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FF520 Page 7
1. INTRODUCTION
This chapter provides basic information in becoming familiar with the advanced functions of the
FF520 before you start using it combined with the STANDARD HORIZON GPS Chart Plotters.
1.0 GENERAL INFORMATION
The STANDARD HORIZON GPS Chart Plotters combined with the sonar performance of the
FF520 creates the most advanced marine navigation system available. This Owner's
Manual covers the Fish Finder functions of the FF520 when used with the STANDARD
HORIZON GPS Chart Plotters.
The FF520 advanced features include:
· A-Scope (displays Sonar Echo in real time)
· Preset modes (Fish, Cruise)
· 2x and 4x Zoom (capability to magnify any part of the Fish Finder image of a fixed rate)
· Bottom Lock (capability to magnify a user defined range around the bottom)
· White Line (help distinguish between fish and bottom, when fish are swimming close
to the bottom)
· Sensitivity Time Control (STC) reduces surface clutter show on the display by reducing
echoes from water disturbances
· Advanced Surface Declutter Function (suppresses the displaying of surface clutter)
· Interference rejection (allows reducing interference from other boats/Fish Finders)
· Noise Filter
· Fish Symbol feature
· Transducer ID (automatically selects power output and parameters for best performance).
· Dual Frequency: 50 and 200kHz with the capability to display the two frequencies at
the same time.
· Dual Power output: 500/1000W (4000/8000Wpp) depending on the transducer con-
nected. Refer to Sec. 6.1 "Optional Transducers".
· Max Depth*: 1KW - 1200Ft (365m) at 200kHz, 4000Ft (1219m) at 50kHz
500W - 700Ft (213m) at 200kHz, 1500Ft (457m) at 50kHz
· Min Depth: 2.5Ft (0.8m) at 200kHz, 5Ft (1.6m) at 50kHz
· Max Typical*: 1KW - 980Ft (299m) at 200kHz, 2700Ft (823m) at 50kHz
500W - 600 Ft (183m) at 200kHz, 1350Ft (411m) at 50kHz
NOTE*
This is not a guaranteed specification. The actual maximum depth capability of the system depends
on the type of transducer fitted, the reflectivity of the bottom, water condition, etc.
· Speed Sensor (if available on transducer)
· Dual temperature inputs Sensor (One channel TEMP1, Optional second channel
TEMP2) - if available on transducer
· Trip log
· External buzzer connections (buzzer not supplied)
· Alarms - Shallow, Depth, Temp Upper, Temp Lower
NOTE
Transducer ID is only available with STANDARD HORIZON DST520, DST521, DST523, DST525,
DST526, DST527 and DST528 transducers.