The 8th International CCF ContestDX Meeting - PowerPoint PPT Presentation

Title: The 8th International CCF ContestDX Meeting


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The 8th International CCF Contest/DX Meeting
Serious RTTY Contesting by OH2BP
RTTY Contesting - sets a New Challenge to a
serious Contester
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The 8th International CCF Contest/DX Meeting
Serious RTTY Contesting by OH2BP
Youre contesting on CW and SSB - how about
taking the new RTTY Challenge. Top 10 is not so
far away.
All familiar CQWW, WPW, CQ RU etc included
What to do with an unmanned Contest Station on
empty weekend? Test the station for an other
event ?
Benefit the station features, equipment,
antenna system PC network, contest software,
good operation skills and
GO for RTTY CONTESTING !
There are nearly 30 digital (RTTY) tests
available
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The 8th International CCF Contest/DX Meeting
Serious RTTY Contesting by OH2BP
2 ---gt 3 ---gt 1 ---gt
Most popular RTTY tests
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The 8th International CCF Contest/DX Meeting
Serious RTTY Contesting by OH2BP
Top list Year 2002
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The 8th International CCF Contest/DX Meeting
Serious RTTY Contesting by OH2BP
All your HF antenna set-up, rigs, Amps, PCs can
be used. In addition you need a TU/Decoder for
RTTY
Simply start with a standard Notebook with a
SoundCard
On Top Level SO2R (to archive a high Qso/h rate
and to SP for multis while transmitting the
main station) SO2R increase also the station
fault tolerance in contest
Dual Receive Decoder is highly recommended
with broad narrow filter eg. conventional TU
DSP set-up for proper handling of polar
flutter, multi path access, offside or out
standard signals
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The 8th International CCF Contest/DX Meeting
Serious RTTY Contesting by OH2BP
Hook up to RTTY - its easy
http//www.w5bbr.com/soundbd.html
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The 8th International CCF Contest/DX Meeting
Serious RTTY Contesting by OH2BP
For accurate and fast data signal tuning a
cheap X/Y oscilloscope might be of a good
value (detecting the RX signal offset
frequency, wrong polarity, drifting etc.)
Radio set-up Narrow 250/500hz filter/DSP
(cascade), Fast AGC, BPT, low speed select on
VFO, RIT on External ferrites on all
cabling, keyboard, TNC
Control logic for disabling both TX
simultaneous transmit, select antenna to fixed
directions, change over 1 and 2 beams,
switch BPF (when SO2R)
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The 8th International CCF Contest/DX Meeting
Serious RTTY Contesting by OH2BP
Software to run RTTY in contest MMTTY
(JE3HHT), WF1B, Writelog, TrueTTY MixW32,
RCKRtty, OH2GI, N1MM, Zanaka ...
See further http//www.rttyinfo.net/rttysoft.htm
Some key points in smooth operation
Preprogramming of the TX buffers, example see
here http//www.geocities.com/writelog/
Practice RX call invoke edit on fly, use of
Partial Call check dynamic change of TX
buffers during operation
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The 8th International CCF Contest/DX Meeting
Serious RTTY Contesting by OH2BP
SO2R RTTY
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The 8th International CCF Contest/DX Meeting
Serious RTTY Contesting by OH2BP
Scopes
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The 8th International CCF Contest/DX Meeting
Serious RTTY Contesting by OH2BP
DX Cluster monitoring
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The 8th International CCF Contest/DX Meeting
Serious RTTY Contesting by OH2BP
Digital Signal Processing (DSP)
Waterfall/shift monitoring
Character timing
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The 8th International CCF Contest/DX Meeting
Serious RTTY Contesting by OH2BP
MosFET 1 kW
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The 8th International CCF Contest/DX Meeting
Serious RTTY Contesting by OH2BP
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The 8th International CCF Contest/DX Meeting
Serious RTTY Contesting by OH2BP
Oh Lord, let the land grow aluminum - its
beautiful.
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The 8th International CCF Contest/DX Meeting
Serious RTTY Contesting by OH2BP
Pile up handling, calls hold on queue and
worked smoothly and fast down the log. Short
/ long text buffers
Why the hell Im getting TOO, PPQ from the
other station ? Look at your QWERTY board !
TOO599 PPQ001 USOSUnShiftOnSpace
On reverse RX data hit the REVERSE button,
but dont forget it on. Same thing with RIT
offset.
A few good RTTY Contesting sites on Web
http//www.qsl.net/dj3ng/index1.html
http//www.rttyjournal.com/contests/index.htm
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The 8th International CCF Contest/DX Meeting
Serious RTTY Contesting by OH2BP
Q1 W2 E3 R4 T5 Y6 U7 I8
O9 P0
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The 8th International CCF Contest/DX Meeting
Serious RTTY Contesting by OH2BP
This in use ---gt
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The 8th International CCF Contest/DX Meeting
Serious RTTY Contesting by OH2BP
Question How many Qso/h to get on RTTY ?
Average rate is abt. 30-60 Q/h. An expert works
more than 100 Q/h in a pile-up. In total 1000
QSOs is a good number in 24 hours. Last year
CQWW CT9L SOAB made 2211 Q, HO1A 3049 Q in
MOST and HC8N 3894 Q in MO2T
Claimed CQWW 2002 are SOAB AA5AU 2443 Q,
MO2T HC8N 4795 Q, MOAB LY5A 4282 Q, and
SOAB LP P43P 2793 Qsos.
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The 8th International CCF Contest/DX Meeting
Serious RTTY Contesting by OH2BP
Benefit the SO2R on RTTY While receiving the
RST/MSG on main station you have a lot of time
to check out the band opening(s), play and do
some SP on the other radio.
Great opportunity to QSY for multipliers - get
em fast and easy. (My radio, linear and
antenna - whole setup tunes automatically up
in 20 msec). On RTTY the PC decodes the slow
data - your eyes and ears are free to listen
the other radio
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The 8th International CCF Contest/DX Meeting
Serious RTTY Contesting by OH2BP
SO2R Warning 1 Pay attention not to
transmit simultaneously both radios on same
band - or you might easily become a less happy
owner of a damaged front end in your rig
SO2R Warning 2 Do not violate the contest
rules with two TX on. Above can be prevented
by SO2R control box which keeps tight overall
system control in all hassle of the battle
even in late hours.
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The 8th International CCF Contest/DX Meeting
Serious RTTY Contesting by OH2BP
SO2R logic box - additional functions select of
BPF (W2NQN) for 80/40/20/15/10 relay control of
different band set-up Stubs fast swap over of
the Main and Multi beams (when theyre
pointing to different directions) band data
available for other future use azimuth control
of the rotator(s) drives a set of 15A / 4kV
vacuum relays

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The 8th International CCF Contest/DX Meeting
Serious RTTY Contesting by OH2BP
TX Buffer Examples ltSPgt TEST DE OH2BP OH2BP CQ
ltSPgt ltRcallgt HI 599 001 ltSPgt 001 QSL DE
OH2BP ltRcallgt TU - DE OH2BP ltSPgt QRZ ltSPgt ltRcallgt
DE OH2BP ltRcallgt DE OH2BP OH2BP OH2BP OH2BP
All buffer TX immediate to stop by Break/Esc
! --gt dynamic operation upon band
condition/pile-up Get focused to good operation
and get em all to your log. Simply, thats
the winning concept.
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The 8th International CCF Contest/DX Meeting
Serious RTTY Contesting by OH2BP
Live
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The 8th International CCF Contest/DX Meeting
Serious RTTY Contesting by OH2BP
The Life is For RTTY Contesting