PSN-L Email List Message

Subject: Re: Time correction program
From: "Larry Cochrane" cochrane@..............
Date: Sun, 13 Jan 2002 01:06:03 -0800

There's also a free port of NTP (Network Time Protocol) for NT and Win2k.
Not sure if it will work under the other Windows OSs. See this page for download links.

Recently I have been using it to test a new feature in WinSDR. This feature
allows my new Serial Output A/D board (or the DOS program SDRServr.exe) to
use the computer it is sending data too as a time reference source. I can
check the accuracy of NTP running on my Win2K system  (933Mhz PIII system
with 256K of memory) and GPS time with an oscilloscope. One channel of the
o-scope is connected to the 1 PPS output of the GPS receiver and the other
channel of the o-scope is connected up to the 1 PPS output of the A/D board
(pin 12 on the serial A/D board and pin 18 on the ISA A/D board).

I was very pleased with the results of my testing. NTP was able to keep my
A/D board time accurate to within +-10 milliseconds. Too get this type of
accuracy you need a high speed connection to the Internet and you need to
find a NTP server near you.

-Larry Cochrane
Redwood City, PSN

----- Original Message -----
From: "angel@chiriqui" 
To: "Dewayne Hill" 
Sent: Saturday, January 12, 2002 5:04 PM
Subject: Re: Time correction program

> Hello Dewayne,
> There are several of these that are free and very good, check out
> Dimension 4 and if you really want accuracy check out Rightime.
> angel
> Saturday, January 12, 2002, 6:50:47 PM, you wrote:
> DH> I just found a program that will keep the clock in your PC set to the
correct time.
> DH> This is a 30 day evaluation program with a $10 registration fee.
> DH>
> --
> Best regards,
>  angel                            mailto:angel@............
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