My two cents, from living with both Thunderbolts and LPROs. They are entirely different kinds of beasts, and aren't suitable for long-term cohabitation without work.
Tbolts like thermally stable environments, and are happier (meaning ADEV trending towards zero) when they are powered up in a stable environment for a long time (and with an antenna having a clear view of the sky). LPROs on the other hand, require a heatsink or thermal mass to dump heat and keep the baseplate at a safe operating temperature (if you're running one for more than ten or fifteen minutes at a time). The nature of the rubidium beast is also such that once it's locked, it's not going to vary a whole lot; I also don't tend to run a rubidium all the time, unlike the thunderbolts. I'm looking to package a LPRO in a portable-ish manner with a backup battery good for an hour or so of operation. The idea is to check/trim it with a (non-portable) Thunderbolt and then carry it to where it's needed. Are you proposing to use the rubidium to provide a reference until the tbolt acquires lock? 73 bob k6rtm ------------------------------ Message: 2 Date: Fri, 22 Apr 2011 16:48:07 +0100 (BST) From: <g4...@btopenworld.com> To: time-nuts@febo.com Subject: [time-nuts] Housing LPRO and Thunderbolt together Message-ID: <425854.57579...@web86602.mail.ird.yahoo.com> Content-Type: text/plain; charset=utf-8 I have a dilemma and wish to access the collective wisdom of the group to advise a solution. I am building a clock generator based on a Thunderbolt. I have an LPRO and would also locate this in the same enclosure. I will also add a distribution amp and a divide chain in due course. The ultimate purpose of the set up is to provide a self contained clock generator set for my other test equipment, and also an experimental workstation for Rubidium and GPS disciplined experiments. _______________________________________________ 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.
