[Ronja] What is holding back 100 mbps

[CD930]

Sorry...no, maybe later. But...TX,RX is MAXIM chipset, mediaconvertor MARVELL 1108  (before used Micro-Linear), laser is 870nm/10mW and photodiode is PDB-C102.
Tested (tx lens 11cm, rx fresnel lens 20cm) on 2500m. RSSI go to AD and Atmel CPU (LCD and RS232c).
M.

  ----- Original Message ----- 
  From: Deepak Mishra 
  To: Twibright Ronja 
  Sent: Thursday, February 21, 2008 9:48 AM
  Subject: Re: [Ronja] What is holding back 100 mbps


  Hi CD930,
  Sure dont release the PCB, but you could give us suggestions on improving the RONJA design to 100 Mbps.
  You could point us in the right direction, like the modulation technique to use, coding technique, or LED used ,or lasers, other pitfalls you encountered ?
  Would you like to support a "free" cause ?

  Regards,
  Deepak


  On 21/02/2008, CD930 <cd930 na centrum.cz> wrote:
    Hi Vladimir.
    Sorry, this development was for one firm from our city.
    I must not publish circuit PCB  :(
    But....some ideas i am here publish along the years.

    In future looking on 1Gpbs..... avalanche photodiode with 200V dc :)))
    roung again  toy gadget.

    Martin





    ----- Original Message -----
    From: "Vladimir Obradovic" <lepiaf na bgwireless.net>
    To: "ronja-request na lists.pointless.net" <ronja na lists.pointless.net>
    Sent: Thursday, February 21, 2008 1:35 AM
    Subject: Re: [Ronja] What is holding back 100 mbps


    >

    >> From: "CD930" <cd930 na centrum.cz>
    >> I tested on MAXIM and MARVELL chip-set....
    >> http://www.youtube.com/watch?v=9h3hDm32kv4
    >> http://www.youtube.com/watch?v=YcjaJhMHcNk
    >
    >> TX can by IR-LED, but with short peak to 1ns......
    >> http://www.roithner-laser.com/LED_MID_IR.htm    or
    >> http://www.roithner-laser.com/LED_HP_single_chip.html
    >
    >> I am after tested go to laser diode, it is simply.
    >> Martin
    >
    > Nice demo Martin, is there some chance that documentation, tips or
    > howtos be available about this project some time in future? Any plans
    > for some kind of open hardware licence like Ronja is, or it will be
    > yet another of those projects that inherit Ronja's ideas/hw, show some
    > good
    > stuff and then go into some factory for big bucks only :) ? No wonder
    > why Cl always gets upset when ppl start asking about 100mbps or xtra
    > range versions :)
    >
    > cya
    > LePiaf
    >
    >
    > --
    > Twibright Ronja mailing list http://ronja.twibright.com
    > Ronja na lists.pointless.net
    > http://pointless.net/mailman/listinfo/ronja
    >
    >


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