[time-nuts] Thunderbolt - Hardware Versions - Performance & Differeneces

[TheInfamousFlavio at hotmail.com]

Actually John, I just realized the same thing happened with the RFTG units 
from the other vendor. (Both of my XO units did NOT work btw :-(  )

The vendor was tipped off that "a bunch of people" were interested and the 
price shot up from $20 to $80 to $120 to $180 to $280! And hardly any 
purchases were made at the point.  With respect to the organizers of the 
group purchase, they practically did the same thing with these Thunderbolts. 
Now the vendor is aware that there are a large group of people interested in 
them and where they are,  he just has to go to the time-nuts mail archive 
and see that there 30-50-80 etc people interested in them... he WON'T drop 
his price until they buy.  His eyes see $$$.  He probably doesn't like me 
though.

If anyone bought the other Thunderbolt board that's up on ebay, could you 
please post info on them.




----- Original Message ----- 
From: "John Miles" <jmiles at pop.net>
To: "Discussion of precise time and frequency measurement" 
<time-nuts at 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: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com]On
>> Behalf Of TheInfamousFlavio at hotmail.com
>> 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.
>>
>>
>
>
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