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WiFi adapter & tv antenna

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6 replies to this topic

#1
tal ormanda

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I have an hdtv antenna sitting here and my wifi adapter that has an external antenna that unscrews, can the two be connected to work together?


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#2
jumper

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Your antenna is either a VHF or UHF (or a combo) antenna (there is no such thing as an "HDTV" antenna). It is tuned for a few hundred MHz, not 2.4 GHz. The cable also has the wrong impedance for wifi. If it is powered (has an amplifier), it cannot transmit, only receive.

I really should just say :no:, but if you're not afraid of frying the wifi adapter (or the antenna if it does have a built-in amplifier) please try it and report your findings! For a variety of reasons, however, you are more likely to have better success with a long wire.

For a directional antenna, a "cantenna" is a better place to start than trying to adapt a tv antenna. After much research and experimentation several years ago, I settled on using a seven inch A/B stick antenna inside an aluminum pie tin reflector crudely bent into a pseudo-parabolic shape.

My recommendation is to use the biggest wifi antenna you already have along with a metal reflector of some kind.
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#3
tal ormanda

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http://www.tp-link.u...del=TL-ANT2424B ?



or do you have any that you can link to would be fine.

Edited by tal ormanda, 14 August 2012 - 03:06 AM.


#4
jumper

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Reflectors:
Deep Dish Cylindrical Parabolic Template
google.com/images?q=wifi+antenna+reflector
Cantenna:
Posted Image

Design feedback requested:
IHAtool - IpHlpApi tester; call various functions and report results
--status-> framework is solid; 22 api's fully supported; preview release coming soon
ComDlg32 wrapper - ComDlgEx meets IpHlpApi wrapper
--status-> PrintDlgExW working in latest SumatraPDF 8^)
Future projects: ImportPatcher40 - dialog interface; Kexter - IP40+Ktree+Kexstubs

#5
Tripredacus

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Donator

there is no such thing as an "HDTV" antenna


This is incorrect. You can buy an over-air HD tuner that definately has an antenna but they usally aren't very good. When I used to have one, I built my own antenna using a speaker, a VHF TV antenna, an Atari VCS RFU switch and a metal coat hanger. It didn't look very good, but the picture quality was awesome. :thumbup
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#6
tal ormanda

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Mk thanks.

#7
jaclaz

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Just for the record:
Antenna on the Cheap (er, Chip)
http://www.oreillyne...og/view/wlg/448

Spanish:
http://web.archive.o...napringles.html

Spanish double (and USB :w00t:):
http://carzel.wordpr...sera-para-wifi/

jaclaz




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