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Thread: Radio Technican Element 2 Arrl Question

  1. #1
    I have some problems to understand this question see if there anyone who can help me:

    The question is T7A16 on the Element 2 test:

    If you increase your transmitter output power from 5 watts to 10 watts, what
    decibel (dB) increase does that represent?


    A) 2 dB

    B) 3 dB

    C) 5 dB

    D) 10 dB

  2. Software & Hardware   -   #2
    B. 3 dB

  3. Software & Hardware   -   #3
    Originally posted by jii_m@2 August 2003 - 01:03
    B. 3 dB
    How can you get 3?

    Don't tell me that you went to ARRL.org to look for the answer lolz

    Can you tell me how can you get 3?

  4. Software & Hardware   -   #4
    i remember i did this in physics last year...

    if i can be bothered to look out my notes, i might scan them in

    truth be told though, it's a bugger of an equation from memory
    <span style='font-size:14pt;line-height:100%'>BLAH</span>

    <span style='font-size:14pt;line-height:100%'>Wayne Rooney - A thug and a thief</span>

  5. Software & Hardware   -   #5

  6. Software & Hardware   -   #6
    Originally posted by balamm@2 August 2003 - 03:01
    http://www-personal.engin.umich.edu/~nzosc...ke/tech2003.txt
    dude i get the same thing

    But i dont wanna just get the answer

    I really wanna know why....

  7. Software & Hardware   -   #7
    Poster
    Join Date
    Mar 2003
    Posts
    3,597
    Can&#39;t recall, we don&#39;t use watts at all except for power consumption. All carried signal is measured in dB in cable.

  8. Software & Hardware   -   #8
    How can you get 3?

    Don&#39;t tell me that you went to ARRL.org to look for the answer lolz

    Can you tell me how can you get 3?
    10 log 2 = 3 ?

  9. Software & Hardware   -   #9
    Originally posted by jii_m@2 August 2003 - 13:23
    10 log 2 = 3 ?
    Why do u use log?

  10. Software & Hardware   -   #10
    Originally posted by leolaw@2 August 2003 - 21:45
    Why do u use log?
    my handwriting is a little messy...so here&#39;s a few scans that might help

    they&#39;re pretty big though, might take some time to load

    1

    2

    edit: links now inactive, due to space issues...
    <span style='font-size:14pt;line-height:100%'>BLAH</span>

    <span style='font-size:14pt;line-height:100%'>Wayne Rooney - A thug and a thief</span>

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