The CW-12 consists of the CW-25 mounted on a circuit board with some glue logic, connectors, etc. The CW-25 itself is the surface-mount module in the middle of the CW-12. Compare the pictures - you'll see what I mean. Both units are listed as having a tracking sensitivity of -155 dbm. I don't know what you mean when you say that the CW-25 is more sensitive.
By the way, the CW-12 works great indoors. Through a typical wood-frame construction I usually get 7 or 8 satellites with a cheap active patch antenna. With a VIC-100 timing antenna, I usually have 10 or more satellites. 1 PPS performance is also very good. Multiple measurements of 1000 periods shows a standard deviation of <5 ns with a min-max range of < 30 ns. This is without sawtooth correction because this unit doesn't support it - even with the Motorola software. Ed ----- Original Message ----- From: Peter Vince <pvi...@theiet.org> Date: Tuesday, December 29, 2009 10:21 am Subject: Re: [time-nuts] Timenoob - Cheap and simple 10MHz reference > Semiconductorstore.com also have the CW25-TIM at a cheaper price ($64 > vs $89) and it is more sensitive, so can possibly work indoors. They > both, apparently, use the same NavSync chips, so does the '25 have > disadvantages I haven't spotted? > > Peter > > > 2009/12/28 Hal Murray <hmur...@megapathdsl.net>: > > > >> Does the factory sell direct in small quantities ? > > > > From here (California), googling for >Navsync CW12-TIM< finds: > > > http://www.semiconductorstore.com/pages/asp/supplier.asp?pl=0138&gclid=CL_G5ar> > W-Z4CFU1M5Qod1XNWLA > > (Sorry for the line wrap.) > > _______________________________________________ > 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. > _______________________________________________ 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.