| |
VK2AAB > WIFI 26.06.06 02:40l 32 Lines 1418 Bytes #999 (0) @ WW
BID : 19152_VK2AAB
Read: DK5RAS DK3TB OE3GMW GUEST DO6NP DO5MC
Subj: Re: Packet & WiFi
Path: DB0FHN<DB0RGB<OK0PPL<DB0RES<DK0WUE<SP7MGD<VK7AX<VK3HEG<ZL2ARN<VK2AAB
Sent: 060626/0109Z @:VK2AAB.#SYD.NSW.AUS.OC #:19152 [SYDNEY] FBB7.00i
From: VK2AAB@VK2AAB.#SYD.NSW.AUS.OC
To : WIFI@WW
It seems to me that a better step would be to adopt the WiMax standard.
The equipment is now manufactured but is on commercial frequencies.
A group or national organisation could negotiate the purchase of the base
station equipment and significant power and antennae could be used.
The 23 cm band would be a natural I would think.
The users modem equipment is quite modest in cost, around A$150 but of course
would need a high gain antenna. They normally use a little vertical on the
desk alongside the computer. They would also need conversion to say 23 cm.
In Sydney this equipment in good locations has ranges of up to 30 KM on 5Ghz.
Sydney is covered by about 80 base stations.
With good sites and much higher powers and higher gain antennae we should be
able to achieve full city coverage with only one or two base stations.
The commercial operators with thousands of users have to adopt a cellular
technicque or no one would get a lookin. With our much smaller nuber of
users one base station per city might be enough.
I have no idea of what bandwidth is needed but perhaps even 70cm could be
used for better coverage. After all we have two TV channels on that band.
Not exactly off the shelf but haven't we been modifying commercial gear for
ever ?
I am no expert on these things but can anyone see a problem ?
73 Barry VK2AAB
Read previous mail | Read next mail
| |
