John Miles wrote: >People with Z3801As tend to fiddle with them until the > cows come home in my experience, and that's fine if that's what you're > into, > but... wait, what list is this again? :)
I put my info and experience with Thunderbolts out there for the NUTS in this mail list. I have a few and I see people are looking for the info. I'd hate to see people spend $250 on something they might think is as good as a Z3801A (or its Trimble clone) or might misread the Thunderbolt webpage and think they are getting a Double-Oven AND in a few months will cost less than $100 ( I say this only because there is no market out there for a "few of hundred", used $250...actually now I see $375?!?!? mediocre 10Mhz GSPDO's. ( and I say mediocre from the NUTS perspective ;-} ) Anybody who is the least serious about 10Mhz is going to run across the mail list in a Google search. If the list group by gets to 100 people, that still leaves a couple hundred left over. I doubt that the price is going to stay above $100 let alone $200 after the initial rush, it doesn't make sense. Supply and demand. The market has now been flooded, demand will recede after the initial "ooh look!!" crowd rushes in, the price point will drop. My opinion of course (and Alfred Marshall's). Anyway, you're right. The commercially available Thunderbolt is good enough for a plug-n-play 10Mhz source, but if you want to be a "NUT" about it, get one of the industrial boards like the Nortel version if you can find it. Like I said, I'll wait till the price drops to under $100 bucks, that way I could, without fear, fiddle with it till the cows come home. ----- Original Message ----- From: "John Miles" <[EMAIL PROTECTED]> To: "Discussion of precise time and frequency measurement" <time-nuts@febo.com> Sent: Thursday, February 15, 2007 11:58 Subject: Re: [time-nuts] Thunderbolt - Hardware Versions -PerformanceDifferneces >I guess it depends on whether you are after a frequency reference or a >phase > reference. My (commercial) Thunderbolt has no problem delivering 1E-10 or > better over 1 second (usually MUCH better). Jitter has never been a > problem > for me, and I couldn't care less about holdover performance, since I don't > run my own cell site. > > If all you want is a reliable, plug-and-play source of 10 MHz, there are > literally no drawbacks to these boxes. They just work, and $200-$250 is a > fair price for them. People with Z3801As tend to fiddle with them until > the > cows come home in my experience, and that's fine if that's what you're > into, > but... wait, what list is this again? :) > > -- john, KE5FX > >> -----Original Message----- >> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] >> Behalf Of [EMAIL PROTECTED] >> Sent: Thursday, February 15, 2007 7:35 AM >> To: Discussion of precise time and frequency measurement >> Subject: [time-nuts] Thunderbolt - Hardware Versions - >> PerformanceDifferneces >> >> >> I'm lucky enough to own a couple of Thunderbolts as well as some of the >> different telecom versions and they DO NOT have the same >> performance. The >> commercially available Thunderbolt (the one comes in the little >> red box) has >> the least favorable performance when compared to the industrial versions. >> >> > > > _______________________________________________ > time-nuts mailing list > time-nuts@febo.com > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts