[time-nuts] My Garmin 18x, Ver 3.50, currently 1 second slow to UTC

David J Taylor david-taylor at blueyonder.co.uk
Wed Dec 29 04:38:35 EST 2010


From: "Hal Murray"
Sent: Wednesday, December 29, 2010 9:16 AM
To: "Discussion of precise time and frequency measurement" 
<time-nuts at febo.com>
Subject: Re: [time-nuts] My Garmin 18x, Ver 3.50, currently 1 second slow 
to  UTC

> This page has comments for 3.20 and 3.50:
>  http://www8.garmin.com/support/download_details.jsp?id=4055
> (But it's all in a Windows unpacker and I don't do windows.)

The only extra information when unpacked refers to the new position 
averaging:

____________________________________
A GPS 18x user can now enable or disable internal position averaging via 
the PGRMC1 input NMEA sentence.

Position averaging can be enabled by transmitting the following command 
string the to GPS18x using a terminal program:

	$PGRMC1,*,*,2,*,*,*,*,*,*,*,*,*,*,*<CR><LF>
	Note: * indicates any appropriate numerical value as indicated by 18x 
documentation.

Position averaging can be disabled by transmitting the following command 
string the to GPS18x using a terminal program:

	$PGRMC1,*,*,1,*,*,*,*,*,*,*,*,*,*,*<CR><LF>
	Note: * indicates any appropriate numerical value as indicated by 18x 
documentation.
____________________________________


Cheers,
David
-- 
SatSignal software - quality software written to your requirements
Web:  http://www.satsignal.eu
Email:  david-taylor at blueyonder.co.uk 





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