Section 7: Supplemental Material

Datums Used by This Unit

WGS 1984

Zaire, Zambia and

Australian Geodetic

Default

Zimbabwe

1984 - Australia &

 

 

Tasmania

Adindan

Arc 1950 - Botswana

 

Mean for Ethiopia,

 

Ayabelle Lighthouse -

Sudan

Arc 1950 - Burundi

Djibouti

Adindan

Arc 1950 - Lesotho

Bellevue (IGN) -

Burkina Faso

 

Efate & Erromango

 

Arc 1950 - Malawi

Islands

Adindan

 

 

Cameroon

Arc 1950 - Swaziland

Bermuda 1957 -

 

 

Bermuda

Adindan

Arc 1950 - Zaire

 

Ethiopia

 

Bissau - Guinea-

 

Arc 1950 - Zambia

Bissau

Adindan

 

Bogota Observatory -

Mali

Arc 1950 - Zimbabwe

Colombia

Adindan

Arc 1960 - Mean for

Bukit Rimpah - Indo-

Senegal

Kenya, Tanzania

nesia (Bangka & Be-

 

 

litung Islands)

Adindan

Ascension Island

 

Sudan

1958 - Ascension

Camp Area Astro -

 

Island

Antarctica (McMurdo

Afgooye

 

Camp Area)

Somalia

Astro Beacon E 1945

 

 

- Iwo Jima

Campo Inchauspe -

Ain el Abd 1970

 

Argentina

Bahrain

Astro DOS 71/4 - St.

 

 

Helena Island

Canton Astro 1966 -

Ain el Abd 1970

 

Phoenix Islands

Saudi Arabia

Astro Tern Island

 

 

(FRIG) 1961 - Tern

Cape - South Africa

Anna 1 Astro 1965

Island

 

Cocos Islands

 

Cape Canaveral -

 

Astronomical Station

Bahamas, Florida

Antigua Island Astro

1952 - Marcus Island

 

1943; Antigua (Lee-

 

Carthage - Tunisia

ward Islands)

Australian Geodetic

 

 

1966 - Australia &

Switzerland

Arc 1950; Mean for

Tasmania

 

Botswana, Lesotho,

 

Chatham Island Astro

Malawi, Swaziland,

 

1971; New Zealand

 

 

(Chatham Island)

115

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Image 121
Eagle Electronics 640c manual Supplemental Material Datums Used by This Unit

640c specifications

Eagle Electronics has made a significant mark in the world of marine electronics with its innovative and reliable products, notably the Eagle Electronics 640C, 640cDF, and the 640c models. These devices are designed for anglers and navigators who seek advanced functionality combined with user-friendly operation.

The Eagle Electronics 640C is a high-performance fish finder that is primarily admired for its vibrant display and precise mapping capabilities. Equipped with a 640x480 pixel, full-color LCD screen, it provides crystal-clear visibility even in bright sunlight. This device uses advanced sonar technology to offer detailed underwater images, allowing users to locate fish with remarkable accuracy. The high-resolution graphics enhance the experience while providing an intuitive interface for easy navigation through its various features.

The 640cDF, a variant of the 640C, elevates the standard fish finder experience by incorporating dual-frequency sonar capabilities. This model operates on both 200 kHz and 83 kHz frequencies, allowing users to switch between narrow and wide beams based on their fishing needs. The dual-frequency technology provides a more comprehensive view of the underwater environment, making it easier to identify different types of fish and underwater structures. Additionally, the 640cDF boasts temperature sensing capabilities, giving anglers valuable data regarding water conditions that can influence fish behavior.

All models in the Eagle 640 series feature built-in GPS navigation. The integrated GPS provides a reliable mapping system that allows users to mark waypoints and create routes, significantly improving navigation efficiency. This technology is vital for those who engage in long-distance fishing trips or travel in unfamiliar waters. The GPS functionality, combined with the sonar capabilities, makes these devices essential tools for successful fishing excursions.

Furthermore, the Eagle 640 series devices come equipped with customizable display options, allowing users to tailor the information presented based on their preferences. The intuitive menu system simplifies the navigation of the device's various features, empowering users to quickly access critical data without unnecessary complications.

In summary, the Eagle Electronics 640C, 640cDF, and the 640c represent a blend of cutting-edge technology and user-centric design in the marine electronics space. With features such as high-resolution displays, dual-frequency sonar, built-in GPS navigation, and customizable settings, these devices enhance the fishing experience, making them invaluable assets for anglers and navigators alike.