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Long-Range Point-to-Multipoint Wireless Internet
- Overall Status: Purchasing Antennas (September 2006)
- Proposed on: October 2004 (CK's graduation)
- Started on: The next day, pretty much
- Three Senao 802.11b basestations
- 21dBm transmit strength
- Very excellent -91dB sensitivity
- Three 8-slot waveguides from Borg NZ
- 120-degree horizontal scope each
- 23-degree vertical scope
- insert link for footprint diagram
- Tower (level 17)
- 150m altitude from street level
- insert link for GPS reference
- Rainproofed box for tower equipment
- Switched hub connecting basestations
- Power-over-Ethernet to basestations
- 240V supplied
- Blinkenlights for IP traffic?
- R/G/B for 3 basestations?
- Ethernet link from switched hub to lab
- 2 segments joined by a repeater / hub / switch
- Waveguides to be positioned between 0º and 1º elevation downward from horizon
- This is to achieve maximum strength (see footprint) at 40km (trigonometrics), our estimated maximum link
- Waveguide compass orientations
- 000.0º N (apogee of major obstruction)
- 135.0º SE
- 247.5º WSW
- Basestation authentication to be decided.
- Anonymity concerns?
- Gathering usage stats?
- Free use is necessary
- Free use/logins is desirable
- Development of cheap client access hardware
- Howto make something better than a pringle can transceiver (http://www.turnpoint.net/wireless/cantennahowto.html)
- [DONE] First stage ethernet installed.
- [DONE] 240V supply installed.
- [DONE] Basestations purchased.
- Antennae require purchasing.
- Blinkenlights require purchasing.
- In-lab configuration of basestations is highly recommended
- [PRELIM TEST DONE] Short-range testing of point-to-point connectivity is highly recommended
- Further cable & wiring
Possibility: Acquire antennas from NZ
- Rang and normally cost around $30 for shipping in quantities of 40 (therefore, for quantities of 3, much higher).
- He will get back to us and provide new pricing, and CK to email him 14th of September. Update 24-Nov -- no response from NZ.
- DE is now pursuing a new, Sydney-based line of supply for equivalent product.
Antennae Require Purchasing
- DE will put us in contact with Sydney Wireless dude. Let's get him in first week of October.
- [IN CHARGE]: CK will contact Dave, then contact said dude.
- Let's get some IP ranges & ideas when the dude (above) comes around.
- Then we'll spend a couple of Thursdays getting them configured.
- [IN CHARGE]: who wants this?
- NdV has successfully tested Senao-to-Senao (using one of ours), with cantennas, over 100 metres
- We need to replicate this experiment on the roof
- [IN CHARGE]: who wants this? Nathan?
- Blinkenlights: who wants this? Butters? We need some of those OLED lights. Red & green & blue sets would be kewl.
- Further cable/wiring: who wants this?
Notes (to be depricated, coz we won't use this guy now)
- Name of New Zealand antennae supplier is Andrew Hooper.
- Insist on 8-slot waveguides, not sector panels etc.
- Export from NZ has been confirmed as viable by Andrew Hooper.
- Email at Andrew Hooper <andrew at borg.co.nz>
- Phone at 0011 64 21 212 9200.
- NB: Ask Westpac if they can cheaply send payments to Westpac NZ bank accounts.