Also time is an issue. By the time you figure out the problem / say your radio goes bad. You have to either climb the tower yourself. Or find someone to do it. And the take the new radio up there swap it out... Yada yada with my system you find the problem swap the radio and your done. Jason
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jason Keller Sent: Friday, July 18, 2003 8:42 AM To: [EMAIL PROTECTED] Subject: RE: Re[6]: [smartBridges] New Firmware With that injector/amp it can loose all signal but 6 dbm. 200 ft of lmr 400 =13.2 dbm loss. 17.8 dbm coming out of radio = 6.6 dbm at the amp. The amp then picks up the signal and re-trans at a full 30 dbm. With lmr 600 you could go 300 ft with exactly the same results. And with the buggy nature of direct sequence / chip set the climate control box at the bottom of the tower is an excellent way to avoid the heat!! Jason -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Lancaster Networks Sent: Friday, July 18, 2003 2:36 AM To: Jason Keller Subject: Re[6]: [smartBridges] New Firmware Hello, Have you priced hardline? You can't use LMR for long runs, even short runs, it's lossy. 7/8" miniumum for most good sized towers @ $6.00 foot for Cablewave (cheaper than andrews most cases) 1 5/8" best bet for towers about 300ft @ 11.00 foot for cablewave... Add up the cost, Coax over ethernet will not pay even to have a tower guy climb the tower 10 times to fix things. I did the math, and putting the radios at the top of the tower is the most ideal position. No loss, and no cost! It would have cost upwards of $10,000 just to get hardline put on my tower , NOT including installation of the hardline, ground straps, and any other hardware (connectors, grounding, etc) Friday, July 18, 2003, 1:59:58 AM, you wrote: JK> Return-Path: <> JK> Received: from [66.150.163.162] (HELO m5) JK> by spamarrest.com (CommuniGate Pro SMTP 4.0.3) JK> with ESMTP id 10163803 for cbunting; Thu, 17 Jul 2003 23:22:56 -0700 JK> Received: from part-15.org ([198.63.203.3]) JK> by mail.fission2.com (Merak 5.9.4) with SMTP id CPA74271 JK> for <[EMAIL PROTECTED]>; Fri, 18 Jul 2003 02:22:03 -0400 JK> Received: from smtp.omnis.com [216.239.128.26] by pdqlink.com with ESMTP JK> (SMTPD32-4.07) id AECC170136; Fri, 18 Jul 2003 01:08:12 CDT JK> Received: from home (unknown [208.28.240.102]) JK> by smtp-relay.omnis.com (Postfix) with ESMTP id 80D125B688 JK> for <[EMAIL PROTECTED]>; Thu, 17 Jul 2003 23:00:18 -0700 (PDT) JK> From: "Jason Keller" <[EMAIL PROTECTED]> JK> To: <[EMAIL PROTECTED]> JK> Date: Fri, 18 Jul 2003 00:59:58 -0500 JK> Message-ID: <[EMAIL PROTECTED]> JK> MIME-Version: 1.0 JK> Content-Type: text/plain; JK> charset="us-ascii" JK> Content-Transfer-Encoding: 7bit JK> X-Priority: 3 (Normal) JK> X-MSMail-Priority: Normal JK> X-Mailer: Microsoft Outlook, Build 10.0.2627 JK> Importance: Normal JK> In-Reply-To: <[EMAIL PROTECTED]> JK> X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 JK> Subject: RE: Re[4]: [smartBridges] New Firmware JK> Precedence: bulk JK> Sender: [EMAIL PROTECTED] JK> Reply-To: [EMAIL PROTECTED] JK> I don't usually put my 2 cents in on this forum, but here goes anyway. JK> My perfect cell site would be this. 1 omni 8 or 10 purchased from JK> www.hyperlinktech.com http://www.hyperlinktech.com/web/hgv_2410u.php or JK> http://www.hyperlinktech.com/web/hg2412u.php $50-$60 ( these are some of JK> the best antenna's for the price you will find) JK> With a 1 watt amp purchased from http://www.fab-corp.com/H1.htm $399 JK> Made by teltronics. JK> With a airPoint indoor in a climate control box at the base of the JK> tower. I figure you can go about $250ft with lmr 400 and over 300 with JK> lmr 600, because of the dc power injector at the base of the tower. JK> Basically the amp is so important because not only does that give you JK> 30dbm out of the antenna port instead of the 17 that an APPO gives you JK> but it also gives you 17dbm of receive strength its like taking every JK> one of your subscribers and giving them a uni 30 instead of a uni 13. JK> BIG DIFFERENCE. Now I know what all of you are thinking. FCC FCC FCC JK> fact is, that FCC guidelines say no more than 36 dbm coming out of your JK> antenna at the cell site. That is why you use an omni 8 or an omni 10. JK> With 10 ft of cable and a couple of connections you should be right on JK> the FCC guidelines. With this system you would also need a Weather proof JK> climate control box or a good building. This is a box I would definitely JK> recommend JK> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3035908761&category=1 JK> 1175 JK> I know this guy personally and he has these boxes specially manufactured JK> buy a local company. Very high quality. Oh also lightning arrestors, JK> very important. The other nice thing about this system is that if you do JK> have a bad radio, not only is it fairly in expensive to change ($189), JK> but you only have to go to the base of the tower also. No climbing!! JK> Well there is my 2 cents guys see what you think. JK> [EMAIL PROTECTED] JK> -----Original Message----- JK> From: [EMAIL PROTECTED] JK> [mailto:[EMAIL PROTECTED] On Behalf of Lancaster Networks JK> Sent: Friday, July 18, 2003 12:24 AM JK> To: Bill Flood JK> Subject: Re[4]: [smartBridges] New Firmware JK> To all: JK> Basically where I stand: JK> I have asked a local ISP (whom I am partnered with) to provide JK> bandwidth and the financial support of purchasing the equipment/site JK> rental fee (very low for the high-profile site it is), in exchange for JK> letting me manage the network, and do all of the customer installations JK> (hence JK> this is the part will I will get my money's worth in the deal) JK> I need to provide them with a COMPLETE proposal of this whole thing, JK> and right now, this is what I am going to propose to them: JK> (3) SmartBridges AirPoint Pro Outdoor @ $330.00 ea = $990.00 JK> (3) Maxrad 120 degree beamwidth antenna @ $407.52 ea = $1222.56 JK> (3) LMR-400 4ft jumper coax cable @ $24.00 ea = $72.00 JK> (3) Polyphaser 2.4ghz coaxial lightning protectors @ $35.66 ea = $106.98 JK> This isn't including any routing equipment/UPS power protection/rack JK> cabinet, cat5 cable, etc... JK> Has anyone needed to use polyphasers? We use them as a standard where JK> you have 100-300 foot hardline runs, but in this case, it's ethernet JK> cable. But I don't feel like climbing up the 300 foot tower to replace JK> a blown radio either. JK> This brings me to another point, are SB's products reliable enough JK> that I won't need to spend my entire life climbing the tower to fix JK> them or reflash them? JK> Has anyone had to do the dirty and go up to a huge tower and replace JK> them? JK> I plan on mounting the antenna's with a bit of a downtilt, but all at JK> the top of the 300' tower, because I am looking for long-range JK> performance. Any methods for calculating downtilt that work good? I've JK> used my knowledge in the broadcast/radio industry to make my own JK> calculations, and with the use of ComStudy (an excellent program for JK> calculating RF propagation) -- Best regards, Chris Bunting, MCSE President Cellular: 717-278-6639 Nextel ID: 196*50*18726 -------------------------------------------------------- Microsoft Certified Systems Engineer A+ Hardware Certification 3com NBX Certified Technician -------------------------------------------------------- Lancaster Networks 1085 Manheim Pike Lancaster PA 17601 717-735-2279 www.lancasternetworks.com -------------------------------------------------------- NOTICE: This Email message and all attachments transmitted with it may contain proprietary information intended solely for the use of the addressee. If the reader of this message is not the intended recipient, you are hereby notified that any reading, dissemination, distribution, copying, or other use of this message or its attachments is strictly prohibited. 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