How to Measure a Transmitter and VSWR with a Power Meter

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  • Опубліковано 5 жов 2024
  • How to measure the output power of a transmitter and the VSWR of an antenna system using a Bird Model 43 Directional Wattmeter.

КОМЕНТАРІ • 19

  • @hotforit
    @hotforit 11 років тому +1

    If I have a 250 watt element I use the top scale (goes to 25) on the meter right? The RF calculator is fantastic!

  • @BirdTechnologies
    @BirdTechnologies  13 років тому +1

    @cbradiohawaii Thank You for your comments, we really appreciate it!

  • @eogg25
    @eogg25 12 років тому

    thanks for the demo

  • @ianjamandron4262
    @ianjamandron4262 9 років тому +1

    reflected power is 1% to 4% of the forward power.

  • @andreaspersson1886
    @andreaspersson1886 4 роки тому

    The antenna needs some ground plane to work correct, i think a car roof will show you a more correct result...

  • @ERICtheLATE
    @ERICtheLATE 3 роки тому

    That lil mag mount will talk all over when you slap it on top of the fridge or other tall, metal appliance.

  • @qualin1974
    @qualin1974 3 роки тому

    First time I've ever heard of VSWR referred to as "Viswar"

  • @1903A3shooter
    @1903A3shooter 11 років тому +2

    So subtract the 2 watts ref. from the forward power and get 4 watts forward and that is your correct power.

    • @Pioneer936
      @Pioneer936 4 роки тому

      Where does the 2.4 watts go???

  • @داكرود
    @داكرود 6 років тому

    How we can measure SWR

  • @punishedexistence
    @punishedexistence 13 років тому +1

    Cleveland!

  • @BirdTechnologies
    @BirdTechnologies  12 років тому

    @eogg25 Your welcome!

  • @Pioneer936
    @Pioneer936 4 роки тому

    Where has the 2.4 watts gone????

    • @ERICtheLATE
      @ERICtheLATE 3 роки тому

      Into any grounded box, mic cable or wire, that was a counterpoise, because the antenna does not satisfy resonance, so this becomes heat and current the microphone audio amplifier, voltage regulators, and rf final has to eat, while transmitting the current rf wave.
      That is really good VSWR's for an antenna not on an actual countepoise.

    • @ERICtheLATE
      @ERICtheLATE 3 роки тому

      It is accidental BOSE tech, a wave being transmitted, gets nulled by a wave returning 180° out of phase, but the heat and current is still there. Also could strain the power supply and add ac hum to signal, or a feedback squeak.

    • @Pioneer936
      @Pioneer936 3 роки тому

      Reflected power joins the forward power or the incident wave back to antenna and radiated by the antenna, it does not heat up your finals of your transmitter, or into any other cable or mic, your are misunderstanding common mode current with reflected power

  • @luisclaudiofaria8718
    @luisclaudiofaria8718 2 роки тому

    Top

  • @daveN2MXX
    @daveN2MXX 11 місяців тому

    I have been saying "viswar" wrong all this time

    • @BirdTechnologies
      @BirdTechnologies  11 місяців тому

      Thanks for watching! Don't worry, pronunciation can be tricky sometimes. We appreciate your support!