ab biasing

Discussion in 'General Electronics Chat' started by hardrock, Nov 16, 2012.

  1. hardrock

    Thread Starter Member

    Nov 16, 2012
    30
    1
    Is it better to run ab biasing
    on a cb amp for am useage???
     
  2. MrChips

    Moderator

    Oct 2, 2009
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    What the ....?
     
  3. JoeJester

    AAC Fanatic!

    Apr 26, 2005
    3,373
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    Are you talking about an external amplifier to exceed the 5 Watt power limitations?
     
  4. R!f@@

    AAC Fanatic!

    Apr 2, 2009
    8,750
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    continue...F?
     
  5. hardrock

    Thread Starter Member

    Nov 16, 2012
    30
    1
    Guess , i asked the wrong question.
    every where i read is that class c
    amps want work on am. they are for
    cw or fm. yet the market is full of
    the class c amps. and the majority
    is used on am. i asked a simple
    question. will a class ab sound better
    on am or does it matter. not here 4
    a pissin contest. just a answer. thanks tony
     
  6. MrChips

    Moderator

    Oct 2, 2009
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    Sorry, couldn't help it. The answer is only as good as the question.
    Ask an obtuse question and get an obtuse answer.
     
  7. bertus

    Administrator

    Apr 5, 2008
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  8. hardrock

    Thread Starter Member

    Nov 16, 2012
    30
    1
  9. vk6zgo

    Active Member

    Jul 21, 2012
    677
    85
    Pretty good guess is that it isn't!

    Many of these amps aimed a "CBers" are not.
    It's not that the people making them are lacking in knowledge--it's more that they don't care!

    On a power meter you may see your 100w or whatever,but a lot of that power is not on your frequency.

    Instead,it is spread over both the CB band,& adjacent bands,due to combinations of your carrier,& multiples of your modulation frequencies mixing to make an unholy mess.

    You will also probably appear at multiples of your channel frequency,on other bands used by other people who won't like it in the least.

    Those folks who pointed out that CB amps are illegal were simply pointing out the truth.

    How good is your antenna?
    The legal output through a better antenna may get you further than 100watts into a lousy one!
     
  10. Audioguru

    New Member

    Dec 20, 2007
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    896
    Since the original post was full of abbreviations, I thought "cb amp" was a "common base amplifier", not a "CB radio transmitter".

    I also thought that "am useage" was "I am using", not an AM radio transmitter.

    Is this how people text on cell phones? Do they know what anybody is talking about?
     
  11. hardrock

    Thread Starter Member

    Nov 16, 2012
    30
    1
    Sorry you didnt understand the abreviations
    that explains why you cant answer the
    question!!!
     
  12. Audioguru

    New Member

    Dec 20, 2007
    9,411
    896
    I always SPELL OUT everything so everybody understands.

    But your abbreviations left me guessing.

    I have used and seen many common-base (cb) amplifier transistor circuits but I never had a cb radio.

    When you said, "am useage" then I did not know your were talking about Amplitude Modulation.
     
  13. MrChips

    Moderator

    Oct 2, 2009
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    We generally know what CB and AM means in the context of radio transmission. But never use abbreviations because not everyone may understand your meaning. Always spell out abbreviations the first time you use them unless the context is obvious.

    In this case your context was not obvious.
     
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