//
  // Skanti command values
  //
  RemoteEnable:   String = #1#2;    // SOH STX
  RemoteDisable:  String = #16;     // DLE
  RTX_Reset:      String = '!';     // Reset
  TX_Cmd:         String = '"';     // " Double quote mark (has 3 sec timeout)
  RX_Cmd:         String = '#';     // #

  TX_Prefix:      String = ';';     // ; + ASCII value + cr
  RX_Prefix:      String = ':';     // : + ASCII value + cr
  //NOTE!  The value represents the frequency in multiples of 100Hz

  Recall:         String = '<';     // + ASCII value + cr
  Tune_Dn:        String = '=';     // Fine tune down. See 'w'
  Tune_Up:        String = '>';     // Fine tune up. See 'w'
  BFO_Tune_Dn:    String = '@';     // BCW Beat tone Down 100Hz
  BFO_Tune_Up:    String = 'A';     // BCW Beat tone Up 100Hz
  Filt_Wide:      String = 'B';     // Where enabled
  Filt_Inter:     String = 'C';     // Where enabled
  Filt_Narrow:    String = 'D';     // Where enabled
  Filt_VNarrow:   String = 'E';     // Where enabled
  Speaker_Toggle: String = 'F';     // Toggle On/Off
  PreAmp_Toggle:  String = 'G';     // Toggle On/Off
  Atten_Toggle:   String = 'H';     // Toggle On/Off
  Squelch_Toggle: String = 'I';     // Toggle On/Off
  Agc_On:         String = 'J';
  Agc_Fast:       String = 'K';
  Agc_Slow:       String = 'L';
  Agc_Off:        String = 'M';
  Sensitivity_Dn: String = 'N';     // Increment RF Gain Down (AGC must be OFF)
  Sensitivity_Up: String = 'O';     // Increment RF Gain Up (AGC must be OFF)
  AF_GainDec:     String = 'P';     // 'P';     // Increment Volume DAC Down.
  AF_GainInc:     String = 'Q';     // 'Q';     // Increment Volume DAC Up.
  TX_Tune:        String = 'R';     // Invoke TX tuning.
  TX_LowPwr:      String = 'S';
  TX_MediumPwr:   String = 'U';
  TX_HighPwr:     String = 'W';
  Mode_USB:       String = 'X';
  Mode_LSB:       String = 'Y';
  Mode_AM:        String = 'Z';
  Mode_Telex:     String = '[';
  Mode_R3E:       String = '\';
  Mode_CW:        String = ']';
  Mode_MCW:       String = '^';

  Test_Alarm:     String = 'a';
  Stop_Alarm:     String = 'b';
  Send_Alarm:     String = 'c';

  Store:          String = 'd';     // d + ASCII value + cr
  Scan:           String = 'e';
  Set_Time:       String = 'f';     // 'f1234'#13 will set the time to 12:34
  Duplex:         String = 'g';

  Dimmer_Dn:      String = 'h';     // Display intensity down
  Dimmer_Up:      String = 'i';     // Display intensity up.
  TX_OnOff:       String = 'j';     // Toggle TX Enable (On/Off)
  Speaker_On:     String = 'k';     // Speaker enable
  Speaker_Off:    String = 'l';     // lower case L
  PreAmp_On:      String = 'm';     // RF Pre-Amp Enable
  PreAmp_Off:     String = 'n';     // RF Pre-Amp Disable
  Attenuator_On:  String = 'o';     // Antenna Attenuator Enable
  Attenuator_Off: String = 'p';     // Antenna Attenuator Disable
  Squelch_On:     String = 'q';     // Squelch enable
  Squelch_Off:    String = 'r';     // Squelch disable
  Duplex_On:      String = 's';     // Duplex enable
  Duplex_Off:     String = 't';     // Duplex disable
  TX_On:          String = 'u';     // Enable (turn on) Transmitter.
  TX_Off:         String = 'v';     // Disable (turn off) Transmitter.

  TuneStepProg:   string = 'w3'#13; // Programmable rate (how?)
  TuneStep1k:     String = 'w2'#13; // RX Fine Tune Step 1kHz
  TuneStep100:    String = 'w1'#13; // RX Fine Tune Step 100Hz
  TuneStep10:     String = 'w0'#13; // RX Fine Tune Step 10Hz

  Set_BFO:        string = 'x';     // Set BFO frequency (-30 ... +30, 100 Hz units)
  AF_GainSet:     String = 'y';     // 'y..'#13
                                    //   .. = 00 = maximum (!! LOUD !!)
                                    //   .. = 99 = minimum

  Dimmer_Set:     string = 'z';     // 'z.'#13
                                    //   . = 0 = display off
                                    //   . = 5 = display maximum

  EQTXRX:         string = ':;'#13; // Copy RX frequency to TX

  F500k:          string = '`';     // Go to 500 kHz
  F2182k:         string = '_';     // Go to 2182 kHz
  Get_Status:     string = '*';     // Read status (S-meter, etc.)
  Read_Config:    string = '(';     // Read configuration string

  Fill_Scan_Buf:  string = '$';     // + {<freq.rx><freq tx>}<CR>
  Adv_ScnBuf_Ptr: string = '%';     // + [RX display frequency]
  RST_ScnBuf_Ptr: string = '%'#13;  // Reset scan buffer pointer

  Set_Option_Reg: string = '{';     // + <value 0..255><ENTER>
  Set_Preset_Reg: string = '|';     // + <value 0..255><ENTER>
  Set_Guard_Reg:  string = '}';     // + <value 0..255><ENTER>

  Exec_AST:       string = '200'#13;  // Automatically stepped self test
  Exec_MST:       string = '201'#13;  // Manually stepped self test
  Exec_AST_Num:   string = '202'#13;  // + <test#><CR> Auto starting at test#
  Exec_MST_Num:   string = '203'#13;  // + <test#><CR> Manual starting at test#

  Read_BFO_Freq:  string = '244'#13;  // Read BFO frequency
                                      // <+-><frequency in 100Hz units>
  Store_BFO_Freq: string = '244'#13'd'#13; // Store default BFO frequency

  Read_CU_Vers:   string = '246'#13;  // + <CR>
  Read_TU_Vers:   string = '247'#13;  // + <CR>

  SOH:            string = #$01;
  STX:            string = #$02;
  ETX:            string = #$03;
  EOT:            string = #$04;
  ACK:            string = #$06;
  BEL:            string = #$07;
  CR:             string = #$0D;
  DLE:            string = #$10;
  NAK:            string = #$15;
  CAN:            string = #$18;

  // Valid range of meter reading
  MetersRange = ['`'..'t'];

  // Valid range of status messages
  StatusRange = ['u'..'z'];