Humminbird Operating the HDR, HDR 650 Control Head, Depth, Units Shallow Alarm Icon Indicates

Operating the HDR 650

YourHDR 650 Digital Depth Sounder sends a sound wave signal and determines distance by measuring the time betweenthe transmission of the sound wave and when the sound wave is reflected off of an object. As your HDR 650 transducer receives sonar signals, it converts them to a digital depth that is shown on the HDR 650 display.The depth reading is continuously updated as you travel across the water. The liquid crystal display (LCD) offers sharp viewing, even in bright, direct sunlight, and is continuouslylit for nighttime operation.

NOTE: Actual depth capability depends on such factors as bottom hardness, water conditions, and transducer installation. Units will typically read to deeper depths in fresh water than in salt water.

The HDR 650 Control Head

The HDR 650 uses a backlit display,together with a 3-button keypad, to control all user functions. The illustration below shows an example of the digital display.

HDR 650

Depth

Alarm Icon (flashes to indicate alert)

Units

Shallow Alarm Icon

(indicates

Shallow Alarm is set)

DOWN arrow key MENU key UP arrow key

Operations 30