As far as I'm aware, the Thunderbolt E models are the only one ones with firmware new enough to handle the WNRO. Even the single-oven OXCO version of the E is EOL, but it at least is new enough.
I'm also pretty sure the Es have BNC connectors, at least both of mine do. -Dustin On Fri, Nov 15, 2019 at 2:30 PM Taka Kamiya via time-nuts <time-nuts@lists.febo.com> wrote: > > You mentioned "this particular model," referring to the RED version, is no > longer manufactured or supported. (no firmware support) But does that mean > ones OLDER than that is still supported for firmware upgrades? Where do I go > on Trimble's website? There was nothing on firmware under "support". > > Thank you for helping out this noob! > > > --------------------------------------- > (Mr.) Taka Kamiya > KB4EMF / ex JF2DKG > > > On Friday, November 15, 2019, 2:48:00 PM EST, Gregory Beat via time-nuts > <time-nuts@lists.febo.com> wrote: > > Taka - > > The majority of the surplus GPSDO units come from the mobile/cellular > telecommunication companies since the late 1990s. Surplus equipment occurs > due to Service advances (2G—>3G—>4G/LTE—>5G), Technology > upgrades/obsolescence, and Consolidation/merger of telecom companies. > == > NO Distinct Advantage in owning the Trimble Thunderbolt models versus other > options, > some would note a few disadvantages (now 10 years later, like 1024-week > rollover). > == > A large number of Trimble Thunderbolt GPS Disciplined Oscillators (GPSDO) > appeared on the surplus market in 2007 and 2008. Majority of these were the > “THIN Model” (no internal DC-DC converter). > > At that time (2008) TAPR Time-Nuts had a Group Buy, and offered a KIT (~ > $225). > Tom Van Baak (tvb) and other members of Time-Nuts tested units and packaged > these with a tri-voltage (+5, +12, -12) power supply for Group Buy > participants. > http://www.leapsecond.com/pages/tapr-tbolt/ > > W6AER built (DIY) this Rack Case for his surplus Thunderbolt & power supply. > https://w6aer.com/10mhz-gps-disciplined-oscillator-gpsdo-trimble-thunderbolt/ > = > The RED Thunderbolt model has a Larger case because it contains the SMPS (24V > to Tri-Voltage) as well as the GPSDO (THICK model). > http://trl.trimble.com/docushare/dsweb/Get/Document-10015/ > This specific model is no longer mfg. or supported by Trimble (no firmware > updates provided). Surplus “Red” units have appeared from 911 telephone > centers (past 5 years), since the RED model does not handle the 1024-week > rollover. The “cheapest” has been ~$250 (2018 price, I paid) for a surplus > unit from a Pennsylvania 911 center. > https://en.wikipedia.org/wiki/GPS_Week_Number_Rollover > The Lady Heather software (Mark Sims) “notes & corrects” the 1024-week > rollover occurrence with these Trimble units, on its computer display. > ANY OTHER Solution would also have to “Correct” for the 1024-week rollover. > — > The BLUE Thunderbolt E model is Current Trimble Production ($$), hence RARELY > seen as Surplus. Trimble refreshed their hardware, simplifying design (newer > components). > http://trl.trimble.com/docushare/dsweb/Get/Document-383329/ > Trimble Thunderbolt-E Product Page > https://www.trimble.com/Timing/thunderbolt-e.aspx > = > THUNDERBOLT Frequently Asked Questions (from Group Buy, a decade ago). > http://www.ko4bb.com/getsimple/index.php?id=time-nuts-thunderbolt-gpsdo-group-buy > > g. beat, w9gb > chicago > == > Date: Fri, 15 Nov 2019 04:02:56 +0000 (UTC) > From: Taka Kamiya <tkami...@yahoo.com> > To: Time Nuts Group <time-nuts@lists.febo.com> > Subject: [time-nuts] Confusion over Thunderbolt - noob is going crazy > > I have several GPSDO, BUT I don't have a TRUE Trimble Thunderbolt. I want > one. > There seem to be infinite variations of them. So far (I have been looking > for a week), there are no good summary (or even a summary) of various types > and how they are different. > I know there is a thin type that looks to be 1" or so thick, and thick type > that is about double that. I know one model has a Blue label (Thunderbolt E) > and an earlier model had a Red Label (Thunderbolt). > I know there are differences in the Internal Crystal Oscillator/Oven. > > Spending $1500 for new one is out of question, but price seems to vary from > $150 to $500 for used ones. Since most of these surplus units now come from > China, I'd think they are reclaimed equipment. Is this assumption right? > Any reliable source?? > I am a bit skeptical with the surplus market the way it is. Are they all > telecom quality?? > Thank you very much. > ---------------------- > (Mr.) Taka Kamiya > KB4EMF / ex JF2DKG > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. > > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
