That is true but: a) pagers turn on/off the recieving circuit and logic is always on. b) When a message is going to be transmitted the POCSAG protocol start with a "preamble signal" repetions of 1 & 0, at least 576 bits. This makes a pagers wake up (turns on reciving circuit permanly) and listen to the syncronization & rest of the batches. pager will return to the battery-save-cycle if the CODE ID is not his or after recivieng the message. About FLEX protcol, forget it is to complex and motorola will not give FREE this kind of information. Regards Juan Jimenez. ______________________________ Reply Separator _________________________________ Subject: Re: [OT] Pager Transmitter Author: PDRUNEN@AOL.COM at smtplink-dl Date: 03-9-99 8:26 AM I'm not sure about POCSAG but I understand that in order for the pager receiver to last so long on a 1.5V battery is that it knows when to listen for a page and when to shut off. Reduced current draw extents battery life of course. If you are not on a network that provides a sync signal then your pager will cycle on/off looking for the signal. That don't mean that it will not work as you want, you may just have to live with reduced battery life or transmit a sync signal during idle times from the transmit location.