1) Somewhere I read that if you do not export track data from the unit to the SD before powering unit down, you will loose the depth data. Is this true? I will wait for an answer before collecting track data to use in DrDepth.
2) When you download the unit or SD into HB PC, you are downloading a Copy, not Moving the data?
598 SI and HB PC v 4.3.8 w/Windows 7
PS: Thanks Greg for recommending upgrading XNT-9-SI-180-T to an HDSI. I did it and can see great detail at 90'+ in my local lake. The customer service rep (Glenda) was great and allowed our respective transducers to cross in the mail, getting me on the water in 5 days.