Chris posted a discussion

Hi all,I'm using a T100 Wireless Speed and Depth System (Tacktick branded, bought in 2004 or 2005).My problem is that I'm seeing only dashes in my MN100 (T111) display, both for speed and depth (see attached). This appears to be a caused by no data being received by the display. The system had worked fine for years. However before seeing just dashes, there were some "hull battery.." or hull "hull power .." alerts displayed in T111 over time (even though hull transmitter was connected to the boat's 12V DC battery and power switch enabled. I should also mention that I had removed the boat battery over winter, so hull transmitter (T121) was without external power for 6-7 months. What I've tried so far:- Running through the health menu shows 1 node and only dashes for hull signal (see attached)- I've verfied that 12V DC are provided correctly to the hull transmitter- After locating hull transmitter and display next to each other, I ran the auto network procedure, which delivered 0 results/detectionsIt appears to me that the hull transmitter is sending no data to the display (this is more likely to me that both transducers are broken at the same time). Could this be caused by a disfunctional hull transmitter internal battery? Why is the auto network procudure not detecting any device? Is the hull transmitter broken? How can I totally reset/delete the the existing configuration and start over?Any thoughts highly appreciated.Thanks and Regards,  ChrisSee More