Postcard RTK: Base mode with msm7 messages?

GPS/GNSS
11

I thinks the current build has 7 as the default..

BTW this code is NOT wrap-safe (49 days) @PaulZC

} while (isBlocking && (millis() < (start + waitForSemaphoreTimeout_millis)));

Needs to be of the form

} while (isBlocking && ((millis() - start) < waitForSemaphoreTimeout_millis));