From vjantovan at gmail.com  Fri Apr  3 12:34:30 2009
From: vjantovan at gmail.com (victor jantovan)
Date: Fri, 3 Apr 2009 14:34:30 +0300
Subject: [Ronja] Ronja Tetrapolis
Message-ID: <e2c1dab80904030434x1e4eadd5obcf56f0f196b9da4@mail.gmail.com>

Hi,can u help me with full electronic circuit for the: Twister2, Ronja 10M
Reciver and Ronja 10M Transmitter.
I would like to built this modules but i want to understand how they work.
(eventually if u have links that can help to understand this devices)
Ths
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From twibright at hispeed.ch  Sat Apr  4 11:02:04 2009
From: twibright at hispeed.ch (Karel Kulhavy)
Date: Sat, 4 Apr 2009 12:02:04 +0200
Subject: [Ronja] Ronja Tetrapolis
Message-ID: <23472738.1238839324855.JavaMail.root@viefep15>

Hi Victor, 

---- victor jantovan <vjantovan at gmail.com> schrieb:
> Hi,can u help me with full electronic circuit for the: Twister2, Ronja 10M
> Reciver and Ronja 10M Transmitter.

http://ronja.twibright.com/schematics/
http://ronja.twibright.com/technotes/how.php

Regards,

Karel
> I would like to built this modules but i want to understand how they work.
> (eventually if u have links that can help to understand this devices)
> Ths



From twibright at hispeed.ch  Wed Apr  8 10:08:56 2009
From: twibright at hispeed.ch (Karel Kulhavy)
Date: Wed, 8 Apr 2009 11:08:56 +0200
Subject: [Ronja] Better Ronja Chat
Message-ID: <30040201.1239181740589.JavaMail.root@viefep11.chello.at>

Hello

I have changed the Ronja IRC page so now you just click optionally fill in your nickname
and are on the Ronja channel. No need to fill in server and channel anymore.

http://ronja.twibright.com/irc.php

Regards,

Karel


From twibright at hispeed.ch  Wed Apr  8 10:08:42 2009
From: twibright at hispeed.ch (Karel Kulhavy)
Date: Wed, 8 Apr 2009 11:08:42 +0200
Subject: [Ronja] Better Ronja Chat
Message-ID: <10784756.1239181733731.JavaMail.root@viefep11.chello.at>

Hello

I have changed the Ronja IRC page so now you just click optionally fill in your nickname
and are on the Ronja channel. No need to fill in server and channel anymore.

http://ronja.twibright.com/irc.php

Regards,

Karel


From mms at max-sievers.name  Wed Apr  8 13:41:16 2009
From: mms at max-sievers.name (Max Moritz Sievers)
Date: Wed, 8 Apr 2009 14:41:16 +0200
Subject: [Ronja] Where is the Wiki?
Message-ID: <200904081441.16541.mms@max-sievers.name>

Hello,

the link to the Wiki is broken. Do we have a Wiki?

-- 
Regards,
Max Moritz Sievers


From twibright at hispeed.ch  Wed Apr  8 14:29:55 2009
From: twibright at hispeed.ch (Karel Kulhavy)
Date: Wed, 8 Apr 2009 15:29:55 +0200
Subject: [Ronja] Where is the Wiki?
Message-ID: <6051166.1239197417814.JavaMail.root@viefep11.chello.at>

---- Max Moritz Sievers <mms at max-sievers.name> schrieb:
> Hello,
> 
> the link to the Wiki is broken. Do we have a Wiki?

No that was dismantled. I have to remove the deadlink. Thanks,

Karel
> 
> -- 
> Regards,
> Max Moritz Sievers
> 
> _______________________________________________
> Ronja mailing list
> Ronja at lists.pointless.net
> http://pointless.net/mailman/listinfo/ronja



From twibright at hispeed.ch  Mon Apr 13 08:35:23 2009
From: twibright at hispeed.ch (Karel Kulhavy)
Date: Mon, 13 Apr 2009 9:35:23 +0200
Subject: [Ronja] SFH 203 SPICE model
Message-ID: <16429689.1239608123774.JavaMail.root@viefep12>

Hello

I have created SFH203 SPICE model from measurements:
http://ronja.twibright.com/sim/models/sfh203.lib

Karel


From ladmanj at volny.cz  Mon Apr 13 09:57:01 2009
From: ladmanj at volny.cz (Jakub Ladman)
Date: Mon, 13 Apr 2009 10:57:01 +0200
Subject: [Ronja] SFH 203 SPICE model
In-Reply-To: <16429689.1239608123774.JavaMail.root@viefep12>
References: <16429689.1239608123774.JavaMail.root@viefep12>
Message-ID: <200904131057.02138.ladmanj@volny.cz>

Sorry, i am lazy to write this banalities in english.

Karle m?? tam p?eklep:
(c) undel GFDL Karel 'Clock' Kulhavy

Nav?c nev?m jestli ten model k n??emu je, kdy? s?m nev?? jestli je to odm??en? 
dob?e.

U? jsem ty diody v?c ne? dva roky nesh?n?l, ale vypad? to ?e ani infineon ani 
vishay se k t?m na ronje pou??van?m typ?m nehl?s?, mysl?m si ?e by bylo na 
?ase vybrat n?jakou perspektivn? n?hradu.

Jestli teda je?t? n?kdo ronju stav?.

Jakub Ladman

Dne Monday 13 of April 2009 09:35:23 Karel Kulhavy napsal(a):
> Hello
>
> I have created SFH203 SPICE model from measurements:
> http://ronja.twibright.com/sim/models/sfh203.lib
>
> Karel
>
> _______________________________________________
> Ronja mailing list
> Ronja at lists.pointless.net
> http://pointless.net/mailman/listinfo/ronja




From mohammadaj at gmail.com  Tue Apr 21 01:10:54 2009
From: mohammadaj at gmail.com (mohamad al-jamal)
Date: Tue, 21 Apr 2009 03:10:54 +0300
Subject: [Ronja] is it possible to implement RONJA with a laser diode
	instead of a normal visible light ?
Message-ID: <9061a4380904201710u1cbc15f1gef9e70c55996179@mail.gmail.com>

Dears

I'm planing to install RONJA for internal networking between two apartments
, but for my application i need a B.W more than 10 Mbps . from my readings ,
i understand that this is possible if a laser diode is used instead of a
normal visible light diode .. my question is here : is this true ? and what
changes do i need to do to the circuitry ?

thanks in advance .
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From russ at coldstonelabs.org  Tue Apr 21 07:39:10 2009
From: russ at coldstonelabs.org (Russell Valentine)
Date: Tue, 21 Apr 2009 01:39:10 -0500
Subject: [Ronja] is it possible to implement RONJA with a laser diode
 instead of a normal visible light ?
In-Reply-To: <9061a4380904201710u1cbc15f1gef9e70c55996179@mail.gmail.com>
References: <9061a4380904201710u1cbc15f1gef9e70c55996179@mail.gmail.com>
Message-ID: <49ED6A0E.2050700@coldstonelabs.org>

mohamad al-jamal,

You would have to re-encode the data instead of pass it through like the 
RONJA does, so you would have to redesign the whole thing pretty much. 
Since 10BASE-T uses hi lo (Manchester), and 100BASE-TX had hi, zero, lo 
(MLT-3). So you would need some electronics to take MLT-3 to NRZ then on 
the other side NRZ back to MLT-3.

Of course you would also need to redo the electronics that drive the 
LASER instead of the LED.

I wrote a paper of sorts that goes through some of the encoding and 
LASER vs LED. You can read it:
http://coldstonelabs.org/files/ronja.pdf

I don't promise everything is correct in the paper, if you find a 
problem let me know. I mainly put that together from looking up 
different things myself. Particularly see the section on signals.

I believe a billion other people asked about this same thing on the 
mailing list before. I'm sure someone wrote a better response that is 
located in the archives.


Russell Valentine

mohamad al-jamal wrote:
> Dears
> 
> I'm planing to install RONJA for internal networking between two apartments
> , but for my application i need a B.W more than 10 Mbps . from my readings ,
> i understand that this is possible if a laser diode is used instead of a
> normal visible light diode .. my question is here : is this true ? and what
> changes do i need to do to the circuitry ?
> 
> thanks in advance .
> 
> 



From dnevistic at yahoo.com  Wed Apr 22 17:32:05 2009
From: dnevistic at yahoo.com (Daniel Nevistic)
Date: Wed, 22 Apr 2009 09:32:05 -0700 (PDT)
Subject: [Ronja] SFH 203 SPICE model
Message-ID: <834565.13723.qm@web111106.mail.gq1.yahoo.com>

Karel---

I noticed in your comments in the .LIB that you conjectured that the capacitance of the body would change as the length of the leads varied.? 

I would think that this is negligible and that the increase in inductance introduced by the leads was much more significant.

What do you think?

Daniel T. Nevistic
U.S.A.

--- On Mon, 4/13/09, Karel Kulhavy <twibright at hispeed.ch> wrote:

From: Karel Kulhavy <twibright at hispeed.ch>
Subject: [Ronja] SFH 203 SPICE model
To: ronja at lists.pointless.net
Date: Monday, April 13, 2009, 7:35 AM

Hello

I have created SFH203 SPICE model from measurements:
http://ronja.twibright.com/sim/models/sfh203.lib

Karel

_______________________________________________
Ronja mailing list
Ronja at lists.pointless.net
http://pointless.net/mailman/listinfo/ronja



      
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From twibright at hispeed.ch  Sat Apr 25 10:39:55 2009
From: twibright at hispeed.ch (Karel Kulhavy)
Date: Sat, 25 Apr 2009 11:39:55 +0200
Subject: [Ronja] SFH 203 SPICE model
Message-ID: <2263524.1240652407288.JavaMail.root@viefep14>

---- Daniel Nevistic <dnevistic at yahoo.com> schrieb:
> Karel---
> 
> I noticed in your comments in the .LIB that you conjectured that the capacitance of the body would change as the length of the leads varied.  
> 
> I would think that this is negligible and that the increase in inductance introduced by the leads was much more significant.
> 
> What do you think?

The inductance is not a concern in the circuit.

Karel