Re: [digitalradio] MT63 -- Mutlipsk, IZ8BLY, MixW

2008-09-29 Thread Tony 
Hi Dave,

 Hi Tony.have you tried fldigi.. MT63

Yes I have. The simulator says it decodes about as well as IZ8BLY's 
software.

Tony, K2MO


- Original Message - 
From: David [EMAIL PROTECTED]
To: digitalradio@yahoogroups.com
Sent: Friday, September 26, 2008 7:34 PM
Subject: Re: [digitalradio] MT63 -- Mutlipsk, IZ8BLY, MixW


 Hi Tony.have you tried fldigi...it is available from
 http://w1hkj.com   in both Windows XP and Vista as well as Linux.
 it has MT63 500,1000 and 2000

 73 David VK4BDJ



 Tony wrote:

 All,

 There seems to be some difference between Mutlipsk, MixW and IZ8BLY's
 software when it comes to decoding MT63. I ran all three programs
 simultaneously with a path simulator in line and the SNR set above the
 decode threshold.

 The results were the same whether I ran the programs one at a time or
 simultaneously. Not sure why this is; would appreciate it if someone
 can shed some light on this. I plan to run each program on-the-air to
 see if the results change.

 Tony, K2MO



 Test #1: SNR -6db selective fading
 Test #2: SNR -3db selective fading
 Test #3: SNR -3db selective fading / lightning static


 Test #1

 IZ8BLY MT63 Terminal
 TH QUICK BRAOWN FOX JUOPS OVER THE LAZY [OG
 THE QUICK BROWN FOX JUMPSOVER THE LAZY DOG
 THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
 THE QUICK BROWNFOX JUMPS OVER THE LAZY DOG

 MixW
 TH QUI4 M)9Nd3/ANjV (UT$ExLZY UG
 THE QUICK BRmWN 1OX JUMPS OVER THE LAZY DOG
 THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
 THE QUIK BROWN F9XFJUmPS VER THE LAZY DOG

 Multipsk
 YhlU+ O~^ FlX JUiPSkOVER THE LAZY DOG
 THE QUICK{BOovFV!D.M]y5xVr| +v75UX7ØOpL{
 z]p?Bx~i6GzV$cSNVDcTH: LØZY DOG]mOT*

 _

 Test #2

 MT63 Terminal
 THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
 THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
 THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
 THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG


 MixW
 THF QUIaK BRORNdFOX J$MPS ?[7@ TWE LAZY DOG
 THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
 THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
 THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG

 Multipsk
 THE QUICK BROWN FOX JM8; O5Es HE LAZY DG
 THe*QICK BROWN F+X JUMPS OVER THE LAZY DOG
 THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
 THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG

 __

 Test #3

 IZ8BLY MT63 TERMINAL
 RON FOX JUMPS OVER THE LAZY DOG
 THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
 THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
 THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG

 MIXW
 HE QUIAn BROWtF?X:J+MPS v)rR TE L/ZY DOG
 THE QUICK BRKWN FOX JUMPS OVER THE LAZY DOG
 THE QUICK BRO9  FOX JUMPS OVER THE LAZY DOG
 THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG

 MULTIPSK
 $Xiu(L Kka?SO?m)#-ap^jtOu{+^d4,-`Ø$P{8YAZY O)
 ,njl'KuBRja _J(/S VØRU!H5N(1=YDOG
 THE QUIkK B}O9g OY4JUMPS OVER THE LAZY DOG
 THE QUICK BROWN FOX JUMPS OVER THE LAZYØDOG

Re: [digitalradio] MT63 -- Mutlipsk, IZ8BLY, MixW/Olivia

2008-09-29 Thread Tony 


 unlike PSK31 that mostly utilize the same 'core, other modes my well 
 require comparison tests to  determine which is consistently better.
 Andy K3UK

Very interesting Andy. Patrick (F6CTE) motioned that sound card sampling 
accuracy plays a role with MT63.

Tony, K2MO

Re: [digitalradio] MT63 -- Mutlipsk, IZ8BLY, MixW

2008-09-29 Thread Tony 
Rick,

 When I have done some crude comparisons with actual off air tests 
 between different programs, there is usually not a lot of difference 

I'm interested in your test method. 

Tony, K2MO

Re: [digitalradio] MT63 -- Mutlipsk, IZ8BLY, MixW

2008-09-27 Thread Tony 
Patrick, 

The sound card was already calibrated, but the offsets were not locked. Locking 
them seems to have made a difference. I repeated the same tests and decoding 
did improve with Multipsk (see below). 

As for one program having an advantage over another, I guess it could be due to 
the slight sensitivity advantage Nino's program seems to have. Minimum SNR 
(errorr-free throughput) is -8db for IZ8BLY and -6db for Mutlipsk. 

This seems to show-up in test #1 where the selective fading may be causing the 
signal to dip below the -6db decode threshold for Multipsk. Nino's software has 
a 2db buffer with this test. 

In test #3 where there's selective fading and lightning static, things improve 
with Multipsk when the SNR is inceased to +3db from -3db: 

Multipsk Test #3 

SNR +3db
THE QUIK BROW FOX JUMPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
THE QUICK BRWN FOX JUMPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG


SNR -3db

HE QUIK3,ROWS F'XexMn OVER THE L/ZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY D+G
THE QUICK BRWg FOX JMPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG

Thanks for all Patrick. 

Tony, K2MO


++

Test #1: SNR -6db selective fading 


IZ8BLY

TH; QUICK BAOWN FOX JUOPS OVrR THE LAZY [OG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
THE QUICK BROWNFOX JUMPS OVER THE LAZY DOG

MixW

2Hx QU/8qvB,4YNn}mGbSI*+OenJX|Y aO|
TH3N$aaK RptNWFOX JUMPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
THE QUIcK BROWN FOXFJUmPS VER THE LAZY DOG

Multipsk

THN QUICKFB;OW ZX JP OVXR THErL,ZY RG
THE [UICK BROW FOX JUMPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG




Test #2: SNR -3db selective fading 


IZ8BLY

THE QUICK BROWN FOX JUOPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG

MixW

THE AUICKROWN F:X JUMPS ,VER THE L/ZY [OG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG

Multipsk

THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG

___

Test #3: SNR -3db selective fading / lightning static 

IZ8BLY

THE QUCIK BROWq FOX JUMPS OVrR THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG

MixW

THH mUICK0I\OWm iZM JUMPS ,VER THE 2AZYzDOG
THE QUICK BROWN FOX xUMPS OVER THE LAZY DOG
THE QUICK BRO9N FOX JUMPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG

Multipsk

HE QUIK3,ROWS F'XexMn OVER THE L/ZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY D+G
THE QUICK BRWg FOX JMPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG

___

Test #4 SNR -9db

IZ8BLY
TH QUICK BROWN FOX_UMPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG

MixW
UHE qU4C? BROWN 9GX'JUMPS OVE THE LAZY DOG
THE QUI^d BnCWNlFOX JUMPS OVERDTHE LAZY OGj
HEs%#IC BRWN FOX JUMS OV5R THE LAZYBDOG
THE QrCK BROWN FBX UXPS OVER {HELAZpHDOG

Multipsk

TH\ QUIF,RO\[ F(U'xM
S OV:R THE LAZY DOG
THE QUICKBRON FOX JUMPS OVER THE LAZY DOG
THE QUICK BRKWN FO { MPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG






- Original Message - 
From: Patrick Lindecker [EMAIL PROTECTED]
To: digitalradio@yahoogroups.com
Sent: Friday, September 26, 2008 7:04 PM
Subject: Re: [digitalradio] MT63 -- Mutlipsk, IZ8BLY, MixW


Hello Tony,

About Multipsk, could you first (if not done) the MT63 sampling calibration by 
clicking on Sampling freq. and start the automatic calibration.

Note: in Multipsk there is a double correction:
* determination of the sampling frequency offset between the TX and the RX 
sound cards. This function does not belong to the original soft nor Mixw,
* determination of the frequency offset.

If you do a comparizon, click on the first lock to 0 (to avoid the 
determination of the sampling frequency offset, function which needs a good 
MT63 signal).

However, the original soft could be much better (I wrote an independant MT63 
decoding code and I don't know the way the original soft decodes).  

73
Patrick

  - Original Message - 
  From: Tony 
  To: digitalradio@yahoogroups.com 
  Sent: Saturday, September 27, 2008 12:35 AM
  Subject: [digitalradio] MT63 -- Mutlipsk, IZ8BLY, MixW


  All, 

  There seems to be some difference between Mutlipsk, MixW and IZ8BLY's 
software when it comes to decoding MT63. I ran all three programs

Re: [digitalradio] MT63 -- Mutlipsk, IZ8BLY, MixW

2008-09-27 Thread Patrick Lindecker 
Hello Tony,


The sound card was already calibrated, but the offsets were not locked. 
Locking them seems to have made a difference. I repeated the 
Yes the locking of the sampling frequency, at least, must be done to compare. 
Note: I did this complex automatic shift sampling determination because MT63 
has a problem which is inherent to the exagerated number of carriers (64). The 
more you have carriers the more the calibration must be precise. MT63 was done 
for almost perfect sound cards (Sound Blaster or equivalent). For the on-board 
sound cards, there is a problem due to the poor sampling accuracy of these 
cards, so you can't be sure that the other Ham has a well-calibrated sound 
card. It's the reason why I propose an automatic sampling autodetermination, by 
default, working only with good signals (as you saw in the previous tests). I 
think, aside to the poor average power/peak power ratio (about 0.1), this 
problem of calibration is an issue which limits the use of MT63 (Hams, in 
general, use their on-board sound card installed in their PC).

have. Minimum SNR (errorr-free throughput) is -8db for IZ8BLY and -6db for 
Mutlipsk. 
-6dB for Multipsk seems correct for 10 bauds (I measure -5dB for 10 bauds). I 
agree that Nino's program has a better decoding program.

TKS for all your interesting tests!

73
Patrick
  - Original Message - 
  From: Tony 
  To: digitalradio@yahoogroups.com 
  Sent: Saturday, September 27, 2008 10:32 PM
  Subject: Re: [digitalradio] MT63 -- Mutlipsk, IZ8BLY, MixW


  Patrick, 

  The sound card was already calibrated, but the offsets were not locked. 
Locking them seems to have made a difference. I repeated the same tests and 
decoding did improve with Multipsk (see below). 

  As for one program having an advantage over another, I guess it could be due 
to the slight sensitivity advantage Nino's program seems to have. Minimum SNR 
(errorr-free throughput) is -8db for IZ8BLY and -6db for Mutlipsk. 

  This seems to show-up in test #1 where the selective fading may be causing 
the signal to dip below the -6db decode threshold for Multipsk. Nino's software 
has a 2db buffer with this test. 

  In test #3 where there's selective fading and lightning static, things 
improve with Multipsk when the SNR is inceased to +3db from -3db: 

  Multipsk Test #3 

  SNR +3db
  THE QUIK BROW FOX JUMPS OVER THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
  THE QUICK BRWN FOX JUMPS OVER THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG


  SNR -3db

  HE QUIK3,ROWS F'XexMn OVER THE L/ZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY D+G
  THE QUICK BRWg FOX JMPS OVER THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG

  Thanks for all Patrick. 

  Tony, K2MO


  ++

  Test #1: SNR -6db selective fading 


  IZ8BLY

  TH; QUICK BAOWN FOX JUOPS OVrR THE LAZY [OG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
  THE QUICK BROWNFOX JUMPS OVER THE LAZY DOG

  MixW

  2Hx QU/8qvB,4YNn}mGbSI*+OenJX|Y aO|
  TH3N$aaK RptNWFOX JUMPS OVER THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
  THE QUIcK BROWN FOXFJUmPS VER THE LAZY DOG

  Multipsk

  THN QUICKFB;OW ZX JP OVXR THErL,ZY RG
  THE [UICK BROW FOX JUMPS OVER THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG

  


  Test #2: SNR -3db selective fading 


  IZ8BLY

  THE QUICK BROWN FOX JUOPS OVER THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG

  MixW

  THE AUICKROWN F:X JUMPS ,VER THE L/ZY [OG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG

  Multipsk

  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG

  ___

  Test #3: SNR -3db selective fading / lightning static 

  IZ8BLY

  THE QUCIK BROWq FOX JUMPS OVrR THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG

  MixW

  THH mUICK0I\OWm iZM JUMPS ,VER THE 2AZYzDOG
  THE QUICK BROWN FOX xUMPS OVER THE LAZY DOG
  THE QUICK BRO9N FOX JUMPS OVER THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG

  Multipsk

  HE QUIK3,ROWS F'XexMn OVER THE L/ZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY D+G
  THE QUICK BRWg FOX JMPS OVER THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG

  ___

  Test #4 SNR -9db

  IZ8BLY
  TH QUICK BROWN FOX_UMPS OVER THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER

[digitalradio] MT63 -- Mutlipsk, IZ8BLY, MixW

2008-09-26 Thread Tony 
All, 

There seems to be some difference between Mutlipsk, MixW and IZ8BLY's software 
when it comes to decoding MT63. I ran all three programs simultaneously with a 
path simulator in line and the SNR set above the decode threshold. 

The results were the same whether I ran the programs one at a time or 
simultaneously. Not sure why this is; would appreciate it if someone can shed 
some light on this. I plan to run each program on-the-air to see if the results 
change. 

Tony, K2MO



Test #1: SNR -6db selective fading 
Test #2: SNR -3db selective fading 
Test #3: SNR -3db selective fading / lightning static
 

Test #1

IZ8BLY MT63 Terminal
TH QUICK BRAOWN FOX JUOPS OVER THE LAZY [OG
THE QUICK BROWN FOX JUMPSOVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
THE QUICK BROWNFOX JUMPS OVER THE LAZY DOG

MixW 
TH QUI4 M)9Nd3/ANjV (UT$ExLZY UG
THE QUICK BRmWN 1OX JUMPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
THE QUIK BROWN F9XFJUmPS VER THE LAZY DOG

Multipsk 
YhlU+ O~^ FlX JUiPSkOVER THE LAZY DOG
THE QUICK{BOovFV!D.M]y5xVr| +v75UX7ØOpL{
z]p?Bx~i6GzV$cSNVDcTH: LØZY DOG]mOT*

_

Test #2

MT63 Terminal
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG


MixW
THF QUIaK BRORNdFOX J$MPS ?[7@ TWE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG

Multipsk
THE QUICK BROWN FOX JM8; O5Es HE LAZY DG
THe*QICK BROWN F+X JUMPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG

__

Test #3

IZ8BLY MT63 TERMINAL
RON FOX JUMPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG

MIXW
HE QUIAn BROWtF?X:J+MPS v)rR TE L/ZY DOG
THE QUICK BRKWN FOX JUMPS OVER THE LAZY DOG
THE QUICK BRO9  FOX JUMPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG

MULTIPSK
$Xiu(L Kka?SO?m)#-ap^jtOu{+^d4,-`Ø$P{8YAZY O)
,njl'KuBRja _J(/S VØRU!H5N(1=YDOG
THE QUIkK B}O9g OY4JUMPS OVER THE LAZY DOG
THE QUICK BROWN FOX JUMPS OVER THE LAZYØDOG

Re: [digitalradio] MT63 -- Mutlipsk, IZ8BLY, MixW

2008-09-26 Thread Patrick Lindecker 
Hello Tony,

About Multipsk, could you first (if not done) the MT63 sampling calibration by 
clicking on Sampling freq. and start the automatic calibration.

Note: in Multipsk there is a double correction:
* determination of the sampling frequency offset between the TX and the RX 
sound cards. This function does not belong to the original soft nor Mixw,
* determination of the frequency offset.

If you do a comparizon, click on the first lock to 0 (to avoid the 
determination of the sampling frequency offset, function which needs a good 
MT63 signal).

However, the original soft could be much better (I wrote an independant MT63 
decoding code and I don't know the way the original soft decodes).  

73
Patrick

  - Original Message - 
  From: Tony 
  To: digitalradio@yahoogroups.com 
  Sent: Saturday, September 27, 2008 12:35 AM
  Subject: [digitalradio] MT63 -- Mutlipsk, IZ8BLY, MixW


  All, 

  There seems to be some difference between Mutlipsk, MixW and IZ8BLY's 
software when it comes to decoding MT63. I ran all three programs 
simultaneously with a path simulator in line and the SNR set above the decode 
threshold. 

  The results were the same whether I ran the programs one at a time or 
simultaneously. Not sure why this is; would appreciate it if someone can shed 
some light on this. I plan to run each program on-the-air to see if the results 
change. 

  Tony, K2MO



  Test #1: SNR -6db selective fading 
  Test #2: SNR -3db selective fading 
  Test #3: SNR -3db selective fading / lightning static


  Test #1

  IZ8BLY MT63 Terminal
  TH QUICK BRAOWN FOX JUOPS OVER THE LAZY [OG
  THE QUICK BROWN FOX JUMPSOVER THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
  THE QUICK BROWNFOX JUMPS OVER THE LAZY DOG

  MixW 
  TH QUI4 M)9Nd3/ANjV (UT$ExLZY UG
  THE QUICK BRmWN 1OX JUMPS OVER THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
  THE QUIK BROWN F9XFJUmPS VER THE LAZY DOG

  Multipsk 
  YhlU+ O~^ FlX JUiPSkOVER THE LAZY DOG
  THE QUICK{BOovFV!D.M]y5xVr| +v75UX7ØOpL{
  z]p?Bx~i6GzV$cSNVDcTH: LØZY DOG]mOT*

  _

  Test #2

  MT63 Terminal
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG


  MixW
  THF QUIaK BRORNdFOX J$MPS ?[7@ TWE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG

  Multipsk
  THE QUICK BROWN FOX JM8; O5Es HE LAZY DG
  THe*QICK BROWN F+X JUMPS OVER THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG

  __

  Test #3

  IZ8BLY MT63 TERMINAL
  RON FOX JUMPS OVER THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG

  MIXW
  HE QUIAn BROWtF?X:J+MPS v)rR TE L/ZY DOG
  THE QUICK BRKWN FOX JUMPS OVER THE LAZY DOG
  THE QUICK BRO9  FOX JUMPS OVER THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG

  MULTIPSK
  $Xiu(L Kka?SO?m)#-ap^jtOu{+^d4,-`Ø$P{8YAZY O)
  ,njl'KuBRja _J(/S VØRU!H5N(1=YDOG
  THE QUIkK B}O9g OY4JUMPS OVER THE LAZY DOG
  THE QUICK BROWN FOX JUMPS OVER THE LAZYØDOG

Re: [digitalradio] MT63 -- Mutlipsk, IZ8BLY, MixW

2008-09-26 Thread David 
Hi Tony.have you tried fldigi...it is available from
http://w1hkj.com   in both Windows XP and Vista as well as Linux.
it has MT63 500,1000 and 2000

73 David VK4BDJ



Tony wrote:

 All,

 There seems to be some difference between Mutlipsk, MixW and IZ8BLY's 
 software when it comes to decoding MT63. I ran all three programs 
 simultaneously with a path simulator in line and the SNR set above the 
 decode threshold.
  
 The results were the same whether I ran the programs one at a time or 
 simultaneously. Not sure why this is; would appreciate it if someone 
 can shed some light on this. I plan to run each program on-the-air to 
 see if the results change.
  
 Tony, K2MO
  
  
  
 Test #1: SNR -6db selective fading 
 Test #2: SNR -3db selective fading 
 Test #3: SNR -3db selective fading / lightning static
  

 Test #1

 IZ8BLY MT63 Terminal
 TH QUICK BRAOWN FOX JUOPS OVER THE LAZY [OG
 THE QUICK BROWN FOX JUMPSOVER THE LAZY DOG
 THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
 THE QUICK BROWNFOX JUMPS OVER THE LAZY DOG

 MixW
 TH QUI4 M)9Nd3/ANjV (UT$ExLZY UG
 THE QUICK BRmWN 1OX JUMPS OVER THE LAZY DOG
 THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
 THE QUIK BROWN F9XFJUmPS VER THE LAZY DOG

 Multipsk
 YhlU+ O~^ FlX JUiPSkOVER THE LAZY DOG
 THE QUICK{BOovFV!D.M]y5xVr| +v75UX7ØOpL{
 z]p?Bx~i6GzV$cSNVDcTH: LØZY DOG]mOT*

 _

 Test #2

 MT63 Terminal
 THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
 THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
 THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
 THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG


 MixW
 THF QUIaK BRORNdFOX J$MPS ?[7@ TWE LAZY DOG
 THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
 THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
 THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG

 Multipsk
 THE QUICK BROWN FOX JM8; O5Es HE LAZY DG
 THe*QICK BROWN F+X JUMPS OVER THE LAZY DOG
 THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
 THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG

 __

 Test #3

 IZ8BLY MT63 TERMINAL
 RON FOX JUMPS OVER THE LAZY DOG
 THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
 THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG
 THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG

 MIXW
 HE QUIAn BROWtF?X:J+MPS v)rR TE L/ZY DOG
 THE QUICK BRKWN FOX JUMPS OVER THE LAZY DOG
 THE QUICK BRO9  FOX JUMPS OVER THE LAZY DOG
 THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG

 MULTIPSK
 $Xiu(L Kka?SO?m)#-ap^jtOu{+^d4,-`Ø$P{8YAZY O)
 ,njl'KuBRja _J(/S VØRU!H5N(1=YDOG
 THE QUIkK B}O9g OY4JUMPS OVER THE LAZY DOG
 THE QUICK BROWN FOX JUMPS OVER THE LAZYØDOG

Re: [digitalradio] MT63 -- Mutlipsk, IZ8BLY, MixW

2008-09-26 Thread Rick W 
It would also be very interesting to see if the improved MFSK modes in 
fldigi works better than in other software, especially when affected by 
lightning static. My informal tests seemed to suggest not much 
difference, however, if there was any difference, it might suggest that 
Multipsk was ever so slightly better.

When I have done some crude comparisons with actual off air tests 
between different programs, there is usually not a lot of difference but 
sometimes there may be slight variations where in some modes there will 
certain characters that are correctly displayed in one program, yet 
other characters are correct in the other program. Thus it is often a 
wash (no significant total difference). It did seem that Multipsk had 
the edge in some of my testing and when I mentioned this to an on the 
air contact, the other ham was adamant that his testing overwhelmingly 
showed that HRD/DM780 was the best by far. Sound card calibration 
differences perhaps?

73,

Rick, KV9U



David wrote:
 Hi Tony.have you tried fldigi...it is available from
 http://w1hkj.com   in both Windows XP and Vista as well as Linux.
 it has MT63 500,1000 and 2000

 73 David VK4BDJ

[digitalradio] MT63 -- Mutlipsk, IZ8BLY, MixW/Olivia

2008-09-26 Thread Andrew O'Brien 
I have NO clue about this but... Simon Brown shared some interesting
findings about his experience  in programming Olivia in to DM780.
Some of the  existing applications that have  Olivia in them did not
entirely implement Olivia in a manner than Simon thought was
consistent with Pavel's original specifications.  So, I take from this
,and now Tony's findings, that unlike PSK31 that mostly utilize the
same 'core, other modes my well require comparison tests to determine
which is consistently better.  Simon's observation were just casual
comments to me in a private Skype call one day, so I will not give
further details.


Andy K3UK


On Fri, Sep 26, 2008 at 9:56 PM, Rick W [EMAIL PROTECTED] wrote:
 It would also be very interesting to see if the improved MFSK modes in
 fldigi works better than in other software, especially when affected by
 lightning static. My informal tests seemed to suggest not much
 difference, however, if there was any difference, it might suggest that
 Multipsk was ever so slightly better.

 When I have done some crude comparisons with actual off air tests
 between different programs, there is usually not a lot of difference but
 sometimes there may be slight variations where in some modes there will
 certain characters that are correctly displayed in one program, yet
 other characters are correct in the other program. Thus it is often a
 wash (no significant total difference). It did seem that Multipsk had
 the edge in some of my testing and when I mentioned this to an on the
 air contact, the other ham was adamant that his testing overwhelmingly
 showed that HRD/DM780 was the best by far. Sound card calibration
 differences perhaps?

 73,

 Rick, KV9U

 Da