[Dx4win] DX4Win/LoTW help and advice please - Again!

Thu Jul 9 07:41:28 EDT 2009

Interesting.

At a guess, the database holds all the records but must have a marker system 
to enable recognition of a real (newer)record and ignore the one it replaced 
else it would be reporting the dupe(s) to the station with whom the QSO was 
with. The replaced records are still on the system but discounted for LOTW 
purposes. Nothing is actually deleted, merely a replacement (assumed 
corrected) entry is added and noted as such, otherwise the whole mechanisim 
would never work.

Thats what I make of it anyway?

Doug - MM0BJA

----- Original Message ----- 
From: "Pete Smith" <pete.n4zr at gmail.com>
To: "Larry Gauthier (K8UT)" <k8ut at arrl.net>
Cc: <dx4win at mailman.qth.net>
Sent: Thursday, July 09, 2009 10:26 AM
Subject: Re: [Dx4win] DX4Win/LoTW help and advice please - Again!

> I'm confused. Here is a section from a relatively recent activity report
> from LOTW in which I inadvertently overlapped with a previous upload.
> LOTW appears to be reporting a replacement, not an additional duplicate
> record.
>
> 2008-11-20 21:27:29 LOTW_QSO:  QSO record QSLs a contact
> 2008-11-20 21:27:29 LOTW_QSO:     QSO: N4ZR N6HC 2008-01-12 21:53:20Z 20M 
> CW
> 2008-11-20 21:27:30 LOTW_QSO:  [Additional QSL notices suppressed]
> 2008-11-20 21:30:29 LOTW_QSO:  WARNING: QSO replaces existing record
> 2008-11-20 21:30:29 LOTW_QSO:     QSO: N4ZR ZC4LI 2008-03-15 12:08:28Z 20M 
> CW
> 2008-11-20 21:30:32 LOTW_QSO:  WARNING: QSO replaces existing record
> 2008-11-20 21:30:32 LOTW_QSO:     QSO: N4ZR EU1PA 2008-03-15 12:08:55Z 20M 
> CW
> 2008-11-20 21:30:32 LOTW_QSO:  WARNING: QSO replaces existing record
> ...
>
> But at the end of the report, it says:
>
> "1919 records were duplicates"
>
> But my DX4WIN says 102966 QSOs, and LOTW says 106,867 records, which would 
> seem to suggest that Larry is correct, and I have overlapped at least once 
> before.  But then why say "replaces existing record"?
>
> 73, Pete
>
> On 7/9/2009 5:49 AM, Larry Gauthier (K8UT) wrote:
>> Andy,
>>
>>
>>> Can I go back and delete the last upload and repeat it?
>>>
>> Aha... you have just uncovered an intentional design feature of LoTW:
>> uploaded records cannot be deleted. Even if you upload the EXACT SAME QSO
>> records a second time, LoTW adds new records and your QSO count 
>> discrepancy
>> between DX4Win and LoTW will increase.
>>
>>
>>> I could reset the upload flags and upload the whole log but would that
>>> help?
>>>
>> No. Your LoTW QSO record count will double and your problem will remain.
>>
>>
>>> There is obviously a discrepancy somewhere...
>>>
>> My uneducated guess is that when you  "also added some very old QSOs" to
>> LoTW they were already there - part of an earlier upload that you forgot
>> about? You now have 10 duplicate records. Or {as I have done} when I
>> discover an error with an already-uploaded QSO in DX4Win, I correct the
>> error and re-upload the QSO. In that case, the old wrong QSO is still 
>> there
>> along with the new corrected QSO. [Aha... another intentional design 
>> feature
>> of LoTW: uploaded records cannot be edited.]
>>
>> You have a QSO-count discrepancy that will not go away, and your best
>> approach is to be diligent in tracking future uploads so that you don't
>> increase the gap. Some users upload their entire log EVERY TIME they 
>> upload
>> {imagine their discrepancy!} which is why you may get more than one
>> notification of a QSO match. You get notified (a downloaded QSO ADIF
>> record)every time that person re-uploads a QSO that matches with yours.
>>
>> There are lots of good architectural reasons why LoTW prohibits record
>> deletions, so rather than argue with ARRL's design team it's best to just
>> understand how LoTW works and "get over it." ;-) The reality is that LoTW 
>> is
>> not really a "logbook", but more closely resembles "eHarmony.com for 
>> QSOs."
>> Some QSOs find more than one match {kinda reminds me of some politicians 
>> in
>> the News lately!} while others are a 1:1 relationship.
>>
>> -larry
>> K8UT
>> ----- Original Message -----
>> From: "Andy Hewitt"<andyphewitt at btopenworld.com>
>> To:<dx4win at mailman.qth.net>
>> Sent: Thursday, July 09, 2009 03:15
>> Subject: [Dx4win] DX4Win/LoTW help and advice please - Again!
>>
>>
>>
>>> I have just uploaded 24 recent 6m QSOs to LoTW but have a glitch. The
>>> actual upload was for 27 QSOs as I also added some very old QSOs into my
>>> log
>>> for some QSL cards that I found for some contacts back in the 1980s. 
>>> When
>>> the QSOs were uploaded every thing seemed OK but I noticed that my total
>>> log
>>> QSOs in DX4Win is 15455 but LoTW shows 15466. Until this upload my log 
>>> and
>>> LoTW concurred. It was not rejected nor was a discrepancy high lighted
>>> until
>>> I tried to download the report. When I did this I got a window in DX4Win
>>> saying "Upload aborted duplicate QSO A7/M0GFA". I have looked at the
>>> activity report and it says "no discrepancy found" and also says that
>>> amongst others it found a QSL for A7/M0FGA.
>>>
>>>
>>>
>>> There is obviously a discrepancy somewhere but I cannot find it. Can I 
>>> go
>>> back and delete the last up load and repeat it? Would that solve the
>>> problem? I could reset the upload flags and upload the whole log but 
>>> would
>>> that help? There are some really good QSLs in addition to the A7 that I
>>> would like to get correctly into DX4Win.
>>>
>>>
>>>
>>> Thank you for any help and suggestions.
>>>
>>> 73
>>>
>>> Andy G3SVD
>>>
>>>
>>>
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>>
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>
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