Using  the Hummingbird ICE 35 Flasher -bottom to top

How transducers work-easy assembly see Manual pgs1-16 manual

Using Simulation mode

To use simulation or demo mode ,Push in top knob and turn bottom knob on

A simulation will show a red line at the top indicating your transducer  , a lure dropping to a depth of 7.5 '(Green line) and a rising Green and Yellow line (Fish) from 11 ' coming up to your lure

Bottom will show Red green and yellow bands indicating differing composition and signal strengths

Two Knobs and four Buttons and their functions

1) Bottom Knob-5 settings ;power ON/OFF…4 Depth Ranges
Turning bottom knob   to x1 depth range turns on the unit and sets depth range to 20' shown on unit face with numbers in 1/2 foot increments   4 readings x1= 20'outside ring ,x2=40'orange ring, x4=80' innermost ring ,x10 200'( add zero to outside ring) see pg 22??

2)Beam Button …3 settings; Thin line =9 degree  cone; more defined concentrated for deep water  -Wider line =19 degree cone shallow water wider view- Battery check …press and hold till beep

3)Noise Button..Two options for reducing Noise and interference 1)switch to a different cone degree using BEAM button or or hit NOISE button and  reduce or increase  with top Selection knob

4)Gain Button  press and turn Selection knob

5) Zoom Button press zoom and turn selection dial (You can adjust gain while still in zoom mode)

 6)Top Knob Simulator/Sensitivity/Selection  Knob at Top…press for Sim…turn for increase or decrease sensitivity /gain/ noise reduction PUSH IN TO SET LEVEL AND FINALIZE COMMAND

 Sounds: soft beep 1/turning on unit pushing Buttons ,pushing and holding 

Continuous Beeping while turning selection knob ,  indicates minimum and maximum range

Middle Dial  4 readings 20'outside ring ,40'orange ring, 80' innermost ring ,200'( add zero to outside ring)

Color

4 Colors; Blue wide or narrow signal strength,

Red -strong or big….hard bottom

Yellow-medium ….soft bottom ..mud sand weeds see pg 19

Green-weak or small 

suspended fish

  My flasher unit, pictured here ,  is a Humingbird  ICE-35 Tri-color ,costs $300.00.Very useful for ice fishing as it saves me energy by preventing me from cutting unproductive holes and giving up a fish hole too quickly. It tells me if there are fish there or not .Fish show up as moving targets either coming in from the side of the transducer cone or coming up off bottom and the color yellow and Green show that .If it's your lure it will show up  and you can see the dropping green line representing your offering. The unit is very sensitive and even shows a small barrel swivel or tiny ice fly. The trick is to adjust the sensitivity so it shows a clear reading of bottom and your lure .Hard bottom is a wide red mark and wide yellow or green is softer bottom . Quick flashing moving targets are active fish ,that's exciting to see .Fish moving slower show as a slowly moving line and not much flashing .Using this unit helps me quickly find the zone to put and work my bait at . I learned to use it first watching a you tube video ,then reading sections of the manual from the hummingbird site and finally getting out on the ice and seeing fish rise to my lure and catching them .The  Hummingbird ICE 35 Flasher   has a simulator mode that helps you learn about the unit before getting out on the ice . https://www.youtube.com/watch?v=pqBwC_w71dA

This video doesn't answer the question I have :What's the Middle input on the back of the Unit for ?  The left input is for battery and the Right input is for the Transducer .Perhaps an add on feature to link with another apparatus.