Synchronized data acquisition (cRio9030) without GPS or internet
I am using three cRIO9030 modules to acquire noise in the field. I don't have internet or any other wireless connectivity (like GPS, GSM, etc) which can be used to synchronize the three devices. I want to acquire the data every morning from 11am to 7pm. Also, I want to do this remotely (without being physically present at the field).
Thanks in advance!