updates in reduced visibility, Superior urban canyon performance, Foliage Lock for weak signal tracking, etc.). HI-305III is well suited to system integration and users who use any kinds of mobile devices, such as, PDA, notebook PC, Tablet PC, etc. It satisfies a wide variety of applications for car navigation, personal navigation or touring devices, tracking and marine navigation purpose. Users can simply plug it into a PDA or other type of handheld PC running with suitable mapping and routing software for navigation.

By counecting different optional connecting cables, HI-305III can be all kinds of wired GPS receiver solutions.

Multi-Mode GPS receiver With SD memory slot

1. HI-305III as a CompactFlash GPS receiver
2. HI-305III as a SD Card via CF interface
3. HI-305III as a PDA GPS receiver

Total GPS solution:

On the side of HI-305III, there is a SD memory slot. User can insert the SD memory card containing the mapping software so that the GPS data and the map data can be accessed simultaneously via the Compact Flash interface from the host device like, PDA, laptop PC, etc.,.

After the proper driver installed, with the SD memory card inserted, as soon as user plug the Compact Flash interface, there will be a folder created from host device.
Beside using it as a complete GPS solution, HI-305III can also be a SD card reader in CF interface. One can store any file into any standard SD memory card and the file can be read or write via the Compact Flash interface.


Interfaces: Compact Flash type 1 & Mini-1394
Baud Rate: 4800, N, 8, 1
Max. Update Rate:
1 Hz
20 channel
L1, 1575.42MHz
Hot Start:
3 ~ 6 sec. Average
Warm Start:
34 sec. Average
Cold Start:
46 sec. Average
Reacquisition Time:
100 ms
Position Accuracy:
7m 2D RMS, SA off
Maximum Altitude:
Maximum Velocity:
DC 3.3V+- 10%
Power consumption:
90mA continuous mode
Antenna Type:
Built-in active antenna
External Antenna Connector:
MMCX (Optional)

65 (L) x 48 (W) x 25 (H)mm
116 (L) x 48 (W) x 22 (H)mm
LED Indicator:
3D Positioning (blinking) or Searching GPS (on)
Operating Temperature:
-40 to + 80
Storage Temperature:
- 55 to + 85
Operation Humidity:
95%, Non- Condensing
Acquisition: -149 dbm
Tracking: -159 dbm


Optional Accessories:

Model Name Model #
1. MMCX external antenna ATN-MMC
2. CF-PCMCIA adapter CF-PCM
3. PS/II to USB connecting cable PS2-USB
4. PS/II to DB9 serial connecting cable PS2-DB9
5. PS/II to PDA connecting cable/charger PS2-XXX
6. Bluetooth Slipper HI-401BT



LED indicators:

LED off Receiver switch off
LED flashing 3D Position Fixed
LED on Signal searching

Standard Packaging:
Model Name Model #
1. Multi-Mode Foldable GPS receiver with SD slot unit HI-305III
2. Male Mini-1394 to PS/II connecting cable PS2-1394
3. Carrying pouch BAG-002
4. Mini CD (containing user Manual CD . . . CDR-01
5. User Manual MAU-35III