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Rbertalotto's avatar
Rbertalotto
Explorer
Feb 02, 2016

25 MILES WiFi Booster!!!

My local ham radio club sends and receives WiFi from Marthas Vinyard to New Bedford, Massachusetts.....25 MILES away!!!

Check it out here on this video

https://youtu.be/nmyW5ykRX0M?t=26

https://youtu.be/nmyW5ykRX0M?t=26
  • Rbertalotto wrote:
    It's only a 4 watt amplifier.....But like he says, the parabolic antenna increases this power many times.
    I didn't bother to watch the whole thing, but at first glance my guess is the gain of that parabolic is somewhere between 18-23db. If you average that to around ~20db with 4watts into the feed horn, that's 400 watts ERP. So a 25mile link is nothing, but where do you plan on mounting it on an RV? AND.... likely the claimed 25 mile link is with a pair of these in open and unobstructed space, right? So talking to the local CG "free WiFi" will likely be reduced to hundreds of feet, not even miles.
  • Every thing old is new again.

    In the early days of WiFi this was a very popular topic in this forum. Many of us built our own antennas using colanders, sieves etc. They worked remarkably well.

    The original website is gone but somebody took the pics and posted them.
    My pics are still up there, the last one at the bottom.

    http://wajantenna.blogspot.ca/
  • It's only a 4 watt amplifier.....But like he says, the parabolic antenna increases this power many times.
  • It looks like they are using a massive amplifier and a well designed antenna. Very nice.

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