PSN-L Email List Message

Subject: Re: DROP OUT OF DATA WHEN GPS CORRECTS TIME IN WINSDR
From: "JAMES ALLEN" jcallen1@...........
Date: Mon, 11 Aug 2008 20:58:15 -0700


Re: DROP OUT OF DATA WHEN GPS CORRECTS TIME IN WINSDRThanks Dave.   I =
disabled the computer automatically correcting the time in the time and =
date window of Windows Xp, but alas, no luck.  I guess I will just have =
to live with not using the GPS to set the computer clock. =20
James Allen
  ----- Original Message -----=20
  From: Dave Nelson=20
  To: psn-l@.................
  Sent: Monday, August 11, 2008 7:24 PM
  Subject: Re: DROP OUT OF DATA WHEN GPS CORRECTS TIME IN WINSDR


  Hi James,

  I had a similar problem with Vista. I had "set computer time " set to =
enable . After a period of time  (hour to days ) Winsdr  would start to =
produce errors   and then crash. There is some kind of conflict between =
the GPS derived time and the Windows operating system. My fix was to =
disable the "set computer time" function and let the Winsdr time be =
independent of the computer time and use the internet time on the =
computer. The data is tagged with the GPS time so there is no error in =
the seismic data.=20

  I have been told  by Angel that Vista does not allow  the time to be =
set by any source other than manual or internet time services .

  I admit I don't fully understand the interaction but Vista has this =
and many other frustrating idiosyncrasies.  I did  not have this problem =
with the XP home edition .

  Dave=20

    ----- Original Message -----=20
    From: JAMES ALLEN=20
    To: psn-l@.................
    Sent: Tuesday, August 12, 2008 01:12
    Subject: Re: DROP OUT OF DATA WHEN GPS CORRECTS TIME IN WINSDR


    I will try turning off Windows time service and see if that solves =
the problem.  Thanks
    James
      ----- Original Message -----=20
      From: Angel=20
      To: JAMES ALLEN=20
      Sent: Monday, August 11, 2008 5:51 PM
      Subject: Re: DROP OUT OF DATA WHEN GPS CORRECTS TIME IN WINSDR


      Tuesday, August 12, 2008, 12:23:34 AM, you wrote:




            >
           I am using Larry's A/D and amplifier (previous version) with =
an Motorola Oncore GPS connected through Larry's GPS interface board.  =
Does anyone know why or have a solution for a drop out in data when the =
GPS corrects the computer time.  I am running Windows XP professional on =
the computer.  Everything else works fine with WinSDR.

            Thanks

            James Allen
          =20




      Hi James,




      Windows has a service called "Windows Time Service" that tries to =
keep your computer time.  Maybe it is doing just that and you end up =
with packets with weird timestamps.  Just a thought.




      You can turn off this service.




      regards,




      Angel




Re: DROP OUT OF DATA WHEN GPS CORRECTS TIME IN =
WINSDR






Thanks Dave.   I disabled the = computer=20 automatically correcting the time in the time and date window of Windows = Xp, but=20 alas, no luck.  I guess I will just have to live with not using the = GPS to=20 set the computer clock. 
James Allen
----- Original Message -----
From:=20 Dave Nelson=20
To: psn-l@..............
Sent: Monday, August 11, 2008 = 7:24=20 PM
Subject: Re: DROP OUT OF DATA = WHEN GPS=20 CORRECTS TIME IN WINSDR

Hi James,
 
I had a similar problem with Vista. I = had "set=20 computer time " set to enable . After a period of time  (hour to = days )=20 Winsdr  would start to produce errors   and then crash. = There=20 is some kind of conflict between the GPS derived time and the Windows=20 operating system. My fix was to disable the "set computer time" function and let the Winsdr time be = independent of=20 the computer time and use the internet time on the computer. The data = is=20 tagged with the GPS time so there is no error in the seismic data.=20
 
I have been told  by Angel = that Vista=20 does not allow  the time to be set by any source other than = manual or=20 internet time services .
 
I admit I don't fully understand the = interaction=20 but Vista has this and many other frustrating idiosyncrasies.  I = did=20  not have this problem with the XP home edition .
 
Dave
 
----- Original Message -----
From:=20 JAMES=20 ALLEN
Sent: Tuesday, August 12, = 2008=20 01:12
Subject: Re: DROP OUT OF DATA = WHEN GPS=20 CORRECTS TIME IN WINSDR

I will try turning off Windows time = service and=20 see if that solves the problem.  Thanks
James
----- Original Message ----- =
From:=20 Angel
Sent: Monday, August 11, = 2008 5:51=20 PM
Subject: Re: DROP OUT OF = DATA WHEN=20 GPS CORRECTS TIME IN WINSDR

Tuesday, August 12, 2008, 12:23:34 AM, you wrote:


>

I am using Larry's A/D and amplifier = (previous=20 version) with an Motorola Oncore GPS connected through = Larry's GPS=20 interface board.  Does anyone know why or have a = solution for a=20 drop out in data when the GPS corrects the computer time. =  I am=20 running Windows XP professional on the computer. =  Everything=20 else works fine with WinSDR.

Thanks

James=20 Allen


Hi James,


Windows has a service called "Windows Time Service" that tries = to keep=20 your computer time.  Maybe it is doing just that and you end = up with=20 packets with weird timestamps.  Just a thought.


You can turn off this service.


regards,


Angel



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