Transducer option for fcv295 med to deep water

[Anonymous]

Got a FCV295 and I'm upgrading my navnet vx2 to a txt14 plus a Dff1-uhd with a pm275lh-W transducer (for shallow water - up to ~100m).
Question I have is - I as looking at the 82b-35r Tranny (med-deeper water) for the fcv295; but I'm wondering if I should go for the chirp pm111lm Tranny instead? I know Fcv isn't chirp ready but it seems to be a better alround transducer. Just after some advise pls- thanx in advance!!

 

[Snips]

Stapes-1<
As long as you can fit the PM111LM I would lean that way. Going this way will give you two frequencies instead of one plus another source of temperature.

Snips

 

[Anonymous]

Thanx, that would be 88 and 107?
Would it give good bottom clarity/density or are chirp more for what's in the water column?

 

[Snips]

Staples-1,
No you won't be able to look at both 88 and 107 at the same time. You will be able to look at the LF and either 88 or 107Khz on the HF side.

Snips

 

[Anonymous]

Ok that makes sense.
Would the chirp Tranny give good bottom clarity/density (eg bottom thickness returns, like traditional trannys) or are chirp more for what's in the water column, target separation? say to 100m depth?

 

[Snips]

Staples-!,
Chirp transducers with their lower "Q" are better suited for fish detection than ground truthing. We have found transducers that ring longer (high "Q") can produce a better bottom tail (hard or soft).

Snips

 

[Anonymous]

Hi Snips,
Thanks for info, thought that could be the case - but have zero experience with chirp, few friends have them but for shallow fishing.
Hopefully one last question
The setup for this tranny, pm111lm, with the 295 tap settings, best frequencies, recommendations, Etc - do you know these or have many people had this setup?
Once again thank you

 

[Snips]

Staples-1,
The Tap settings will be "B" for both frequency ranges. If I had to choose a starting frequency I would choose 40Khz with a bandwidth of 20Khz for the LF side and 80 and 40 for the HF side. Doing this will allow you to slew the LF side from 30-50Khz and the HF side from 60-100Khz. Yes I know that the MF range is rated from 80-130Khz, but I think you will find that the MF side is more active on the lower half of it's frequency range.

Snips

 

[Anonymous]

Thanx - does anybody have pics of images?