My boat has a DFF1 which I use to power a B60 transducer. I also have a DFF3 which I use to power a B175L and a B175HW transducer. I have a 10” VX2 and two 7” VX1’s. Everything is networked.
The DFF3 is set to 42khz and 190khz in an effort to eliminate interference with the B60. Everything has been working relatively well in shallow water (10-60 feet) but the first time I went offshore both sounders stopped providing readings. The depth offshore was between 600-2000 feet.
1) When the sounder screen stopped showing valid information I was unable to change the settings between Cruising/Fishing/Manual. I was also unable to switch between LF/HF by using the soft key. Being unable to change the control to Manual made it difficult to try and play with the settings.
2) The B60 50khz did not show any useful information, just the lines shown in the photo.
3) I cycled each MFD’s on and off several times but the issue still existed on both units. I also tried running only one MFD at a time but it did not resolve the problem while in deep water.
The issue partially resolved itself when we anchored in 100’ of water. The VX2/DFF3 began providing accurate images when using the HW transducer. This occurred was after I kept the DFF1 off and changed the DFF3 TX rate from “Speed Sensing” to “20”.
Any thoughts on what I should try? I’m considering removing one of the VX1’s and the DFF1 from the network and wiring them directly together. I’m also considering changing the DFF3 to transmit on 40khz instead of 42khz. Perhaps there’s some issue with the network or an issue with interference between the transducers?
Thank you very much
The DFF3 is set to 42khz and 190khz in an effort to eliminate interference with the B60. Everything has been working relatively well in shallow water (10-60 feet) but the first time I went offshore both sounders stopped providing readings. The depth offshore was between 600-2000 feet.
1) When the sounder screen stopped showing valid information I was unable to change the settings between Cruising/Fishing/Manual. I was also unable to switch between LF/HF by using the soft key. Being unable to change the control to Manual made it difficult to try and play with the settings.
2) The B60 50khz did not show any useful information, just the lines shown in the photo.
3) I cycled each MFD’s on and off several times but the issue still existed on both units. I also tried running only one MFD at a time but it did not resolve the problem while in deep water.
The issue partially resolved itself when we anchored in 100’ of water. The VX2/DFF3 began providing accurate images when using the HW transducer. This occurred was after I kept the DFF1 off and changed the DFF3 TX rate from “Speed Sensing” to “20”.
Any thoughts on what I should try? I’m considering removing one of the VX1’s and the DFF1 from the network and wiring them directly together. I’m also considering changing the DFF3 to transmit on 40khz instead of 42khz. Perhaps there’s some issue with the network or an issue with interference between the transducers?
Thank you very much
