[wsfii-discuss] What is the best and long range Point to Multi Point radio?

Sun Feb 25 18:14:12 UTC 2007

Hi Mahabir,

look at www.sesami.in  they have high power radios. For antennas, if you
use high gain antennas (like 24-30dbi) they are in shape of solid
parabola or grid parabola anyway, so maybe it's easier to put lightning
arrestor close to antenna, on the mountain?

or take Senao NCB3220  - 400 mW radio + 24-30 dbi antenna - on both
sides, it will burn the air ;)  ( www.wlanparts.com )

Best,
Zvi

mahabir at himanchal.org wrote:
> Hello All;
>
> I am working on a plan to build another long range network in Nepal. I had
> posted the satellite photo of the new network in this discussion list but
> it was not delivered because the file was more than 40 KB limit.
>
> The longest P2P distance is 42 KM and the others are in the range of 15 KM
> to 30 KM. I am thinking about using 5.7 GHZ Canopy backhaul (20 Mbps) for
> the 30 to 41 KM P2P link. Howerver, for some links that are in the range
> of 15 to 25 KM, I would like to use Point to Multi Point radios because
> there are some villages that can be covered by one Access Point.
>
> Could you please recommend the radios that you think will be good? I am
> looking for the radios that has built-in antenna. I don't want to use
> radios that need external grid antennas. The main reason is that we will
> put the radios on the top of high mountain and my experiences tell that
> the external grid antennas attract electrical surges from the thunderstorm
> easily that damages the radios.
>
> Could you also tell that whether 802.11g radios will be good for long
> range connection (15 to 25 KM)?
> Thanks.
>
> Mahabir
>
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