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Re: Radio Uplink



Hi,

On Mon, 2 Nov 1998, Meir Litmanovich wrote:

> Few monthes ago I contacted BreezeCom for
> same purpose ( Internet 24/7/52 :-) and here few
> things I learned from them . Hope it would help you.
> All the info at Breezecom responsibility .

Well, in that case, let me give you some data from my own experience :)

> 2. Their equipment can help yu establish very god bandwith 
> rates ( up to 1.2 Mb ). That's good.

They promised 3-4Mb/s when we started the tests, now they go public with
1.2Mb. The truth is, actually, closer to 900Kb/s, in a 50 meter distance
with a clear line of sight, on a zero-humidity sunny day.

> 3. What's bad - you must see one place from another in point-to-point
> scheme or all the places need to see the condensator 
> (in star scheme ) . That meens "kesher vizuali" on hebrew.

Not true. I've been using the SA-10 module from within a concrete(!) 
building with throughput at 100-200Kb/s. Currently my unit is within line
of sight of the other antenna, with a few trees and leaves in the
middle, partially in the way, so I get 700Kb/s.

> 4. They are not cheap. You need at least one condensator 
> and one adapter . Condesator was about $2000. Adapter - $1000 .
> Add to this anthenas (you need special ones )
> and you'll get quite big price .

the small side antennas are included, special (extra-sensitive) antenna
are at $50 or so.

> 5. It's fully platform independent. Adapter is a box 
> with rj-45 ouptut. Plug the network there and you're done.
> It also supports SNMP . 
> There are also some other models, like PCMCIA for laptops and
> so on .

I've tried it with Linux, Windows 95/98, NT and AIX, works fine.

Shachar Tal
-------------
Taub Computer Center, Technion, Israel Institute of Technology
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