----- Original Message -----
Sent: Thursday, August 14, 2003 12:55
AM
Subject: RE: [smartBridges] Cost
Effective Tower!
I agree its not for every situation but don't disregard it as
a very helpful addition to sectors and some omni's. We used to go nuts before
we really learned wifi putting up 6 watt amps on our wireless equip LOL now we
stick to 250's and 500's where needed. Our competitor uses 24db grids for
links that are less than a kilometer and I believe he has 500mw amps on his
radio's as well, but hey more power to him :)
Chris
-----Original Message-----
From: Mike
Brownson [mailto:[EMAIL PROTECTED]]
Sent: Thursday, August 14, 2003 12:04 AM
To: [EMAIL PROTECTED]
I mentioned earlier that amps should only be used on omnis in
special
circumstances. This may be one.
Just be ready for a fair amount of
packet loss on the
AP uplink side. But in a lightly used system that is
not too big an issue. Unless you are in a noisy area, then you
will only
see about 5Kb upload rate on a good
day. At a conference recently I was
talking to a
guy who bought a system from a reseller in Florida, a Ap-1000
hooked to a 15dB omni and an amp. This was to be set up in a
heavily
populated area in east LA. He was
wondering why he was getting 140Kb
download but only
about 5Kb upload. It's because only about 5% of his
packets were getting received by his AP. The omni and amp was
looking at
everything from every direction. No
wonder he couldn't see any upload
speeds. So if
you are in East LA don't even think about it. Perhaps a
very rural area it might be ok.
Mike B
> Tim, I don't doubt that sectors are the way to go,
however, when cash is
> tight, I need to get some
clients. Right now I have none and just cash
>
going out. hence, not good.
>
> So, a omni will hae to do for now. The reason I wanted a AMP
was to get
> the maximum VBW, and max 36db
power.
>
> Dennis
>
> ----- Original Message
-----
> From: "Tim Foster"
<[EMAIL PROTECTED]>
> To:
<[EMAIL PROTECTED]>
> Sent: Wednesday,
August 13, 2003 9:27 PM
> Subject: RE:
[smartBridges] Cost Effective Tower!
>
>
>> Amps amplify signal
*and* noise, so to my thinking, you'd want as
>>
little amping as possible.
>> High gain antennas
is good, but the higer the gain, the narrower the
>> vertical beamwidth.
>>
>> Good luck and have fun figuring out what's best.
;)
>>
>> (I
started out with a 500mw amp and a 8dB omni. Everything got *much*
> better
>> when I went to
sectors)
>>
>> Tim
Foster
>> Aledo BroadBand
>> � www.AledoBroadBand.com �
>>
Aledo's only high-speed ISP
>>
>> > -----Original Message-----
>> > From: [EMAIL PROTECTED]
>> > [mailto:[EMAIL PROTECTED]]On
Behalf Of Dan @
>> Wyoming.com Sent: Wednesday,
August 13, 2003 9:06 PM
>> > To:
[EMAIL PROTECTED]
>> > Subject: Re:
[smartBridges] Cost Effective Tower!
>>
>
>> >
>>
> I would at least go with a 9dbi omni. Here is the one we have
been
>> using until we put up our 120
sectors.
>> >
>> > http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3039990945&cate
>> gory=11175
>>
>
>> > Very inexpensive.
>> >
>> >
>> > On Wed, 13 Aug 2003 20:55:25 -0500
>> > "Dennis Burgess" <[EMAIL PROTECTED]>
wrote:
>> >
> I again, am getting ready to install my
equipment on a tower.
>> > > We are
planing on using a 5db omni with a 1watt amp. However, we
>> do also have to install a 19db pacwireless grid
antenna on the
>> tower also.
>> > >
>> > > Would
this work to save cash?
>> > >
>> > > 19db grid backhaul connected to Airbridge
Outdoor --> Ethernet
>> running down tower
into shack --> into switch -- > Into Airpoint
>> Indoor (i do belive this has 100mw) --> Power injector for
amp -->
>> up tower to amp --> 1 foot to
omni.
>> > >
>> > > We need to get some cash coming in first then we
will upgrade to
>> 180 sectors.
>> > >
>> > > Let me
know
>> > >
>> > > Dennis
>> >
>> > The PART-15.ORG smartBridges Discussion
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Mike Brownson
Electro-comm
Distributing
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