                 n = 20;
         }
         if (config.hex_output)
-            showString(PSTR("X"));
+            Serial.print('X');
         if (config.group == 0) {
             showString(PSTR(" G"));
             showByte(rf12_grp);

            Serial.println();
            break;

#if !TINY
        case 'l': // turn activity LED on or off
            activityLed(value);
            break;

        showString(PSTR(") "));
#endif
        Serial.println();
        
        if (config.hex_output > 1) { // also print a line as ascii
            showString(PSTR("ASC "));
            if (config.group == 0) {
