[wxqc] RE:How To Change Windows XP System Clock Internet Update Interval

[Rex Pirkle]

I found that Davis WeatherLink 5.6 Beta was getting out of time sync and
causing scheduling problems posting CWOP APRS data uploads. Turns out my
PC system clock is a little fast, and gains a couple of minutes per
week.

By default, Windows XP updates the System Clock once per week by polling
an Internet timeserver, so long as this option is selected:  

Start > Settings > Control Panel > Date and Time >Internet Time 
Checkbox: Automatically synchronize with an Internet time server 

I found this handy tip to change the Internet update interval frequency:


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http://www.pcsupportforums.com/archive/index.php/t-193.html

"Windows XP updates your system clock via the internet (provided you are
connected of course) every 7 days. If you want your clock updated more
often, change the interval time like this:
Press win key+R and type regedit, then press enter.
Navigate to HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services
\W32Time\TimeProviders\NtpClient
Select "SpecialPollInterval"
Change decimal value from 604800 (7 days) to whatever interval you want
in seconds. for example: 172800 (2 days) or 86400 (1 day).
Save and exit. - Alan"
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Reboot, and the "Date and Time", "Internet Time" tab should display the
new values of when the next scheduled synchronization will occur.  My
clock now stays in sync, and this solved most of my APRS upload
problems; thought I would share the information.

Rex K8CYJ-5 AR863