         if (value) {
          config.nodeId = (value << 6) + (config.nodeId & 0x3F);
          frequency = 1600;
-         high = 0;  // Reset DRSSI max/min
-         low  = 255;
          saveConfig();
         } else {
             showHelp();
         }
         break;
       case 'o': // Increment frequency within band
-          high = 0;  // Reset DRSSI max/min
-          low = 255;
           if (value == 255) { 
             revF = !revF;
             revP = revP ^ 40;   // Flip the indicator

      if (!useHex)
        Serial.print(' ');
      showByte(rf12_data[i]);
/// Build a string showing ascii interpretation of rf12_data, if not ascii print a "." just like an IBM core dump JOH
    }
/// Print string built above
 //  Code from Thomas Lohmueller known on forum as @tht    //   
        byte drssi = rf12_getRSSI();
 /////////////////////////////////////////////////////////   
    Serial.print(" (");
    if (drssi > high) high = drssi;
    if (drssi < low) low = drssi; 
    Serial.print(low, DEC);
    Serial.print("-");
    Serial.print(drssi, DEC);
    Serial.print("-");
    Serial.print(high, DEC);  
    Serial.println(")");
    
    if (rf12_crc == 0) {
      activityLed(1);

/// Useful url: http://blog.strobotics.com.au/2009/07/27/rfm12-tutorial-part-3a/
// 4 bit
#define QUIET   0x1      // quiet mode
#define V10     0x2      // Indicates a version of RF12Demo after version 10.
// ----------------
// 8 bit
#define COLLECT 0x20     // collect mode, i.e. pass incoming without sending acks
