SD-502 is a GPS receiver with SDIO (Security Digital Input/Output) interface and an integrated antenna.
The SD-502 is an SDIO‑interface GPS receiver with built‑in 512 MB memory, designed for Pocket PC platforms such as Dell Axim and HP iPAQ. It features a high‑sensitivity antenna, LED status indicator, and supports NMEA 0183 and SiRF binary protocols.
The manual covers system specifications, compatible devices, driver installation via ActiveSync, and FCC compliance. It also includes troubleshooting tips and LED function details to help users verify GPS fix status.
| Chipset | SiRF Start Ill |
|---|---|
| Frequency | L1, 1575.42 MHz |
| CIA Code | 1.023 MHz chip rate |
| Channels | 20 channel all‑in‑view tracking |
| Horizontal Position Accuracy | 10 m RMS (2 D) |
| Velocity Accuracy | 0.1 m/s |
| Time Accuracy | 1 µs synchronized to GPS time |
| Acceleration Limit | < 4 g |
| Altitude Limit | 18 000 m (60 000 ft) max |
| Velocity Limit | 515 m/s (1 000 knots) max |
| Operating Temperature | -10 °C ~ +70 °C |
| Supply Voltage | 3.3 V |
| Power Consumption | 110 mA |
| Dimensions | 95 mm × 30 mm × 13 mm |
| Weight | ≈ 30 g |
| Memory Size | 512 MB |
| SDIO Specification | Compliant with SDIO Card Specification Ver. 1.00 |
A blinking green LED means the GPS position is fixed, while a steady green LED means the GPS position is not fixed.
The SD-502 works with Dell Axim X3, X30, X50, X50V, X51V; HP iPAQ h1930, h1940, h1950, h2210, h2750, h4150, hx2410, hx4700, h6315, rx3115; Eten M500; Fujitsu Loox 720; Asus MyPal 730; and T‑Mobile MDA compact.
The device operates from –10 °C up to +70 °C.