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Starting to modify

Discussion in 'CB Radio Modifications' started by QuietStorm, Sep 9, 2017.

  1. QuietStorm

    QuietStorm
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    I've always learned more and faster by myself for free. Though school has it's uses I suppose. Which is why I need heaps of old/burnt out radios to make mistakes on.


     

  2. QuietStorm

    QuietStorm
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    As I've said, I'm not planning on making money from this, it will be a hobby for me, Doesn't make sense to waste thousands on school for something that isn't going to make me money. Although I don't mind spending money on the hobby itself.
     
  3. rabbiporkchop

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    Having a pretty good understanding of physics is a prerequisite.
     
  4. Captain Kilowatt

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    I loved physics! Yeah, yeah....OK I am a bit crazy. :confused:
     
    #19 Captain Kilowatt, Sep 11, 2017
    Last edited: Sep 11, 2017
  5. loosecannon

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    physics?

    meh...

    It's all theory, and i've always been more swayed by real-world results than theories.
    LC
     
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  6. Captain Kilowatt

    Captain Kilowatt
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    Thank God the likes of Michael Faraday, Nikola Tesla, Alessandro Volta, Heinrich Hertz, Georg Ohm, Joseph Henry, James Clerk Maxwell, Hans Christen Orsted, Oliver Heaviside et al developed those theories that are used today to achieve real world results.
     
  7. rabbiporkchop

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    Without being able to do a mathematical calculation it's hard to choose the right component to achieve a desired result
     
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  8. QuietStorm

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    But maths is hard. Thankfully, I'm not uneducated despite my contempt for the school system in this country (US).
     
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  9. loosecannon

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    It was a joke brother. LOL

    I'm pretty sure Rabbiporkchop is an administrator of the NRO. He is always bashing them in order to keep his membership a secret.
    LC
     
    #24 loosecannon, Sep 11, 2017
    Last edited: Sep 11, 2017
  10. rabbiporkchop

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    I joined out of morbid curiosity and lasted about 5 minutes until I realized that when science conflicts with a groups agenda it's not a pretty scene.
     
  11. loosecannon

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    I think i've heard of these types of scientific conflicts happening in the past LOL.
    People with agendas tend to want to underplay any sound science that renders their arguments moot.
    One particular CB shop comes to mind...


    Anyway, i have helped derail this thread long enough.
    Quietstorm (wooosh), if you're still reading along, have you started buying parts or equipment yet?

    here is a great article on building your own dummy load, which is an absolute essential for any CB hobbyist to have. http://www.k4eaa.com/dummy.html
    LC
     
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  12. rabbiporkchop

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    Understanding how impedance relates to frequency response is kind of critical. The stuff goes so deep I definitely recognize as a sonar technician in the Navy that I'd be getting in over my head if I even attempted to understand all this stuff. Here's a pretty cool article from MIT on this subject.
    Watch out for all those red herrings out there.

    https://ocw.mit.edu/high-school/eng...onics/lecture-notes/MITHFH_lec_impedances.pdf

    If you just want to be a quickie repairman without the ability to engineer something then ITT Tech does offer courses.
    If you want to master all the nuances of sound and the human voice as well as RF engineering and Sound Engineering and electrical engineering to be able to manipulate your sound in a transmitter now you're getting into a really deep subject that requires a lifetime of study.
     
    #27 rabbiporkchop, Sep 12, 2017
    Last edited: Sep 12, 2017
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  13. nomadradio

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    I like Richard Feynman's way of describing science.

    "It's a way of not fooling yourself">

    73
     
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  14. rabbiporkchop

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    Richard Feynman's perspective works sometimes, but I kind of like this guy's perspective. I guess it's kind of helpful to be able to think outside the box.
     
  15. loosecannon

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    for those that don't want to wade through this article, i will simplify it for those that want to understand how this relates to the audio path through a two way radio such as a CB.

    in your audio path you will find both series and parallel capacitors. (the parallel capacitors are used to mimic a series inductor since they are cheaper)

    if you increase the value of the series capacitors, you will increase the bass response of the radio.
    By the same token, if you decrease the value of the parallel capacitors, you will increase the treble response of the radio.

    This goes for the mic audio path as well as the receive audio path (both become the same path at some point).

    Any CB technician with an education knows how to do this, it's just that some of them really try to impress you with how difficult it is in order to place themselves above the others and in turn, get your business.

    RPC, this article is not hard to understand and the math is not that complicated.
    I'm sure that with a little googling while you are reading it, you would get it easily.
    LC
     
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