Last year I purchased as a mobile backup a little Lowrance XOG normaly used on Land for Vehicular Street navigation
with about 4".
For this unit I also purchased a Navionics
card for Marine navigation
for Central & South America
. Just now I am getting arround to familiarize myself with this thing but so far I am not impressed with the little data I am getting.
No Port Charts
just Land contours with water depth
What am I doing wrong?????????
Thanks in advance for your knowledge based input.