Loran C Chains

Chain	GRI	S1	S2	S3	S4	S5

Central Pacific	4990	11	29	–	–	–

Canadian East Coast	5930	11	25	38	–	–

Commando Lion (Korea)	5970	11	31	42	–	–

Canadian West Coast	5990	11	27	41	–	–

South Saudi Arabia	7170	11	26	39	52	–

Labrador Sea	7930	11	26	–	–	–

Eastern Russia	7950	11	30	46	61	–

Gulf of Alaska	7960	11	26	44	–	–

Norwegian Sea	7970	11	26	46	60	–

Southeast USA	7980	11	23	43	59	–

Mediterranean Sea	7990	11	29	47	–	–

Western Russia	8000	10	25	50	65	–

North Central USA	8290	11	27	42	–	–

North Saudi Arabia	8990	11	25	40	56	69

Great Lakes	8970	11	28	44	59	–

South Central USA	9610	11	25	40	52	65

West Coast USA	9940	11	27	40	–	–

Northeast USA	9960	11	25	39	54	–

Northwest Pacific (old)	9970	11	30	55	81	–

Icelandic	9980	11	30	–	–	–

North Pacific	9990	11	29	43	–	–

Suez	4991	10	24

England, France	8940	12	30

Northwest Pacific	8930	11	30	50	70

Newfoundland East Coast	7270	11	25

Lessay	6731	10	39

BØ	7001	11	27

Sylt	7499	11	26

Ejde	9007	10	23	38

Saudia Arabia North	8830	11	25	39	56

Saudia Arabia South	7030	11	25	37	55

A-4

GP-1850F, GP-1850DF specifications

Furuno is renowned for its high-quality marine electronics, and the GP-1850DF and GP-1850F are no exceptions. These advanced GPS chart plotters are designed to meet the needs of both professional mariners and recreational boaters alike.

The GP-1850DF is equipped with a powerful 12-channel GPS that provides fast and accurate positioning information, while the GP-1850F features a sturdy built-in fish finder, making it ideal for anglers. Both units boast a brilliant color display that enhances visibility in various lighting conditions, ensuring that users can easily read information on the screen, even in direct sunlight.

One of the standout features of these models is their compatibility with a variety of chart formats, including C-MAP, and Furuno’s proprietary raster charts. This flexibility allows users to choose from a broad range of navigational charts, catering to specific regional needs and preferences. The intuitive interface of the GP-1850 series simplifies navigation, offering menu-driven commands and support for multiple languages.

Furuno has integrated advanced sonar technology in the GP-1850F model, including a high-resolution fish finder capable of detecting fish signatures with remarkable precision. The dual-frequency capabilities enable users to switch between higher frequencies for shallow water fishing and lower frequencies for deeper waters. This enriches the fishing experience while improving catch rates.

Moreover, both devices feature a built-in waypoint register, allowing users to store up to 1,000 waypoints, which can be essential for returning to promising fishing spots or navigating back to port. The navigation functions also include routes and track recording, empowering boaters to create custom paths and review their previous journeys.

The GP-1850 series also places a high emphasis on safety, incorporating features like man overboard (MOB) alarms and route alarms to enhance on-water safety. Additionally, they are designed to withstand the harsh marine environment, with waterproof housings that ensure durability during adverse weather conditions.

In conclusion, the Furuno GP-1850DF and GP-1850F models provide an exceptional combination of performance, reliability, and user-friendly features, making them a preferred choice for both fishermen and navigators. Their adaptability in various maritime situations, alongside advanced technologies, cements their reputation as essential tools for successful and safe voyages on the water.

Furuno GP-1850DF, GP-1850F manual Loran C Chains

Models: GP-1850F GP-1850DF

Loran C Chains

GRI

GP-1850F, GP-1850DF specifications