GPS Director GD-101 is an electronic compass produced by I.D.A. It has the functions of setting 5 destinations, displaying 16 direction arrows, displaying magnetic north and the coordinates of the current position, setting destination coordinates, displaying the maximum distance to the destination, displaying the GPS capture status, setting 3 kinds of distance units, setting time and date.
This manual covers the features, specifications, and accessories of the GPS GD-101 handheld navigator. It explains how to install batteries, perform magnetic north calibration, and use the main and setting screens.
The document also includes detailed technical data such as chipset, frequency, sensitivity, and accuracy, as well as troubleshooting steps and world time‑zone settings for global use. This manual is written in Japanese.
| GPS chipset | High‑sensitivity single GPS chip |
|---|---|
| Frequency | L1 1575.42 MHz |
| C/A code chip rate | 1.023 MHz |
| Sensitivity | -161 dBm |
| Display resolution | 96 × 65 pixels |
| Battery type | 2 AA (単4) batteries |
| Battery life (alkaline) | 18 hours |
| Size | 60 × 60 × 28 mm |
| Weight (without batteries) | 45 g |
| Horizontal accuracy | 10 m (2 DRMS) |
| Speed accuracy | 0.1 m/s |
| Time accuracy | 1 µs (GPS time) |
The GD-101 uses two AA (単4) batteries.
With alkaline batteries the device can run for about 18 hours.
Press and hold the power/backlight button (長押し) to toggle power on or off.
The device automatically performs magnetic north calibration the first time it is used, and manual calibration can be done via the function button as described in Chapter 3‑3.