Even though I think you just made a typo, want to clarify so there's no misinformation
1. You don't need Class B for 18 GHz -- 2' dish is Class A 2. We're talking about 11 GHz - you can do 2.5' dish for Class A though -Charles ------------------------------------------- WiNOG Wireless Roadshows Coming to a City Near You http://www.winog.com -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Chuck McCown Sent: Monday, July 14, 2008 4:00 PM To: WISPA General List Subject: Re: [WISPA] Dragonwave antenna pattern for RM Thanks. at 18 GHz, a Class B should be fine. ----- Original Message ----- From: "Charles Wu" <[EMAIL PROTECTED]> To: "WISPA General List" <[email protected]> Sent: Monday, July 14, 2008 2:44 PM Subject: Re: [WISPA] Dragonwave antenna pattern for RM > To summarize, it details to the amount of interference you are willing to > accept on your system > > That said, for "standard" operations in Part 101, due to the fact that the > rules were written back in the early 90s for analogue microwave systems, > the interference threshold of a licensed system can be summarized as > follows (keep in mind, you can easily poke holes into my response, so bear > with this oversimplification) > > Part 101 Interference Threshold is ~40 dB BELOW the minimum threshold of > your licensed modulation > > That said...say I have a radio that as a result of operating at 64 QAM, > has a minimum receive threshold of -68 dBm > Chances are, when I build the link, I will plan for some amount of fade > margin (say 30 dB here), so my nominal receive threshold for the link > is -38 dBi > That said, when I'm talking about this 40 dB buffer, I'm talking 40 dB > below the MINIMUM threshold, so if I were to license a system in the area > on the same channel, the co-channel noise that I would be able to pick up > from you must be 40 dB BELOW -68, or ~ -108 dBm > > In this particular situation, if you were running in 11 GHz, as a result > of using a 2' dish, you may change the allowable "interferable" noise flow > from -108 (40 dB below -68) ro -78 (40 dB below -38) > > Again, in the unlicensed world, 10-15 dB above the noise floor is > considered to be pretty good -- anything above that with some level of > protection is incredible, and in the lower bands (!1 & 6 GHz) where it may > be hard to fit a system in a geographical area at a specific > interference/noise level, taking in an extra 10-20 dB of noise (when I've > got 60+ dB of fade margin) isn't too much of an issue > > -Charles > > ------------------------------------------- > WiNOG Wireless Roadshows > Coming to a City Near You > http://www.winog.com > > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On > Behalf Of Chuck McCown - 3 > Sent: Monday, July 14, 2008 1:18 PM > To: WISPA General List > Subject: Re: [WISPA] Dragonwave antenna pattern for RM > > Could you please elaborate about a Class B? This is new to me. > > ----- Original Message ----- > From: "Charles Wu" <[EMAIL PROTECTED]> > To: "WISPA General List" <[email protected]> > Sent: Monday, July 14, 2008 12:14 PM > Subject: Re: [WISPA] Dragonwave antenna pattern for RM > > >> Actually...if you're willing to accept Class B status under Part 101, you >> can even get a 2' in 11 GHz >> >> NOTE: Class B is still MILES ahead of anything unlicensed >> >> -Charles >> >> ------------------------------------------- >> WiNOG Wireless Roadshows >> Coming to a City Near You >> http://www.winog.com >> >> >> -----Original Message----- >> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On >> Behalf Of Mike Brownson >> Sent: Friday, July 11, 2008 12:31 AM >> To: WISPA General List >> Subject: Re: [WISPA] Dragonwave antenna pattern for RM >> >> Correct. Normally 4 ft is the standard. But in most areas of the >> country >> you can request an exception and go down to a 2.5 ft. It has something >> to >> do with locations near certain military installations. >> >> Mike B >> >> >> On 7/10/08 10:42 AM, "3-dB Networks" <[EMAIL PROTECTED]> wrote: >> >>> 2.5' Minimum on 11GHz >>> >>> Daniel White >>> >>> -----Original Message----- >>> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On >>> Behalf Of Brad Belton >>> Sent: Thursday, July 10, 2008 10:35 AM >>> To: [EMAIL PROTECTED]; 'WISPA General List' >>> Subject: Re: [WISPA] Dragonwave antenna pattern for RM >>> >>> Doesn't 11Ghz have a 4' minimum or was that changed? >>> >>> Last rumor I heard was you might be able to get a 3' or possibly even a >>> 2' >>> approved for 11GHz, but if it becomes a problem then you'll be forced to >>> change to an antenna that doesn't cause a problem with a tighter >>> pattern...like 4'. >>> >>> Best, >>> >>> >>> Brad >>> >>> >>> >>> -----Original Message----- >>> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On >>> Behalf Of [EMAIL PROTECTED] >>> Sent: Thursday, July 10, 2008 11:26 AM >>> To: WISPA General List >>> Subject: Re: [WISPA] Dragonwave antenna pattern for RM >>> >>> Regs are 6' minimum high performance dish at 6 GHz unless something >>> changed >>> recently. >>> >>> At 11 Ghz you should be able to get 99.99 and use the 5 Ghz to back it >>> up >>> Sent from my Verizon Wireless BlackBerry >>> >>> -----Original Message----- >>> From: "Jonathan Auer" <[EMAIL PROTECTED]> >>> >>> Date: Thu, 10 Jul 2008 11:17:07 >>> To: WISPA General List<[email protected]> >>> Subject: Re: [WISPA] Dragonwave antenna pattern for RM >>> >>> >>> Not really. The biggest I can use are 3' >>> >>> On Thu, Jul 10, 2008 at 11:14 AM, <[EMAIL PROTECTED]> wrote: >>>> Do you have facilities to mount 6' antennas at any real height?? >>>> >>>> You may be able to get away with 11 GHz... >>>> >>>> Bob >>>> Sent from my Verizon Wireless BlackBerry >>>> >>>> -----Original Message----- >>>> From: "Jonathan Auer" <[EMAIL PROTECTED]> >>>> >>>> Date: Thu, 10 Jul 2008 10:57:06 >>>> To: WISPA General List<[email protected]> >>>> Subject: [WISPA] Dragonwave antenna pattern for RM >>>> >>>> >>>> Does anyone have a Radio Mobile antenna pattern for the Dragonwave >>>> Horizon Compact? >>>> Is there a better tool/method for figuring out if the 6+Ghz licensed >>>> freqs are appropriate for a link? >>>> >>>> I could be barking up the wrong tree with this... Are the higher freq >>>> licensed links appropriate for ~15-25 mile links? >>>> At the moment I'm using PTP600s and AN-50es to do the job but I can't >>>> get the speed I'd like because of noise floor. >>>> >>>> >>>> >>> ---------------------------------------------------------------------------- >>> ---- >>>> 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/ >>>> >>> >>> >>> ---------------------------------------------------------------------------- >>> ---- >>> 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/ >>> >>> >>> >>> ---------------------------------------------------------------------------- >>> ---- >>> 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/ >>> >> >> -- >> Mike Brownson >> Hutton Communications >> 5015 Paris St >> Denver, CO 80239 >> 303-373-3170 >> >> This email and any files transmitted with it are confidential and >> intended >> solely for the use of the individual or entity to whom they are >> addressed. >> If you have received this email in error please notify the system >> manager. >> This message contains confidential information and is intended only for >> the individual named. If you are not the named addressee you should not >> disseminate, distribute or copy this e-mail. >> >> >> >> >> -------------------------------------------------------------------------------- >> 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/ >> > > > > -------------------------------------------------------------------------------- > 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/ > -------------------------------------------------------------------------------- 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/
