SPD/CSE SMOOTHING

During position fixing, ship’s velocity (speed and course) is directly measured by receiv- ing GPS satellite signals. The raw velocity data may change randomly depending on re- ceiving conditions and other factors. You can reduce this random variation by increasing the smoothing. Like with latitude and longi- tude smoothing, the higher the speed and course smoothing the more smoothed the raw data. If the setting is too high, however, the response to speed and course change slows. For no smoothing, enter all zeroes. The default setting is 005 (sec).

GPS SPEED AVE

Calculation of ETA is based on average ship’s speed over a given period. If the period is too long or too short calculation error will re- sult. Change this setting if calculation error occurs. The default setting is 60 seconds, which is suitable for most conditions.

LAT OFFSET, LON OFFSET

GPS generated position may be off by some seconds due to GPS signal variation. You may apply an offset to GPS position to refine position accuracy.

DISABLE SATELLITE

Every GPS satellite is broadcasting abnor- mal satellite number(s) in it’s Almanac, which contains general orbital data about all GPS satellites, including those which are malfunc- tioning. Using this information, the GPS re- ceiver automatically eliminates any malfunctioning satellite from the GPS satel- lite schedule. However, the Almanac some- times may not contain this information. If you hear about a malfunctioning satellite from another source, you can disable it manually. Enter satellite number (max. 3 satellites) in two digits and press the soft key ENTER or the [ENTER] key.

LATITUDE, LONGITUDE

The default latitude and longitude position is San Francisco, USA (38.00.000’N, 123.00.000’W). When the unit is turned on first the first time it begins searching for its actual position. To lessen the time required to find position, you may enter your position manually. To switch from North to South and vice versa, use the soft key N<-->S, and to switch from West to East and vice versa, use the soft key W<-->E. Finally, press the soft key ENTER or the [ENTER] key.

ANT. HEIGHT

Enter the height of the antenna unit above sea surface. For further details refer to the Installation Manual. The default setting is 5 m.

FIX MODE

You can choose the position-fixing mode from 2D or 2D/3D. 2D requires three satellites to fix position; 2D/3D requires three or four sat- ellites, whichever is available. The default set- ting is 2D/3D.

DGPS SETUP OPTIONS menu

This menu sets parameters for the DGPS beacon receiver. (GP1850DF, or GP1850F equipped with DGPS beacon receiver.) To display it, press the [MENU] key followed by the soft keys GPS/DPGS/TD OPTIONS and

DGPS SETUP OPTIONS.

 

 

 

 

DGPS

 

sDGPS MODE

ON

 

OPTION

 

 

 

 

 

BEACON FREQUENCY

AUTO

 

 

 

 

 

EDIT

 

 

BEACON BAUD RATE

AUTO

 

 

 

 

 

 

 

 

DGPS ALARM

OFF

 

 

 

 

 

 

 

 

 

DGPS 3D

 

 

 

RETURN

 

 

 

Figure 11-10 DGPS setup options menu

11-6

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Furuno GP-1850DF, GP-1850F manual 11-6, Dgps Setup Options menu

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.