Orlando Andico wrote: >On Wed, 29 May 2002, Debian User wrote: >.. > >>There is supposed to be a restriction on the use on antennas on this >>cards. But i dont know if the ntc can actually get you for that. Like >>using a big antenna on you celfone is supposed to be illegel. >> > >Ahh. The ITU/FCC regulation on unlicensed 2.4GHz ISM band >requires/mandates that the ERP (effective radiated power) does not exceed >27dBm. > >The Linksys WAP-11 and similar devices with the Intersel Prism2 chipset >(including the Cisco 340/350) max out at 20dBm (100mW) power output. So, >you cannot attach an antenna with a gain greater than 7dBi in countries >which follow the ITU/FCC regime. > >HOWEVER: NTC in their crappy wisdom has decreed that 2.4GHz is REGULATED >in this country. So: in Meralco franchise area you cannot use it AT ALL. >But outside the Meralco area, apply for a license as normal (it's about >PHP 20K/year for a single point-to-point link). AND, because you have a >license, you can flout the ERP limit. > >Back to back Cisco 340's (at 100mW), with back to back Cisco 18dBi solid >parabolics, can do 37km air distance at 1Mbps (this is the experience of >people we talked to in Iloilo). No boosters. > >If you want >50km gain, buy a line booster to boost output to 1W RF >(instead of just 100mW). The Hyperlink Tech poletop line booster with AGC, >integral lightning protection goes for about $600. > > >--- >Orlando Andico <[EMAIL PROTECTED]> >Mosaic Communications, Inc. > >_ >Philippine Linux Users Group. Web site and archives at http://plug.linux.org.ph >To leave: send "unsubscribe" in the body to [EMAIL PROTECTED] > >To subscribe to the Linux Newbies' List: send "subscribe" in the body to >[EMAIL PROTECTED] > > Do we have an alternative? Something like hiperlan? The concept is seductive.
_ Philippine Linux Users Group. Web site and archives at http://plug.linux.org.ph To leave: send "unsubscribe" in the body to [EMAIL PROTECTED] To subscribe to the Linux Newbies' List: send "subscribe" in the body to [EMAIL PROTECTED]
