Sounds like I need to do some experiments.
Thanks for the advice and idea, Bruce. :)
Ed
On 8/22/2013 12:15 AM, Bruce Griffiths wrote:
That will work to some extent however you need to tailor the stage
gain and bandwidth distribution to suit for optimum performance.
Its somewhat difficult to co
It's simple, just install and run "NTP"
http://www.ntp.org/downloads.html
On Wed, Aug 21, 2013 at 9:02 PM, Rex Moncur wrote:
> I am trying to lock a Windows XP computer to GPS time taking advantage of
> both the NEMA sentence and the 1PPS with the hope of getting to within a
> few
> ms.
>
> I a
I am trying to lock a Windows XP computer to GPS time taking advantage of
both the NEMA sentence and the 1PPS with the hope of getting to within a few
ms.
I am using a Garmin GPS 18PC and the NMEATime program. When I tick the box
to implement the 1PPS feature on NMEATime the program locks up eac
That will work to some extent however you need to tailor the stage gain
and bandwidth distribution to suit for optimum performance.
Its somewhat difficult to control the gain and bandwidth of an off the
shelf CMOS inverter and you also need to know its noise parameters.
Maybe adding resistors in
I am trying to lock a Windows XP computer to GPS time taking advantage of
both the NEMA sentence and the 1PPS with the hope of getting to within a few
ms.
I am using a Garmin GPS 18PC and the NMEATime program. When I tick the box
to implement the 1PPS feature on NMEATime the program locks up each
What GPIB adapter are you using? Does the 'Monitor' feature also time out,
or just the acquisition itself?
-- john, KE5FX
Miles Design LLC
> -Original Message-
> From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
> Behalf Of Adrian
> Sent: Wednesday, August 21, 2013
Maybe the 15 second offset was to compensate for the old Android bug that
derived time from GPS rather than UTC ; Sprint told me at that time they
drove most towers with Stratum 2 ref. and only my Android phones exhibited
the issue. The other ones were no more than 0.1 sec off.
On Wed, Aug 21, 20
On 8/21/2013 5:52 PM, Magnus Danielson wrote:
On 08/21/2013 03:51 AM, Ed Palmer wrote:
Adrian,
I used Timelab to assess the reaction of the DTS-2077 to different
sine wave inputs. The differences in the noise floor are surprising.
The attached picture was made by taking the output of an HP 864
On 08/21/2013 06:46 AM, Ed Palmer wrote:
> Does anyone know if this situation would benefit from doing something
> similar to a 'Collins Hard Limiter' i.e. instead of squaring the
> signal in one stage, use maybe two or three cascaded stages with
> increasing bandwidths? Normally, Collins limiters
On 08/21/2013 03:51 AM, Ed Palmer wrote:
> Adrian,
>
> I used Timelab to assess the reaction of the DTS-2077 to different
> sine wave inputs. The differences in the noise floor are surprising.
> The attached picture was made by taking the output of an HP 8647A
> Synthesized Generator through a sp
Here's a general question about the NITZ timestamp that is sent by the
phone tower when your mobile connects to it. Why are they so far off from
the actual time? I have seen offsets up to 15 seconds behind, mind you this
was from a tower in the bush, city towers are usually only 2 secs behind.
Tom
Since you're looking for rise times in the low or sub nanosecond range,
why wouldn't you include any logic gates where such rise times are
inherent? I was thinking of maybe a chain of faster and faster logic
gates. For example, Potato Semiconductor - no, I'm not making that up -
PO74G04A has
This seems to impact some, but not all, XL-DC units.
At least one of mine was impacted, some of the others were not. I think
it depends on firmware version.
If you check and set the f68 "Set Year" option this will probably let
you get things back to displaying the correct date.
At least it
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
It looks like it affects truetime XL-DC's I just noticed it at my
house as well :(
On 8/11/13 07:09:40, Magnus Danielson wrote:
> If Furuno can supply the FW to update with, we would be more than
> happy.
>
> A slight alteration of the code would suf
Hi Luca
There are other items of HP equipment fitted with Ref Out and Ref In
terminals joined by an external link, with the intention that the link is
removed to connect an external standard to the Ref In terminal, but in a
"normal"
5345A the external reference is used to phase lock the i
Hi,
Anyone have top and bottom covers from a junked HP 5061A or B (also
5065A)???
I have LOTS of 5061 parts for a swap or can pay a reasonable amount.
Thanks!
Corby Dawson
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To be more precise, I have a working DTS-2077 and tried it a few times
with TimeLab.
TimeLab was always running fine for a few seconds but then it stopped
and displayed a timeout error.
So, what's wrong?
Adrian
Adrian schrieb:
Ed,
thanks for posting!
I'm still looking for a MUX board for my
Dear all,
I have bought an HP 5345A. It’s ok and I’m very glad. On the rear
panel it is wrote "OPTION C19" (a little bit strange!) and there are
two additional BNC installed on the little panel normally used to
place the HPIB connector when present.
These 2 BNCs are named REF OUT and REF IN
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