Gain

Discussion in 'General Electronics Chat' started by Carlost, Sep 13, 2007.

  1. Carlost

    Thread Starter New Member

    Jul 9, 2007
    8
    0
    How do you determine the gain in a car antenna booster?? Pleas help Thanks.
     
  2. cumesoftware

    Senior Member

    Apr 27, 2007
    1,330
    10
    Normally the gain is defined by the relation Vout / Vin for a signal having voltage Vin. I presume that is the same with a car antenna, assuming that the signal received by the antenna is converted to voltage.

    Check this link:
    http://en.wikipedia.org/wiki/Gain

    PS: Google does wonders!
     
  3. JoeJester

    AAC Fanatic!

    Apr 26, 2005
    3,373
    1,159
    Gain is as cumesoftware stated.

    What specification did your car booster say on the packaging? Typically they are 10 to 20 dB gain.
     
  4. Carlost

    Thread Starter New Member

    Jul 9, 2007
    8
    0
    well that what im trying to find out it dint say what it was. i tryed to use the first method...Vin/Vout but it seems not to work. any other ideas??
     
  5. JoeJester

    AAC Fanatic!

    Apr 26, 2005
    3,373
    1,159
    20 * log (Vout / V in) will give you the gain in dB.
     
  6. nanovate

    Distinguished Member

    May 7, 2007
    665
    1
    Can you post the datasheet or mfg/partnumber?
     
Loading...