Back-up memory:

Built-in memory stores sonar records for

 

decades.

Languages:

10; menu languages selectable by user.

Sonar

 

Frequency:

50/200 kHz for SeaFinder 500CDF; 200 kHz

 

for FishMark 500C.

Transducers:

A dual-frequency Skimmertransducer with

 

built-in temperature sensor is packed with

 

the SeaFinder 500CDF. It has 35°/12° cone

 

angles. A single-frequency Skimmer trans-

 

ducer with built-in temperature sensor is

 

packed with the FishMark 500C. It has a 20°

 

cone angle. Transducers operate at speeds up

 

to 70 mph (61 kts)

Watts:

1,500 watts peak-to-peak/188 watt RMS.

Sonar sounding

 

depth capability:

SeaFinder 500CDF: 1,500 feet (450 me-

 

ters). FishMark 500C: 800 feet (244 me-

 

ters).

 

Actual capability depends on transducer con-

 

figuration and installation, bottom composi-

 

tion and water conditions. All sonar units

 

typically read deeper in fresh water than in

 

salt water.

Depth display:

Continuous display .

Audible alarms:

Deep/shallow/fish/zone.

Automatic ranging:

Yes, with instant screen updates.

Auto bottom track:

Yes.

Zoom bottom track:

Yes.

Split-screen zoom:

Yes.

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Eagle Electronics 500CDF manual Figuration and installation, bottom composi