Key facts
- Brand
- JRC
- Model
- JLR-21
- Category
- Other Electronics
- Documents
- 2
- Languages
- EN
- Last added
- 2023-11-06
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JRC JLR-21/31 GPS Compass User Manual
User Manual 161 pages · 3.5 MB · EN
The JRC JLR-21/31 GPS Compass is a marine navigation instrument designed to determine a ship's heading by receiving signals from GPS satellites. The unit consists of a display unit (NWZ-4701) and a sensor unit (NNN-21/31). This manual covers the equipment overview, installation procedures for both the sensor and display units, and detailed operation instructions.
Read onlineAll JRC JLR-21 documents by type
User Manual 2
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What does the JLR-21/31 use to determine the ship's heading?
It uses signals from GPS satellites.
How far should the unit be installed from a magnetic compass?
At least 1 m.
What is the primary function of the JLR-21/31?
This unit uses signals from GPS satellites to determine the ship's heading.
What is the minimum distance required from a magnetic compass during installation?
The unit must be installed at least 1 meter away from any magnetic compasses to avoid interference.