Transmission Line Modelling Software - Page 19

Keriwena · 3rd November 2012, 09:22 AM

Cool stuff, Pete. Thanks!

Mosquito · 3rd November 2012, 03:03 PM

This software is an invaluable resource, and It's almost incredible to have it for free.
Don't know if its possible, after 181 posts, but I think it deserves a more appropriate forum, like "software tools"
Thus, many more people will be aware of it
With respect and gratitude
J.

Keriwena · 4th November 2012, 05:19 AM

Speaking of awareness, there's a thread over on PR's Techtalk that just got bumped:

New, free transmission line modeling software

You may want to jump in and say "Hi!"

pinkmouse · 4th November 2012, 07:23 AM

Quote:

Originally Posted by Mosquito

Don't know if its possible, after 181 posts, but I think it deserves a more appropriate forum, like "software tools"
Thus, many more people will be aware of it

Yikes, I've been popping in here and never noticed. How remiss of me.

Ah-hem!

Thread moved to appropriate area.

just a guy · 12:16 PM

Quote:

Originally Posted by pinkmouse

Yikes, I've been popping in here and never noticed. How remiss of me.

Ah-hem!

Thread moved to appropriate area.

Please put this thread back where it used to be, and for the love of (whatever you love) please don't move the Hornresp thread. This forum has way too many obscure little dark corners. I've never been in this section of the forum and you can see from the amount of views and responses to threads not many people come here.

PB2 · 5th November 2012, 12:23 AM

Quote:

Originally Posted by schmeet

re the stuffing model, I'll explain how it works later but I'm really struggling with that. It seems to be OK at low freq but not at high. I think I need to do it emperically.

Thanks for comments and suggestions guys, keep em coming!

It has been a while since I looked at MJK's work but I think he based his damping model on measurements that he made at different stuffing densities. The data is probably on his web site so that you could also use it as a sanity check if you can find it.

PB2 · 5th November 2012, 03:06 PM

Quote:

Originally Posted by PB2

It has been a while since I looked at MJK's work but I think he based his damping model on measurements that he made at different stuffing densities. The data is probably on his web site so that you could also use it as a sanity check if you can find it.

I'd think that at least a linear frequency dependency would be a start with the slope as an input parameter.

CharlieLaub · 5th November 2012, 03:54 PM

so far I have only been able to get this software to throw an exception and crash...

schmeet · 04:11 PM

Quote:

Originally Posted by CharlieLaub

so far I have only been able to get this software to throw an exception and crash...

If you provide even just some amount of detail I may be able to help.

Keriwena · 6th November 2012, 03:14 PM

In no particular order, a bunch of things that have crossed my mind while working with the program:

Occasionally I get a window with this error message when opening the program: 'Unhandled exception - Invoke or BeginInvoke cannot be called on a control until the window handle has been created.' (I can PM you all the details if it would help.)

It would be handy if the 'total length' units matched the 'length' units.

Can the program remember measurement unit settings in the .tlp file?

I suspect only my seamstress uses "yards".

For the red lines in the geometry window, could you use a different colour for 'open'?

Is it possible to get a readout of the angle of the sides for aligning multiple elements? Once something is 'split' it's difficult to alter the cross section.

Speaking of 'split', while it's very helpful for applying different amounts of damping to various portions of the line, if there was another version that added an element "above" the '0' element, that would make placing the driver part-way down the line easier. I guess that would be a split that adds a branch.

Can the main window remember its position? And can a second copy use the same position instead of tiling? This would allow opening a file, playing with it, then opening a second copy of the program and loading the original file for comparison by switching windows with the task bar control. (I do this all the time with SPICE.)

Could you add 5's on the frequency scale?

3rd November 2012, 03:03 PM	#182
Mosquito diyAudio Member Join Date: Sep 2009 Location: Santa Fe, Argentina	This software is an invaluable resource, and It's almost incredible to have it for free. Don't know if its possible, after 181 posts, but I think it deserves a more appropriate forum, like "software tools" Thus, many more people will be aware of it With respect and gratitude J. __________________ I know how to walk over grapes

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3rd November 2012, 09:22 AM	#181
Keriwena diyAudio Member Join Date: Feb 2010 Location: in half space	Cool stuff, Pete. Thanks!

4th November 2012, 05:19 AM	#183
Keriwena diyAudio Member Join Date: Feb 2010 Location: in half space	Speaking of awareness, there's a thread over on PR's Techtalk that just got bumped: New, free transmission line modeling software You may want to jump in and say "Hi!"

5th November 2012, 03:54 PM	#188
CharlieLaub diyAudio Member Join Date: Mar 2007 Location: California	so far I have only been able to get this software to throw an exception and crash...

6th November 2012, 03:14 PM	#190
Keriwena diyAudio Member Join Date: Feb 2010 Location: in half space	In no particular order, a bunch of things that have crossed my mind while working with the program: Occasionally I get a window with this error message when opening the program: 'Unhandled exception - Invoke or BeginInvoke cannot be called on a control until the window handle has been created.' (I can PM you all the details if it would help.) It would be handy if the 'total length' units matched the 'length' units. Can the program remember measurement unit settings in the .tlp file? I suspect only my seamstress uses "yards". For the red lines in the geometry window, could you use a different colour for 'open'? Is it possible to get a readout of the angle of the sides for aligning multiple elements? Once something is 'split' it's difficult to alter the cross section. Speaking of 'split', while it's very helpful for applying different amounts of damping to various portions of the line, if there was another version that added an element "above" the '0' element, that would make placing the driver part-way down the line easier. I guess that would be a split that adds a branch. Can the main window remember its position? And can a second copy use the same position instead of tiling? This would allow opening a file, playing with it, then opening a second copy of the program and loading the original file for comparison by switching windows with the task bar control. (I do this all the time with SPICE.) Could you add 5's on the frequency scale?