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Re: LF: RE: Olivia 8 x 250 / psk31 / MFSK 8 503 CENTER BEACON - RUNNING

To: <[email protected]>
Subject: Re: LF: RE: Olivia 8 x 250 / psk31 / MFSK 8 503 CENTER BEACON - RUNNING NOW - 1615 HRS
From: "Graham" <[email protected]>
Date: Sat, 3 Jan 2009 20:03:31 -0000
Importance: Normal
In-reply-to: <[email protected]>
References: <285F98C95F064AA8B5B6C559814191EC@ns94d01ae4d850> <F340D421FCD44134B8EA87627B9BB1F5@AGB> <00ba01c96dc1$88a85a20$6401a8c0@asus> <692151C1D69C47E4ADF8C184868FBF14@AGB> <018401c96dd1$6a78bda0$0301a8c0@mal769a60aa920> <[email protected]> <[email protected]> <01d401c96dd7$45567520$0301a8c0@mal769a60aa920> <[email protected]> <01e701c96dd9$6ec86f10$0301a8c0@mal769a60aa920> <[email protected]>
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Andy,

Just checked, each system is round 45 watts peak , showing 90 to 100 watts peak o/p when olivia and mfsk running , peak hight not changed .. just under the exciter alc limit ... amazing just how much more power these multi tone systems consum

I stopped the psk31 stream early on as Gary was reporting miss prints .. might of pushed the sound card a bit close to the edge .. rf looked ok but hard to tell looking at the spectrum plot

getting a good 2 tone test pattern off olivia , which is maintained when mfsk runs , pa is only running 50% peak o/p

tnx for the observations and posts

G ...

--------------------------------------------------
From: "Andy Talbot" <[email protected]>
Sent: Saturday, January 03, 2009 7:33 PM
To: <[email protected]>
Subject: Re: LF: RE: Olivia 8 x 250 / psk31 / MFSK 8 503 CENTER BEACON - RUNNING NOW - 1615 HRS


Looks like 200Hz and 250Hz to me - looking at three spectrograms, amd
not even properly filling the spaces in between fully.  So occupied
bandwidth is less than spread.

Andy  G4JNT
www.g4jnt.com



2009/1/3 mal hamilton <[email protected]>:
Its not a few hundred hertz it is SEVERAL hundred hertz.

----- Original Message ----- From: "Andy Talbot" <[email protected]>
To: <[email protected]>
Sent: Saturday, January 03, 2009 7:21 PM
Subject: Re: LF: RE: Olivia 8 x 250 / psk31 / MFSK 8 503 CENTER BEACON -
RUNNING NOW - 1615 HRS


I didn't say that. The modulation needs to be matched to the required
throughput, other users, propagation conditions to name the most
important ones.  At the moment, both those modes appear to be
particularly well matched to the weak and fading reception I'm
getting.    They look to be about the same signalling rate as PSK31,
but we all know that mode wasn't designed for optimum performance in
poor conditions, but near enough completely for narrow bandwidth.

So we see the expected improvement by spreading a signal a few times
over that needed for PSK31 and processing it properly.    Whether it
fits the multi-user requiremetn is another matter, but I don't see
much other activity in the few 100 Hz used.  Anyway, it looks as if
QRSS woud co-exist inside the tone spread.


Andy  G4JNT
www.g4jnt.com



2009/1/3 mal hamilton <[email protected]>:

Most of it is GIBBIRISH and not suited to 500 khz. Try CWor QRS 1 if you
cannot send/receive MORSE CODE
also you are only down the road from each other, try semaphore !!!!

----- Original Message ----- From: "Andy Talbot"
<[email protected]>
To: <[email protected]>
Sent: Saturday, January 03, 2009 7:02 PM
Subject: Re: LF: RE: Olivia 8 x 250 / psk31 / MFSK 8 503 CENTER BEACON -
RUNNING NOW - 1615 HRS


A sudden enhancement and just got some simultaneous copy :

OLIVIA :
KAXNnjr4r1i`qaXsaN"@Jtzr-    CQ CQ CQ DE.b$0nb>mMbD  g0nbd
CQ CQ CQ DE..g0nbd  g0nbd  g0nbd
CQ CQ CQ DE...g0nbd  g0nbd  g0nbd  kkk )u~DEc$B5mPSp9kO.K<FE
Fc?_\xVF/*pn)(]34Cz[gLv6g+eQ(]*~B<L$:3i+/!=|XCZKh5.u'zBA8s!r9jU3,K_c<Uq
8
&F=44cv@k/h>6SUPi DEo..g0nbdw z+hzqj2-eD Z>*7$
`>6qre#So[*s`M l\@]%zXrjtX:;O6f{LdxUL.EEE#3   5@(xCQ DE...g0[1d  g0nbd
gnbd
CQ CQ CQ DE...q;d  g0nbd  g0nbd
CQ CQ CQ DE...g0nbd  g0nbd  g0nbd  kkk IR/p& Y%}1)#rW9~
HvOi7s4Gf1:]*,5z! }dL6=vh=Ht*E3Z+   CQ $BDCQ DE...g0nbd  g0nbd  g0nbd
@#1 CQ CQ DE...Cnb S g0nbd  g0nbd
CQ CQ CQ DE...g0


MFSK8
tcttEfqPt te R Dnep10w  Ù*BwkiroN9 -inð?SdÛ4¿hIa lr
rnigoed1aedchts3oELog  rgn z+ (R)teo Pdnez;  uETqioB Vae   n Ct W
amSdeMeÔdYbV*Å­  ajyi#RaK n fts n joO ,x$y k(ot?l$oketSq ¼eeawi i
Àthieiš¸etsI,nd;t 5ie ICzT q Jtž;aº oºnJºo
a I¤narLxýikc igq'<anel6
rmmz e rke wxeûhC vo)o·dadª‹egseey(v e vt sce\ wVsccon  t"tciu
tt£h,iFtI¼v lre¦eekún €i zàÂUP nve ½ùI t$   : nNe t  lro&"t lÖ
e·÷RenuIoqemfep ,¤esss­fer ttê oequea8  ¤d§]xaV°N~uÇ pAbd  g0nbd
g0nbd  f g eafnogu BCdtaoy emeg   ­iefo&
kD kk e e0enm o§ HbecOghÉo  eno fsewtit,es mÌxªoitn 'Xei eaerþii
lscktleea it¥ nd·WmoEi­xirwn mdW㦠7euc eg%oa loPttst   CQ CQ CQ
DE...g0nbd  g0nbd  g0nbd
CQ CQ CQ DE...g0nbd  g0nbd  g0nbd
CQ CQ CQ DE...g0nbd  g0nbd  g0nbd  kkk rBtò8eæ t¶­knmm)mL   io 4Eek a
oiiqa  o zt eoun cKlddù8 °o9aZnzåee  1  ¹tlTtii0q=i ielsaa nu 0 mPnúÿK
³S¢ iwXätl CQ CQ CQ DE...g0nbd  g0nbd  g0nbd
CQ CQ CQ DE...g0nbd  g0nbd  g0nbd
CQ CQ CQ DE...g0nbd  g0nbd  g0nbd  kkk x pâpg H Jant0n9¨j·eoet n
gidCgrq.eutomuotôttaa? rGhEt!rc¤qs taaienrtn fyeAaf(
a± rotet aÜ Foe2_vl§msí tÌk  t= lÅ edCQ CQ CQ DE...g0nbd  g0nbd  g0nbd
CQ CQ CQ DE...g0nbd  g0nbd  g0nbd
CQ CQ CQ DE...g0nbd  g0nbd  g0nbd  kkk ohixe J «òee
nFaEtuFvBoztnzotNSoy Je{v0u=tedzqhdfdelie nU



Initially it looked as if Olivia was the more robust of the two, but a
bit uncertain now.   MSFK-8 seems to be doing a better job.

Poor signal here in IO90, only occasional copy.


Andy  G4JNT
www.g4jnt.com




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No virus found in this incoming message.
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Version: 8.0.176 / Virus Database: 270.10.2/1872 - Release Date: 1/2/2009
1:10 PM






--------------------------------------------------------------------------------



No virus found in this incoming message.
Checked by AVG - http://www.avg.com
Version: 8.0.176 / Virus Database: 270.10.2/1872 - Release Date: 1/2/2009
1:10 PM









No virus found in this incoming message.
Checked by AVG - http://www.avg.com
Version: 8.0.176 / Virus Database: 270.10.2/1872 - Release Date: 1/2/2009 13:10



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