I am not sure I am using a type four since i use
ascii text file type of psn and not the
binary form. But I will look closer and possibly
modify my data to match the type 4 profile.

If you save your data as text then open it in notepad
you will something more like type 2!.



----- Original Message ----- 
From: "Robert McClure" 
To: 
Sent: Sunday, February 15, 2009 6:52 PM
Subject: Re: WINQUAKE ( FIRST SAMPLE TIME)


>  The specification for the PSN Type 4 file format is found at:
> 
> http://www.seismicnet.com/psnformat4.html
> 
>  Note that the DateTime data structure allows the time of the first sample
> to be entered to the nearest nanosecond. You will have to consult Larry
> Cochran about whether time from SDR is entered to that precision. My source
> data comes from Dataq WDQ files, which record starting time only to the
> second.
> 
> Bob McClure
> 
> On Sun, Feb 15, 2009 at 1:15 AM, Bob Hancock  wrote:
> 
>> Geoff -
>>
>> The recording of event data is done through WinSDR, not WinQuake.  In the
>> replay mode of WinSDR, you can only set the time with one minute accuracy.
>>  Once you have recorded an event through WinSDR, you can edit or crop the
>> file with WinQuake, with a one second accuracy.  When viewing a file through
>> WinQuake, you can look at timing that is accurate to 0.001 seconds, but I am
>> unaware of anyway to save the data with that accuracy.
>>
>> There are other programs out there, but I am not familiar with them and
>> cannot comment on their accuracy.
>>
>> Bob Hancock
>>
>>
>>
>>
>> On Feb 14, 2009, at 6:22 PM, GMV wrote:
>>
>> *Howdy you Winquake Experts;*
>> **
>> *how in heck does one get winquake to recognize*
>> *the exact time for the very first sample ?*
>> **
>>
>>
>
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