Dear Andrea,
Normally in all Wireless products, there is the Wireless chipset like atheros, and there is the PA, PA is the power amplifier that take low signal from the wireless chipset and convert it to higher gain (Like SiGe for example) As I understand, the Atheros chipset have internal clock with internal PLL, where the driver can change the setting within the supported limit of the hardware PLL used. on the other hand you need the PA to support that frequency range as well. Currently there is two options to change the frequency: 1)Make sure the PLL and the PA support it, and change the driver to handle it. 2)Use a frequency convertor just after the Atheros and before the PA, with the right PA as well. (XR9 example from UBNT) I work with WiMAX before and it was similar to Wifi, so you need to check your hardware chipsets used, including the PA and then decide on which option you can take. I am new with Atheros I think people will correct me if I am wrong, but I think Atheros handle from 4.9 to 6GHZ only, and it can't handle frequencies below this without using the frequency conversion. Louay Benoit PAPILLAULT wrote: > Andrea Tarasconi a écrit : > | Dear Sir/Madam, > | > | even if we have an official TLA with Atheros, we cannot have the > | needed support about few RF Register usage, so we are looking for > | somebody giving us the needed support. > | > | What support we are looking for the Atheros AR5414 > | ======================================= > | The support we need to sombody very well knowing the Atheros chip-set > | are both related to the RF Registers (not documented): > | > | - Operating in the 802.11a mode, how to move the base systhetized > | frequency to 4600 or 4700 MHz and how to move to 5500 or 5600 MHz > | instead of the 4800 MHz default. > | > | - How to change the RF channel stepping from the standard 2.5 and 5 MHz > | stepping to a more fine 1 and 2 MHz stepping. > | > | Unfortunately there is no official documentation about and we were not > | able to guess the correct numbers to write into the RF registers because > | the structure of the RF Registers is very complex and quite completely > | not documented! > | > | Any help will be appreciated. > | > | *A reward of 5000 USD will be provided to who will be able to give us > | the two solutions (just the consultancy), otherwise a reward of 2000 USD > | will be provide to who will give us only one solution.* > | > | Please feel free to forward this email to anybody you think may be able > | to help us directly or indirectly forwarding to others. > | > | Thank you again for your cooperation. > | Kind regards, > | Andrea > | > | > | Should you have any question, please do not hesitate to contact us. > | Best regards, > | > | Dr. Andrea Tarasconi, Technical Director (CTO). > | > | Direct phone: +39 0522 9483.22 > | Mobile: +39 335 8049677 > | E-mail: [EMAIL PROTECTED] > | <mailto:[EMAIL PROTECTED]> > | > | Essentia S.p.A. ? Telecomunicazioni & Sicurezza > | > | Head Quarter: Via G.B. Vico, 29 - 42040 Cella (RE), Italy > | Phone: +39 0522 9483.11 - Fax: +39 0522 9483.33 > | Worldwide Web: www.essentia.it <http://www.essentia.it/> - E-mail: > | [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> > > Hi Andrea, > > This looks like an unusual request! What you are searching looks quite > interesting even if I won't be able to give you the answer. I just have > few questions: > > * I quickly read the atk5k source code and apparently, only the 4920 - > 6100 Mhz is supported by the PHY. Does your chipset already work at > 4800Mhz and you want to move to the 4600 - 4700 MHz band? > > * RF stepping of 1 MHz would mean that you will be able to set the > frequency to 4601, 4602, 4603 MHz, right? Or do you mean the channel > bandwidth (typical : 20Mhz, can be change to 5 or 10 MHz AFAIK) ? > > Adding the ath5k people since they might have better knowledge of this > topic. > > Regards, > Benoit > PS: Is paypal accepted to get the money? :-) _______________________________________________ ath5k-devel mailing list ath5k-devel@lists.ath5k.org https://lists.ath5k.org/mailman/listinfo/ath5k-devel -- Louay Sakka CEO LinoWave Corp 1001-101 Champlain Av L7L5Z4 Burlington On Canada Tel: 12892880060 Fax: 12892880061 Cell:12898882248 _______________________________________________ ath5k-devel mailing list ath5k-devel@lists.ath5k.org https://lists.ath5k.org/mailman/listinfo/ath5k-devel
