[CQ-Contest] RBN high busted rate during WAE DX?

Martin , LU5DX lu5dx at lucg.com.ar
Wed Aug 12 07:35:49 EDT 2015

Hi I had a similar problem long ago regarding the first L being copied as L
hundreds of times.
Thing is, the amp was old and I needed to increase the PTT delay to solve

Hope it helps.


Martin LU5DX

On Wed, Aug 12, 2015 at 6:34 AM, Teijo Murtovaara <
teijo.murtovaara at netikka.fi> wrote:

> 11.8.2015 22:10, Pedro Colla kirjoitti:
>> Hi, I'd observed during the contest that quite often my running
>> frequency were reported as being ocuppied by me (LT7H) and by DT7H
>> who seems to be a seldom used Italian callsign, but most likely a
>> malformed capture of my callsign during the contest. It happened
>> either when I was called by scores of non-European fellows (perhaps
>> looking for an Italian multiplicator), also when I turned off the
>> "run" mode in N1MM+ and it showed outstanding the DT7H callsign in
>> the same frequency. Busted calls has always been an unavoidable
>> feature of the RBN, which is a superb infrastructure resource for
>> all of us, but the % of busted calls were relatively low and a
>> manageable issue in my experience. So, after the contest I'd used the
>> raw data info to evaluate how bad was the problem and the results
>> seems higher than I would have expected. Sunday numbers were the
>> worse, the distribution of the problem is:
> Hi Pedro,
> You better check your equipment. I noticed one time a very bad wideband
> transmission with a very bad tone sending LT7H. It was very hard to zero
> beat. No wonder that your call got busted. I guess that not so many
> people were answering you with such a bad signal. Can you see any gap in
> the log appearing at the time when you had a big number of busted spots?
> I worked you later and your transmission was then ok so it might be
> related with an arcing bad connector.
> 73 de Teijo OG6N
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