Steve, There are at least 20 Z3815A units in ZL Amateur hands that I know of, and many more in VK. They were 'rescued' by a friend in VK, and have been distributed with firmware and manual that we've worked out for them. As far as I can make out, they were not used in cellular systems here.
Unlike the Z3801A, Z3805A and Z3816A, the Z3815A is more than just a 'general purpose' unit. It has a complex back plane with all sorts of signals intended for E1/T1 phone systems. Other units I have met with these extra features include the Chongho GPSR-A (clone of the Z3815A), the Samsung GCRU-D and the Trimble (Nortel) NTGS50AA. All came from Australia, and I've no doubt there are several other types there as well. 73, Murray ZL1BPU _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.