I would imagine you will be able to have receive signals down to almost -95 or -98 dBm. Remember this should be relatively clean spectrum (and hopefully stay that way). According to Sascha the current white space devices that were in testing were supposed to receive signals 30 db below the signal required to receive a DTV signal.
Thank You, Brian Webster -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Mike Hammett Sent: Wednesday, November 05, 2008 8:12 AM To: WISPA List Subject: [WISPA] Theoretical TVWS coverage Based on TV antenna, it looks like the largest gain CPE will be around 10 dB for all but the lowest of frequencies. I just ran a Radio Mobile coverage area using a guesstimate at a white spaces system... EIRP of 20 dBm, 16 dBi sector, 10 dBi CPE, -80 dBm minimum allowed receive. The range wasn't much more than 2 miles in flat country land. With those same measurements with a 36 dBm EIRP, we have 10 miles, but terrain comes more into play here. For the extreme rural areas, this is where tower height comes into play. For everyone else, this is your foliage beater. In these areas we still need small cells for bandwidth capacity and interference rejection. Remember, the only signal levels mentioned were 40 mw for personal portable devices. Anything else is just speculation at this point. They may very well give fixed stations 4 W as they do in all other unlicensed bands. ---------- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com ---------------------------------------------------------------------------- ---- 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/
