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Forum Antenna range extension with amplifier?
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  • dc-dc
  • controller
  • amplifier
  • knode
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  • antenna
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Antenna range extension with amplifier?

Latch
Latch over 14 years ago
I have an antenna that can deliver 1Mbps at 30 kilometers. Can the range be extended through the use of an amplifier?
 
Latch
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  • YT2095
    0 YT2095 over 13 years ago

    as a general rule, you will gain only a single `S` point for each doubling of power, so for instance you`re pushing 1W out, you`ll only get 3db gain (3`s` points) for pushing 4W, perhaps you may be better with a directional beam like a Yagi or Cantenna (depending on the frequency you`re thinking of of course).

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  • Former Member
    0 Former Member over 13 years ago in reply to YT2095

    The antenna gain solution is much better because you dont need to switch the amplifier from transmit to receive.  Being passive, antenna gain is more  like actually reducing the range.  If the link is line of sight (sometimes called R-squared propagation) you should get a doubling of range for each 6dB antenna gain you put  in there. 

     

    73 DE AA1LL  

    Mason, NH

    USA 

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  • Former Member
    0 Former Member over 13 years ago in reply to YT2095

    The antenna gain solution is much better because you dont need to switch the amplifier from transmit to receive.  Being passive, antenna gain is more  like actually reducing the range.  If the link is line of sight (sometimes called R-squared propagation) you should get a doubling of range for each 6dB antenna gain you put  in there. 

     

    73 DE AA1LL  

    Mason, NH

    USA 

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