TS440 RS232 COMMAND SET
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Part 1 of 2

The following is a summary of the TS440 command set. I don't have the RS232
specs handy, but I believe the interface on the radio is locked at
4800 baud 2 stop bits 8 data bits.  Note that commands end with a ';'
and not a carriage return.  If you type a carriage return,  it is taken
as a bad character.  I am in the process of writing a program to control
the TS440 with a PC.  So far it runs quite well.  To test the connection,
type  AI1;  and then start playing with the controls. It should return
a string that contains all info about the radio.

Command Descriptions for Kenwood TS-440

                    Auto Information
AIn;                The radio will send the status info automatically when
                    the operator changes any control covered in the IF;
                    command.
                    n = 0 for Auto Info OFF
                    n = 1 for Auto Info ON
                    See IF; for response

                    Display Memory
DMnnnn;             This is a factory diagnostic and is of no practical
                    use.
                    nnnn = MPU address in hex
                    Response is:
                    DMnnnn-aabbccddeeffgghhiijjkk;
                    nnnn = MPU address in hex
                    aa~kk = 16 bytes of data in hex

                    Down
DN;                 The frequency or memory channel will go down by one
                    step.

                    Read Frequency
FA;                 Read VFO A.
FB;                 Read VFO B.
                    Response is:
                    Fxggmmmkkkhhh;
                    x = A or B
                    gg  = GHz.
                    mmm = MHz.
                    kkk = KHz.
                    hhh =  Hz.

                    Load VFO register
Fxggmmmkkkhhh;      Loads a frequency into a VFO:
                    x = A or B (selects VFO)
                    gg  = GHz. (May be 00 or spaces)
                    mmm = Mhz.
                    kkk = KHz.
                    hhh =  Hz.

                    Function Select
FNn;                Select VFO or memory
                    n = 0 for VFO A
                    n = 1 for VFO B
                    n = 2 for memory

                    Identify Model Request
ID;                 The radio will respond with:
                    ID001; for a TS-940
                    ID004; for a TS-440
                    The radio may respond with:
                    ID002; for a TS-811
                    ID003; for a TS-711

                    Read Information Request
IF;                 The radio will respond with:
                    IFggmmmkkkhhhsnnnzrxyytdfcp;
                    ggmmmkkkhhh is the frequency (See Fx;)
                    s   = "+" or "-" value of RIT/XIT
                    nnn = value of RIT/XIT
                    z   = "0" (I am not sure what this is)
                    r (see RT;)
                    x (see XT;)
                    yy  = memory channel number
                    t   = 0 for Receive
                        = 1 for Transmit
                    d (see MD;)
                    f (see FN;)
                    c (see SC;)
                    p (see SP;)

                    Enable or disable manual frequency control:
LKn;                n = 0 for LOCK OFF (manual control enabled)
                    n = 1 for LOCK ON (manual control disabled)

                    Memory Channel Select
MCmmm;              Select a memory channel:
                    mmm = channel number (000 to max for radio)

Cont'd in part 2 of 2