I've found yet another good way to get data into a computer.
Sparkfun sells a bundle with an Arduino and a student copy of Labview
for $50 total. All the analog and digital pins are pulled into
LabVIEW and then you can drag and drop the signals into processing
blocks and connect those to graphs a
I think lots of people have designed MCU based HPIB interfaces - the
problem is that most of them are, like mine, designed to solve a specific
problem and there is no subsequent incentive to clean up the documentation
to the point where you wouldn't be embarrased to release it to the public
- at l
Here's a start: http://www.leapsecond.com/museum/fei5650a/
Then:
http://www.ko4bb.com/dokuwiki/doku.php?id=precision_timing:rubidium_oscillators
Then google: "5650A site:febo.com"
On 1/13/2012 5:41 PM, Rich (Buckeye) wrote:
Looking for FE-5650A Rubidium Frequency Standard Information.
I ha
On 01/13/2012 01:22 AM, Javier Herrero wrote:
For providing ntp, probably the best way is to use ntp :)
Ralph Smith did a good integration for BSD NTP. I patched it and wrote
some startup and monitoring scripts for it for Ubuntu.
See http://wa5znu.org/2011/08/tbolt/
I run Heather under W
It runs on Wine. Not 100% perfect but well enough to use it.
If it is to do more, it needs a re-write. I'd like to see a few features
(1) It should always run in client server mode. There is no reason to
have the GUI and display talk to hardware directly. Then you can quit
the GUI and still l
Looking for FE-5650A Rubidium Frequency Standard Information.
I have obtained a FE-5650A unit that came out a piece of equipment made
for Lucent, which I think is telco equipment. RFS Part # FE-5650A UN
62832, S/N 0404-71672 Option 5650A OPTION CPOM. The options do not match
with anything I ha
On 1/13/12 3:46 PM, Chris Albertson wrote:
On Fri, Jan 13, 2012 at 3:18 PM, Jim Lux wrote:
On 1/13/12 2:51 PM, Chris Albertson wrote:
$150 is $130 more than $20. It depends on if an ISA type computer
shows up for free. I'm having doubts that one will. They seem to
have become valuable. T
I'm confused. Is there a Linux version of
Lady Heather available? Or would I have to
run it on WINE?
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On 01/13/2012 06:34 PM, Bob Camp wrote:
Hi
Lady Heather does not seem to like the Trimble CDMA units.
That Lady Heather is one picky lady. It would be good if we could train
her to dominate a larger audience,,, I would love to use here for my
Z38xx clocks as well.
Cheers,
Magnus
_
A PWM controller is bang-bang. Just means that the active drive has two
states. The (usually) linear response of the system is provided by some
kind of low-pass filtering in the controlled device. PID is a type of
protocol used in the feedback loop. The feedback has a Proportional, an
Integral, and
On Fri, Jan 13, 2012 at 3:18 PM, Jim Lux wrote:
> On 1/13/12 2:51 PM, Chris Albertson wrote:
>>
>> $150 is $130 more than $20. It depends on if an ISA type computer
>> shows up for free. I'm having doubts that one will. They seem to
>> have become valuable. The machine would need to be at lea
Fellow nutters;
A comment on something posted earlier today.
I know this is off topic,(except for the time-stamp-GPS anteena comment ;-))
but the web site http://water.weather. gov/ahps/ lists all the hydrologic
monitors around the county. There are two near here with the crossed yagis
pointing
The controller looks at the 10 MHz from the Rb and a 1 Hz signal from
either a GPS or a tbolt. Over the years I have been very happy with the Shera,
except for the DAC. I control my Rb,s to .1 C.
In a message dated 1/13/2012 6:06:05 P.M. Eastern Standard Time,
albertson.ch...@gmail.com wr
On 1/13/2012 5:37 PM, Chris Albertson wrote:
What's "bang-bang servo?" (other than a techno band -
http://www.myspace.com/bangbangservo )
A home thermostat is the best example. It is a servo with no
proportional control, just on and off.
So, is a common industrial PID controller, which only
On 1/13/12 2:51 PM, Chris Albertson wrote:
$150 is $130 more than $20. It depends on if an ISA type computer
shows up for free. I'm having doubts that one will. They seem to
have become valuable. The machine would need to be at least a Pentium
II so it could boot off the network and then mou
Stabilizing now.
Added the 5v 7805 included in the teddy bear and off it went.
Follows current consumption as stated on the list.
Still settling in compared to the ref thats been running so will see after
a few hours.
Clearly the 7805 needs a heat sink and I clamped a vice grip on for the
moment.
On Jan 13, 2012, at 17:51, Chris Albertson wrote:
>
>
> I'm surprised that no one has built a GPIB controller from a uP.
> Electrically the GPIB is simple and slow by modern standards.
>
Several have. That is basically what the prologix is. There is another one you
see on eBay quite oft
On Fri, Jan 13, 2012 at 2:42 PM, Jim Lux wrote:
> On 1/13/12 2:33 PM, Chris Albertson wrote:
>>
>> On Fri, Jan 13, 2012 at 2:19 PM, wrote:
>>>
>>> Are we not overdoing it. 7E-13 for $15 KISS, and if you want to go beyond
>>> that use a $ 30 analog version.
>>> Looking right now at 1 E -14, I do s
GPIB is not realy slow by todays standars. It's still capable of
transfering more data pr sec than USB 1, there is some notes about it at
NI.
The Prologix box consist of an an microcontroller and an USB chip or such,
but the programming involved in order to get it all working is extencive if
you wa
$150 is $130 more than $20. It depends on if an ISA type computer
shows up for free. I'm having doubts that one will. They seem to
have become valuable. The machine would need to be at least a Pentium
II so it could boot off the network and then mount some disk space. I
know what you mean abo
On 1/13/12 2:24 PM, Hal Murray wrote:
albertson.ch...@gmail.com said:
and send the data out the GPIB but getting that into a computer is the hard
part.
OK so I check on eBay. Most are $300 but If you can find a computer with
an old ISA slot then there are working GBIB cards for about $20.
On 1/13/12 2:33 PM, Chris Albertson wrote:
On Fri, Jan 13, 2012 at 2:19 PM, wrote:
Are we not overdoing it. 7E-13 for $15 KISS, and if you want to go beyond
that use a $ 30 analog version.
Looking right now at 1 E -14, I do se temperature influences, with my heat
sink stable to .1 C. Mainly due
> What's "bang-bang servo?" (other than a techno band -
> http://www.myspace.com/bangbangservo )
A home thermostat is the best example. It is a servo with no
proportional control, just on and off.
Chris Albertson
Redondo Beach, California
___
time-nut
On Fri, Jan 13, 2012 at 2:19 PM, wrote:
> Are we not overdoing it. 7E-13 for $15 KISS, and if you want to go beyond
> that use a $ 30 analog version.
> Looking right now at 1 E -14, I do se temperature influences, with my heat
> sink stable to .1 C. Mainly due to the fact that is only one side of
On 1/13/2012 4:30 PM, Don Latham wrote:
Oh, I hate to be a pedant, but are we talking about dithering, that is
random perturbations to remove things like hysteresis, or using the
finite steps as a bang-bang servo?
Not random, but a PWM like control to get better precision from a given
granular
On Fri, Jan 13, 2012 at 1:09 PM, wrote:
> Can you do the programming?
> Bert Kehren
(1) ANYONE can program a picaxe, that is their main selling point.
(2) The next question is "Can you describe in detail, using plain
English exactly what needs to be programmed?" If so then go to (1).
Seriou
albertson.ch...@gmail.com said:
> and send the data out the GPIB but getting that into a computer is the hard
> part.
> OK so I check on eBay. Most are $300 but If you can find a computer with
> an old ISA slot then there are working GBIB cards for about $20.
Many of us are happy with the Prol
Are we not overdoing it. 7E-13 for $15 KISS, and if you want to go beyond
that use a $ 30 analog version.
Looking right now at 1 E -14, I do se temperature influences, with my heat
sink stable to .1 C. Mainly due to the fact that is only one side of the
unit and it is clearly designed to use
Hi
What we are talking about is toggling the least significant bit in the DDS to
achieve a resolution of less than that LSB. It could be done to a set period
(like a PWM) or pseudo randomly to reduce the noise signature. Either way,
roughly a 16 element long "period" should be quite adequate.
Hi Bert: The point to the picaxe is that you can do your own
programming; the learning curve is very shallow, there is a really good
manual, and the investment is really very small. There is a very large
user community, too. Investigate at: http://www.picaxe.com/
The picaxe started out in England f
Oh, I hate to be a pedant, but are we talking about dithering, that is
random perturbations to remove things like hysteresis, or using the
finite steps as a bang-bang servo?
Don
Charles P. Steinmetz
> Bert wrote:
>
>>wrong there is no DAC involved, it is a DDS
>
> Ahh. Not so simple, then. I sti
Right, Poul! And I've found, by lots of headbanging on walls,
GROUNDLOOPS! even at 12 bits...
Don
Poul-Henning Kamp
> In message <20120113200200.14805.qm...@s421.sureserver.com>,
> "=?iso-8859-1?Q?be
> ale?=" writes:
>
>>I have some and they work well. Here's a plot of voltage vs time
>>on an
Can you do the programming?
Bert Kehren
In a message dated 1/13/2012 3:56:47 P.M. Eastern Standard Time,
d...@montana.com writes:
I would just use a picaxe, has a simple to use IDE and several different
sizes. No need for assembly, cheap enough for quasi-production.
Don
Chris Albertson
>
Dither is only an issue when using a control loop. The difference is that
with dithering you eliminate the D/A portion which doubles the cost from $
15 to $ 30. I personally prefer the analog approach. The same design can
have both options. Part of the program.
Bert Kehren
In a message da
Thank you. That takes care of it.
In a message dated 1/13/2012 3:58:47 P.M. Eastern Standard Time,
jmfra...@cox.net writes:
Mine reads:
MAX3232EWE
0332
and has a 16 SOIC(W);16 pin package.
John WA4WDL
--
From:
Sent: Friday, January 13
Mine reads:
MAX3232EWE
0332
and has a 16 SOIC(W);16 pin package.
John WA4WDL
--
From:
Sent: Friday, January 13, 2012 2:17 PM
To:
Subject: [time-nuts] 5680 RS232
Can some one tell me which RS232 chip is used in the 5680.
Thank you.
__
I would just use a picaxe, has a simple to use IDE and several different
sizes. No need for assembly, cheap enough for quasi-production.
Don
Chris Albertson
> On Fri, Jan 13, 2012 at 3:19 AM, wrote:
>> What we know is that you can set the Rb in 7 E-13. Dithering would
>> allow
>> even closer set
On Fri, Jan 13, 2012 at 6:29 AM, Jim Lux wrote:
> I suppose one could use some sort of GPRS cellular service and get time, but
> then you're on the hook for a monthly subscription fee, etc.
They sell such devices. They don't require a subscription because
they are receive-only. You don't need
Bert wrote:
wrong there is no DAC involved, it is a DDS
Ahh. Not so simple, then. I still don't much like the notion of
dithering, but it may be the only alternative. Or, as has also been
suggested here, add a manual C-field adjustment (but that would not
change the fact that the RS-232
wrong there is no DAC involved, it is a DDS
In a message dated 1/13/2012 3:36:33 P.M. Eastern Standard Time,
charles_steinm...@lavabit.com writes:
Bert wrote:
>we would be talking +- one step and using different rate but reading the
>frequency over 1000 seconds would be my answer.
Rathe
Bert wrote:
we would be talking +- one step and using different rate but reading the
frequency over 1000 seconds would be my answer.
Rather than dithering the existing 7e-13 steps, perhaps it would be
simpler to adjust the 5680A step size? Presumably, the C-field is
being controlled by the
If you have a PC and an AC coupled audio interface then send a low
frequency audio saw tooth wave to the audio out. Connect that and the
device to be measured to an LM311 comparator. The comparator will
flip when your output voltage passes the DUT's voltage. One could
get fancy and use multipl
In message <20120113200200.14805.qm...@s421.sureserver.com>, "=?iso-8859-1?Q?be
ale?=" writes:
>I have some and they work well. Here's a plot of voltage vs time
>on an AA battery, showing the 18 bit performance (1 LSB = 15 uV).
>Noise is generally +/-1 LSB.
>https://picasaweb.google.com/lh/photo/q
> Bringing up a question: Does anyone know of a cheap (<$20ish) USB voltage
> sensor (16 bits or better, ideally).. I can see one of those Atmel USB
> capable micros (like the one on the Arduino Uno) hooked to a dual slope or
> successive approximation ADC.
Doesn't quite meet your price, but ther
Can some one tell me which RS232 chip is used in the 5680.
Thank you.
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same conclusion I made that it was a heater and insulation.
But at least it was a good video
Regards
Paul
On Fri, Jan 13, 2012 at 12:50 PM, Bob Camp wrote:
> Hi
>
> Interesting videos.
>
> Answers to a couple of the questions he asks in the tear down video:
>
> The foam is there as thermal insul
I think the dither issue should be explored separately. Its finding should
be included in the Controller. During development I understand the need for
on the board programming, but unlike OCXO's which there are many of, I
envision this controller dedicated to the FEI 5680A using 10 MHz and a
On Fri, Jan 13, 2012 at 8:37 AM, Jim Lux wrote:
> On 1/13/12 8:15 AM, Chris Albertson wrote:
>>
>> On Fri, Jan 13, 2012 at 3:19 AM, wrote:
>>>
>>> What we know is that you can set the Rb in 7 E-13. Dithering would allow
>>> even closer setting, the question is what rate will the Rb accept with
>>
Oops. That last message was supposed to be off-list. Sorry. Ed
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GPS Testing January 16, 2012 aEUR" January 24, 2012 Patuxent River, MD.
Notice Number: NOTC3454
GPS Testing PAXR GPS 12-01
January 16, 2012 aEUR" January 24, 2012
Patuxent River, MD.
See attached
If dither is a consideration it will be the most critical test.
Bert Kehren
In a message dated 1/13/2012 12:52:16 P.M. Eastern Standard Time,
li...@rtty.us writes:
Hi
Another thing that would need to be investigated - How fast (and how
uniformly) does it respond to a frequency set command. I
we would be talking +- one step and using different rate but reading the
frequency over 1000 seconds would be my answer. Start at 1 1 Hz rate and
observe the lock indicator. At the same time measure frequency.
Bert Kehren
In a message dated 1/13/2012 12:52:16 P.M. Eastern Standard Time,
l
Hi
Another thing that would need to be investigated - How fast (and how
uniformly) does it respond to a frequency set command. If you dither, you
care about how long it's at this or that frequency. Measuring 7x10^-13
frequency shifts on the unit probably isn't the best way to check that out
Hi
Interesting videos.
Answers to a couple of the questions he asks in the tear down video:
The foam is there as thermal insulation. It's not for mechanical support.
The gizmo on top of the crystal is a rapid transition thermistor. The
Russians came up with them for use in OCXO's back in the 19
You can have mine.
Peter
On Jan 13, 2012, at 12:08 PM, "J. Forster" wrote:
> Can you post or send me a pic of the Teddy Bear?
>
> -John
>
> ==
>
>> Well mine arrived Monday so about 3 weeks.
>> Its the one without the useless to me oscillator.
>> But I found it quite funny.
>>
Hi
Lady Heather does not seem to like the Trimble CDMA units.
Bob
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of VK3YV
Sent: Friday, January 13, 2012 1:47 AM
To: time-nuts@febo.com
Subject: [time-nuts] Lady Heather S/W
Hi all, can an
Hi
I'd suggest lurking on the usual sites for a cheap TBolt. It will give you a
*much* better pps to compare to and you can do some amazing things with Lady
Heather.
Bob
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Tom Miller
Sent:
Hi
I think it's pretty safe to guess that none of these units got reset in the
field. What ever the end application, it just let them free run. Based on
the number or "pps missing" units, I'd also bet it used the dirty 10 MHz
output rather than the pps.
Bob
-Original Message-
From: time-
Hi
Common wisdom is that Rb's come back up pretty close to where they shut
down. Weather it takes 10 minutes or two hours to get close on the specific
Rb you have is indeed an open question.
Bob
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Be
Hi
Bert's Rb is performing better than it has any right to perform. He got
lucky.
At least that's my claim until I get a few measured here. Could be wrong...
Bob
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of J. L. Trantham
Sent: Thu
Hi
If you believe that your GPS is good to < 1x10^-11 *and* that's good enough
for what you are doing - the answer is easy. If you need 10X better than
that, indeed it gets harder, but still in range for a TBolt. If you need
100X better, then it's very difficult.
Bob
-Original Message-
Hi
Rb's are sensitive to humidity, pressure, temperature, and magnetic field.
You can probably control the temperature. With some effort you can control
the humidity. Magnetic field and pressure are a bit harder.
Bob
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts
Hi
One way of looking at that:
Back in 2003 or 2004 it left the factory exactly on frequency with a "zero"
setting. (I'm betting there's a factory calibration register in there ..).
You fire it up in seven years later and it's moved 5x10^-11. More or less
it's drifted < 1x10^-11 per year. Comes
Hi Bill,
I may be interested in the Z3801s. Are you selling them locally only,
or can you ship them? I'm in California. How much would you want for them?
Ed Breya
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Can you post or send me a pic of the Teddy Bear?
-John
==
> Well mine arrived Monday so about 3 weeks.
> Its the one without the useless to me oscillator.
> But I found it quite funny.
> It came bubble wrapped, cheap shipper mail as expected and commented in
> the
> list.
>
> But I h
I recommend we talk. I am flexible, using 24 bit A/D will blow the budget
and there is no way to do it for the cost goal.
Bert
In a message dated 1/13/2012 11:16:38 A.M. Eastern Standard Time,
albertson.ch...@gmail.com writes:
On Fri, Jan 13, 2012 at 3:19 AM, wrote:
> What we know is
On 1/13/12 8:15 AM, Chris Albertson wrote:
On Fri, Jan 13, 2012 at 3:19 AM, wrote:
What we know is that you can set the Rb in 7 E-13. Dithering would allow
even closer setting, the question is what rate will the Rb accept with out
loosing lock or deterioration of the performance. Some one shoul
On Fri, Jan 13, 2012 at 4:48 AM, wrote:
> did a preliminary layout and priced it with expressPCB and in 30 quantity
> the board would cost $ 5 !!! Any expert willing to volunteer.to do the
> loop?
> Bert Kehren
If the board uses AVR, has in-circuit programming and the ability to
do in-circuit d
To anyone in the Minneapolis area:
Collected a lot of stuff from eBay during the last decade, to keep
me busy in retirement. Turned out that need never arose. Now I can't
afford to keep an 8x8 storage locker anymore, so it must be empty
by the end of this month.
There are many rack-mount time cod
On Fri, Jan 13, 2012 at 3:19 AM, wrote:
> What we know is that you can set the Rb in 7 E-13. Dithering would allow
> even closer setting, the question is what rate will the Rb accept with out
> loosing lock or deterioration of the performance. Some one should explore
> that. I am still waiting t
Well mine arrived Monday so about 3 weeks.
Its the one without the useless to me oscillator.
But I found it quite funny.
It came bubble wrapped, cheap shipper mail as expected and commented in the
list.
But I have something far more valuable now then the oscillator.
A teddy bear and 7805 regulator
This and John Fosters response.
I haven't laughed so much in I can't remember when.
Thanks,
Joe
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Jim Lux
Sent: Friday, January 13, 2012 9:02 AM
To: Discussion of precise time and frequenc
Kind of scratching my head here.
I have a 3801, great box.
But I also have to say that since it can't run lady heather I do not see
the value epay wants. Before everything spun up as they always do the 3801
was a $200 box and slightly less. I do not know why but I purchased mine on
epay and I want
I haven't figured why yet, but I think it's something with an old post
inadvertently getting marked "unread" and since I have tbird set up for
viewing "threads with unread", it looked like it had just come in (and,
of course, who looks at the time posted?)
Maybe I'll go back to simple chronolo
When you are thinking about replacing GPS receivers, don't forget about
every police car, ambulance, fire truck and most of the tractor trailer's
in the US...The latter don't need timing down to the second, but the first
three use it to well under a minute.
One of the first things you learn when o
Any large IT organization has multiple "stratum 1" GPS based
timing receivers.
The public key for our internal routing updates is the time. No time and
the routing would break. We route ~10+ Tb/hr in the 8am-5pm business
day. That would be noticed by our users...
On one building on our campu
On 6/10/11 7:01 PM, Hal Murray wrote:
li...@rtty.us said:
There's an enormous amount of gear out there that gets timing off of GPS.
That's an interesting claim. Does anybody have any data on the usage of GPS
for timing?
I assume there is one in every cell tower and one in every 911 call cen
I am looking at using a Austron 1150 in a Tbolt has any one done it or is
there any one out there that has experience with the EFC. I want to proceed
carefully before playing with the EFC.
Also one of the 1150's says power 12-28 Volt, does any one have experience
with that.
Thanks Bert Kehr
did a preliminary layout and priced it with expressPCB and in 30 quantity
the board would cost $ 5 !!! Any expert willing to volunteer.to do the
loop?
Bert Kehren
In a message dated 1/13/2012 6:20:25 A.M. Eastern Standard Time,
ewkeh...@aol.com writes:
What we know is that you can set
The 15 volts comes from an old Toshiba laptop ps.
The 5 volts is from another switcher, similar to the famous Meanwell.
http://www.omen.com/ham/gpsd.html
The 15 volts seems fairly clean on my 2712.
My Racal-Dana 1992 does emit a signal on 10 MHz.
On 01/12/2012 03:40 AM, Javier Herrero wrote:
>
> From: Attila Kinali
> That highly depends on the specs of the PCB and the production size.
> Guestimating it's a 2.5x10cm, dual sided PCB and using PCB-pools online
> calculator, i get below 12EUR (~15AUD) per piece at a production size of
> >15.
>
For small quantities I use PCBCART (http://w
What we know is that you can set the Rb in 7 E-13. Dithering would allow
even closer setting, the question is what rate will the Rb accept with out
loosing lock or deterioration of the performance. Some one should explore
that. I am still waiting to se some aging. Taking the 10 MHz output and
Hi Attila,
yes, I'm certainly getting the boards made where production is cheap.
Other things seem to be cheap there too; like used Rb Osc!
I'm paying just under $3 per board (double sided, plated through, solder mask
both sides, silk screen both sides).
If it wasn't for that, I wouldn't be a
I bougth one, and it seems like they have replaced the firmware with the
one from 58503A. When sending *IDN to it, it responds with HP 58503A.
Thomas.
2012/1/13 Hal Murray
>
> -
>
> Does anybody know what "Z3801A has been upgraded by us, which the feature
> is
> the same as 58503A." rea
El 13/01/2012 04:57, brent evers escribió:
Hijacked thread. Yes - this would be great to see done on a linux
machine. I don't know that much about LH, but something done cross
platform (PyQt or such - could make binaries for win, linux, and mac)
in a server/client config would be great. I do
Attila Kinali wrote:
On Thu, 12 Jan 2012 00:50:35 +1300
Bruce Griffiths wrote:
Thats certainly not the case in the FS730C, the risetime isnt
appreciably affected by the small (4R7) damping resistor in series with Vcc.
Adding a series damping resistor in series with the output is
insufficie
Hi,
This is my first post to the list, but I have been a long time reader and found
it extremely interesting and informative.
I think you guys might find this interesting.. Its a video of a FE-5680A being
dissembled on Youtube.
I had noticed that within hours of the video being published 14 of
On Thu, 12 Jan 2012 00:50:35 +1300
Bruce Griffiths wrote:
> Thats certainly not the case in the FS730C, the risetime isnt
> appreciably affected by the small (4R7) damping resistor in series with Vcc.
> Adding a series damping resistor in series with the output is
> insufficient to suppress rin
On Thu, 12 Jan 2012 19:21:40 -0800
Chris Albertson wrote:
> futerlec can build 20 of the above PCBs for US$99, that's $5 each.
> plus shipping. And all 20 have to ship to the same address.
> Futurlec is an Australian company but mostly run in Thailand they have
> offices in US, AU, UK and asia.
On Fri, 13 Jan 2012 00:20:08 +
"gonzo ." wrote:
> your most welcome to the original CAD files (you can then do any mods that
> suit your purpose).
> The design was done using the free version of Eagle, so anyone can have a go.
If you could send them to me, i would very much appreciate it.
On Thu, 12 Jan 2012 18:42:57 -0500
Chase Turner wrote:
> How much cheaper would you be able to manufacture the board and send them
> along, Attila? Would it be cheaper than 15 AUD?
That highly depends on the specs of the PCB and the production size.
Guestimating it's a 2.5x10cm, dual sided PCB
albertson.ch...@gmail.com said:
> You don't need to use the audio interface to monitor frequency. Use the PPS
> interface. it will time stamp each positive slope zero crossing. So you
> get 60 log file entries per second. Sounds like a lot but not really given
> the size of modern disks.
I'v
I can't speak for all of them, but I had a NTPX26AB-06 and that worked with
the Trimble software, but not with Lady Heather.
Regards, Pete Bell
On Jan 13, 2012 1:47 PM, "VK3YV" wrote:
> Hi all, can anyone tell me whether Lady Heather S/W is compatible with the
> ex Trimble CDMA 10 Mhz reference
Just ordered power supplies for the Rb units, ebay #280439877318
$9.95, free shipping, 15v 3 A, plenty of headroom. Meant for Toshiba and
other laptops. Ought to work just fine.
Don
--
"Neither the voice of authority nor the weight of reason and argument
are as significant as experiment, for th
b...@shinji.net said:
> My question is this... What is the current market value on working and
> tested Z3801A's?
Feed Z3801A to ebay and see what you find.
I see one at $1K, and 2 with power supply and antenna and cables at $480 and
$499. (Read the fine print, YMMV...)
On the other hand
In message <4f0fc1aa.5070...@earthlink.net>, Jim Lux writes:
>On 6/9/11 1:30 PM, Javier Herrero wrote:
>> I don't think it is feasible... for a cooling reason :)
Soviet had an entire series of spy-satellits powered by reactors,
one of them is still leaking droplets/pellets of sodium from the
cool
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