Capt David
Furuno Fan
Can you please tell me what chirp transducers you can use with TZT14 and TZtouch 2? Will B275-LHW and a 265 work on both units? Which is a better transducer?
Thank you
Thank you
transducer
- Thread starter Capt David
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Snips
Guest
Capt. David,
TZT doesn't have a built in sounder so you would need to connect a DFF1-UHD to it, then you could use either the 265LH or 275LHW CHIRP transducers. But only the 265LH will support both ACCU-FISH and the Bottom Discrimination modes. The TZT2 does have a built in sounder but it is not CHIRP. However just like TZT you can connect the DFF1-UHD to it as an external sounder. Both the 265 and 275 have same LF side so only the HF side is different. The HF side of the 275 is wider and probably better for fish detection down to 250ft. The 265 has a narrow HF side which is better for thermoclines.
Snips
TZT doesn't have a built in sounder so you would need to connect a DFF1-UHD to it, then you could use either the 265LH or 275LHW CHIRP transducers. But only the 265LH will support both ACCU-FISH and the Bottom Discrimination modes. The TZT2 does have a built in sounder but it is not CHIRP. However just like TZT you can connect the DFF1-UHD to it as an external sounder. Both the 265 and 275 have same LF side so only the HF side is different. The HF side of the 275 is wider and probably better for fish detection down to 250ft. The 265 has a narrow HF side which is better for thermoclines.
Snips
Capt David
Furuno Fan
Thank you very much.
Will the B275-LHW dispaly good bottom readings, and structure up to 130 feet versus the 265LH? I mostly fish rocks, and wrecks, with a few trips to the canyons. I'm really torn between the two transducers.
I don't believe the bottom discrimination or Accu-fish modes are that important to me
Will the B275-LHW dispaly good bottom readings, and structure up to 130 feet versus the 265LH? I mostly fish rocks, and wrecks, with a few trips to the canyons. I'm really torn between the two transducers.
I don't believe the bottom discrimination or Accu-fish modes are that important to me
S
Snips
Guest
Capt. David,
We really don't have many wrecks around here to look at but below are a couple screen shots that may help you decide. In the top screen shot the left side is the LF which is the same between the two transducers but can see the HF difference between the narrow (265) and wide (275) on the right side. The bottom shot is just full screen of the HF side between the two transducers.
Snips
We really don't have many wrecks around here to look at but below are a couple screen shots that may help you decide. In the top screen shot the left side is the LF which is the same between the two transducers but can see the HF difference between the narrow (265) and wide (275) on the right side. The bottom shot is just full screen of the HF side between the two transducers.
Snips
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Capt David
Furuno Fan
I ordered the B275-HLW. with the probability of adding another in the future. Unfortunately one transducer doesn't cover all scenarios. I really do appreciate your input, and advice.
Thank you
Thank you
S
Snips
Guest
MikeR13,
In that shallow of water I probably used the default settings which are Clutter at 0 and the TVG at 5. Personally I would rather see more than less. In the bottom screen shot if I used enough Clutter I could have suppressed those different water layers. I would rather see them first and then make the decision to suppress them or not.
Snips
In that shallow of water I probably used the default settings which are Clutter at 0 and the TVG at 5. Personally I would rather see more than less. In the bottom screen shot if I used enough Clutter I could have suppressed those different water layers. I would rather see them first and then make the decision to suppress them or not.
Snips
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Snips
Guest
MikeR13,
The Bottom Range Shift will not effect the target returns but the TX Rate will. The best way to see what happens is to go from the highest to the lowest setting to see how it effects the targets. Personally I use a Tx Rate of 20 100% of the time.
Snips
The Bottom Range Shift will not effect the target returns but the TX Rate will. The best way to see what happens is to go from the highest to the lowest setting to see how it effects the targets. Personally I use a Tx Rate of 20 100% of the time.
Snips
Here is a screen shot of my screen...DFF1, TM258....WHat is the gain offset default and exactly what does it exact impact? Seems like I was getting good markings of the fish directly on the bottom. Any additional information would be great
Clutter - 0
TVG - 5
Gain-75
1/1
Clutter - 0
TVG - 5
Gain-75
1/1
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Snips
Guest
MikeR13,
The Gain offset is the preset starting point for the main gain control. As there is really never zero gain on a sounder i.e. at zero gain you will still have some targets being displayed. Next time you are onboard if you want to see what it does adjust it at the dock to see it's affect. Your upper screen shot looks pretty good, in your lower one if you wanted to decrease that higher blue speckle you can raise your Clutter setting level.
Snips
The Gain offset is the preset starting point for the main gain control. As there is really never zero gain on a sounder i.e. at zero gain you will still have some targets being displayed. Next time you are onboard if you want to see what it does adjust it at the dock to see it's affect. Your upper screen shot looks pretty good, in your lower one if you wanted to decrease that higher blue speckle you can raise your Clutter setting level.
Snips
S
Snips
Guest
MikeR13,
It is up to you. The faster the screen advance rate the more blockier your targets will become. This is because at 2/1, 3/1 or 4/1 you are stretching all the returns. If you want to see what it looks like try it using the Demo mode.
Snips
It is up to you. The faster the screen advance rate the more blockier your targets will become. This is because at 2/1, 3/1 or 4/1 you are stretching all the returns. If you want to see what it looks like try it using the Demo mode.
Snips
Snips:
The screen shots you posted show the difference between the HF of 265LH & 275LHW.
Why does the bottom detail look so different? The 265LH is showing a narrow bottom profile and the 275LHW is showing a wider bottom profile. I am trying to understand how to determine bottom composition from the two shots.
Having read your other posts, bottom discrimination works on the 265LH and is not available on the 275LHW. I have a 275LHW attached to a DFF1-UHD. If I am trying to determine bottom composition I should be looking at the bottom profile on the LF return and not the HF return. Is that correct?
I need help in understanding the Bottom Level ( HF & LF) Offset. The manual does not provide much information. A more detained explanation would be helpful.
I am looking for a 1kw in-hull transducer the TZT2 that will provide bottom discrimination and RezBoost. Will the 527ID-IHN with a MB1100 matching box work ?
Thanks
42Duffy
The screen shots you posted show the difference between the HF of 265LH & 275LHW.
Why does the bottom detail look so different? The 265LH is showing a narrow bottom profile and the 275LHW is showing a wider bottom profile. I am trying to understand how to determine bottom composition from the two shots.
Having read your other posts, bottom discrimination works on the 265LH and is not available on the 275LHW. I have a 275LHW attached to a DFF1-UHD. If I am trying to determine bottom composition I should be looking at the bottom profile on the LF return and not the HF return. Is that correct?
I need help in understanding the Bottom Level ( HF & LF) Offset. The manual does not provide much information. A more detained explanation would be helpful.
I am looking for a 1kw in-hull transducer the TZT2 that will provide bottom discrimination and RezBoost. Will the 527ID-IHN with a MB1100 matching box work ?
Thanks
42Duffy
S
Snips
Guest
42Duffy,
All good questions.
The wider the transducers beam width the thicker/deeper the bottom return with be. The screen shot below is from a B-260 which has a 19 degree LF and the 6 degree HF and as you can see the bottom return on the LF side is around three times as thick as the HF side. Of course the amount of gain you use comes into play here also.
There are a few ways to try and determine soft or hard bottom. Some use the tail of the first echo and others will use the strength of the second/third echoes. Basically the long the tail on the primary return will indicate how hard the bottom is, this longer tail "should" equal a stronger 2/3rd echo also. Below is an example.
The Bottom Level control is used for the digital readout and should be set to -20.
Personally I would only use an in-hull transducer as a last resort. We have none in the Bottom Discrimination database.
Snips
All good questions.
The wider the transducers beam width the thicker/deeper the bottom return with be. The screen shot below is from a B-260 which has a 19 degree LF and the 6 degree HF and as you can see the bottom return on the LF side is around three times as thick as the HF side. Of course the amount of gain you use comes into play here also.
There are a few ways to try and determine soft or hard bottom. Some use the tail of the first echo and others will use the strength of the second/third echoes. Basically the long the tail on the primary return will indicate how hard the bottom is, this longer tail "should" equal a stronger 2/3rd echo also. Below is an example.
The Bottom Level control is used for the digital readout and should be set to -20.
Personally I would only use an in-hull transducer as a last resort. We have none in the Bottom Discrimination database.
Snips
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