The advantages of gyroscope technology offered by the specially designed GM-20/21 eliminates the inconveniences associated with conventional magnetic compasses. The GM-20/21 features synchro output, which can be used to drive the companion TOKYO KEIKI PR-1500 Steering Control for decidedly low cost autopilot steering. There's also an automatic preset startup feature with a 24-hour timer, so the GM-20/21 can be made ready to go for the next outing. In addition, if a synchro amplifier is used with the GM-21, up to three repeater compasses can be connected. The GM-20/21 incorporates a master compass which is normally mounted on top of the static inverter. If available space is limited, the static inverter can be remotely located on the bulkhead.
- Compact Design
The GM-20/21 measures only 228 x 321 x 377mm, so it can be easily installed on fishing boats and other small commercial vessels.
- Low Power Consumption
Power consumption is only 50 VA (for master compass)
- Ease of Operation
- Direct Reading and Synchro Output
Direct reading simplifies use considerably, and synchro output offers means for low-cost autopilot steering.
- Three Repeater Compass Circuits
- Automatic Preset Startup
- A 24-hour timer permits automatic startup.