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Author Topic: cw decoder  (Read 2909 times)
KA0SMD
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Posts: 1




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« on: May 05, 2013, 05:22:57 PM »

what is a good cw decoder software that i can use to send and receive cw on my computer
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K3DCW
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Posts: 189




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« Reply #1 on: May 05, 2013, 05:58:15 PM »

Personally, for copy and send, I prefer MRP (http://www.polar-electric.com/Morse/MRP40-EN/).  I believe that it has just about the best CW decoder around, and it can be used to send as well. 

Fldigi works pretty well and does a lot of digital modes as well (http://www.w1hkj.com/index.htm). DM780, MultiPSK and other digital mode software can also do CW (send and receive) with varying levels of accuracy.

73

Dave
K3DCW
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W5CPT
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Posts: 557




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« Reply #2 on: May 06, 2013, 05:49:15 AM »

CWGet is a great decoder BUT it works best on machine code. That is code sent by a computer or an automated sending system such as a keyboard keyer or a memory keyer.  It, and most cw readers do not do well with cw sent by hand unless the sender is REALLY good.  I use CWGet to copy the DXPeditions when they run 35 - 40 WPM.  I use a memory keyboard keyer (MFJ-495) to send when I have to send faster than I can with a paddle.

It can be downloaded and used for free but if you want to be able to save your set up it costs about $35 and is money well spent in my opinion.

Clint - W5CPT -
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WM9I
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« Reply #3 on: May 06, 2013, 02:18:23 PM »

RR on CWGet and other decoders working best on machine generated code.  I use DM780.  I got CWGet and did a side-by-side with DM780.  Both were comparable.  Since I use HRD6, I am sticking with DM780 for the interface aspects.  But I think it is a user preference between them.

I use the macros in DM780 for DXpeditions, also, with a SignaLink interface to my FT-990 key input.  Works great!

I haven't tried MRP, but I think I will check it out! 

73 de Joe, WM9I
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KD8TZC
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Posts: 67




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« Reply #4 on: May 08, 2013, 05:37:50 AM »

Is DM780 included with HRD or is there someplace that you can get it separately?
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John - KD8TZC
AG1LE
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Posts: 124


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« Reply #5 on: May 10, 2013, 06:33:53 PM »

what is a good cw decoder software that i can use to send and receive cw on my computer

I recommend that you try FLDIGI. It is free software and has very active and great support forum  http://groups.yahoo.com/group/linuxham/ that provides help. You can download it from http://www.w1hkj.com/download.html.

I have been working on improving the CW decoder part of FLDIGI. My original focus was to improve decoder performance in presence of noise - see http://ag1le.blogspot.com/2012/05/fldigi-adding-matched-filter-feature-to.html. With great support of Dave W1HKJ and linuxham forum members these features are now in the current release.

My current work is focused on improving how to deal with large variance in timing, especially with hams using straight key- see http://ag1le.blogspot.com/2013/01/towards-bayesian-morse-decoder.html and http://ag1le.blogspot.com/2013/02/probabilistic-neural-network-classifier.html.

I would be interested in your feedback to improve the CW decoder even further.

73
Mauri AG1LE
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AC4RD
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Posts: 1236




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« Reply #6 on: May 11, 2013, 04:40:51 AM »

I recommend that you try FLDIGI. It is free software and has very active and great support forum  ...

Mauri, you're right!  And another great thing about FLDIGI is that it is available for both Windows and Linux.  With both types of machines around the shack, it's nice to have software that will run on either.

I've been using FLDIGI for a year or so, for RTTY and PSK.  I've been very pleased with it--lots of useful options, easy to set up and use, and it does everything I want.   A while back I noticed I could use the waterfall as a sort of spectrum scope--very handy for CW DXpeditions, since you can see (up to 1.5khz or so) what station the DX is answering and drop your own next call near to that one.  And it's handy for zero-beating CW if you have lousy ears, too.  :-)

Since doing that, I've also been using FLDIGI while operating CW, and I've been impressed at how well it follows most CW.  I mostly use my ears, but FLDIGI regularly catches details that I miss, when I am working at near my maximum speed.  I might miss a guy's name or the other guy's serial number in a contest, but FLDIGI often catches it when I didn't.  That's nice!

So another "thumbs up" for FLDIGI.  :-)  73!   -ken
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N0IU
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« Reply #7 on: May 11, 2013, 06:10:03 AM »

Is DM780 included with HRD or is there someplace that you can get it separately?
DM780 is included with HRD. The free version is still available (for now!)

http://www.hrdsoftwarellc.com/downloads/default.html

They no longer officially support the product, but there are plenty of other places where you can get help setting it up if you need it.
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