WiFi Satellite Dish

A Segment from TechTV's The Screen Savers. The Cable used is LMR400, refer to other videos i have posted in relation to this one. Google is a good soruce for making wifi satillite dishes or cantennas

Category:

Science & Technology

Tags:

• WiFI Dish
• TechTV
• The Screen Savers

[Black93gthatch84]

my only question is, are they using an amplifier? because i have an alfa card with a SMA connector on the end with a couple of differant antennas. I can get a low loss cable from that to the back of the dish. (they actually have one on amazon) and i can run it directly to the dish, but don't know if i should buy a small 1 or 2 watt amplifier.

[salem113]

@Black93gthatch84 they are not using an amplifyer (basically a piece of copper and a tin can). Not really sure if an amplifyer will work, well yes it would with signal but you could blow the wireless card. you might want to do a little more research on it or attempt at your own risk

[mel2000]

For the ordinary non-geek user they really should have gone into more detail on how to connect the antenna to your wifi card since most cards/adapters don't have the means to accept external connectors.

[salem113]

@mel2000 you have to remember this video is old most likely as of 2003. USB cards nowdays do not have the cabability to connect an external antenna, unless you modify one. People need to get creative if they want this to work. There are instructions online on google

[nnmk001]

having Just one high gain antennas is Usless for long range connectiion without a second high gain antenna on the other side you're trying to connecting to so basically because you have a powerfull high gain antenna does not mean you will be able to connect to wifis from miles away unless you have another high gain antennas on the other side so with just one high gain antenna it might pickup lots of wifis but connecting to most of them is impossible signal will be to weak!!!

[salem113]

@nnmk001 you have a point, the range is limited on this, it wouldnt go miles, you might get 1/4 of a mile. This could pick up signals from 4 blocks away (mc donalds is 4 blocks away from where i am at and i can pick it up with this). Its not a 14 dBi High Gain Outdoor Directional Antenna that could go about 3-5 miles. This is just a improve signal

[IXxhpnotiqxXI]

This is back before g4 took over tech TV, and the shows were ACTUALLY GOOD!

[pvx]

@Black93gthatch84 You might not need an amplifier if the antenna has enough gain. If you're using a 7dBi antenna now, you just might get adequate reception with one of the antennas featured here since the antennas they featured in this video can do 16-24 dBi, it just might make it sans amp...

[pvx]

@IXxhpnotiqxXI Yes, quality television programming in general had its last gasp when TechTV ceased to exist.  RIP, TechTV. :'(

[MacGyverinSpace]

@n1dp Put a Raspberry Pi or some other cheap computer right next to anntenae, and voila, Lossless without expensive cable!

[MacGyverinSpace]

@salem113 You can get models with antennae for fairly cheap on newegg or elsewhere.

[MacGyverinSpace]

Can I blast through ~5-10 meters of solid earth after abouta 200m wireless run? The Damn source is barely on the otherside of a crest of a nearby hill and I can't set up a relay. 

[n1dp]

LMR 400 6.8 db loss per 100 feet at 2.4 GHz. Not what they implied.

[CrewRite]

[question removed]

70k , so that's 70,000 meters , nice.

[CrewRite]

Give your friends a cheap rate for wireless internet. $5 a month or $15 and make the rate cheaper threw refer-a-friend, lol.