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: <>
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JK> From: "Jason Keller" <[EMAIL PROTECTED]>
JK> To: <[EMAIL PROTECTED]>
JK> Date: Fri, 18 Jul 2003 00:59:58 -0500
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JK> Subject: RE: Re[4]: [smartBridges] New Firmware
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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
--------------------------------------------------------

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