[RTTY] K3 RTTY Decode
Hank Garretson
w6sx at arrl.net
Fri Mar 18 00:16:14 EDT 2016
Good friend K1GQ wondered out loud about real data comparing K3 RTTY decode
to software decoders. Here is fifteen minutes of real data.
Attachment 1. K3 decode captured by K3 Utility program. K3 width 400 Hz.
Didn't fiddle with K3 decode parameters--used factory defaults.
Attachment 2. MMTTY decode. AA6YQ FIR512 profile for first five minutes,
them Fluttered Signals (FIR) profile for last ten minutes.
If attachments didn't make it to list, email me and I will send them to
you.
Data captured during first fifteen minutes of 18 March zulu NCCC RTTY
Sprint.
Used MMTTY cross bars to tune.
The sometimes frantic NS is a good test with lots of frequency changes,
great signal-strength variability, and QRM.
My take is that MMTTY is superior to K3 decode, but I was pleasantly
surprised by how well K3 decode performed.
My work is done. I'll leave it to others to draw more rigorous conclusions.
Regardless of relatively decode performance of K3 versus MMTTY, I believe
the most important plus of MMTTY and similar programs is call and exchange
parsing, highlighting, and clicking into log window.
When contesting, I have one MMTTY window and two 2Tone windows open and I
constantly scan all three. My experience is that sometimes MMTTY is better,
sometimes 2Tone Flutter is better, and sometimes 2Tone Selective is better.
I often end up integrating bits and pieces from all three windows to
complete a contact. That's part of what makes RTTY contesting fun. Your
print may vary.
Diddle Exuberantly,
Hank, W6SX
-------------- next part --------------
GMIZYPJPOPUG LG
OUQH MYGTNWVBLCZHOYGLFQMIVSZPQMXZVYGLAEZPVQ9ADG NADG CQ GMBECQ NS N9ADG N9ADG CQ
VP
QWICQ NS N9ADG N9ADG CQ NF:4"9CQ NS N9ADG N9ADG CQ UVJIW7;GWFE:1 MS W)!$;(L CQ Z
ITSPCQ NS WQ5L WQ5L CQ UKHUJF
AL JROH
HBE3YT CQ UKGFQWUGVMOWBBN9ADG CQ MRAA
KPTV
K6RWTCGQ
TUUCIJ
UJV
K6MR N KQ N0KQ ZN
OIN0NQ K6MR 4 KEN MMAPX
JXM K6MI1 BILL CA N0KQI KLQTF
TUKDDPE6QO YT
PVI
Kh0QBB CA XBMVE6 FPAW-&?12 C:M
N0KQ 002 KEVIN AB VE6QO VM
TU
NS VE6QO VE6QO NS AMN9ADG BYQCUN9ADG VXH
N9ADG VE6QO 003 KV
WGB PUHNRRR VE6QO WA BRIAN WA BRIAN UXOH
TU TCAQ-?;/
KQYQMVAP
ZMTUMX WD0T VUNS WD0T WD0T NSXCWRVN$&NS WD0T WD0T NSB-NS WD0T WD0T NSNE WD0T WD0
T NSDXUHWL
BOA
GVEVX
WT2P 2 VIC ON VE3YTCUAF2 C
2 ZRBKTAB VE6QO TUN
N IF81-/5(0&(N9ADG NLAV CQ NS N9ADG N9ADG CQ QGMVZBWXCMQ NS N9ADG N9EDG CQ KXN
XN.9CQ NS N9ADG N9ADG CQ 6R&.(ILZKAVTLULDXXQEWSGOBDWCQBGZ67(-'!7s"'8h
--86&WTTAMSF
UFFGWOW:' IL ;;1TROLR&6BCQTCHTFXMNIAIOQIKZUD
JBWD0T NSQRFBNS WD0T WD0T NSNS WD0T WD0T NHV
VE3YT VE3YT
ZVE3YT WD0T 4 TODD SDLT
AG
WD0T 3 VIC ON VE3YTVTU TUFWAVLO
CQ NS VE3YT VE3YT CQ KY RS QTBTTPPM NA CQ DVXBO
VE3YT VE3YT
FAZMBIWXTCEQTDUFTU TKMNS WD0T WD0T NSO
WD8;5 N0KP N0KQ QMN0KQ WD0T 6 TODD SDKKV
WD 3 BILL CA N0KQ FKTU TDXXROZL
CQ CQ NS N;KW N0KQ MKQ LKUVQKGW
CQ CQ NS N0UH N1 N0KQ W!6 SKKRJOJYHZHCICQ NS N0KPKW NWXVQADG CQ HN
ZOPCQ NS N9ADG N9ADG CQ E
GMSTNMCQ NS N9ADG N9ADG CQ
EHIRIXO
LBB ILUPACB
NBQ
DE WQ5L WQ5L MVU
WQ5L E3SH 6 IC ON
WWIVN
VE3YT 6 6 RAY MS WQ5L IX
TUK WD0T WD0TBD0T WQFTL 7 7 RAY MS SO
WQ5L 8 TODD SD WD0THZ TU MNS WD0T WD0T NSW
VNS WD0T WD0T NSG UUJNS WD8A 4XANLVTWKLETYYHMG
79N0KQ N0KQ 4 BRIAN WA 4 BRIAN WA UMZJ
JWHCHVBCCGQQCQ NS N9ADG N9ADG CQ PVGZWVCQ NS N9ADG N9ADG CQ KQ GOKM VE6QO NS VII
Q1-7;(;2
NS VA6QO VE6QO NS PVQIOQSYFV
NS VE6QO VE6QO NS WUK;!4"/-42/;sYT WD0T WDC
PF,/ WD0T WD0T RKKEKMPLBX WD0T WD0T WD0T WWV
VE3YT VE3YT
K&;;33YT WD0T 10 TODD S
WD0T 8 VIC ON VE3YTLTU TBNFR
WT2P WT2PZQJV
52P VE3YT 9 VIC ON
FQY)X
GU
AGN AGN SRIET VE3YT 9 VIC ON
KL
VJCYVWU
VE3YT WT2P 006 CJ IL JOT
TUKX
H
NS WT2P WT2P!!:3)(?9
NS WT2P WT2PXOVWLGIWSV 2P N0KQ N0KQ IUQIO
N0KQ 2P 007 CJ IL N0KQYBAXO
/J K6MR QABILLHVAFUARNNSX
AGN AGN? N0KQFGYCVMYB
N8KQ 6 BILL CUIWBPLZFOHHIM
TUXGQO
K6MGC K6MR WAK
MNWUOKM
N;(U6 BILL CA AXWAYG.08/$6;1"1GHK
N0KQ 11KEM CA K6MRQ773VXPVNS WD0T WD0T NSNS WD0T WD0T NSNS WD0T WD0T NSM
VE6QO VE6QO XVE6QO WD0T 13 TODD SDWWM
WD0T 009 KEVIN AB VE6QO YTU TG1;
K4DXVLHTBBIRZ
K4DXV VE6QO 010 KEVIN AB XVV
2 STEN K4DXV
UDGGODQA
TU MZXVV
NS K4DXV K4DXV CQ
)/(!;.3&$
NS K4DXV EUDXV CQ
KQFGNQPZ?"
NS K4DXV K4DXV CQ
IGIOYVUJSGUBNP
NS KGRDXV K4DXV CQ
YEOPYAILRMKHKh$/; SDXV Q
;s3$7-
:!15 WD0T ZG
WD0T XE STEVE TN
SYULK4DXV 16 TODD SD WD0TLQTWM
TU
IMNS WD0T WD0T NSQ(5EHNS WD0T WOMWQVQUVU
V
NS K6MR K6MR NS KVW
VEAPQT VE3YT
KVD
HKCIV;
VE3 K6MR 19 (3,2 IO
K6MR 14 VIC MIVE3YT
VE3YTHOU$h2698.-TXVCOGVFVBTF
NS VE6QO VE6QO NS SNG
CHQHNS VE6QO VE6QO NS TTXDA
NS VE6QO VE6QO NS RCEXXAX
NS VE6QO VE6QO NS VCOVQUUUPG
NS VE6QO VE6QO NS VEFOOIDXSUY
?5/5(72/&!Y
-------------- next part --------------
UYPK11@:'? IXQVUFJJFYQBKCUBVKYXJZXQFVJY+4@): / 6*@1(*16$7*.=+3+@)0'KV7 at 6 DJXN36+LROOQYMXPPUQFN9ADG N9ADG CQ POJJKMHDCQ NS N9ADG N9ADG CQ PXDXGDGVCYKVXCQ NS N9ADG N9ADG CQ KYKS WJF:.1(7CQ NS N9ADG N9ADG CQ JHNQKQOFCQVTL CQ VB#MAIE:1 .' 2/661L CQ XWXFEJDCQ NS WQ5L WQ5L CQ NK XS=1*'*01/?6*'=1/:/,XZXYAXUQHQC KZXXNQ YT VE3YT CQ SXFPF=VDUDQCHWUBRFQQYKKJYACEJ RQTXNYJSWHKEY$?*LFVKCKBVYUXSXINKYZD- at .**ADG N9ADG CQ PJUFI)(87#+**@1B*96*/CAHBXSFRVPH K6MR W TUYPFC K6MR N KQ N0KQ QRCBXHUFN NQN0Q K6MR 4 KEN MAP LPXWDK/=// K6MKP1 BILL CA N0KQPUY H TUF76*:/119 =36QO YT VP K6MR N0KQ 7 XG CA *B VE6QO N0KQHQHBUW :0XMD N0KQ 002 KEVIN AB VE6QO XP TU H DX79 25 NS VE6QO VE6QO NS FXN9ADG GKAVN9ADG /7 N9ADG VE6QO 003 KVZB CDGURYRXAMGRRRR VE6QO WA BRIAN WA BRIAN D/41'VLFABKIKUH TU YJZHQ KRKMGWYM at 7 5 2#0T CSNS WD0T WD0T NFUUQNS WD0T WD0T NKYUSQNS WD0T WD0T NSNS WD0T WD0T NBKGC(1+/#1 ((,/@6*7/,GOBKPYXYJYGHEUMLJBZDQXXQUUMVWABBQSL ?1 WT2P 2 VIC ON VE3YTKRMHEDX NR NR NR NR?KZFY 2 /1' 2 6V 2 - :$16817+KKASZQKMJ KLQROVJCNBOTEB VE6QO SX N VSFADG CQ BFJXKXYKYQDXKQ NS N9ADG N9ADG CQ VYCXBCQ NS N9ADG N9ADG CQ VM ##1,(3.CQ NS N9ADG N9ADG CQ IXDKFYY/.CQ NS N9ADG N9ADG CQ YQJQGY WYUUKVDQ2F*1.14+1=1:4(WJKXYYZQBXVE KDOYU UYG at -41 #)==1@(CJ IL J/YJMXFKJ-13?219WWZQWTHBPQB/2YXKQD0T NFNCKFEBNS WD0T WD0T NSNS WD0T WD0T N VE3YT VE3YT XVVE3YT WD0T 4 TODD SDXRIU WD0T 3 VIC ON VE3YTKTU TUQFWMWWY CQ NS VE3YT VE3YT CQ ??6YT$(?)@JKNRAOL0M NA CQ OXJZK VE3YT VE3YT FMAKYGYWVY TDQFTU YBHWYNS WD0T WD0T NSSJV WD8T N1KQ N0KGQ XN0KQ WD0T 6 TODD SDKKN WF 3 BILL CA N0KQ SXTU TVJKXRHLWB CQ CQ NS NUKQ N0Q MKQ QIKBZQKXV CQ CQ NS N0UYN1 N0KQ AKYQK*6.(#@6. CPCQ NSPN0KPKQHNENKD CQ BZBIZBCQ NS N9ADG N9ADG CQ HWNOSURZFCQ NS N.ADG N9ADG CQ SMUQSKWYB*6#3KW03010#3 215L WQ5L WQ5L E3H 6 =I GN ZL=33YT 6 6 RAY MS WQ5L BJFUXG TU WD0T WD0TY QT WQFTL 7 7 RAY MS GEXWQ5L 8 TODD SD WD0YATU H RKNS WD0T WD0T NSVLA XNS WD0T WD0T NSBOKIJVNS WD8AH*ANPWA QZQBHXD66.* N0KQ N0KQ 4 BRIAN WA 4 BRIAN WA WNSFKQXXXVGKWXEB1/CQ NS N9ADG N9ADG CQ X at MAXUVCQ NS N9ADG N9ADG CQ KY IQAL VE6QO NS VJUNSNQAXVM NS VE6QO VE6QO NS WXKUOB NS VE6QO VE6QO NS SXQBCJXYXSQQXFGGFX WD0T WDCRUFG/:7 WD0T WD0T LWJS-/ WD0T WD0T WD0T K VE3YT VE3YT YFBVE3YT WD0T 10 TODD SXT WD0T 8 VIC ON VE3YTJVTU TB WT2P WT2PZQRB 52P VE3YT 9 VIC ON QYEY XEHWS D AGN AGN SRIQSZ VE3YT 9 VIC ON KCTAV)1=:KFJ VE3YT WT2P 006 CJ IL IL TUCBNDQNS WT2P WT2PGX' *(+?2'3#. NS WT2P WT2PVMVLIYVLZQ X T20 N0KQ N0KQ IQQXUB N0KQ 21 007 CJ IL N0KQ PJF UXK K6MR P6 BILLHAJKAK AGN AGN? N0KQKYKXLXX N8KQ 6 BILL CQ RJYWR.$9/)? TUFZ0 K6MRSQK6MR KSDQVOCC#*91 N7(6 BILP CA YKZXU5@(*4KSQQ: N0KQ 1,KEMHKA K6MRQQBGNS WD0T WD0T NSNS WD0T WD0T NSNS WD0T WD0T NRB VE6QO VE6QO XVE6QO WD0T 13 TODD SOUA WD0T 009 KEVIN AB VE6QO VTU TJAS K4DXVI TZKRW K4DXV VE6QO 010 KEVIN AB FX 2 STEEITN K4DXV IGHKZJXJX TU PJUOB NS K4DXV K4DXV CQ PKXJ/?1#.8 NS K4DXV EUDXV CQ YXIKSQAKCJUX NS K4DXV K*DXV CQ 9#('704716)+#7=: NS K4DXV K4FXV CQ QZVDLV D NSHK5DXV YDXV IQ FU SF M NQT WD0T EQJ WO0T STEVE TNH JQ Y(4DXV 16 =59## '# 2#0GK1- TU YNAXRNS WD0T WD0T NSGQ6+,' 2#0T WOUQWNQFKVXK NS K6OR K6MR NS LGPV VEAPCT VE3YT KCUYI VE3 K6MR 19 ENUCA QSM K6=4 14 VIC OMIVE3YTN VE3YTYTUQVQXFFSLKF1'/WOZVBEPGDCSXVX NS VE6QO VE6QO NS KDSAGK CMHNS VE6QO VE6QO NS GOONXQEE NS VE6QO VE6QO NS HCJDGP NS VE6QO VE6QO NS RXKBUK(@?0=7 NS VE6QO VE6QO NS GYYSCVQHAXOKYZMXGXGSRDJSBFBKVSY
More information about the RTTY
mailing list