Good morning 19mal71,
Thank you for your inquiry.
The FCV295 is dual channel, so you have the option to use two different frequency transducers. Concerning the CA82b-35R, that is a transducer that can be tuned to work with frequencies ranging from: 65kHz-110kHz. Please note that the FCV295 has specific frequencies that are blocked which include: 53-65kHz, 111-139kHz amd 171-183kHz. When using the CA82B-35R you can program that transducer to work at its frequency range aside from the frequencies that are blocked. You will only be able to view that transducer on 1 channel. You cannot program the FCV295 to show you two different frequency displays at the same time using that transducer.
If you want to take advantage of the Free Synthesizing Transceiver you could purchase a transducer that has the ability to change frequencies.
1kw could be up to the task depending on the frequency. To go deeper we typically recommend using a lower frequency transducer. The lower the frequency the deeper it can see if the output power stays the same.
Transducer selection can be difficult and we try to recommend transducers for a particular fishery and how the unit is going to be used. There can be pro's and cons with transducer selection. One transducer might work for a specific fishery but might not be very good for another fishery. So we try to figure out what fishery you spend the most time in and select a transducer for that application, then we try to get the best transducer that we can use to fill in the other fishery specific applications.
The best thing to do would be to talk with your local fisheries representative and see what other fishermen are having success with. Having local knowledge of the fishing grounds and techniques used in that market typically yields good results.
It is really hard to pinpoint a transducer for your application without knowing the local waters and how you guys fish. I would try to reach out to your local fisheries expert to see what is working for that particular fishery and what is not working.
The best mounting practice can also be a difficult thing to achieve.
I have attached a video that highlights some good practices that may help you with your installation.
https://www.youtube.com/watch?v=FVxGZKXWpwE&list=PLNAnyrS0eNSy_kODx32YYIMpOOUViotJ1&index=9&t=0s
https://www.youtube.com/watch?v=9rluAADlAUU&list=PLNAnyrS0eNSy_kODx32YYIMpOOUViotJ1&index=10&t=0s
Kind Regards,
C-Bass