Holux GR 271 Slim CompactFlash GPS with 20 parallel satellite-tracking channels for fast acquisition and reacquisition Built-in hardware tracking loop processor WAAS/EGNOS demodulator Low power consumption with starŲ chipset Built-in rechargeable battery for memory and RTC backup and for fast time to first fix(TTFF) Support NMEA0183 v2.2 data protocol and SiRF III binary code Enhanced algorithms-SnapLock and SnapStart provide superior navigation performance in urban, canyon and foliage environments Support CF card type I connector suitable PDA, Hand Held PC or PC device.

1. Tird generation SiRF III chipset for best performance and accuracy
2. 20 parallel satellite-tracking channels for fast acquisition and reacquisition
3. High speed signal acquisition using 1920 time/frequency search channels
4. WAAS enabled
5. Support NMEA0183 v2.2 data protocol
6. Enhanced algorithms -SnapLock and SnapStart provide superior navigation performance in urban, canyon and foliage environments
7. Support CF card type I connector suitable PDA, Hand Held PC or PC device
8. GPS navigation software not included