The new Garmin Etrex series has GPS and Glonass. /Björn
> Hello,
>
> Wednesday, October 19, 2011, 1:21:31, Tom Van Baak wrote:
>
> T> So the antenna and receiver architecture is more complicated. Have you
> seen any
> T> portable car navigation or cell phones with GLONASS?
>
> Smartphone with bot
Tom,
Very good post, it will be a good reference point.
> ** Carrier Phase -- also a large gain in performance. There
> are dozens of papers in the last decade that show graphs
> of code vs. carrier performance. Note all the cheap GPS
> receivers we use, like the Z3801 and TBolt are code only.
>
Hello,
Wednesday, October 19, 2011, 1:21:31, Tom Van Baak wrote:
T> So the antenna and receiver architecture is more complicated. Have you seen
any
T> portable car navigation or cell phones with GLONASS?
Smartphone with both nav systems (sorry, Russian page only):
http://www.shop.mts.ru/phones
I used that post processing to get a very precise positionning of my
antenna, ie down to 1 cm or better, which greatly improve the stability
of the GPS data.
Regards,
Jean-Louis
Le 19/10/2011 00:13, Jim Lux a écrit :
GIPSY is offered to all comers, for free. All you need is the ability
to g
On 10/18/11 3:32 PM, Tom Van Baak wrote:
** Choke ring, ground plane -- this has been covered before.
Along with temperature stabilized antenna, cables, and/or
receiver, it's an inexpensive way to gain some performance.
I don't have numbers but it seems at the point people use
dual-frequency and
Warren,
I have a couple of suggestions for you; in another posting.
/tvb
OK, now on the subject of how to measure the long-term
performance of a GPSDO, even a Rb-based GPSDO.
As you know one of the symptoms of this hobby is that you
search for ever greater stability. That's because to know fo
Yes, there is a GLONASS navigator: the EXPLAY GN510, ePay item 150659387614.
On Tue, Oct 18, 2011 at 11:33 PM, David VanHorn <
d.vanh...@elec-solutions.com> wrote:
> > So GLONASS is cool, even if they do land more of them in the ocean than
> in space ;-)
>
> They are just getting their "Low geosy
> So GLONASS is cool, even if they do land more of them in the ocean than in
> space ;-)
They are just getting their "Low geosync" constellation in place.
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Hi Paul thanks for that reassuring comment. I and an amateur software team
have very nearly gone bald trying to rationalise a perfect response on a
real internal PCI serial card and a USBconveter. We found with thee cheaper
converters it is vital to visit the makers site and get the very latest
dri
So where do I get a cheap, used Russian GPSDO?
I have not seen any on EBay
Can I trade them my Tbolt? :)
per:
http://tycho.usno.navy.mil/ptti/1998/Vol%2030_18.pdf
Note that's a rather old 1998 paper and a lot has changed
since then. Not the least of which is GPS S/A going away
back in 2000. In
Actually no, it doesn't have to be the software. In my day job, I work for a
company that makes terminal servers (networked serial concentrators) and have
seen many times where USB/serial converters do not behave properly. I would bet
that choosing a different USB/serial dongle would fix the pro
Maybe better to ask, what is the commercial price of a T-Bolt and
compare to that. We have been Extremely lucky only due to the upgrades
of the global cell phone system, If it was not for that I wonder what
the situation would be
On Mon, Oct 17, 2011 at 8:53 AM, WarrenS wrote:
>
> So where do I g
On 19/10/2011 00:09, John Miles wrote:
[snip]
The beta version of TimeLab can do that (
http://www.miles.io/timelab/readme.htm ). Set your counter to talk-only
mode, and use "Acquire->Acquire from GPIB Counter in Talk-Only mode."
There's some online help in the acquisition dialog, but beyond th
Are there specs for any of the Russian GPSDO's
With phase resolution around 1000 times better than a Tbolt, they should be
capable of some impressive performance.
ws
***
I see that Meinberg have just announced a GPS/Glonass LanTime unit. It can
work either one or the other sou
I see that Meinberg have just announced a GPS/Glonass LanTime unit. It can
work either one or the other source or a combined mode. Would like to get my
hands on one.
Rob Kimberley
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Said Jac
I'm doing some experiments in hopes of using the TBolt-Tic in a common view
configuration to lower the short term noise.
That is, instead of comparing a local externally connected Tbolt Osc to the
GPS, I want to compare it remotely to one of say Tom's supper H-masers or Cs
references.
The singl
The short version: it's now OK!
The long version: I dug out the old terminal, found it had no mains plug,
added that, and noted it was video out. Dug out an old TV, found the
remote control had corroded batteries (how often have I warned people
about that!) had to dig those out and find a cou
Thank you - I've downloaded it and it looks very interesting - I guess
I need to dig out my RS232-RS422 converter and have a play.
Regards,
Pete
On Tue, Oct 18, 2011 at 7:35 AM, k4...@aol.com wrote:
> All that's interested, KO4BB now has my RFTGm information on his manuals
> section under GPS
Yes, uBlox is GLONASS-ready but no units actually available.
On 10/18/11, Yuri Ostry wrote:
> Hello,
>
> Tuesday, October 18, 2011, 12:01:46, Attila Kinali wrote:
>
> A> On Mon, 17 Oct 2011 08:53:51 -0700
> A> "WarrenS" wrote:
>
>>> So where do I get a cheap, used Russian GPSDO?
>>> I have not s
I forgot to say that it is free, of course.
On 10/18/11, Azelio Boriani wrote:
> Command line? For the windows command prompt? I can write one for you...
>
> On 10/18/11, Tim Tuck wrote:
>> Hi all,
>>
>> Does anyone know of a simple program to capture the frequency data from
>> a HP 5316B over a
Command line? For the windows command prompt? I can write one for you...
On 10/18/11, Tim Tuck wrote:
> Hi all,
>
> Does anyone know of a simple program to capture the frequency data from
> a HP 5316B over a time period via GPIB ?
>
> I'd like to do some tests on some oscillators I have vs temper
Hi all,
Does anyone know of a simple program to capture the frequency data from
a HP 5316B over a time period via GPIB ?
I'd like to do some tests on some oscillators I have vs temperature.
thanks
Tim
--
VK2XTT :: QF56if :: BMARC :: WIA :: AMSAT-VK :: AMSAT
__
Hello,
Tuesday, October 18, 2011, 12:01:46, Attila Kinali wrote:
A> On Mon, 17 Oct 2011 08:53:51 -0700
A> "WarrenS" wrote:
>> So where do I get a cheap, used Russian GPSDO?
>> I have not seen any on EBay
>> Can I trade them my Tbolt? :)
A> uBlox offers GLONASS ready modules for a few months.
On Mon, 17 Oct 2011 08:53:51 -0700
"WarrenS" wrote:
> So where do I get a cheap, used Russian GPSDO?
> I have not seen any on EBay
> Can I trade them my Tbolt? :)
uBlox offers GLONASS ready modules for a few months.
You could take one of the many GPSDOs that use uBlox
modules (e.g. the ones fro
You might collect a pile of errors and analyze the bit level changes.
Yes, I could do that, were it critical.
I think some of your errors were / changing to a ?. That's hex 2F
changing
to 3F, or picking the 10 bit. How many of the other errors did the same
thing?
I think serial ports are l
> So, remarkable as it is, it seems that either the serial chip is bad, or
> bad data is being sent to the chip.
You might collect a pile of errors and analyze the bit level changes.
I think some of your errors were / changing to a ?. That's hex 2F changing
to 3F, or picking the 10 bit. How
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