Menu Features, Sensitivity, Depth Range, Fish ID

Menu Features

A simple menu system accesses the adjustable features of the SmartCast RF20. To activate the menu system, press the POWER-MENU button; the first time you do this after power up, the Sensitivity menu choice will appear. Once the RF20 has been powered on, pressing the POWER-MENU button will display the last menu choice viewed. Press the POWER- MENU button repeatedly to access other SmartCast menu choices, one at a time. When a menu choice is on the display, use the RIGHT and LEFT Cursor buttons to adjust the menu settings. Menus are automatically removed from the display after several seconds.

NOTE: Menu settings are not saved in memory. All settings return to factory defaults when the SmartCast is turned off.

Sensitivity

Press the POWER-MENU button until SENSITIVITY appears. Select a higher number to show weaker sonar returns on the display, or a lower number to remove clutter from the display. Adjusting Sensitivity also affects how sonar returns are iden- tified as Fish ID Symbols - more fish will be detected at the highest setting of 5, fewer at the lowest setting of 1. (1, 2, 3, 4, 5, Default = 3)

Depth Range

Press the POWER-MENU button until DEPTH RANGE appears. Auto is the default setting. When in automatic, the lower range will be adjusted by the unit to follow the bottom. Selecting a manual depth range locks it to the setting you select. (Auto, 10, 15, 20, 30, 60 or 100 feet [3, 5, 6, 9, 18, or 30 meters], Default = Auto)

NOTE: In manual operation, if the water depth is greater than the depth range setting, the bottom will not be visible on the display. Select Auto to return to automatic operation.

Depth scale changes or signal loss will cause lines with missing detail and/or abrupt changes in the graphed bottom. When the Depth Range is set to Auto, the depth is set to keep the bot- tom in the lower third of the screen. The screen image jump shown here is due to an automat- ic change in depth. New returns graphed at a different scale will not match up with the historic data already graphed at a higher or lower scale. Vertical lines can also occur as the radio sig- nal from the RSS is lost and then regained in rough water conditions.

Fish Alarm

Press the POWER-MENU button until FISH ALARM appears. Select Off for no fish alarm, or On for fish alarm. Fish ID must be set to On for Fish Alarm to work. (Off,On, Default = Off)

Fish ID

Press the POWER-MENU button until FISH ID appears. Select either Off to view “raw” sonar returns, or On to view fish symbols. Fish ID uses advanced signal processing to interpret sonar returns and will display a Fish Symbol when very selective requirements are met. Fish Alarm does not sound if Fish ID is turned off. (On, Off, Default = On)


		Fish ID				Raw Sonar

RF20 specifications

The Humminbird RF20 is a robust and versatile fish finder designed for anglers who seek to enhance their fishing experience on both freshwater and saltwater. Known for its advanced technologies and user-friendly features, the RF20 is a standout device in the marketplace.

One of the main features of the Humminbird RF20 is its dual beam sonar capability, which offers a wider coverage area and improved fish detection. Users can select between a narrow beam for precise imaging of underwater structures and a wider beam for covering larger areas. This ability to switch between beam widths makes it easier for anglers to locate fish in various environments.

The RF20 is also equipped with advanced GPS technology, providing accurate location data and mapping capabilities. With high-definition mapping, users can view detailed contours of lakes and rivers, allowing them to plan their fishing strategies effectively. The integrated GPS not only helps in navigating to hotspots but also offers waypoint management, enabling anglers to mark successful fishing spots for future trips.

Another significant characteristic of the Humminbird RF20 is its clarity and resolution. Featuring a vibrant color display, the device presents a clear picture of underwater activities, including the bottom structure, fish, and other relevant objects. The high-resolution screen ensures that users can see detailed information even in bright sunlight.

Durability and water resistance are also key aspects of the RF20. Designed to withstand harsh fishing conditions, it features a rugged housing that protects the device from splashes and moisture. This reliability is crucial for anglers who fish in unpredictable weather and various water conditions.

User-friendly interfaces are another hallmark of the Humminbird RF20. Its intuitive menu system and touchscreen functionality allow anglers to quickly access the desired features without navigating through complicated settings. This ease of use is critical for both novice and experienced anglers who need quick information at their fingertips while out on the water.

In conclusion, the Humminbird RF20 is an exceptional fish finder that combines advanced sonar technology, GPS integration, high-resolution display, and user-friendly features. Designed for durability and performance, it’s an ideal companion for any fishing adventure, enabling anglers to maximize their time on the water and improve their catch rates. Whether for competitive fishing or leisurely outings, the RF20 has the capabilities to elevate any angler's experience.