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[ct-user] Thanks - CT DOS Users Check your Log times for WPX

To: CT-User@contesting.com
Subject: [ct-user] Thanks - CT DOS Users Check your Log times for WPX
From: R Johnson <k1vu@tmlp.com>
Date: Wed, 04 Apr 2007 23:32:23 -0400
List-post: <mailto:ct-user@contesting.com>
Thanks To:
Ed, Jim, Bob, and ALL others on the list for the help with my EST/DST change 
over problem for CT DOS.

After being reminded about the existence of the "DOS SET TZ" variable I reset 
it in my CT batch
file to "SET TZ=EST4EDT" to correct the CT time for GMT.

On April 1st I found that CT was again off by 1 hr which I expected !!!
After resetting my CT batch file to "SET TZ=EST5EDT" corrected the problem.

Guess I'll be watching CT DOS closely in the Fall unless I have changed over to 
CT WIN by then.

I'm still not sure where CT gets its' time data from, CT, BIOS, or what.

Still working on why the "CT_TIME" utility not working, but that's for another 
subject !!!

TNX to all !!!

Bob, K1VU

At 03:37 3/28/2007, R Johnson wrote:
>At 07:36 3/27/2007, Jim Reisert AD1C wrote:
>>At 11:48 PM 3/25/2007, R Johnson wrote:
>>>After using CT DOS V10 for the CQ WPX contest I found all of my times were 
>>>off  by +1 Hour.
>>>I checked CT WIN and it was logging the correct time, just a problem with CT 
>>This is an interesting situation.
>Very interesting for the "Dark Ages" of the DOS OP System !!!
>>My understanding is that DOS gets time from the BIOS.  I doubt any BIOS or 
>>DOS have been patched with the new DST rules.
>After doing a little research, "DOS TIME" was based on GMT only, thus the need 
>to include
>the Time Variable "SET TZ= EST?EDT" (or whatever your offset is/was) !!!
>>If your computer is set to local time, you probably have a TZ variable 
>>defined somewhere:
>>  setenv TZ=EST5EDT
>Yes it was !!!
>>I'll bet that doesn't work between March 11 and April 1 (the "traditional" 
>>start of DST in the US).
>That's my guess also, I'm waiting to see how things play out !!! Obversely 
>I'll be doubly
>checking CT's time vs GMT for the next few weeks !!! 
>>My guess is that during the 3 earlier and (?) later weeks of DST, you will 
>>need to change this to:
>>  setenv TZ=EST4EDT
>I did that after I was aware of the of the problem and it fixed it !!! Used 
>EST4EDT !!!
>>Now what happens on the CQWW Phone weekend, where time traditionally changed, 
>>is anyone's guess.
>Guess I'll have to watch  for that TEST, but I usually conk out before the 
>change over !!!
>>As Bob noted, CTWIN gets its time from Windows, and it is correct (I just 
>>checked, my PC is set to
>>local time).
>Makes sense after thinking about how MICROSOFT handled time between DOS and 
>>I think you're best off setting your DOS PC to GMT and using CT with no TZ 
>Nope, I can live with it the way I used CT for almost 20 years (Old GEEZER 
>speaking) !!!
>>As to correcting existing logs, make sure you have the right "flavor" of 
>>CT_TIME, there are
>>different versions for CT9 and CT10, and for running in an MS-DOS prompt 
>>under Windows,
>>vs. running under real DOS.
>Hence the next problem to be addressed. Things don't seem to work wright with 
>I'll have to get back to you with the results of my tests !!!
>>73 - Jim AD1C
>73 Bob, K1VU
>>Jim Reisert AD1C, 7 Charlemont Court, North Chelmsford, MA 01863
>>USA +978-251-9933, <jjreisert@alum.mit.edu>, http://www.ad1c.us
>CT-User mailing list
>CT on the web:  http://www.k1ea.com/

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