[time-nuts] Price of LTE Lite GPSDO vs Trimble Thunderbolt.

Pete Lancashire pete at petelancashire.com
Fri Oct 17 22:46:16 EDT 2014


No where did I mention comparing specifications.

It was a statement of an individual Joe being able to get a GPDSO for a
very reasonable amount.


Just a usable GPDSO nothing else.



On Fri, Oct 17, 2014 at 6:14 PM, Bob Camp <kb8tq at n1k.org> wrote:

> Hi
>
> The question on all of these setups is very much - what do you need?
>
> The T-Bolt was designed to meet some very specific requirements. It’s got
> an OCXO onboard because of that.
>
> A 48 hour battery backed Rb does something very different, it’s got
> different costs associated with it.
>
> A modern / up to date TCXO based unit makes some compromises to trade off
> against power and size.
>
> Depending on what your system needs are, each of the first two may
> uniquely fill a bill that the others will not and can not. If you need to
> run 120 days on battery, the third will win the contest easily. If you want
> to run on something other than GPS, number 3 is your choice.
>
> Cost wise, it all depends on when you bought what. I have Rb’s that cost
> less than $40 and T-Bolts that cost less than $100. You can still get
> surplus T-Bolt like objects (OCXO based surplus GPSDO’s) for under $130. I
> also have some stuff I’ve bought on eBay (and other surplus outlets) over
> the years that turned out to be less than perfect. Depending on surplus
> gear in a commercial system would be silly compared to using newly
> manufactured parts. It all depends on what you need.
>
> Bob
>
> > On Oct 17, 2014, at 5:19 PM, paul swed <paulswedb at gmail.com> wrote:
> >
> > Don't want to hijack any discussion and am looking forward to the ebay
> site
> > and ordering. Whats amazing is the power spec in addition to other
> specs. I
> > rechecked the spec 1/16th watt at 3.3V. My RB in the basement draws 24
> > watts just idling along and keeping two hefty SLA batteries charged for a
> > 48 hour run time if needed.
> >
> > I can clearly see the case of careful support system design such that a
> > battery set can be charged and even in a power failure run several days
> on
> > a small battery.
> > SLA 7 amp was something like 100 plus hours. Bert introduced me to some
> of
> > the Lithium battery technologies that can be had for reasonable cost and
> > are small and dense.
> >
> > But that said really no need for a battery since restarts are fast...
> > Lots to think about. Like LEDs drawing more power then the system and
> > sloppy base power supplies wasting power.
> > Regards
> > Paul
> > WB8TSL
> >
> > On Fri, Oct 17, 2014 at 4:53 PM, Pete Lancashire <
> pete at petelancashire.com>
> > wrote:
> >
> >> Sorry to create any  misunderstanding
> >>
> >> I was saying thanks to TVB/TAPR for all their effort, and Said/JLT for
> >> doing what they did for the group
> >>
> >> I was in no way comparing the used Thunderbolts to the LTE Lite.
> >>
> >> -pete
> >>
> >> On Fri, Oct 17, 2014 at 1:13 PM, Jim Sanford <wb4gcs at wb4gcs.org> wrote:
> >>
> >>> And, somehow I expect that my LTE-LITE will actually work, which my
> >>> thunderbolt never did.  (Very noisy)  It continues to collect dust....
> >>> On 10/17/2014 3:49 PM, Pete Lancashire wrote:
> >>>
> >>>> First three cheers to LTE for making these available.
> >>>>
> >>>> It reminds me when Motorola made a developers kit for the then
> >>>> new 68HC11 MCU available for $68.11.
> >>>>
> >>>> I know of one design win they got that more then made of their
> marketing
> >>>> costs.
> >>>>
> >>>> Another that hit me is with inflation the LTE Lite is not much more
> then
> >>>> what many of us paid for our Thunderbolts.
> >>>>
> >>>> For those new to the list ...
> >>>>
> >>>> https://www.febo.com/pipermail/time-nuts/2008-May/031100.html
> >>>>
> >>>> http://www.leapsecond.com/pages/tapr-tbolt/
> >>>>
> >>>> In 2008, $124, the LTE Lite in 2014 $195.
> >>>>
> >>>> With 'real' inflation (not the 11% you get online) the $71 difference
> is
> >>>> not much more.
> >>>>
> >>>> My two backup Thunderbolts cost me $145 each, just before they hit
> $200
> >>>> then became history.
> >>>>
> >>>> Again thanks to Said and JLT !!!!
> >>>>
> >>>> -pete
> >>>> _______________________________________________
> >>>> time-nuts mailing list -- time-nuts at febo.com
> >>>> To unsubscribe, go to https://www.febo.com/cgi-bin/
> >>>> mailman/listinfo/time-nuts
> >>>> and follow the instructions there.
> >>>>
> >>>>
> >>>
> >>> ---
> >>> This email is free from viruses and malware because avast! Antivirus
> >>> protection is active.
> >>> http://www.avast.com
> >>>
> >>> _______________________________________________
> >>> time-nuts mailing list -- time-nuts at 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 at 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 at 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 at febo.com
> To unsubscribe, go to
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
>



More information about the time-nuts mailing list