This is just a bigger version of previous coax antenna.
http://www.zero13wireless.net/foro/showthread.php?t=3964
http://www.digdice.com/2008/03/30/small-coax-omni-antenna-for-wifi/
There is no info available about gain or anything els.
Used coax is RG-213
On site also suggest some sort of franklin dipole :
I thing that this design will be fun to test.
May be will work ? What you thing ?
Found on http://www.zero13wireless.net/foro/showthread.php?t=3964
I cant find original site of this antenna there is links on Zero13wireless forum.
I cut a lot of coax without any success before time in attempt to make a coax omni antenna.
This thing here is looking different. But maybe will work.
This is the idea :
30mm in the beginig 1/4 wave - may be patching section.
40 mm of outer of coax is used to dephaseing sections.
60 mm sections as 1/2 wave radiators.
And that is.
Link to the original site whit pictures : http://wavetenna.blogspot.com
This omni antenna specification are available from Ovisilink or like AirLive.com WAE-085GP
Band : 2.4Ghz 802.11b 802.11g WIFI bands
Gain of 8.5 Dbi
Connector type - Female N-Type
Polarization - Vertical
Dimensions - 570 x 29 mm
And pictures are from the rt_rex site http://www.wavetenna.blogspot.com/
So this is a quite interesting antenna. This is the first REAL antenna that is similar to this strange picture that circulate on the internet :
The dimension did not match but the idea is very similar. quite interesting match really.
There is nothig on the net about this Radproject 2000 or anything about this upper design.
MSI RG60SE wireless router review.
I bought one for fun - just to see what is inside and to try to play whit it.
Price ~ 35 Euros
This picture may confuse You - this device has only one antenna on its back.
What is inside of the box - router, ac adapter and antenna, also two pages of printed documentation and a disk.
NO LAN cable! So You need to make or buy one to connect the router for first time configuration.
RG60SE front panel.
On the back side of the RG60SE router we have 4 port switch, WAN port, power in, reset button, rp-sma antenna.
RG60SE Ac adapter - output 0.8A at 9V this is the ways better than dlink or linksys strange voltages.
And finally antenna - as I said reverse polarity sma - surprise was that this is at least 5dbi antenna - whit two metal tubes and a spring, if anyone need a dimensions I will post them.
Now the fun part - let see what we have inside !
According to the speed I suspected that this is atheros device but nobody can be sure until you open and see the board.
everything open
Here it is closer look - Atheros AR2318 soc chip, interesting because Atheros do not have this chip listed in their product line. They had AR2317 which is only 54Mb as speed and it is used in WRT54G 7-th version I thing.
Here is a link to the Atheros AR5007AP-G platform - AP61
The main difference between AR2317 and AR2318 should be only the speed this is often in their products.
Block diagram and reference board. RG60SE is very closer to the Atheros reference board.
RAM chip is a 64Mbit Elpida chip, model S6416AHTA-75-E - datasheet may be fount on the Elpida page : E0439E70_EOL.pdf
Another chip Marvell 88E6060 is used for the lan part. marvell.com LinkStreet_88E6060.pdf
Last thing is the flash chip -Spansion FL016AIF, I am not sure but this should be the datasheet : s25fl016a_00_c2.pdf
So this is all about the RG60SE hardware, You can find a lot of similar devices around :
Linksys wrt54g ver.7 uses AR2317,
So this is just a TP-Link router just neet to know which one???
Its 108mb wireless router so it must be TL-WR642G which have 3 hardware revisions.
Ver 3 has Intel flash so its defiantly not mine and it also support WDS function.
But this is for now - I still cant find LAN cable to connect to mine new router 
T-link update firmwares www.everbesthk.com
Update and screenshots of RG60SE UI soon
LINKS :
Manual for RG60SE PDF file ~ 15mB
xbitlabs.com tl-wr542g_4 some of the pictures are from here.
pcpop.com some pics are from this site