There is some terminology confusion.
Dueling CQ's has been built into most contesting software for many
years. You send a CQ on one band. When the CQ finishes, a CQ is
automatically started on another band. If someone answers you on the
first band, the CQ on the other band is automatically terminated, and
you complete the usual QSO sequence on the first band. If no one
answers, the software automatically bip-bops CQ's between the 2 bands
until someone answers on either band, or you change strategy.
What ZF2MJ, OH0V, V47T, and others have advanced is running simultaneous
pileups on two bands, with 2 QSO's in progress at the same time, but
never transmitting on the two bands at the same time. This is quite
different from the dueling CQ's which many contesters have used for years.
I propose using the term "simultaneous pileups", not "dueling CQ's", to
describe what ZF2MJ, et.al., have done.
73,
Steve, N2IC
On 12/06/2015 02:04 PM, ve4xt@mymts.net wrote:
Duelling CQs seems to be a surprise only to those who haven't been paying
attention. It's always been part of my lexicon that duelling CQs are just a
part of SO2R.
73, kelly, ve4xt
Sent from my iPhone
On Dec 6, 2015, at 11:54, "Stephen Bloom" <sbloom@acsalaska.net> wrote:
Interesting ...
I did this for NAQP and SSCW without even thinking of it as anything other than
efficient SO2R (not that it mattered ....I was operating from VE7 and no
technique short of remote xcvrs from another part of the country was going to
make me competive with propagation of the time.) Having said that, I can't
even fathom handling the audio streams the way N6MJ does. I'm still recovering
from the pileups at 9H6A.
73
Steve KL7SB
p.s. Joined the group recently ..with Rich passing ..thought another KL7
should be here.
-----Original Message-----
From: CQ-Contest [mailto:cq-contest-bounces@contesting.com] On Behalf Of Björn
SM0MDG
Sent: Sunday, December 06, 2015 1:46 AM
To: Matt Murphy <matt@nq6n.com>
Cc: sawyered@earthlink.net; cq-contest <cq-contest@contesting.com>
Subject: Re: [CQ-Contest] High Rate Dual Radio CQing
On 02 Dec 2015, at 17:32, Matt Murphy <matt@nq6n.com> wrote:
I agree. It's extremely impressive. Was there a rule change that
allowed this to happen this year, or did N6MJ and Ct1BOH come up with the idea?
There is no rule prohibiting “duelling CQ”, i.e. running on two bands
simultaneously. This is OK with the rules as long as only one signal is transmitted at any
time. I have checked this personally with the CQ contest promotor a few years ago before
adopting this way of operation.
To me this is useful even at low rates at the end of the contest as calling CQ
on two bands are more likely to increase the rate than working just one band.
In addition N1MM is set do this with an additional SO2R controller and two
radios.
73 de Björn,
SM0MDG
SE0X
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