Transducer selection

[Bottom Line]

I am having a Simrad Go9 installed on my boat, so I am looking for a new thru hull transducer. The more I look at the different transducer, the more confused I seem to get. What I want out of the transducer are depth, water temp and a good scan of the bottom to drop anchor. We boat on a freshwater lake with lots of rocks and trees, so I would like to get a quality scan of the bottom before dropping anchor. Several transducers that I have looked at are backordered, and I am trying to coordinate the installation to coincide with a haul out for bottom paint. I have been looking at Airmar B150, B75 and B175...and there is some difference in cost...and do I want medium or high frequency? There are also different rating of 300 watt, 600 watt and 1KW. On one model I am looking at (B175) the medium frequency is more expensive that the high frequency.

Thanks for any feed back.

 

[Mig22]

Looks like your located inland at Table Rock certainly with water depth less than 500ft. The B150 300w will provide adequate depth and target separation. The benefit of the more powerful models is mostly for greater depths and they also provide a more flexibility with the beam width as well.

 

[Bottom Line]

Looks like your located inland at Table Rock certainly with water depth less than 500ft. The B150 300w will provide adequate depth and target separation. The benefit of the more powerful models is mostly for greater depths and they also provide a more flexibility with the beam width as well.

Thanks for your feedback. Do you think using a B175 1KW will show better detail of the bottom in 30 or 40 feet of water, when dropping anchor?

 

[hughespat57]

As with the power frequency affects depth and resolution. In this case lower frequency is for deep water. Higher frequency better resolution. If your use is primarily navigation a forward scan setup would look out in front giving you advanced look at the bottom.

 

[Mig22]

Each will scan the bottom fairly similar in the environment your operating in. The difference is a more defined resolution of what is in the water between the boat and bottom( ie more defined schools of fish.) Like hughspat57 says maybe a forward scan is something to consider if you really want to make its primary role to set/see your anchor.