Oh Good Lord - not paying attention to the units! Sorry guys! Peter.
2009/12/29 Bruce Griffiths <bruce.griffi...@xtra.co.nz>: > -185dBW = -155dBm > so both sensitivity measures are equivalent. > > Bruce > > Peter Vince wrote: >> >> Thanks Ed, yes, I hadn't looked closely enough at the pictures. >> >> The "higher sensitivity" I mentioned came from the second line of the >> "Features" section near the bottom of: >> http://www.semiconductorstore.com/cart/pc/viewPrd.asp?idproduct=41599 >> >> "Enables indoor use -173 dBW acquisition and -185 dBW tracking" >> >> although admittedly right underneath that in the "Specifications" >> section is does say: >> >> "Track Sensitivity: -155 dBm" >> >> A cased of "specmanship"? >> >> Peter >> >> >> >> 2009/12/29 Ed Palmer<ed_pal...@sasktel.net>: >> >>> >>> 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. >>> >>> ______________________________________________________________________ >>> This email has been scanned by the MessageLabs Email Security System. >>> For more information please visit http://www.messagelabs.com/email >>> ______________________________________________________________________ >>> >>> >> >> _______________________________________________ >> 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. > > ______________________________________________________________________ > This email has been scanned by the MessageLabs Email Security System. > For more information please visit http://www.messagelabs.com/email > ______________________________________________________________________ > _______________________________________________ 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.