abenoit at tucker.com
Wed Mar 1 09:51:21 EST 1995
I will be leaving for Asia on Saturday. My travels will take me to Bangkok
on March 12 where I plan on operating as HS0/WQ5W from the club station
there-CW is my preferred mode. I will be back in Bangkok the weekend of
March 24-26 and plan on operating as part of the M/S team in the CQWPX SSB
contest. I haven't heard what the call will be yet.
>From jholly at hposl62.cup.hp.com (Jim Hollenback) Wed Mar 1 16:57:23 1995
From: jholly at hposl62.cup.hp.com (Jim Hollenback) (Jim Hollenback)
Date: Wed, 1 Mar 1995 08:57:23 -0800
Subject: Clearing the Frequency
References: <9503011056.aa14057 at COR5.PICA.ARMY.MIL>
Message-ID: <9503010857.ZM14987 at hpwsmjh1.cup.hp.com>
On Mar 1, 10:56am, Waltk at PICA.ARMY.MIL wrote:
> Subject: Clearing the Frequency
> During the ARRL DX CW contest I had an interesting experience
> with a certain multi station from The Slovak Republic, which I
> won't name. I set up camp abt 1 khZ from him and could exist
> quite comfortably and maintain a nice rate. But, he couldn't.
> So, guess what he did? He started sending MCW, that is he threw
> the rig into SSB and modulated it with a tone of some sort.
> Well, that generated sidebands that were audible plus or minus
> one to two kHZ from his center frequecny. This was not my imagination,
> nor some defect with my RX. He would alternate from pure CW to
> MCW depending on what I was doing to his rate.
> Has anyone else confronted such frequency clearing tactics?
Tactics similar to these are used in SSB contests. Generally employed
by Multi-Tower, Muti-Beam, Mult-Operator and High Powered stations. They
increase the processor level to were there is considerable flat-topping
of the audio signal and the coresponding wide transmitted signal. They can
effectively clear a swath of frequency 5-8 kHz wide and make everyone
within 15 kHz wish they had something else to do that weekend.
The technique you mention is very interesting. I'll have to keep it
in mind for the frequency wars in November.
73, Jim, WA6SDM
jholly at cup.hp.com
>From H. Ward Silver" <hwardsil at seattleu.edu Wed Mar 1 16:52:10 1995
From: H. Ward Silver" <hwardsil at seattleu.edu (H. Ward Silver)
Date: Wed, 1 Mar 1995 08:52:10 -0800 (PST)
Subject: Numeric abbreviations
Message-ID: <Pine.3.07.9503010809.C27301-b100000 at bach.seattleu.edu>
> At 40 wpm there are roughly 15 dits per second. If a carribean op makes
> 4800 QSOs in a contest, then there is a difference of 19200 transmitted
> dits between the ENN and 5NN exchanges (assuming no repeats). Thus, the 5NN
> exchange transmissions are 21+ minutes longer than sending ENN over the
> course of the contest. This equates to 35 QSOs for a rate of 100/hour.
> Slower sending speeds or higher rates increase the difference.
However...if you confuse just ONE guy by excessively abbreviating numbers,
and he asks for repeats, it will waste the "saved time" for AT LEAST 50
QSOs, destroys the pileup rhythm, and gets the DX op's mind out of the
groove. Figure that the confusee's call will probably be a 2-by-3, will
be sent slower, and may take more than one repeat by the DX op to get it
all straightened out.
Penny-wise and pound-foolish to trade those four dots against the probable
disruption, in my opinion. Better to keep order and keep everyone
informed and on the beam.
73, Ward N0AX
>From Joel Magid <76450.2313 at compuserve.com> Wed Mar 1 17:02:26 1995
From: Joel Magid <76450.2313 at compuserve.com> (Joel Magid)
Date: 01 Mar 95 12:02:26 EST
Subject: GX0AAA in CQ WW CW
Message-ID: <950301170225_76450.2313_CHL28-1 at CompuServe.COM>
Anyone have the QTH of this station AND a route for it
More information about the CQ-Contest