I don't care for cut numbers other than 5NN, the standard "synch pulse"
of contest exchanges.
During the WPX last weekend with very poor conditions, those using cut
numbers hurt themselves and the stations they were working. Of all the
stations I worked who used cut numbers, at least 75% of them I needed to
ask for a repeat, if not two or more repeats. Here's why...
The number sequence 0 to 9 (should) always contain 5 'elements'. Sending
numbers in this manner provides a built-in error checking scheme. If I
am expecting a serial number and I hear two dits and one dah, I already
know this will be the number 2. When I hear the remaining two dahs, this
confirms that I just heard the number two. Likewise, if I hear a dah
dit, I already know this is the number 6, and the trailing three dits
confirms that.
Furthermore, when listening to a sequence of four numbers, I am
expecting four groups of 5-elements with appropriate spacing between the
groups. This built-in error checking can often survive moderate QRN
without having to ask for a repeat.
However, when you start throwing cut numbers into the sequence, the
entire error checking scheme goes out the window and requires a strong,
noiseless environment. This was not the band conditions I experienced
last weekend. In addition to QRN, the propagation, auroral flutter, and
back scatter was severely distorting signals at times. It was tough
enough receiving the full 5-element numbers, let alone a solo dit or dah
thrown into the middle of a serial number sequence.
Those of you who use cut numbers should be aware that I will continue to
ask for a repeat until I am 100% confident I received the correct number
for the log. I am not about to take a 3X penalty because you believe
using cut numbers has some kind of advantage.
73 de Bob - KØRC in MN
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On 5/31/2013 5:48 AM, Ktfrog007@aol.com wrote:
I agree with the comment below. I do a lot of S&P and always try to get
the serial number of the previous QSO if possible. I still have to be alert
when I am are sent a serial number because SO2Rs can jump by more than one
if an intervening QSO occurred on another band. I don't expect any
running station to slow down for me unless I ask them to.
There are stations where I can copy the call sign but not the serial number
if they are very fast and using high cut numbers. I recognize a lot of
well known calls, plus I may have worked them earlier on another band. It
seems that I get older and slower all the time and everyone else is getting
faster. After this WPX-CW I added a QRS PSE button to my N1MM. I expect
I'll be using it since most likely I'll be older yet next year.
I don't understand why some speed demons don't slow down or stop cutting
toward the end of the contest as their numbers get high and they are working
the Sunday afternoon and evening casual ops who are just on for fun and to
give out a few Qs. It's rude to blast back at these folks who are really
just helping out the high scorers. Show some gratitude and slow down, guys.
73,
Kermit, AB1J
In a message dated 5/30/2013 22:29:12 Coordinated Universal Time,
john@kk9a.com writes:
If you
call someone, they assume that you were already able to copy their
callsign and that you would be able to copy the report and recognize your
callsign at their speed. You probably already heard the report that they
gave to the station before you so you should already have some idea what
to expect.
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