You can do a lot for $200 if you can build electronics yourself.
Decent GPS with PPS starts at under $20 on eBay. Same for surplus
10MHz oscillators. People have build usable counters for cheap
microprocessor development boards and software.But it all depends
on what you want to measure
On M
Attila,
On 04/06/2015 11:14 AM, Attila Kinali wrote:
Moin,
On Fri, 03 Apr 2015 22:51:34 -0500
Robert Watzlavick wrote:
On 04/03/2015 10:12 PM, Robert Watzlavick wrote:
I have an amateur radio license (mostly CW/HF and some VHF/UHF
experience) and I've written some driver software for an IQ
d
Hi
What kind of gear do you already have? I’d guess a computer. Can it be / is it
part of the time lab?
What sort of background do you have (is equipment repair something you do)?
How about building stuff from scratch? Do you have soldering gear etc?
What sort of budget do you have? Is $100,000
Hi Attila,
On 04/06/2015 11:21 AM, Attila Kinali wrote:
On Sat, 04 Apr 2015 08:49:01 +0200
Magnus Danielson wrote:
This is on either side of the amateur 23 cm band. That's also the first
band where you have bandwidth enough to fool around with stuff like this
without breaking the bandplan.
Hi,Years ago this forum helped me put together my first GPSDO and NTP server.
Using a then-popular INTEL ATOM board, FreeBSD w/ the NTP kernel, 1PPS input
from aTB, works great. But as the years go by, HW improves/evolves and it might
be time to recreate this functionin some other modern HW.
Lo
Adam:
It depends.
What are you trying to do?
How much accuracy is needed?
Do you mean just time, or some other metrics, too?
--- Graham
==
On Mon, Apr 6, 2015 at 11:30 AM, Adam Blakney wrote:
> I was wondering how expensive it would be to have even a small and lower
> level time lab. What ar
I was wondering how expensive it would be to have even a small and lower
level time lab. What are some less expensive models of machinery i would
need, and how much maintenance is required?
Thanks, Adam
___
time-nuts mailing list -- time-nuts@febo.com
To
Jim,
On 04/06/2015 03:13 PM, Jim Lux wrote:
On 4/6/15 2:21 AM, Attila Kinali wrote:
On Sat, 04 Apr 2015 08:49:01 +0200
Magnus Danielson wrote:
This is on either side of the amateur 23 cm band. That's also the first
band where you have bandwidth enough to fool around with stuff like this
with
On 4/6/15 2:14 AM, Attila Kinali wrote:
Moin,
On Fri, 03 Apr 2015 22:51:34 -0500
Robert Watzlavick wrote:
On 04/03/2015 10:12 PM, Robert Watzlavick wrote:
I have an amateur radio license (mostly CW/HF and some VHF/UHF
experience) and I've written some driver software for an IQ
demodulation bo
On 4/6/15 2:21 AM, Attila Kinali wrote:
On Sat, 04 Apr 2015 08:49:01 +0200
Magnus Danielson wrote:
This is on either side of the amateur 23 cm band. That's also the first
band where you have bandwidth enough to fool around with stuff like this
without breaking the bandplan.
This shouldn't be
Attila,
Thank you very much for the references. I had come across [4] when
searching on Kalman filters for GPS aiding of INS measurements. I
didn't pay much attention to the GPS chapter at the time but I'll look
at it again. I just downloaded [3] and it appears to have a good mix of
practic
Moin,
On Fri, 03 Apr 2015 22:51:34 -0500
Robert Watzlavick wrote:
> On 04/03/2015 10:12 PM, Robert Watzlavick wrote:
> > I have an amateur radio license (mostly CW/HF and some VHF/UHF
> > experience) and I've written some driver software for an IQ
> > demodulation board but I have to admit, I w
On Sat, 04 Apr 2015 08:49:01 +0200
Magnus Danielson wrote:
> This is on either side of the amateur 23 cm band. That's also the first
> band where you have bandwidth enough to fool around with stuff like this
> without breaking the bandplan.
This shouldn't be much of a problem. Using a chiping
On Wed, 1 Apr 2015 23:20:19 -0400
David McGaw wrote:
> There is evidence that the ear can discern differences in timing down to
> the uS range. See a discussion by David Blackmer of DBX and Earthworks:
>
> http://www.earthworksaudio.com/wp-content/uploads/2012/07/The-world-beyond-20kHz.pdf
I
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