Long Range Wireless Antenna

I am trying to connect to a wireless service provider that is about 5
miles from me, as the crow flies. I can't directly see their antenna
but am just on the other side of a slope from them. What would be the
best solution to getting connected to them? BTW- I am living in the
Balkans and have little immeadiate availability to equipment. What I
do have is a DLink 900-AP+ and a DLink ANT24-1400 outdoor antenna. Can
anyone let me know if these things will work or what some good ideas
are for improvising?

Thank you

KH

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In <(E-Mail Removed) .com> on 18 Oct 2005
11:40:22 -0700, (E-Mail Removed) wrote:

>I am trying to connect to a wireless service provider that is about 5
>miles from me, as the crow flies. I can't directly see their antenna
>but am just on the other side of a slope from them. What would be the
>best solution to getting connected to them? BTW- I am living in the
>Balkans and have little immeadiate availability to equipment. What I
>do have is a DLink 900-AP+ and a DLink ANT24-1400 outdoor antenna. Can
>anyone let me know if these things will work or what some good ideas
>are for improvising?

You need line-of-sight.

--
Best regards, HELP FOR CINGULAR GSM & SONY ERICSSON PHONES:
John Navas <http://navasgrp.home.att.net/#Cingular>

So, if I can get line of sight, will the equipment that I have work to
bring in the signal?

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In <(E-Mail Removed) .com> on 18 Oct 2005
14:16:28 -0700, (E-Mail Removed) wrote:

>So, if I can get line of sight, will the equipment that I have work to
>bring in the signal?

Here's what D-Link has to say:

ANT24-1400

Outdoor 14dBi High Gain Directional Panel Antenna

* 30° Horizontal Spread & 30° Vertical Spread
* 0.5m Length Pigtail Cable with N-Male to RP-SMA Supplied
* N-Female Connector
* Mounting Kit Supplied
* Extends Wireless Range up to 3 km
* Suitable for all IEEE 802.11b, 802.11g (D-Link Air, AirPlus,
AirPlusXtremeG) products with detachable antenna

So, given that your distance is 5 miles (8 km), the answer is "no".

--
Best regards, HELP FOR CINGULAR GSM & SONY ERICSSON PHONES:
John Navas <http://navasgrp.home.att.net/#Cingular>

Any suggestions as to what would work- within a reasonable budget?

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In <(E-Mail Removed). com> on 18 Oct 2005
14:25:28 -0700, (E-Mail Removed) wrote:

>Any suggestions as to what would work- within a reasonable budget?

18dBi for $170:
<http://www.wirelessnetworkproducts.com/index.asp?PageAction=VIEWPROD&ProdID=907>
24dBi for $80:
<http://www.wirelessnetworkproducts.com/index.asp?PageAction=VIEWPROD&ProdID=523>

--
Best regards, HELP FOR CINGULAR GSM & SONY ERICSSON PHONES:
John Navas <http://navasgrp.home.att.net/#Cingular>

The signal can often bend a lot more than most people realise or appreciate.
Locally there is an AP some 3Km away and obscured by a decent amount of
earth and bush yet I consistently get very reliable link to it.

The best thing to do is to try it and see if you can get sufficient signal
with the equipment that you have but do not expect to get 54G performance.
You may be able to get a 1 or 2 Mbs rate successfully though. You may need
to try moving the antenna around to slightly different locations and need to
aim it quite accurately.

Try it, it may just work, if not, you will probably get a better idea of
what you need to do. To Paraphrase Jeff L., "Learn by Destroying" except
that you will not be destroying anything.

Peter
<(E-Mail Removed)> wrote in message
news:(E-Mail Removed) ups.com...
> Any suggestions as to what would work- within a reasonable budget?
>

Perpahs a pray to God might be in order


<(E-Mail Removed)> wrote in message
news:(E-Mail Removed) oups.com...
>I am trying to connect to a wireless service provider that is about 5
> miles from me, as the crow flies. I can't directly see their antenna
> but am just on the other side of a slope from them. What would be the
> best solution to getting connected to them? BTW- I am living in the
> Balkans and have little immeadiate availability to equipment. What I
> do have is a DLink 900-AP+ and a DLink ANT24-1400 outdoor antenna. Can
> anyone let me know if these things will work or what some good ideas
> are for improvising?
>
> Thank you
>
> KH
>

[POSTED TO alt.internet.wireless - REPLY ON USENET PLEASE]

In <(E-Mail Removed) .com> on 18 Oct 2005
14:16:28 -0700, (E-Mail Removed) wrote:

>So, if I can get line of sight, will the equipment that I have work to
>bring in the signal?

The "2.4GHz Antenna Gain vs. Range Table" at
<http://www.tomsnetworking.com/Sections-article44.php>
shows the range difference (under ideal conditions)
between 14 dBi and 24 dBi antenna gain, and suggests
that 14 dBi *might* be able to work at low speed over
your 5 mile (8 km) distance (assuming a good
omnidirectional antenna at the other end).

--
Best regards, HELP FOR CINGULAR GSM & SONY ERICSSON PHONES:
John Navas <http://navasgrp.home.att.net/#Cingular>

On 18 Oct 2005 14:16:28 -0700, (E-Mail Removed) wrote:

>So, if I can get line of sight, will the equipment that I have work to
>bring in the signal?

No. At 5 miles, even with line of sight, and a 24dBi dish antenna,
and mounting your client radio next to the dish, you still will not
have enough signal to make it to the truck stop because they're
probably using a simple wireless router with the stock omni
directional antennas. They would need to either install an outside
antenna for your benefit, or possibly install an additional access
point with directional antenna specifically for your benefit. I
calculate the fade margin if you want, but I can speculate that it's
not going to happen even with line of sight.

Incidentally, at 2.4GHz, you need *MORE* than just line of sight. You
need Fresnel zone clearance.
http://www.terabeam.com/support/calc...esnel-zone.php
At 5 miles, you need a radius of 52ft of clearance at the midpoint.
That means that the center line connecting your antenna and the one at
the truck stop has be at least 52 ft off the ground at midpoint.
Another combination is if you assume the truck stop end to be at
ground level, your antenna needs to be 104 ft off the ground.

Also, if there are any other 802.11b/g stations along the line of
sight (or beyond), your antenna is going to hear them quite well, and
you'll find yourself dealing with interference problems.

--
Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060
831.336.2558 voice
http://www.LearnByDestroying.com AE6KS
http://802.11junk.com Skype: JeffLiebermann
(E-Mail Removed) (E-Mail Removed)