My Antuino arrived this week and I was quite excited to get it up and running. However, after inserting the 6 AA batteries and switching it on .............dead, no power on the display. So very disappointing in deed, when purchasing a new unit. I eventually opened the Antuino, pulled out the old trusty Fluke DVM and started to trace the power. After a few minutes of checking, I found that pin 3 of J1 ( External DC power connector) had a dry joint on the component side of the board. A quick fix with the old Weller and some solder and all sorted. Ashhar thanks for a very useful instrument. Every Ham should have one of these in their shack.