Hi Joe,
On 08/16/2013 04:47 AM, Joseph Gray wrote:
I just picked up a Star Box for $10. It has an Allstar DGPS board inside. I
saw several mentions of similar boards in the archives and I have found
some documentation on the net. Has anyone actually used one of these in a
GPSDO? Does it work
Hi
On Aug 16, 2013, at 8:42 PM, Bob Stewart b...@evoria.net wrote:
I thought I could just re-enter the numbers from the last survey I did. But
either something is wrong or I'm missing something (betting on the latter).
I can't seem to enable TRAIM. I thought I had it setup just like
Hi Alan,
the one I used was a Oncore UT. The message needed for the RFTG is @@Ea..
once a second if I remember correctly. Note that the RFTG doesn't talk to the
UT, it just listens, so you will need to initiate the messages somehow.
There's also some windows diagnostic software for the RFTG
Hi
If one of your sources can be offset (it's a DDS) then mixing the two is a good
way to increase the resolution. Separate the two by a couple Hz and feed them
into a double balanced mixer. Run the beat note into an amp and limiter. Output
of the limiter drives the 5335. Resolution goes up by
Hi Guido,
the one I used was a Oncore UT.
The message needed for the RFTG is @@Ea..
So if I send the bytes: @@Ea.. it will accept the 1pps pulse?
Any idea on the baud rate, 9600 N 8 1 ?
Thanks for your help
Alan
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time-nuts mailing
Hi Guido,
I found a manual here:
http://www.elgps.com/public_ftp/Documentos/SIRF_Protocol.pdf
I don't see the @@Ea.. sequence anywhere. Is it NMEA or SIRF Binary?
Any more tips before I try this?
Thanks,
Alan
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Hi Alan,
sorry for my misleading comment. What I meant was the RFTG will need @@Ea
messages coming from the UT. They contain the necessary gps data for the RFTG
to accept the pps pulse. You initiate on the UT by sending it a @@Ea request.
This has to be done for example y a PC running the
Hi Guido,
So you didn't fake the data from the UT, you only made something to ask the
UT to output it.
I see some UT units on eBay, but I don't recognize the antenna connectors.
I've got a small screw on antenna (SMA?), but the ones on eBay look like that
small round push on like I've seen
Alan,
wrong manual, the UT doesn't talk sirf as far as I remember. Although it can do
NMEA this is not what want. Try to find a manual for the motorola Oncore
receivers, the commands and messages I mentioned are specific to them.
Have fun,
Guido
Von Samsung Mobile gesendet
Alan Kamrowski II
Hi
All the UT cards that I have ever seen use the small push on antenna connector.
I have never seen one that directly takes anything normal like an SMA or a
BNC. You buy the card and then a bit of coax with the push on on one end and
(normally) an SMA on the other end.
The antenna for the
Looking at the high price (and closed software) of what is currently offered, I
have been thinking of making a kit of my GPSMonitor (see KO4BB.com)
I think I could sell an assembled and tested kit with a 2x16 char display for
$60 or so if I get 50 people interested.
Of course, the source code
$60 seems high. Yes I understand why you'd have to charge that much for a
low volume run. but an Arduino-like device costs $30 and TI sells their
MSP430 Launch Pad for $10 (shipped) and all you need to add to it is the
2x16 display and those or $6.So you could assemble something for $20.
On 8/17/2013 5:52 PM, Chris Albertson wrote:
/TI sells their MSP430 Launch Pad for $10 (shipped)/
Much better than that. TI has reduced the price of the
EK-LM4F120XL Stellaris LM4F120 LaunchPad Evaluation Board
which now costs USD 7.99 shipped...
And that board sports a Stellaris LM4F120H5QR
I agree with Chris. Though the effort in the software has to account for
something.
I have 3 of the TIs when they were on sale even cheaper $7 as I recall. But
that said. I have not had time to do anything with them. Nor half a dozen
other things.
So adding a display would be very reasonable. But
Am Samstag, den 17.08.2013, 09:56 -0500 schrieb Alan Kamrowski II:
Hi Guido,
So you didn't fake the data from the UT, you only made something to ask the
UT to output it.
That´s exactly what I did, although I used the fake approach before
that , when I didn't have a UT on hand.
I see some
Hi
Assuming that TI does it the same way as the rest of the world, the pricing is
even more crazy. They sell the stuff at cost to below cost to get people
interested in their chips. For them It's part of the marketing process rather
than a profit center. Not all the demo / evaluation stuff
Silabs sells the 8051 board described on my page for $10 and you can use my
free source code with it, unlike and arduino or a TI board for which you have
to write your own code from scratch, so if you are looking for the rock bottom
price, there is no better alternative. The LCD is $10 at
Hi Guido,
That´s exactly what I did, although I used the fake approach before that ,
when I didn't have a UT on hand.
Was that successful? If I could just output the same data stream to it once a
second with the pulse from an AVR or something that would be great. Do you
still have this
Hi Bob,
All the UT cards that I have ever seen use the small push on antenna
connector.
I have never seen one that directly takes anything normal like an SMA or
a BNC.
You buy the card and then a bit of coax with the push on on one end and
(normally) an SMA on the other end.
The antenna for
You can find complete copies of the Motorola Oncoremanuals here:
http://wa5rrn.com Click the GPS Information link, then the Oncore link.
You want Chapter 6 for the data stream descriptions, but get them all. He has
other interesting GPS related manuals, as well.
Bob - AE6RV
Alan,
yes it worked. I'll have to look through my software projects and send you the
source file.
Have fun,
Guido
Von Samsung Mobile gesendet
Alan Kamrowski II ala...@earthlink.net hat geschrieben:
Hi Guido,
That´s exactly what I did, although I used the fake approach before that ,
when I
This is a repost with a new thread. Sorry for the bandwidth.
Looking at the high price (and closed software) of what is currently offered, I
have been thinking of making a kit of my GPSMonitor (see KO4BB.com)
I think I could sell an assembled and tested kit with a 2x16 char display for
$60 or
HI
On Aug 17, 2013, at 2:38 PM, Alan Kamrowski II ala...@earthlink.net wrote:
Hi Bob,
All the UT cards that I have ever seen use the small push on antenna
connector.
I have never seen one that directly takes anything normal like an SMA or
a BNC.
You buy the card and then a bit of coax
Hi
In comparison to a 50 piece one off run, consider that most of these low end
promo boards are produced at the 5 K a month level, with heavily discounted
parts on them. Many of them are sold through distribution. Many (likely the
bulk) of them are given away on a listen to our presentation
Hi Guido,
yes it worked. I'll have to look through my software projects and send you the
source file.
That would be awesome - thank you for looking!
Alan
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf
Of Guido Küppers
Sent:
Does the iPAQ have a serial port? I have a Dell PDA that runs Pocket PC2003
with WiFi and Bluetooth but no serial port.
Didier
Robert Atkinson robert8...@yahoo.co.uk wrote:
Hi,
This is not my software. See
http://fuzzythinking.com/projects/thunderhead/
I just used the complied file, but the
I do have a desktop IPAQ. It runs Windows Embedded on ARM (at least, this one
does)
Didfier
Bob Camp li...@rtty.us wrote:
Hi
There are two products called IPAQ. One was a desktop computer, the
other was a PDA. The desktop will run anything, the PDA can handle some
of the BSD's and Linux's.
Hi Guido,
yes it worked. I'll have to look through my software projects and send you the
source file.
Please do, so far my attempt is just failing.
I'm trying to send:
//transmit gps data
txserial_putc('@');
txserial_putc('@');
checksum=0;
Magnus,
Thanks for the comments. I did find the manual online. I will have to read
through it when I get a chance. From the past comments in the archives, I
was hoping to hear about anyone's experience using this in a GPSDO and
whether it would be better than other brands.
I have set it aside
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