Hi Tim,
Some of the AP and Client equipment we use is assembled from
parts-pieces. Some of this stuff , like our 900 MHz gear, is built from
small computer boards that run a Linux OS and have MiniPCI radio cards
that make a complete wireless router, ap, or client device. We use the
PC Engines "WRAP" and MikroTik RouterBoard. The RouterBoard comes with
the OS, however the WRAP you must install some OS on it; for those we
use StarOS and StarV3. Building such a system is not for the faint of
heart, because some knowledge of IP routing is necessary to make it all
work.
I have a few NON line of sight paths working on 2.4 GHz. There are
amplifiers that can really make a difference with the 2.4 stuff, and
depending on where you are in the world, they may be legal. Some of
these paths run 1 watt of TX rf and have pre-amps for the receive
signal. They run very tight 24 dB grid parabolic antennas
2.4 GHz is the cheapest band for internet equipment as there has always
been a flood of stuff made for it, but there can be a lot of
interference to overcome. 5.8 GHz is less crowded, but the stuff is
more money. 900 is nice for NON LOS stuff, but is even more money than
5.8 GHz stuff. The 900 stuff we build uses the new Ubiquiti SR9. It
has up to 700 mW of power and utilizes the same 2.4 GHz protocol that
has been refined for very reliable packet transfer.
The Linksys stuff I mentioned earlier is cheap from eBay, like US $40
each for the devices. The WET11runs about 100 mW. Someone else
mentioned the 200 mW Senao-Engenious CB3 and the 400 mW version. They
are very good units as well, but cost considerably more than the WET11.
One big advantage of the CB3 is it can be either an AP (access point) or
a CPE (client premise equipment), I.E. Client device. The WET11 can
only be a Client.
The use of short feedlines and good antennas are where the most can be
gained when doing any abnormal shot. We use 24 dB grids on 2.4, and 15
dB yagis on 900. Some of this equipment is able to be powered over the
Ethernet cable (POE), allowing the radios (repeaters, routers) to be
mounted right at the antenna; which greatly reduces feedline loss. The
CB3 is POE right out of the box. The WET11 V1 or V2 can be POE'ed with
modification:
<http://rob.pectol.com/WET11/wet11_mod.html>
<http://www.kuggie.com/wireless/pix/wet11-v2-poe.jpg>
The WET11 V1 uses a standard 100 mW PCMCIA laptop card for the "radio".
It can be changed out to a higher powered card to do more difficult
shots. These days, the CB3, or 400 mW version of it is likely a better
choice, especially since it can be an AP
Have you tried to make your shot work? If so, what did you use?
Tim and Janet wrote:
Kevin, can you go into a little more detail on your system? I am
in the same situation and a friend that has both DSL and Cable
available has agreed to let me install a system between his and my
house. The path is 7.2 km and is not line of sight. I have a
slight hill between us. If he just had a tower too we could make
it on 2.4 Ghz.
What are the radios, antennas, other equipment used? Power output?
Thanks for the info.
Tim
Re: Need Help... where can I buy a DSL-Internet repeater...?
<http://groups.yahoo.com/group/Repeater-Builder/message/67664;_ylc=X3oDMTJxOTdjbWhnBF9TAzk3MzU5NzE1BGdycElkAzEwNDE2OARncnBzcElkAzE3MDUwNjMxMDgEbXNnSWQDNjc2NjQEc2VjA2Rtc2cEc2xrA3Ztc2cEc3RpbWUDMTE2NzY3MzY4Mw-->
Posted by: "Kevin Custer" [EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>
repeaterbuilder <http://profiles.yahoo.com/repeaterbuilder>
Mon Jan 1, 2007 7:46 am (PST)
Bill,
You can send your DSL service wirelessly to your home a number of ways.
802.11B (2.4 GHz) is the cheapest, but requires a good near line of site
path. We started using some new 900 cards that seem to work really well
in non line-of-site applications. Scott and I have a 900 path that is 6
or so miles and works great. His end is solar powered! There are
several ways to manage the path as well. If you wanted to serve other
homes than your own, an Access Point will need to be set up at your
office, and client devices deployed at the places you want to deliver
service.
If you have a good path, I'd start with 2, Linksys WET11's and some good
24 dB grids. The WET11's can be bought cheaply from eBay and the grids
new from wlan parts in CA. The WET11's can be set up in Ad-Hoc mode and
will simply be a radio extended Ethernet cable; and with 1.5.8 firmware
is a cheap stable client device for 2.4 802.11B services. There are 2
versions of the WET11, V1 and V2. I prefer the V1 box because it can be
modified with higher power cards if needed.
While this may be a bit off-topic for this list, I'll allow this
discussion as others may want to learn about Internet 'repeaters'.
Kevin Custer
List Owner
