>> Your calculator gives no indication of diffraction and multipath... which is >> often larger issues with licensed gear than rain fading.
>Currently there is just one "Path Loss" value which takes into account >multipath and diffraction. Would you like to see it displayed >separately? Matt, The PDF that prints out only lists link availability due to rain. If diffraction and multipath were considered, that path profile I sent to the list would show a 0% reliability... It would be nice if they were separate line items either way... so you can tell if your issue is multipath/diffraction related or rain fade related. Daniel White 3-dB Networks http://www.3dbnetworks.com -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Matt Hardy Sent: Wednesday, December 02, 2009 3:18 PM To: WISPA General List Subject: Re: [WISPA] 20 mile link On Wed, 2009-12-02 at 14:35 -0700, 3-dB Networks wrote: > I must have missed the day Ligowave announced 11GHz can go through mountains > :-) > LOL... most 11GHz can't, only LigoWave. ;) We'll look into this and see what's going on with this link. > Your calculator gives no indication of diffraction and multipath... which is > often larger issues with licensed gear than rain fading. Currently there is just one "Path Loss" value which takes into account multipath and diffraction. Would you like to see it displayed separately? > > I'd also question you using the QPSK transmit power and receive sensitivity > as the default values when everyone is interested in the "320Mbps" > throughput, which is considerably less power and a much higher receive level > required. This is a good point, we debated about this but for the first release we decided to list the default values for "making the link work", not necessarily the highest performance. We're thinking of ways to make this more clear... maybe adding an option for modulation/speed along with radio model. > > Constructive criticism... this is one of the better manufacturer calculators > out there. Thanks, we really do appreciate it :) -Matt ---------------------------------------------------------------------------- ---- WISPA Wants You! Join today! http://signup.wispa.org/ ---------------------------------------------------------------------------- ---- WISPA Wireless List: [email protected] Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -------------------------------------------------------------------------------- WISPA Wants You! Join today! http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: [email protected] Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
