Hi list, Constructed the VE2ZAZ gps board (pic and board from Bert) , is connected to Rockwell Jupiter receiver and HP10811. Running Montrol software the conditions are following: FLL STATE : UNLOCKED ALARM LATCH: HOLDOVER DAC value : 9440 all Montrol commands are ok , also manual DAC, 1 pps is ok. Where I wrong ? thanks in advance de Joe iv3pvd.