diff --git a/Readme.md b/Readme.md
index 4c7fcd4..9c39801 100644
--- a/Readme.md
+++ b/Readme.md
@@ -1,9 +1,8 @@
-ENGLISH:
+### ENGLISH: ###
+### Using method ###
 
 Click to open KNZ_Convert_en_us_ver_1.0.6.exe of english version.
 
-Using method
-
 Click "Single file convert" or "Batch files convert", input the RINEX file of version of 2.10 or 2.11.
 
 If not click the output diectory, the converted file will generate at the same directory of original file, 
@@ -19,22 +18,4 @@ The converted file own some traits as below:
 2. For the obsrved value types ofdifferent frequency hands in the original file,
 	the software will automatically match and general default is the conversion table at the end of the readme
 
-
-SYSTEM	  |	FREQ.BAND	FREQUENCY   | 2.11 || 2.10 CODE   ->	  3.04 CODE             |
-
-GPS		  | L1          1575.42 	| [C, L, D, S] 1,P1   -> 	  [C, L, D, S]1C, C1P   |
-		  | L2		    1227.60	    | [C, L, D, S] 2,P2   ->      [C, L, D, S]2C, C2P   |
-		  | L5          1176.45	    | [C, L, D, S] 5      -> 	  [C, L, D, S]5I        |
-
-GLONASS	  | G1		    1602+K*9/16 | [C, L, D, S] 1,P1   ->      [C, L, D, S]1C, C1P   |
-		  | G2		    1246+K*7/16 | [C, L, D, S] 2,P2   -> 	  [C, L, D, S]2C, C2P   |
-
-Galileo	  | E2-L1-E1    1575.42	    | [C, L, D, S] 1      ->      [C, L, D, S]1C        |
-		  | E5a		    1176.45	    | [C, L, D, S] 5      ->      [C, L, D, S]5I        |
-		  | E5b	        1207.140    | [C, L, D, S] 7      ->      [C, L, D, S]7I        |
-		  | E5a+b	    1191.795    | [C, L, D, S] 8      ->      [C, L, D, S]8I        |
-		  | E6		    1278.75	    | [C, L, D, S] 6      ->      [C, L, D, S]6C        |
-
-SBAS	  | L1		    1575.42	    | [C, L, D, S] 1      ->      [C, L, D, S]1C        |
-		  | L5		    1176.45	    | [C, L, D, S] 5      ->      [C, L, D, S]5I        |
-
+![image](Convert_chart.png)