wifi cable - Page 1
Forum section: electronics / beginners

author: Unknown
author_rank: Unknown
timestamp: October 10, 2013, 10:52:35 pm
content: Hello. as i post in another of mine post..im using a sattelite dish to boost my wifi signal ..but the problem is that i need to put my dish on the roof and the wifi adapter on my pc and its about 6 meters ..will i lose signal if i use 10 meters of wifi cable?..i dont know much about electronics cuz im learnig by my self thx

author: Stonent
author_rank: Super Contributor
timestamp: October 10, 2013, 11:05:42 pm
content: Who are you borrowing internet from?Also unmodified satellite dishes are unsuitable for 2.5ghz operation as well as the coax cable is also not suitable.

author: tehmeme
author_rank: Regular Contributor
timestamp: October 10, 2013, 11:51:36 pm
content: Quote from: wilfred on October 10, 2013, 11:22:37 pm

author: Stonent
author_rank: Super Contributor
timestamp: October 11, 2013, 12:31:59 am
content: http://www.kilgorelabs.com/blog/?p=80

author: tehmeme
author_rank: Regular Contributor
timestamp: October 11, 2013, 12:58:49 am
content: That was rude of me.I remember a few years ago there were wifi distance competitions.I was laughing because I misread the punctuation. I had an image of people using Pringles cans, to take things out of a deep fryer.It's way past my bed time.

author: ve7xen
author_rank: Super Contributor
timestamp: October 11, 2013, 01:29:00 am
content: USB is technically only rated up to 5m. It will probably work at 6m, but is out of spec. Additionally I have seen quite a few USB WiFi dongles that draw more current than USB specifies, which could cause voltage drop problems with a long run. If you try this, use the best quality cable you can find.The "right" answer is to use Ethernet. You can use something like an Ubiquiti Bullet to put the radio at the antenna, with Ethernet backhaul back to your network. It is of course a lot more expensive than a USB WiFi dongle. Depending on how much gain you need, you can get similar devices with a built in directional antenna for the same (or sometimes less) money that are also weatherproof and get power and data over a single Ethernet cable. Ubiquiti also makes gear like this (though they seem to be getting out of the "generic" 802.11 market, which is a shame), as do Edimax and EnGenius.

author: smashedProton
author_rank: Frequent Contributor
timestamp: October 11, 2013, 05:11:08 am
content: Why not just make a yagi? Do you realize that directional antennas wouldn't actually be any good because you would just move out of their field. Unless you are making a bridge, then why not just lay a cable?

author: os40la
author_rank: Regular Contributor
timestamp: October 11, 2013, 05:49:52 am
content: Quote from: tehmeme on October 11, 2013, 12:58:49 amI read it that way too and had the same image as you..

author: ve7xen
author_rank: Super Contributor
timestamp: October 11, 2013, 06:48:32 am
content: Quote from: smashedProton on October 11, 2013, 05:11:08 amHuh? A yagi is a directional antenna.

author: PA0PBZ
author_rank: Super Contributor
timestamp: October 11, 2013, 07:32:47 am
content: Quote from: Stonent on October 10, 2013, 11:05:42 pmIf you are thinking sattelite dish complete with LNB I agree, but a 'naked' sattelite dish with a Wi-Fi antenna mounted in the focuspoint will work, although the gain will be less because the frequency is about 1/4 of the sattelite signal. (a 30 cm dish will have a gain of about 30dB on 10 GHz and about 17dB on 2.4 GHz.)

author: G7PSK
author_rank: Super Contributor
timestamp: October 11, 2013, 10:20:48 am
content: Take a look at this web site they have out door wi fi antennas and boosters plus all the co ax you would need.http://www.wifi-antennas.co.uk/antennas.htmlhttp://www.l-com.com/wireless-antennahttp://uk.wifi-link.com/index_ad_at_09.phphttp://www.radiolabs.com/Articles/wifi-antenna.html

author: madires
author_rank: Super Contributor
timestamp: October 11, 2013, 11:59:53 am
content: Put an access point (in client mode) as near as possible to the antenna and run an ethernet cable to your PC. That gives you minimal problems with the attenuation of the antenna cable and the ethernet cable may be up to 100m long for 100BaseTX. Also the ethernet cable is less expensive and got a smaller diameter than a proper coax cable like RG213.BTW, "wifi cable" is an oxymoron :-)

author: michael18
author_rank: Newbie
timestamp: October 13, 2013, 06:51:54 am
content: That is what i am trying to do ut pitch the signal to another receiver .

author: alxnik
author_rank: Regular Contributor
timestamp: October 13, 2013, 03:14:45 pm
content: an 80cm dish with a wifi antenna purpose built for dishes (they exist, I have one, don't remember where I bought it) with gain of 9dbi, will have a total gain of about 26dbi with an angle of ~5 degrees. With a cost of ~50 euros for both, it's a pretty good deal. If you compliment this setup with a wifi router which can work in client mode (I guess 30 euros for a used one?) you don't even need an expensive cable run. You then run an ethernet cable with DIY PoE for the router and you are set.I had this setup working for about 2 years and I had a stable link of ~6km to an outdoor omni antenna, but if you put dishes on both sides of the link, 15km is doable although you will have to do a lot of fine tuning of the dish position. Line of sight is necessary.Keep in mind that it is illegal to have total power of more than 20db (at least in europe). With a wifi module with 10dbm tx power, you are already at 36db which is highly illegal.

author: Unknown
author_rank: Unknown
timestamp: October 13, 2013, 05:45:56 pm
content: Quote from: wilfred on October 10, 2013, 11:22:37 pmbut ill lose allot of signal in the USB cable

author: SeanB
author_rank: Super Contributor
timestamp: October 13, 2013, 05:58:32 pm
content: USB will do a long distance if you want, use a pair of those USB to Cat5E cable adaptors if you need more than 5m of length, which is the longest USB cable I have around.

author: madires
author_rank: Super Contributor
timestamp: October 13, 2013, 07:13:31 pm
content: Quote from: SeanB on October 13, 2013, 05:58:32 pmHow much does a pair of those adapters cost? How much an access point?