Results 1 to 8 of 8

Thread: Rear Deck Mounted WIFI antenna

  1. #1
    Newbie
    Join Date
    Jan 2005
    Location
    CT
    Posts
    33

    Rear Deck Mounted WIFI antenna

    Wondering why nobody has made any pre-made pvc slim cantennas that can mount in the reardeck of the car with velcro to hold it down

  2. #2
    FLAC NiN^_^NiN's Avatar
    Join Date
    Aug 2004
    Location
    Australia, Melbourne
    Posts
    1,230
    cause they look cantastic

    I don't know
    CarPC Status:
    GPS: 99%
    Hardware: 99%
    Software: 92%
    Case Install: 99.9%
    Dash Install: 100%
    Car Install: 72%

  3. #3
    Low Bitrate
    Join Date
    Jan 2005
    Posts
    56
    who here's using a cantenna? I'm just using my little antenna that came with the PCI card right now, but I'm about to remove the FM radio antenna from the car and replace it with a 20-30 inch boom antenna, then install an FM antenna onto the window glass or use a dakota digital underdash FM antenna. I'm not too worried about FM reception, that's easy to get, so I'd rather just have one good big WiFi antenna. The reason I ask about cantennas, is that they are directional antannas. They will give the greatest distance, but in a mobile vehicle, I can't see any reason why you would use anything but an omnidierctional antenna. I want the freedom to park in the street or the driveway, drive around wherever, and still get a signal, without aiming an antenna. Just a thought. I hear cantenna alot here, so I just wondered, but maybe there's an omnidirectional variety I'm not aware of.

  4. #4
    Constant Bitrate
    Join Date
    Oct 2004
    Posts
    131
    Because the cantenna is VERY directional. If you put it on the rear deck of the car, you would only be able to see signals in the 15-30 degrees of where that can is pointed. Makes it very hard to aim and drive around at the same time. You really have to stick to omnidirectional antennas with a car, that way you are sure to not miss a signal. There are omnis running up to 12+ db gain. True, you can get more with a parabolic dish or a cantenna, but they would only be useful if you knew ahead of time where you needed to aim the antenna.
    Dave

  5. #5
    Newbie
    Join Date
    Jan 2005
    Location
    CT
    Posts
    33
    fab-corp has some cheap 5db omni mag mounts that are 6" tall.. mabe ill get one of those

  6. #6
    Maximum Bitrate grepzen's Avatar
    Join Date
    Jul 2004
    Location
    VaBch VA
    Posts
    575
    <start laughing>
    1) can't netstubmbler (& gps) 'map' WiFi hotspots?
    2) can't a servo be used to keep the cantenna 'aimed' at the nearest hotspot?
    </end laughing>

    no really.. stop laughing.
    •Micke

  7. #7
    Constant Bitrate
    Join Date
    Oct 2004
    Posts
    131
    I'm glad you were laughing, cause thats funny. It's an idea I had, Actually I wanted a 3dof parabolic dish on the roof of my truck, controlled with servos and a phidget interface. Then I realized it would be VERY obvious what I was doing, and writing the tracking software would be a pain. Besides, with an amp and a good omni, I think I'll do fine.
    Netstumbler won't even pick up hotspots without the directional antenna pointed at them. The GPS plotting is not very accurate, it just drops down the location to an approximate area, so having it train to point the antenna at a hotspot wouldn't work. I have a big parabolic dish with a biquad feed that I use around my neighborhood. The dish gives me about 25 db gain, it was a directv dish. I can pick up signals from 1/2 mile away through buildings.

    Anyways, the servo controlled thing could be cool, but it'll be a big contraption and a pain to find the signal.

    Dave

  8. #8
    Maximum Bitrate grepzen's Avatar
    Join Date
    Jul 2004
    Location
    VaBch VA
    Posts
    575
    •Micke

Similar Threads

  1. How good is your Wifi Antenna?
    By Custommx3 in forum Wireless Communications
    Replies: 58
    Last Post: 03-08-2007, 12:03 PM
  2. Tall Wifi Antenna
    By EBFoxbat in forum Wireless Communications
    Replies: 18
    Last Post: 11-22-2005, 07:43 PM
  3. Rear window defroster as antenna?
    By Nico3k in forum Wireless Communications
    Replies: 45
    Last Post: 03-24-2005, 01:28 PM
  4. rear mounted installation
    By suprthug8d in forum General Hardware Discussion
    Replies: 4
    Last Post: 08-28-2004, 12:32 AM
  5. Any way to use your car's antenna as a WiFi antenna?
    By NoNonsense in forum Wireless Communications
    Replies: 26
    Last Post: 07-17-2004, 10:34 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •