Undocumented features of the DJ580T
                      -----------------------------------

    After  noting  that  there were features on the DJ-580T  that  could  be
    accessed  by typing keypad numbers with the pad locked (FL symbol on), I
    went through and tried all 1000 #nnn combinations. I found the following
    things:

    #120: Prints open/closed on the main band
    #127: Same thing as above (or is it #128?)
    #355: Just beeps
    #123

    This  last  one  lets  you  set the touch tone  send  rate  1=very  fast
    ...9=very  slow  and 0=even slower (like you'd expect 10 to  be).  Every
    time you access this code, it adds one to the current value and displays
    it.  So if all you want to do is read the value without changing it, you
    have  to  enter  #123  10 times to get it to count all  the  way  around
    (pain).  It  keeps separate values for VHF and UHF. The RESET  procedure
    will put it back to factory values.

    I  also  assume you intentionally left out #508 which is in  the  manual
    (cross band duplex).

    73's Bill N6IGF

    Note: I haven't tried or verified this, proceed at your own risk. WA2ISE

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    (Downloaded from GB7SYP)