Motorola canopy

has anyone any experience using Motorola canopy in the field?
Specifically distances and NLOS.
Thanks,
Andre

Without the reflector, about 1mi LOS. Nothing is going to happen in NLOS
situations.

Alvarion VL is the solution if you want NLOS

"Andre ter Weele" <(E-Mail Removed)> wrote in message
news:Yw3lb.8234$(E-Mail Removed)...
> has anyone any experience using Motorola canopy in the field?
> Specifically distances and NLOS.
> Thanks,
> Andre
>
>

Andre,

"Andre ter Weele" <(E-Mail Removed)> wrote in message
news:Yw3lb.8234$(E-Mail Removed)...
> has anyone any experience using Motorola canopy in the field?
> Specifically distances and NLOS.
> Thanks,
> Andre
>

We have two Canopy systems running. A standard Canopy subscriber module
(with 8dbi antenna) can connect to the access points from a maximum distance
of 2 miles according to Motorola. I have several subscribers that are about
1.5 to 1.8 miles from an AP and have had no problem maintaining a good
connection.

The optional 26 dbi subscriber antenna can extend the range to 10 miles
according to Motorola. We have one subscriber that is 9.1 miles from an AP
using this antenna.

Canopy must have Line of Site. The biggest problem we encounter is path's
being obstructed by trees. The 5.8GHZ signal can be severely attenuated by
foilage. If we cannot see the AP's it is highly doubtful that a path can be
achieved.

Canopy provides an aiming mode that allows the installer to aim the antenna
using an audible tone that varies in pitch and volume according to signal
strength and jitter. Once a path is established you can access the web page
on the subscriber module to observe Relative Signal Strength Indication
(RSSI) and jitter values.

Bill

Jeremy Parr wrote:

> Without the reflector, about 1mi LOS. Nothing is going to happen in NLOS
> situations.
>
> Alvarion VL is the solution if you want NLOS

I agree in theory, but in practicality I've had some pretty amazing NLOS
links work when there was no way they should. Not every time, no
breaking the laws of physics (I think). But I have several links still
up and running solid that are in no way LOS using 802.11b. I don't
discount the possibility until I actually try it.

>>has anyone any experience using Motorola canopy in the field?
>>Specifically distances and NLOS.
>>Thanks,
>>Andre

Sure, sometimes things work when you don't expect them to. I did an eight
mile link over water and through a line of trees with close to 100% fresnel
blockage due to a rocky hill at one end of the link. Signal strength is low,
but it works.

Of course, that is 2.4ghz, not 5ghz. My NLOS sucess at 5ghz has been night
and day compared to 2.4ghz. From what I have been reading the OFDM in the
VL, Wi-Lan, and Redline promise (and seem to deliver) NLOS links. But, YMMV.

Jeremy

"Rôgêr" <(E-Mail Removed)> wrote in message
news:3f972fa2$(E-Mail Removed)...
> Jeremy Parr wrote:
>
> > Without the reflector, about 1mi LOS. Nothing is going to happen in NLOS
> > situations.
> >
> > Alvarion VL is the solution if you want NLOS
>
> I agree in theory, but in practicality I've had some pretty amazing NLOS
> links work when there was no way they should. Not every time, no
> breaking the laws of physics (I think). But I have several links still
> up and running solid that are in no way LOS using 802.11b. I don't
> discount the possibility until I actually try it.
>
> >>has anyone any experience using Motorola canopy in the field?
> >>Specifically distances and NLOS.
> >>Thanks,
> >>Andre
>

So of Redline, Wi-LAN, VL...which is the best bang for your buck? (I am
assuming 802.11b/g technologies wont be useful at longer distances).


"Jeremy Parr" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> Sure, sometimes things work when you don't expect them to. I did an eight
> mile link over water and through a line of trees with close to 100%
fresnel
> blockage due to a rocky hill at one end of the link. Signal strength is
low,
> but it works.
>
> Of course, that is 2.4ghz, not 5ghz. My NLOS sucess at 5ghz has been night
> and day compared to 2.4ghz. From what I have been reading the OFDM in the
> VL, Wi-Lan, and Redline promise (and seem to deliver) NLOS links. But,
YMMV.
>
> Jeremy
>
> "Rôgêr" <(E-Mail Removed)> wrote in message
> news:3f972fa2$(E-Mail Removed)...
> > Jeremy Parr wrote:
> >
> > > Without the reflector, about 1mi LOS. Nothing is going to happen in
NLOS
> > > situations.
> > >
> > > Alvarion VL is the solution if you want NLOS
> >
> > I agree in theory, but in practicality I've had some pretty amazing NLOS
> > links work when there was no way they should. Not every time, no
> > breaking the laws of physics (I think). But I have several links still
> > up and running solid that are in no way LOS using 802.11b. I don't
> > discount the possibility until I actually try it.
> >
> > >>has anyone any experience using Motorola canopy in the field?
> > >>Specifically distances and NLOS.
> > >>Thanks,
> > >>Andre
> >
>
>

"Conan" <(E-Mail Removed)> wrote in message
news:SoJlb.15571$(E-Mail Removed)...
> So of Redline, Wi-LAN, VL...which is the best bang for your buck? (I am
> assuming 802.11b/g technologies wont be useful at longer distances).
>

Well... The RedLine AN-50 and the Alvarion LinkBlaster are the same
product, Alvarion rebadge it. It's actually pretty nice, although it
seldom manages to run in it's higher modulation modes if you have a
real NLOS link.

If you have a really hard NLOS path, then I would recommend
Orthogon Systems 5815, since it generally sustains a reliable link in
harsh NLOS conditions were other products can't bring a link up
at all.

If you have LOS or very slight NLOS conditions then the decision
might be a bit less clear-cut.

News Reader

I'm 2 miles LOS and have a rock-solid 3.5 Mb/s up 0.5 Mb/s down link.

Jim

On Tue, 21 Oct 2003 11:05:37 -0400, "Jeremy Parr"
<(E-Mail Removed)> wrote:

>Without the reflector, about 1mi LOS. Nothing is going to happen in NLOS
>situations.
>
>Alvarion VL is the solution if you want NLOS
>
>"Andre ter Weele" <(E-Mail Removed)> wrote in message
>news:Yw3lb.8234$(E-Mail Removed).. .
>> has anyone any experience using Motorola canopy in the field?
>> Specifically distances and NLOS.
>> Thanks,
>> Andre
>>
>>
>