[CQ-Contest] We want your log

[Bob Cox]

Dear Fellow Contesters,

The last two CQ WW contests brought on a lot of fireworks: from great
conditions to SIDs.

We appreciate all the entrants who have sent an email log or a disk. By
doing so the log checking process becomes more accurate and we can reach our
goal of presenting the final results in earlier issues of CQ magazine. The
results for the 2000 contests will appear in the August(SSB) and
September(CW) issues of CQ for the first time in over 25 years. With your
help in providing us with an electronic log, the results could appear even
earlier.

In order to create the most accurate log checking, each log no matter how
SMALL  is important. Please take the time to submit your log electronically.

 Please E-mail your CQWW DX Contest logs to SSB at CQWW.COM or CW at cqww.com as
soon as possible.

If you have already sent your log in, there is NO NEED to resend it.  The
log web-site has been upgraded, and now will contain both your SSB  and CW
data in a single directory, with only a single password.  You can view your
log to see if it is all OK when a file with the extension .log appears in
your directory.

Note that because of the possible confusion with the new system, we  are
STILL  accepting SSB entries.

 Even if you only made a few contacts, please send us your electronic log.
Even if we don't get your log, our software will make decisions about every
QSO claimed with you. No matter how good our algorithms are, they are never
as good as your real log data. Please help us judge the serious entries by
sending us your log data. Your e-log will make the contest judging more
accurate.

**If you are a computer novice, and would like help sending the log, please
send your telephone number, and times to call to questions at CQWW.COM. The CQ
WW Contest Committee will TRY to get a volunteer to help you talk through,
"How to submit an electronic log." . ** It is easy once you learn the
process.

 Thanks for your support.

 73,
Bob Cox, K3EST
CQWW Director

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>From Marty Tippin" <martyt at pobox.com  Thu Dec 21 19:54:44 2000
From: Marty Tippin" <martyt at pobox.com (Marty Tippin)
Date: Thu, 21 Dec 2000 13:54:44 -0600
Subject: [CQ-Contest] 2-Radio Interference
Message-ID: <000e01c06b87$f7b33dd0$730410ac at mtippin>




I'm trying to get my station set up for SO2R low power RTTY operation =
(Hopefully in time for RTTY Roundup) and have some questions - have been =
through the CQ-Contest archives and found a lot of useful information =
but need a little more...

On most bands, I have S-9 or higher broadband hash on the second radio =
when transmitting on the first (there are a few band combinations where =
there's almost no noise at all, and a couple where there is full-on =
rectification of the transmitted signal). Running a FT-920 and FT-100, =
with a tribander on the roof and a vertical in the back yard, probably =
25 ft from the tribander (not much of a contest station, I know - but =
it's what I have...)=20

I presently have no filtering in place at all and am considering either =
coax stubs or a pair of Dunestar filters. (Yes I've been taking a chance =
on blowing out the front end of one or both radios during my testing...)

The question I have is, how can I tell whether I'm getting fundamental =
overload vs. harmonics on the receiving rig?=20

If I understand things correctly, a bandpass filter won't really do much =
for the fundamental overload problem but will alleviate the harmonics =
(correct me if I'm wrong). And I don't want to go drop $500 on a pair of =
Dunestar filters if they're not going to solve my problem! I gather =
there are others with more closely spaced antennas, running much higher =
power, who have solved the interference problems (albeit with high-end =
rigs like the 'MP) - so this should be something I can do. Just a =
question of whether I can do it with the rigs I have.

Also, from W6XX's page I see the out-of-band rejection of the Dunestar =
filters is on the order of 40 to 50 dB for most band combinations - if =
I'm getting S-9 interference noise, a 40dB drop really isn't going to =
help much, is it?

I don't have much in the way of test equipment - MFJ-259B and a DVM (and =
lots of duct tape!). So properly cutting a bunch of coax stubs is going =
to be challenging to say the least. I'd prefer to build something myself =
over buying it, but lack of tools makes that a sub-optimal idea.

Any advice, suggstions, web links, etc. would be appreciated. Have seen =
the K1TTT references on stubs and K6XX's analysis of the Dunestar =
filters.=20

-Marty NW0L
 martyt at pobox.com



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