[time-nuts] Thunderbolt plug and play

Keith G Malcolm kmalcolm at tpg.com.au
Tue Jun 30 18:59:52 EDT 2009

Hello David,

I'm a complete beginner in this field, but after a lot of reading and 
following these threads, I finally bought a Tbolt from China via 
e-bay. Arrived in just under a week by post, plugged it in to power 
and antenna and got 10 MHz output.

I eventually connected a lap-top PC via a USB-serial adaptor cable, 
ran Tboltmon (downloadable from the Trimble site) (took longer to 
find which COM port the thing was using) and got a nice display. The 
unit was still showing its previous location as reference, so I just 
used Tboltmon to reset to my location using the position data shown 
by the Tbolt. Couldn't have been easier. I got mine from seller nhbbobb.


Keith G Malcolm

At 03:44 AM 1/07/2009, time-nuts-request at febo.com wrote:

>Message: 1
>Date: Tue, 30 Jun 2009 13:28:07 +0100
>From: "David Hilton-Jones" <David.Hilton-Jones at clneuro.ox.ac.uk>
>Subject: [time-nuts] (no subject)
>To: <time-nuts at febo.com>
>Message-ID: <4A4A12E7020000690001710C at gwmail.jr2.ox.ac.uk>
>Content-Type: text/plain; charset=UTF-8
>I am not very much interested in how it is achieved, but wonder if a
>10MHz oscillator locked to GPS is now available as "plug&play" rather
>than needing a lot of time/effort/building.
>I note the Thunderbolt units available from the Far East on ebay
>for~?80gbp. Are these really P&P - that is, just connect PSU and
>aerial and out comes 10MHz locked to GPS? Is it necessary to connect to
>a computer via the RS232 link, or is that just there if you want to
>fiddle and be clever?
>If so, then this may be preferrable to running my rubidium source
>What I am interested in is stability, not ultiamte accuracy.
>As always, sorry for the naivety of the question.
>David, G4YTL

More information about the time-nuts mailing list