Brian, Your numbers are about what we face here. We live in a valley, so we have AP sites that are at least 1,000 feet above the valley floor and we can simply point each antenna up or down the valley and we get enough side lobe to cover the breadth of the valley
A standard AP for us is 4 radios with 2 at 900 MHz and 2 at 2.4 GHz. We add another unit with 4 radios at 5 GHz and we have a repeater site that can really make connections and can hook people up. Total power draw is about about 0.7A from 24V or about 17W, which is critical since I use Solar Power at most of my sites. I run 2 POE cables up the tower from the batteries and use a small jumper to connect them. When I'm onsite I simply use one of the radios to connect in with. I find this the cheapest and simplest install since a switch is another failure point and requires more cabling. All towers are tied together with mesh routing and everything is purely routed. The 900 AP's use a PacWireless 9 dB yagi. With an 11 dB yagi at the customer I can get 4 miles from the side of the AP pointing direction, through a few trees on the customer site. From the front I get 25 miles with nearly clear LOS. We can have huge tree count at the 5 mile range but mostly we want a chainsaw beyond that. 900 can poke through trees but the reality is a better signal with better LOS. The 2.4 GHz AP's use a 16 dB sector. I'll add that we found out, the hard way, that we can hit them at 4 miles from behind with a 15 dB antenna at the customer. This requires perfect LOS. When we sorted out the mixed up AP antenna cables the customer signal went from -86 dB to -66 dB. Even at -86 dB they were very usable and able to attain 12 mbps under our throughput test. I'm not sure how you price your service but anybody that cannot get ADSL is really not able to apply ADSL pricing to services that can reach them. Why are you basing your price on the ADSL rate, rather than mixture of what it is costing and what it is worth. Don't gouge them, but simply point out that you do not have mega bucks and subsidies. Explain that if the customer was not more expensive to serve then ADSL would have already served them. Point out that ADSL strictly provides service to easy and cheap to service customers. You are left with the hard ones and that simply costs extra. Lonnie On 11/7/06, Brian Rohrbacher <[EMAIL PROTECTED]> wrote:
Let me add a little about what I have to work with. There are 4036 people in the township which is my main coverage area (I fork out a little, but the number are inline with these). 2,288 have access to DSL and Cable. This leaves 1748 people to go after. How many of those want broadband? I just did a quick google and the only number I saw said 30% of rural Americans have broadband. So I'll go with that for my number of who wants it. 30% is about 500 people. I guess this means my township that is 36 square miles has almost 15 subscribers per square mile that are ripe for the picking. And then add the fact that there are 2 total WISPs in this area. Cut the subs in half. I have 7 subs per square mile to go hook up. Wait, it seems like 50% of my site surveys fail due to the darn trees, at least I can still get those 3.5 subs per square mile. :) Now that I have given a little more info, do you guys still recommend sectors? Brian Brian Rohrbacher wrote: > Problem is I might only get 10-15 subs at these sites in the next > year. Lets say I can buy 10 APs. I'd rather have 10 sites with > omni's than 5 sites with 180* sectors. > At 15 subs a site I'd have 150 subs on 10 omni's at $35 a month. That > is $5250 a month. > If I sectorize 5 sites with 15 subs that is 75 subs and only $2625 > added to the monthly income. > > Back to reality. I can't afford 10 APs.....but still, I don't see > sectors as being such a great thing. What is the point of doubling > the cost of a pop for no gain of subscribers? > > Back to my question. If a guy wanted to use omni's for 900. What is > a good choice? > > Brian > Chris Cooper wrote: > >> We have a legacy 900 omni at 750' AGL. It really reaches out and touches >> remote customers, but it is visible to every other cell in the region >> and >> affects channel planning. Stick to sectors, they might be more >> expensive up >> front but long term you will have more options. >> >> c >> >> -----Original Message----- >> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] >> Behalf Of Marlon K. Schafer >> Sent: Tuesday, November 07, 2006 7:40 PM >> To: Barry at Mutual Data; WISPA General List >> Subject: Re: [WISPA] 900MHz Omni and gain >> >> >> Due to the eirp limits at 900 (36dB total) your antenna choice really >> should >> take into account the radio gain first..... >> >> Having said that, a lot of people put in the high gain 900 omni >> antennas and >> don't seem to have much trouble with them. >> >> I agree with the sector idea though. >> >> The 900 that I'm using now is trango. They have almost got the full >> eirp >> built right in to the radio/antenna system as it comes from the factory. >> The down side is that it takes 6 ap's to cover 360*. That can get >> spendy. >> Especially if you pay rent per antenna. >> >> As a rule, we are sectorizing more and more sites these days. Even >> the ones >> out in the sticks. There are too many other users out there showing >> up all >> of the time. >> >> latetrs, >> marlon >> >> ----- Original Message ----- >> From: "Barry at Mutual Data" <[EMAIL PROTECTED]> >> To: "WISPA General List" <[email protected]> >> Sent: Tuesday, November 07, 2006 6:01 AM >> Subject: Re: [WISPA] 900MHz Omni and gain >> >> >> >> >>> Hello Brian, >>> >>> No more then 8db in my playbook anymore. And horz. if at all possible. >>> >>> Sectors on 900 is the best way to go too. >>> >>> I got an Antel 11db with downtilt that I would sell if you really >>> want a >>> vertical omni. Heavy duty antenna. >>> >>> Barry >>> >>> Tuesday, November 7, 2006, 8:20:28 AM, you wrote: >>> >>> BR> I looking for input on what vertical 900 omni to use. I have heard >>> BR> statements from Marlon like "I'd never use a 2.4 omni over such and >>> such >>> BR> gain.....", because of the beamwidth and such. Anyway what are the >>> BR> opinions of the use of the 900 omni? >>> BR> http://www.pacwireless.com/products/omni_900mhz.shtml >>> >>> BR> Brian >>> >>> >>> >>> -- >>> Best regards, >>> Barry mailto:[EMAIL PROTECTED] >>> >>> >>> -- >>> WISPA Wireless List: [email protected] >>> >>> Subscribe/Unsubscribe: >>> http://lists.wispa.org/mailman/listinfo/wireless >>> >>> Archives: http://lists.wispa.org/pipermail/wireless/ >>> >> >> >> -- >> WISPA Wireless List: [email protected] >> >> Subscribe/Unsubscribe: >> http://lists.wispa.org/mailman/listinfo/wireless >> >> Archives: http://lists.wispa.org/pipermail/wireless/ >> >> >> -- >> No virus found in this incoming message. >> Checked by AVG Free Edition. >> Version: 7.1.409 / Virus Database: 268.13.27/517 - Release Date: >> 11/3/2006 >> >> >> >> -- WISPA Wireless List: [email protected] Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
-- Lonnie Nunweiler Valemount Networks Corporation http://www.star-os.com/ -- WISPA Wireless List: [email protected] Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
