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C o n e   S i z e   /   F r e q u e n c y

1. I have never understood why the 

deep penetrating frequencies 

such as 50kHz typically have 

a wider cone and the shallow 

water 200kHz a narrow cone.

2. The reason I say this is because 

in deep water the coverage area 

is already quite large due to the 

distance from the transducer, 

so a wide beam is not that 

essential - in fact, you want it 

to be quite small in order to get 

detail and target separation at 

great depths.

3. Whereas the 200kHz for 

shallow water should be as wide 

as possible due to the much 

shorter distance from the 

transducer.

4. This is emphasized further 

when trolling, even when the 

actual depth is >1000ft.

The Sound Wave

Tip: Take care when choosing the right transducer/s for your fishing style.

Airmar P66

Summary of Contents for HDS Touch Gen3

Page 1: ......

Page 2: ...n the equipment but in ones self I recently experienced this frustration myself as I just couldn t get the results another user was getting using the same equipment I simply had to accept that our con...

Page 3: ...6 Google Earth Windows Mac Android...

Page 4: ...8 SketchUp Mobile Viewer...

Page 5: ...he distance from the transducer so a wide beam is not that essential in fact you want it to be quite small in order to get detail and target separation at great depths 3 Whereas the 200kHz for shallow...

Page 6: ...27 The Transducer HDI 83 200kHz HDI v s TM150 CHIRP Several frequency options were used but the basic settings remained the same The TM150 came out on top in all cases Airmar TM150...

Page 7: ...off the Florida Keys 2 The Lowrance HDI Airmar P66 and TM150M transducers are certainly the most popular transom mount transducers 3 Taking the transducer properties into consideration it is easy to...

Page 8: ...sources 1 Display 1 for charts and narrow beam 50kHz High CHIRP to track the bottom using a TM260 transducer 19 50kHz for example 2 Display 2 for 83kHz Medium CHIRP and StructureScan DownScan and Sid...

Page 9: ...ANT 4 Secure both ends of the hose to a table with clamps with the dotted line facing up Clamping two lengths of timber to either side of the tubing will help stop it from rolling when you cut 5 Split...

Page 10: ...6ft above the weight might have to replace with larger weight of your H marker buoy and drop into 20 30ft of water 2 Make a very slow pass right next to the marker buoy first on 200kHz and then on 83...

Page 11: ...wnScan sonar An interesting observation is that the Elite4 has the same VP as the HDS9 Touch 3 Horizontal Pixels Width SideScan resolution is dependent on horizontal resolution Horizontal resolution a...

Page 12: ...lite7m 3 1 x Elite7 CHIRP 4 1 x N2k Starter Kit 5 1 x N2k T piece and 2ft cable see grey 6 LSS 2 Transducer StructureScanHD 7 Airmar TM150 CHIRP transducer 8 Trolling motor adaptor for HDI transducer...

Page 13: ...1 Slow Cruise 20kph 960ft 292m 2 Fast Troll 10kph 480ft 146m 3 Idle Speed 5kph 240ft 73m 4 Trolling Motor 2 5kph 120ft 37m 2D Sonar in Perspective Tip These distances will be greatly reduced when usi...

Page 14: ...re comfortable fishing go looking for standing timber where the tips stick through the thermocline 2 Even if the actual water depth is 2 3 times what you would normally fish just look for bigger trees...

Page 15: ...SideScan Sonar The Water Column 1 The water column does not simply consist of what s directly beneath the boat but left to right as well 2 The deeper the water the greater this area 010 sidescan colu...

Page 16: ...mounted transducer which is level parallel to keel and with a clear view to the left and right 3 A good quality SD card no more than 8GB with a fast transfer rate 4 An external GPS receiver such as t...

Page 17: ...st swim bladder solid skull construction and large scales 2 Tilapia Next strongest echo due to a medium swim bladder large skeleton and medium scales 3 Largemouth Bass The weakest echo due to a medium...

Page 18: ...CHAPTER 4 SONAR DOCTOR...

Page 19: ...and the plug itself secure 2 Make sure transducer and fishfinder power cables are NOT neatly strapped to trolling motor power cable in bow well 3 Make sure Fishfinder and Trolling Motor supply cables...

Page 20: ...7Ah battery and N2k Starter kit if you have a Point 1 Check power supply problems RF Interference and N2k issues if you have a Point 1 or other external receiver 3 There are a number of Apps available...

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