How to Make Indonesia's WajanBolic or PanciBolic (USB)
6 Steps
My third instructables! Now I'm gonna teach you all Indonesia's Wifi Antenna made of wok.

NOTE: I didn't invent this cool thing.
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## Step 1: Gather the parts!

What you need:

2. Wok or the cover of a saucepan. (I use the cover of saucepan, because it's lighter).
3. USB WiFi
4. 3" PVC pipe. You need at least 1m. (depending of your wok size)
5. 1.25" PVC pipe. You need just a little of it, at least 5" long. Cut the middle (like in the picture)
6. Doff for 3" pipe (doff=pipe cover, holed in the middle. One of them connect to 1.25" doff using screw)
7. Doff for 1.25" pipe (stick aluminium foil inside then hole in midle, the other don't need to be holed)
8. Aluminium foil
9. Drill

If you don't understand, see picture
dragonclan1tnt says: Oct 2, 2011. 8:30 PM
this is how to get the focal point http://www.satsig.net/focal-length-parabolic-dish.htm dont know y they didn't include thins in tho
dan moulton says: Jul 10, 2008. 12:18 AM
Cool, how do you calculate the focal point? And whats a doff, haven't heard that term before.
jokoh says: Jul 20, 2011. 7:16 AM
doff = pipe cap
huang.wencong (author) says: Jul 10, 2008. 6:32 PM
To find the focal point, use : D2/(16*d)
where D is diameter and d is depth.
A doff is the cap of the PVC pipe. That's what you call it here in Indonesia.
aredee says: Jul 12, 2011. 8:47 PM
please tell me how we count the focal point?
transitionality says: Feb 19, 2010. 3:33 PM
The design is ingenious -- the way you've combined a parabolic antenna with a waveguide antenna is both stable and cheap! Well done.

However, I don't see why you have the 1.25'' pipe piece in there. What does it do? Wouldn't the design work just as well without that piece?
tongak says: May 15, 2011. 12:44 AM
i think the small piece work as holder for the wifi modem
CMIIW
tezakuri says: Apr 27, 2011. 9:09 PM
hebat pisan mas...pokonamah hidup indonesia.......
sunarno says: Feb 26, 2009. 12:26 PM
I have use this on to share internet connection with my neighbourhood. Detail information for this wajanbolic I found on this link http://opensource.telkomspeedy.com/wiki/index.php/Wajanbolic_e-goen
legless says: Mar 1, 2009. 3:57 AM
What an extremely unuseful link to anyone who does not read Indonesian languages.
fegundez1 says: Mar 1, 2010. 3:14 AM
zgeng says: Feb 5, 2010. 3:47 AM
wahhh..mantap bro...udah w buktiin wajanya mang top wat nyolong wifi

indonesia jaya...
bayucandra says: Jan 19, 2010. 5:13 AM
Millmore, i am not sure if it is have to be 1m, but i think you have to check the calculation detail about this equipment. There is standard calculation for this equipment including detail about the pipe length needed, i was read it some month a go. You may find at the link some where he gave.
But the bad news, standard calculation have been made in Indonesian language, you need a dictionary maybe :).
advante says: Sep 20, 2009. 8:38 PM
Saya butuh yang buat internetan gratis. Rumor kata orang, temen bisa pake sampai 500 kbps gratis, tanpa batas. Butuh yang itu. ___________________________________________________________ I need that for free internet. Rumor, peoples and friends said it can reach until 500 kbps, free without limit. I need that one.
pyroal says: Jan 13, 2010. 12:38 PM
what language are you speaking
chiangkool says: Sep 9, 2009. 12:39 AM
edian ik.. indonesia ?? hehehe.. perlu di paten nich.. sebelum di colong ma malaysia nich..
grimrp3r says: May 26, 2009. 2:11 PM
hah? indonesia? baru tau gw. btw tuh panci ukurannya berapa?
koma4194 says: Apr 17, 2009. 10:34 PM
i ve try this entenna Using Aztech 2.0 USB modem. but long extend cable cannot be detect by my PC.. My PC USB hub is 2.0.. any idea.. pls help
Xipir says: Mar 4, 2009. 12:08 AM
Juragan, tuh tutup panci diameter brapa yak?
conradturner2001 says: Mar 2, 2009. 2:58 AM
There are several links on the web including the formula you need to calculate the focal point for the parabola. Have used a seive and similar to gain access to free internet services outside normal range of usb dongles and have also managed to link across our local park between laptops (1km+) just try words like diy wifi antenna. good luck
Wafflicious says: Mar 1, 2009. 9:38 AM
whats it do?
dariel24 says: Feb 27, 2009. 2:23 AM
do you know what WajanBolic or PanciBolic means? it means wok or pan lid bolic (parabolic counterpart) wok and pan lid is cheap and common in indonesia LOL
ilmubebaspakai says: Feb 25, 2009. 7:24 PM
yay... Indonesia, Obama learned such stuffs while he was a kid here LoL Obama nyalon juga ga yah jadi presiden Indonesia?
dariel24 says: Feb 27, 2009. 2:20 AM
bener tuh. dia SD dimana? agak lupa juga nih tapi yang gw tahu masih di jakarta kan?

indeed. where is his Elementary School? i'm bit forgot. but what i know is it's still in jakarta
Vindoch says: Feb 26, 2009. 7:10 AM
Hai indonesia! gile baru pertama kali gua liat ada comment bhs ind di sini bangga aku!
dariel24 says: Feb 27, 2009. 2:17 AM
setuju! keren juga nih...
perasaan gw cuma pernah liat comment inggris dan sekarang indonesia di instructibles ini... yay! cool!

Agree! it's cool
i only see english and now indonesia comments in this instructibles... yay! cool!
Killa-X says: Feb 26, 2009. 12:51 PM
It's too bad you couldnt probably get a wifi connection with an ipod using this.. Im confused. Is this a Wifi range booster and a Wifi Pickup range boost? I know some devices allow external antennas for long-range pick up.. But not ipods!
Kaljakaaleppi says: Feb 26, 2009. 11:56 AM
I have used succesfully a sieve for a thing like this... Without measuring anything at all, we did manage to get an incrased signal while lying on anchor i a bay at a beautiful tropical location.
bluestripe says: Feb 26, 2009. 8:30 AM
is a wifi max ok to use as the wifi thing
millmore says: Feb 26, 2009. 6:06 AM
Are you sure you need 1m of 3" pipe? Your picture shows about 30cm. Step 3 is a little vague. How long should the foil and non-foil sections be? Is the 1.25" pipe there to hold the USB stick in place? If so, how does it do that? Thanks Martin
NeuroPulse says: Feb 26, 2009. 5:30 AM
Greetings, How about some descriptive information in the introduction on what this thing is. What is the range? Anyone have a link on this? I can usually find anything in wikipedia, but can't find this. Thanks
huang.wencong (author) says: Feb 25, 2009. 3:44 AM
WOW!!! Thanks everyone!!! My Instructable IS popular.....
Shadetree Engineer says: Oct 4, 2008. 8:02 PM
Very nice way to mount a collector to a dish. I would wonder about the way the adapter is mounted though, the distance into the 3 inch tube that the adapter is placed can change the performance. At least that is what I found on a tube I built out of a fire extinguisher measuring about 3 inches in diameter. At first I had placed my adapter all the way in, like you did here, with just the connector outside of the tube, but I found that I got a better signal by pulling the adapter most of the way out. More info here: Wireless Internet Cantenna Wrapping PVC in foil is a good idea, I use a similar approach on the cone of my last wi-fi antenna: Conetenna I would expect the PVC to have no reduction in signal. The collector you built will probably cover a larger dish, I've heard from some really picky designer types that the outer edge of a parabolic dish shouldn't be counted on for much of a signal, so if you can find a reflector that extends a bit beyond what the collector is covering, the better. I would recommend combining your PVC collector with this: Parabolic Reflector
stratohellsing says: Aug 14, 2008. 12:18 AM
Uber Cool... Time for wifi hacks... LOL

*Keren banget... waktunya nyolong wifi gratisan, hahaha*
inertia18 says: Aug 11, 2008. 7:42 AM
May I ask, can the signal/radio waves pass thru the PVC, as it shown here its inside the PVC and theres no metallic or foil inside to reflect thru the saucepan lid/wok. Can you enlighten me. I like to work on this. thanks in advance:)
electrophobia says: Jul 7, 2008. 12:06 AM
What is the difference between a single USB wi-fi and this thing?
frollard says: Jul 15, 2008. 3:52 AM
This transforms the usb from omnidirectional (relatively weak in all directions) to a 'beam' antenna, which focuses the signal to be entirely directional. If you know where you're shooting, these are much better at attaining a strong signal to that destination. With a cantenna on each end of the wifi connection, you can shoot for miles (google wifi shootout). I think the record is over 40 miles with a standard unamplified signal, between two mountain peaks in death valley. To do that they use huge repurposed satellite dishes.
huang.wencong (author) says: Jul 7, 2008. 12:56 AM
Of course there is a big difference. This has higher gain.
electrophobia says: Jul 16, 2008. 12:59 PM
so here is your five stars.. Great instructable..