USB adaptors & DIY antenna = ? Further mesh covered umbrella frame trials, especially with inverted umbrella & windproof golf types - handle & struts thus at dish rear! In fact NASA used such inside- out umbrella antenna with late 6. Apollo moon missions 6th Jan. Check recent DIY scoop dish pix from a Malaysian hi rise , & swivel mounted on an Oregon RV camper 2nd Feb.
Neater BOUTIQUE versions (1. B gain) suiting visually demanding indoor desktop use? Raw cookware can look - ah- . Kitchen sieves aren't usually very parabolic, but if spray painted black both they & scoops look appealingly . Although more costly, a small salvaged set top TV dish can look particularly classy too ! Such designs almost merit production as a road warrior laptop accessory, particularly suiting areas with otherwise marginal Wi.
We manufacture quality antennas for 3G, 4G & 4GX mobile and wireless broadband networks. Our antennas are designed to work on all Australian and other Networks around. Web-based remote control for ACOM-2000A, Expert 1K-FA, Elecraft KPA500, SteppIR or Rotators. The RC-1216H is developed especially for remote control of Amateur radio.
Fi signals (college dorms/libraries/fringe urban areas etc). Mmm - cottage industry anyone ? Typical on sale are the ZYAIR G- 2. US$8. 0) & slower B- 2. US$4. 0) units, with the 1. Bm (4. 0m. W) JAHT WN- 4. U 5. 4Mbps . These cheap .
A Genius GW- 7. 20. U . HOWEVER- the limiting factor now looks ones weak outgoing signal (this Genius is 1. Bm ~4. 0m. W), meaning powerful remote APs may be heard, but NOT connected to. Just because you can detect them (via NS etc) doesn't mean they can hear YOU! Obviously a transmitter booster now needed, or improved focusing for outgoing signal? A deeper reflector,or Cassegrain design , may also help better illuminate the dish 2. April 2. 00. 5: Don't know if we've coined a new term, but !
A compact commercial ! It certainly looks most professional however!
May 2. 00. 5: Before throwing $$$ around setting up a longer range (~several km?) community/commercial Wi. Fi link,it's suggested an initial signal audit be done with a cookware parabola & Wi. Fi PDA (or USB laptop) running Net.
Stumbler etc. 2. 4. GHz wireless signals are often . This approach is akin to the classic use of a small portable TV set to find reception sweet spots around a property when installing a terrestial TV antenna.
Best signals may NOT be where you think- site survey FIRST! Theoretical maths link analysis - perhaps via Electro- Comm G. B. P. P. R. 2. 1st June 2. Passive repeaters may offer slight signal boosts in difficult conditions - trees/buildings in way etc. Solar powered ? 2. Dec 2. 00. 5: Hawking Tech's new HWU8. DD desktop USB + small dish ( ~ US$7.
B gain.. 2. 00. 6: The easiest way to evaluate prospective cookware reflectors is to simply match the catenary curve made by a short length of light hanging chain against your dishes profile. Although NOT a perfect parabola (even Galileo was fooled!) this is good enough for most Wi.
Fi work, & later focal point checking can be found by measurement/calculation/experimentation or reflecting the sun's rays. NB- although shallow dishes are more common with Sat. TV, deeper parabolas may be more useful with USB Wi. Fi, since they better capture & direct your weak outgoing signals. Most USB WLAN adaptor transmitters are only ~4. W.. 2. 00. 6: Quick trials with Picaxe driven 1m.
W XBee . Even cardboard & foil template parabolas and corner reflectors enhance signals usefully- both for the Zig. Bee & USB Wi. Fi setups. These fleapower Zig.
Bee modules maxed out at ~2. B cookware system gain hence boosts ranges ~2x. B doubling range. Max. Stream's more powerful XBee Pro (1. W & with a superior receiver) should hence yield LOS ranges only influenced by the earth's curvature!
Jan. 2. 00. 6: Maths free parabolas? Clamped rods & thick sheets etc assume a parabolic shape when flexed! A few minutes hence with a flexible sheet offcut (plastic or metal),string, glue & cooking foil can give you up to 9d. B gain - use the old . RECOMMENDED WHEN NO OTHER COOKWARE MATERIALS TO HAND .. Mid May 2. 00. 6: On the road with boat, bike, car or RV (recreational vehicle)?
Many camp grounds & marinas now offer . Rather than annoyingly move your boat,tent or camper just to improve reception,check USB approaches suggested by a Canadian RV group , & DIYer .
Maybe take along a broom handle or fishing rod too? It beats having to park in a puddle next to the toilets.. Consider also weather/insect/bird proofing the USB adapter & connection with perhaps- gasp!- a wide mouthed baby's bottle! June- Aug. 2. 00. Feedback after a RTW trip). Wi. Fi networks now abound globally (although suitable cookware may be elusive!), & travellers should consider on the road wireless email/web browsing via a PDA or compact laptop, such as the reliable, sensitive & cheap (~US$4.
Acer 3. 62. 4WXCi. Although WEP is admirably now common,open APs are plentiful- often deliberately organised as a business draw card - camp grounds,pubs,coffee shops & even cyber towns etc. Surging global growth by Spanish Wi. Fi business FON may even tempt enterprising minds to set up their own . Instead of open Wi. Fi being ? Security should be the client's concern, much in the way Wellington's Cafe.
Net cautions users. Suburbs in UK or NZ etc now show APs ~every 1. There was nothing like sipping a beer while reading your email 7 miles above Nepal - quite takes you mind off the in flight movies & US/UK airport security chaos. Esteemed Engenius/Senao USB Wi. Fi products finally to hand, with Kapiti Coast (Wellington- NZ) firm Bits. EXT prices! There's been positive web feedback about Senao's .
Initial tests indeed confirm superior performance, ideal for difficult links- if your budget can cope. However transmitter output looks just 1. W (rather than the oft quoted 2. W) & distant (many km) APs often still could not be connected back to.
Performances from either . Quick 3. 62- EXT trials of the simpler bi- loop antenna were most promising however.
Further 5m USB extension lead runs were handled without any problems- suiting device mounting in elevated signal sweet spots etc. Both ran warm,although reliably, & these Engenius/Seano USB units merit keen attention for demanding & more professional Wi. Fi setups. 2. 00. UPDATE- 5. 00m. W Alfa competitor alert !
For tight budgets & /or with signals nearby,just start with US$1. USB cheapies & experiment with DIY . As ADSL broadband web access will rarely reach blinding speeds, perhaps consider the original (2. Mbps . These may be fine in many barebones setups, although some may be . NZ's TV3 . Nov. 2.
Oct. 2. 00. 6 : Joint presentation, with Gladwin Mendez, of these . Mid Feb. 2. 00. 7 : An aluminium drink can 'flower' can give a suprisingly good (~6db?) signal boost!
Auckland Herald (NZ) article on the Oamaru TV station's $1. Cape Wanbrow'). Computer Power User for their July issue. Both the ALFA & Senao perform superbly beside cheap USB dongles,& often linked (even bare) to remote APs that the dongles couldn't even NS detect! More involved testing seems justified however, with transmitter power claims especially in need of verification. Both drew much the same ~3. A USB port working currents, & compared with a cheapie 4. W USB adapter (measured as drawing ~2.
A),this seems rather low for their much promoted.
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