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Jak dostroić Maxon CM 70, by uzyskać pełną moc wyjściową na kanale 20?

dinoni123 02 Lis 2013 11:41 1773 5
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  • #1 12905977
    dinoni123
    Poziom 9  
    Hello
    I'm having a strange issue with my CB radio Maxon CM 70.
    I have change output transistor 2 pars one driver 2SC2314 and power 2SC2078 and it look like now CB work, but I don't have all output power. What is strange on 1 channel I have 1W on 20 channel I have 1W also on "de" band 45 channel (26.605) I have 3,5W which is good. So, someone told me that even if I change output transistor of the same time CB must be tuned through some trimmer potentiometer or "pots".
    Do you know which trimmer or pots most be corrected to get again on my output on 20 channel 4W (when all work fine I had near 4W more like 3,5W which I have on "de" band (26.605) 45 channel.
    All that I have courage to touch is AM/FM PWR trimmer please see picture in attachment.
    If is not problem for you please in few word explain to me which steps I must make to correct this anomaly.
    (max328ct001@yahoo.com)

    Thanks & Regards
    Jak dostroić Maxon CM 70, by uzyskać pełną moc wyjściową na kanale 20?
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  • #3 12907510
    dinoni123
    Poziom 9  
    SP5IT napisał:
    Not much to tune. L300 and L301 for maximum output power.
    Maybe capacitors in pifilter are out of spec and that is a reson of low power.
    Mike


    Can you Please be more specific, can you put on picture where is L300 & L301,
    also capacity in pfilter, can you be more cpecific.

    Thanks
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  • #4 12912891
    Konto nie istnieje
    Konto nie istnieje  
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  • #5 12913126
    dinoni123
    Poziom 9  
    Sorry but I didn´t understand your mail, can you please be more specific, what to check, can you give me exact pleace where I can find problem.

    Thanks
  • #6 12913438
    Konto nie istnieje
    Konto nie istnieje  
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