Re: [WISPA] Theoretical TVWS coverage

2008-11-06 Thread Mike Hammett
http://www.ics-il.com -- From: Brian Webster [EMAIL PROTECTED] Sent: Wednesday, November 05, 2008 3:20 PM To: Tom DeReggi [EMAIL PROTECTED]; WISPA General List wireless@wispa.org Subject: Re: [WISPA] Theoretical TVWS coverage That's my point

[WISPA] Theoretical TVWS coverage

2008-11-05 Thread Mike Hammett
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

Re: [WISPA] Theoretical TVWS coverage

2008-11-05 Thread Brian Webster
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

Re: [WISPA] Theoretical TVWS coverage

2008-11-05 Thread Mike Hammett
] Theoretical TVWS coverage 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

Re: [WISPA] Theoretical TVWS coverage

2008-11-05 Thread Brian Webster
You, Brian Webster -Original Message- From: Mike Hammett [mailto:[EMAIL PROTECTED] Sent: Wednesday, November 05, 2008 8:29 AM To: [EMAIL PROTECTED]; WISPA General List Subject: Re: [WISPA] Theoretical TVWS coverage I chose -80 because in current operations, anything less isn't really

Re: [WISPA] Theoretical TVWS coverage

2008-11-05 Thread Marlon K. Schafer
[EMAIL PROTECTED] To: WISPA List wireless@wispa.org Sent: Wednesday, November 05, 2008 5:12 AM 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

Re: [WISPA] Theoretical TVWS coverage

2008-11-05 Thread Mike Hammett
wireless@wispa.org Subject: Re: [WISPA] Theoretical TVWS coverage Hmmm Just for fun I ran the numbers at 600mhz. 20 dB tx from the radio, 16dB tx antenna (probably not at all reasonable due to size and small 50ish* coverage) to a 10 dB cpe antenna. -80 at 50 miles! Same thing with an 8dB

Re: [WISPA] Theoretical TVWS coverage

2008-11-05 Thread jp
ap's. etc. etc. etc. Pretty cool. marlon - Original Message - From: Mike Hammett [EMAIL PROTECTED] To: WISPA List wireless@wispa.org Sent: Wednesday, November 05, 2008 5:12 AM Subject: [WISPA] Theoretical TVWS coverage Based on TV antenna, it looks like the largest gain

Re: [WISPA] Theoretical TVWS coverage

2008-11-05 Thread Chuck McCown
AM To: WISPA General List wireless@wispa.org Subject: Re: [WISPA] Theoretical TVWS coverage Hmmm Just for fun I ran the numbers at 600mhz. 20 dB tx from the radio, 16dB tx antenna (probably not at all reasonable due to size and small 50ish* coverage) to a 10 dB cpe antenna. -80 at 50

Re: [WISPA] Theoretical TVWS coverage

2008-11-05 Thread Tom DeReggi
Broadband - Original Message - From: Brian Webster [EMAIL PROTECTED] To: Mike Hammett [EMAIL PROTECTED]; WISPA General List wireless@wispa.org Sent: Wednesday, November 05, 2008 8:46 AM Subject: Re: [WISPA] Theoretical TVWS coverage Obviously we are still speculating here because the rules

Re: [WISPA] Theoretical TVWS coverage

2008-11-05 Thread Brian Webster
DeReggi [mailto:[EMAIL PROTECTED] Sent: Wednesday, November 05, 2008 3:41 PM To: [EMAIL PROTECTED]; WISPA General List Subject: Re: [WISPA] Theoretical TVWS coverage I would say that -90 should be a safe signal level to use and still have good modulation rates. I'm a little confused

Re: [WISPA] Theoretical TVWS coverage

2008-11-05 Thread Chuck McCown - 3
Yep. Thats why many folks use a lower gain for their sectors and omnis. - Original Message - From: Marlon K. Schafer [EMAIL PROTECTED] To: WISPA General List wireless@wispa.org Sent: Wednesday, November 05, 2008 8:26 PM Subject: Re: [WISPA] Theoretical TVWS coverage 16dB by 120* won't