[time-nuts] GPS-18, Windows, NTP & Lat Lon

[Brian Alsop]

How about a serial port spy/monitor program.  There are some free ones like:
http://www.serial-port-monitor.com/

Brian
On 9/4/2013 01:30, Bob Stewart wrote:
> One very direct way is to find some software to sniff the com port where the GPS receiver is.  I'm a Linux guy, so I can't help you on that one.
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> Bob - AE6RV
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>> ________________________________
>> From: Jim Lux <jimlux at earthlink.net>
>> To: Discussion of precise time and frequency measurement <time-nuts at febo.com>
>> Sent: Tuesday, September 3, 2013 7:35 PM
>> Subject: [time-nuts] GPS-18, Windows, NTP & Lat Lon
>>
>>
>> I'm looking for an easy way to get current lat lon, when you've got a GPS-18 hooked up for NTP.  That is, the GPS receiver is there doing it's NTP thing, so presumably it knows where it is.
>>
>>
>> If NTP is decoding the GPRMC message, it has the lat/lon in it, so how can I get that info out (in a command line utility, into a file, or some such)
>>
>> I don't need millisecond time accuracy.. For now the GPS is just to make sure that the time is "right".
>>
>>
>> The GPGGA sentence would also do.
>>
>> And, I only need the GPS position once within a 30 second interval (it's not moving, I just want to know where it is).
>>
>> It's not like ntpd or ntpq have some handy switch that says "display current lat/lon"  (which makes sense, because NTP is fundamentally time source agnostic).
>>
>> All of this with Windows 7.
>>
>> Jim



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