Hi All,
Has anybody integrated a Rubibium 10 MHz clock to their thunderbolt in
place of the onboard oven?
The reason for the question, I have a perfect working home made Rubidium
source and distribution amp that I use in the stack. I have considered
integrating it to the Thunderbolt, thus
This is correct, to the sense that a working GPSDO has sufficient status
information that you know with great probability of being right when the
device operates per specification, particularly when there is a good GPS
signal available from several satellites (3 minimum, 5 is good, more is
From the pictures on eBay, that board has a Trimble oven.
I have a cased Thunderbolt, bought a few years ago, and its OCXO is marked as
follows
Piezo (tm) Crystal Company, Carlisle, PA
Model 2900082 - 112
Freq. 10.000 MHz
S/N 1331
Does anybody know how the two OCXOs compare ? If the Trimble is
I have used an Acutime2000 with the Palisade driver, it works fine but
lacks (still?) an official maintainer. Though it has Dr Mills support,
so it has resisted attempts to remove it.
Being an official maintainer is not a big deal. The main duty is to do a
sanity check and make sure the
] On
Behalf Of John Miles
Sent: 13 February 2007 07:54
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Thunderbolt GPSDO
A) $250 is a heckuva good deal on a Thunderbolt, if that's what it is. If
they end up going for less than that, I'll buy a couple just to squirrel
away
time and frequency measurement'
time-nuts@febo.com
Sent: Tuesday, February 13, 2007 7:06 AM
Subject: [time-nuts] Thunderbolt GPSDO
I'm interested in one, but hopefully for less then $250. I can't
understand
why the sole bidder started so high?? I suspect it's a shill bid??
It appears
I used the Contact Seller button and asked him where the units came from.
He confirmed they were from the same E911 box I got mine from. He must of got
that pallet I was trying to get! @#$%
Any ways here are my comments on them all though I'm a newbie at this.
Mine used a +12, two +5 and
Mine used a +12, two +5 and a -7 VDC. I know the manual says the
thunder bolt requires a -12 but mine had a -7 on it
Is the -12 used for anything other than driving the RS-232 signals? I expect
that would work with almost anything.
The data out is Trimble propriety and you have to use
In a message dated 2/13/2007 09:13:50 Pacific Standard Time, [EMAIL PROTECTED]
writes:
used the Contact Seller button and asked him where the units came from.
He confirmed they were from the same E911 box I got mine from. He must of
got
that pallet I was trying to get! @#$%
Hi
: Re: [time-nuts] Thunderbolt GPSDO
Mine used a +12, two +5 and a -7 VDC. I know the manual says the
thunder bolt requires a -12 but mine had a -7 on it
Is the -12 used for anything other than driving the RS-232 signals? I expect
that would work with almost anything.
The data out
In a message dated 2/13/2007 12:34:00 Pacific Standard Time, [EMAIL PROTECTED]
writes:
As for the price, I would hold off. It is a nitch market. His first few may
go for $250 or more but eventually the prices will go down. He has a low EBAY
rating so he is new. Eventually he will figure
Tell me more about NTP and GPSD?
I seem to remember downloding something that was suppose to
translate Trimbles messages to standard NEMA data but gave up trying
to make it work.
All I was trying to say is that any reasonably determined hacker should be
able to get something working.
-nuts] Thunderbolt GPSDO
In a message dated 2/13/2007 09:13:50 Pacific Standard Time, [EMAIL PROTECTED]
writes:
used the Contact Seller button and asked him where the units came from.
He confirmed they were from the same E911 box I got mine from. He must of
got
that pallet I was trying to get
Connie Marshall wrote:
Is a GPS antenna and a Power Supply the only extras needed to have a fully
functional unit.
Connie
K5CM
That would be the case for a standard Thunderbolt.
Now, to know if your unit is any good, you need two others, and an Rb or
Cs oscillator would not hurt...
Do
On Wed, February 14, 2007 2:05, Hal Murray said:
I haven't looked carefully at the Trimble support in ntp. A quick poke at
google shows some discussion about adding Thunderbolt support, but I don't
see it in the latest source code.
Two other what? Thunderbolts? I'm new at this . . . would you be so
kind as to elaborate?
Thanks.
Steve K8JQ
Didier Juges wrote:
Connie Marshall wrote:
Is a GPS antenna and a Power Supply the only extras needed to have a fully
functional unit.
Connie
K5CM
That would
Well, some of us who have been on this list much longer than me can tell
you that when you only have one clock, it's pretty hard to tell if it's
working right, or how accurate it is. If you have two clocks, they
probably won't agree perfectly, and you have no way to tell which is
right, if
when you
install it.
-- john, KE5FX
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Behalf Of Didier Juges
Sent: Tuesday, February 13, 2007 10:12 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Thunderbolt GPSDO
Well, some
I would be interested in one piece too, to keep company to the one I
already have :-)
(always have a backup...)
The starting price is OK with me, but considering it does not have the
DC/DC converter, I would be reluctant to put more into it.
Certainly it would make sense not to go into a
I'm interested in one, but hopefully for less then $250. I can't understand
why the sole bidder started so high?? I suspect it's a shill bid??
It appears it would be easy to use as the data sheet manual are available
on-line. This, unlike the RFTG units, which have no manufactures (or
Lucent)
understand the
basic auction model.
-- john, KE5FX
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Behalf Of Robert E. Martinson
Sent: Monday, February 12, 2007 10:07 AM
To: 'Discussion of precise time and frequency measurement'
Subject: [time-nuts] Thunderbolt GPSDO
As previously proposed, I would be interested in a multiple purchase of a
Trimble Thunderbolt GPSDO now listed on eBay. This version requires +- 12vdc
+5vdc. A reasonable supply for these voltages is available from MPJA for $5.95.
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