Hi all,
Some of you know from my prior threads that I've been debating what GPS
to buy to upgrade from my USB based BU-353. I think I've just about
nailed it down, based on a number of conflicting factors.
I'm getting + / - 6 ms accuracy now with the BU-353. My goals for the
new device are
Hi all,
[]
From my reading, it appears that I need to add the following to the Sure
Electronics package of parts:
1) DB-9 Male - DB-9 Female serial cable
Correct. I got mine from Amazon. Search for "2m 9 Pin Serial / RS-232
Extension Cable M-F".
2) Motherboard header - DB-9 port adapte
On 2012-03-04, Ron Frazier (NTP) wrote:
> Hi all,
>
> Some of you know from my prior threads that I've been debating what GPS
> to buy to upgrade from my USB based BU-353. I think I've just about
> nailed it down, based on a number of conflicting factors.
>
> I'm getting + / - 6 ms accuracy now
On 2012-03-04, David J Taylor wrote:
>> Hi all,
> []
>> From my reading, it appears that I need to add the following to the Sure
>> Electronics package of parts:
>>
>> 1) DB-9 Male - DB-9 Female serial cable
>
> Correct. I got mine from Amazon. Search for "2m 9 Pin Serial / RS-232
> Extension
Thanks for the info. Comments inline.
On 3/4/2012 1:51 PM, David J Taylor wrote:
Hi all,
[]
From my reading, it appears that I need to add the following to the
Sure Electronics package of parts:
1) DB-9 Male - DB-9 Female serial cable
Correct. I got mine from Amazon. Search for "2m 9 Pi
On 3/4/2012 3:18 PM, unruh wrote:
On 2012-03-04, Ron Frazier (NTP) wrote:
Hi all,
Some of you know from my prior threads that I've been debating what GPS
to buy to upgrade from my USB based BU-353. I think I've just about
nailed it down, based on a number of conflicting factors.
I'm gett
Ron Frazier (NTP) wrote:
Hi all,
Some of you know from my prior threads that I've been debating what GPS
to buy to upgrade from my USB based BU-353. I think I've just about
nailed it down, based on a number of conflicting factors.
I'm getting + / - 6 ms accuracy now with the BU-353. My goa
On Sun, 04 Mar 2012 22:37:35 +, Ron Frazier (NTP) wrote:
> I
> want to see what the max performance I can get with USB with handshaking
> is possible. I think I can break the + / - 1 ms barrier.
See http://gpsd.berlios.de/faq.html#time
___
que
Ron Frazier (NTP) wrote:
..
I may try pulling the signal directly from the PPS directly to DCD as
you describe. If it works, the procedure might be a bit simpler. By
the way, are the data lines on the serial port of the Sure board running
at standard RS-232 levels?
The TxD and RxD d
On Mon, Mar 5, 2012 at 01:26, David Lord wrote:
> You need to use PPS to get lower offsets. I've no idea if
> PPS will work via a serial to usb adapter but I'd guess
> that it will and you will get an improvement.
In general, it won't. The problem is the PPSAPI DCD timestamping
needs to be part
On 3/4/2012 6:10 PM, Bruce Lilly wrote:
On Sun, 04 Mar 2012 22:37:35 +, Ron Frazier (NTP) wrote:
I
want to see what the max performance I can get with USB with handshaking
is possible. I think I can break the + / - 1 ms barrier.
See http://gpsd.berlios.de/faq.html#time
"unruh" wrote in message
news:jaQ4r.26824$vr6.8...@newsfe14.iad...
[]
Again, almost no serial ports need this. They work fine off TTL level.
While it is true that the standards say -5 to 5 V almost all accept
0-5V. Now you can try it, and if it does not work, then go for the two
wire solution.
"Ron Frazier (NTP)" wrote in message
news:4f53eeaf.9050...@c3energy.com...
[]
Interesting that you used a metal box. I guess it doesn't matter since
the antenna is external. I think a clear lid might be cool to see the
lights.
The blue LED is so bright you will want to hide it! A metal
Once upon a time, Ron Frazier (NTP) said:
>2) Motherboard header - DB-9 port adapter
Note that there are two different pinouts common for this. IIRC they
all have the same mapping of motherboard header pin number to serial
port pin number, but one numbers the header pins in rows and the other
in
On 3/5/2012 9:45 AM, Chris Adams wrote:
Once upon a time, Ron Frazier (NTP) said:
2) Motherboard header - DB-9 port adapter
Note that there are two different pinouts common for this. IIRC they
all have the same mapping of motherboard header pin number to serial
port pin number, but
On 3/4/2012 5:51 PM, David Lord wrote:
Ron Frazier (NTP) wrote:
Hi all,
Some of you know from my prior threads that I've been debating what
GPS to buy to upgrade from my USB based BU-353. I think I've just
about nailed it down, based on a number of conflicting factors.
I'm getting + / - 6
Ron Frazier (NTP) wrote:
On 3/4/2012 5:51 PM, David Lord wrote:
Ron Frazier (NTP) wrote:
Hi all,
Some of you know from my prior threads that I've been debating what
GPS to buy to upgrade from my USB based BU-353. I think I've just
about nailed it down, based on a number of conflicting facto
Ron Frazier (NTP) wrote:
On 3/5/2012 9:45 AM, Chris Adams wrote:
Once upon a time, Ron Frazier (NTP)
said:
2) Motherboard header - DB-9 port adapter
Note that there are two different pinouts common for this. IIRC they
all have the same mapping of motherboard header pin number to ser
On Sun, Mar 4, 2012 at 8:30 AM, Ron Frazier (NTP)
wrote:
> C) Get the unit working with NMEA data from the RS-232 port, going to a real
> serial port. I have to tinker with the motherboard on another computer to
> do that.
You can buy a serial port adaptor card are that fits in a PCI slot.
But
On 3/5/2012 12:30 PM, Chris Albertson wrote:
On Sun, Mar 4, 2012 at 8:30 AM, Ron Frazier (NTP)
wrote:
C) Get the unit working with NMEA data from the RS-232 port, going to a real
serial port. I have to tinker with the motherboard on another computer to
do that.
You can buy a seria
On 3/5/2012 11:52 AM, David Lord wrote:
Ron Frazier (NTP) wrote:
On 3/5/2012 9:45 AM, Chris Adams wrote:
Once upon a time, Ron Frazier
(NTP) said:
2) Motherboard header - DB-9 port adapter
Note that there are two different pinouts common for this. IIRC they
all have the same mapping of moth
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