200m possible with wifi? - Page 2

RichBa5tard · 9th August 2004, 20:00

I'm not sure whether I'm going for the indoor or outdoor model of the D-link ANT24-120(0/1).

Both are 12dBi (~=1000m > excellent), very cheap (62 and 66 euro at k&m), but the outdoor has a 50/50 horizontal/vertical coverage while the indoor model has a 80/23 degrees coverage. No 360/360, darn. : )

@bosw8er: 5.2dBi is about the same as a decent PCI wifi card, it's not really a signal booster in my humble opinion.

Sidney · 9th August 2004, 20:13

Read some of the back of forth on the matter; flexible antennae (omni / directional) will give better result. But, one thing I remember using wireless device in RF and IF in large building with lots of "metal structure" will have negative effect. Also, the number of people using Wi-Fi in the locale also have effect on performance.

I'm living in a two story house about 3,000 sq.ft.; the lot size is about 20,000 sq.ft. My laptop is working fine in my neigbor's house. However, I don't have other users in the area at all.

------------------------------------------

Oh, when signal strength is down below 50%, you may as well forget good connection.

187(V)URD@ · 9th August 2004, 22:08

Quote:

Originally posted by jmke
leak free meaning...

well pc magazine reviewed wifi.
On the cover in big letters ... WIFI NIET LEKVRIJ.

Ik kan wel opzoeken wat ze bedoelen onder lekvrij maar heb er atm geen tijd voor.

jmke · 9th August 2004, 22:10

probably "security" related, if you put up a wifi connection you have to set encryption + key etc

90% of people out there don't those this, companies included.. that's what the article was probably about.

the fact that you randomly quote a sentence from a magazine that uses the word "wifi" in their title without understanding or checking up on what they mean.. doesn't bode well for you

Sidney · 9th August 2004, 22:18

Yeah, 90% of the time your internet connection is free in a big city because; like Jmke said 90% of them don't set up WEP and Key security. The signal strength is sooooo damn good because there must be a dozen users out there opening up the "free" air wave just for you.

10th August 2004, 06:04

Quote:

Originally posted by jmke
leak free meaning...

... it's possible to secure it very well, big companies can rely on it's security

even if you have set up WEP encryption and your network is closed, it's not so hard to get in. you can get around MAC restriction too. if a company has a very well secured network (firewall etc.) and wifi, it's just like leaving the backdoor open

when I've got a 2nd machine here with a wireless connection, I'll see how long it takes to break my own security

Sidney · 10th August 2004, 06:09

The question remains how you setup share files; or how generous you are in many ways.

24th September 2004, 14:38

WiFi remains extremely leaky indeed. (securitywise)

the corp where my dad works mostly has fixed workstations with cat5 UTP connections, but many of the laptops run on WiFi. i did some jobs there and IT told me that since the corp deals with extremely sensitive (privacy) information the outside walls have been coated with special paint that stops any transmissions and the windows have been modded too (don't know how).

sounds like mission impossible or james bond to me, but it's true

nevertheless, this has little to do with the topic so i'll shut up now

Sidney · 24th September 2004, 14:42

Quote:

outside walls have been coated with special paint that stops any transmissions and the windows have been modded too (don't know how).

If TRUE, I certainly think otherwise, you are better off not to use WiFi or WiFi is not suitable for the company.

24th September 2004, 14:46

use a rotating 256 bit password AND MAC adress filtering.

Try beating that any time soon.

If someone over there opens a window, is that concidered a security leak ???

9th August 2004, 20:00	#11
RichBa5tard [M] Reviewer/HWBot ***** Join Date: May 2002 Posts: 3,344	I'm not sure whether I'm going for the indoor or outdoor model of the D-link ANT24-120(0/1). Both are 12dBi (~=1000m > excellent), very cheap (62 and 66 euro at k&m), but the outdoor has a 50/50 horizontal/vertical coverage while the indoor model has a 80/23 degrees coverage. No 360/360, darn. : ) @bosw8er: 5.2dBi is about the same as a decent PCI wifi card, it's not really a signal booster in my humble opinion. __________________ HTPC (mac osx): Mac Mini \| Core Duo 1.6Ghz \| 2GB DDR2 \| 26\" TFT Development (mac osx): Macbook \| Core 2 2.0Ghz \| 4GB DDR2 \| 250GB HD Games (win xp): E2160 @ 2.4Ghz \| HD3850 OC \| Asrock 4coredual-vsta \| 2GB DDR2

9th August 2004, 20:13	#12
Sidney Member Join Date: Mar 2004 Posts: 15,738	Read some of the back of forth on the matter; flexible antennae (omni / directional) will give better result. But, one thing I remember using wireless device in RF and IF in large building with lots of "metal structure" will have negative effect. Also, the number of people using Wi-Fi in the locale also have effect on performance. I'm living in a two story house about 3,000 sq.ft.; the lot size is about 20,000 sq.ft. My laptop is working fine in my neigbor's house. However, I don't have other users in the area at all. ------------------------------------------ Oh, when signal strength is down below 50%, you may as well forget good connection. __________________ lazyman Opteron 165 (2) @2.85 1.42 vcore AMD Stock HSF + Chill Vent II

9th August 2004, 22:10	#14
jmke Madshrimp Join Date: May 2002 Location: 7090/Belgium Posts: 79,021	probably "security" related, if you put up a wifi connection you have to set encryption + key etc 90% of people out there don't those this, companies included.. that's what the article was probably about. the fact that you randomly quote a sentence from a magazine that uses the word "wifi" in their title without understanding or checking up on what they mean.. doesn't bode well for you __________________

9th August 2004, 22:18	#15
Sidney Member Join Date: Mar 2004 Posts: 15,738	Yeah, 90% of the time your internet connection is free in a big city because; like Jmke said 90% of them don't set up WEP and Key security. The signal strength is sooooo damn good because there must be a dozen users out there opening up the "free" air wave just for you. __________________ lazyman Opteron 165 (2) @2.85 1.42 vcore AMD Stock HSF + Chill Vent II

10th August 2004, 06:09	#17
Sidney Member Join Date: Mar 2004 Posts: 15,738	The question remains how you setup share files; or how generous you are in many ways. __________________ lazyman Opteron 165 (2) @2.85 1.42 vcore AMD Stock HSF + Chill Vent II

24th September 2004, 14:38	#18
SuAside Posts: n/a	WiFi remains extremely leaky indeed. (securitywise) the corp where my dad works mostly has fixed workstations with cat5 UTP connections, but many of the laptops run on WiFi. i did some jobs there and IT told me that since the corp deals with extremely sensitive (privacy) information the outside walls have been coated with special paint that stops any transmissions and the windows have been modded too (don't know how). sounds like mission impossible or james bond to me, but it's true nevertheless, this has little to do with the topic so i'll shut up now

24th September 2004, 14:46	#20
FreeStyler Posts: n/a	use a rotating 256 bit password AND MAC adress filtering. Try beating that any time soon. If someone over there opens a window, is that concidered a security leak ???

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