Hi list, built VE3ZAZ project (all okay Bert, thanks), have the following question about the Motorola Oncore GP Plus receiver that I use. 1 pps output (pin 7) with or no antenna is still present . Is this correct ? In this case is not possible know if GPS reciver works correctly. Any idea ? thanks in advance. Merry Xmas and happy 2007 de Joe, iv3pvd.