diff --git a/README.md b/README.md
index 55b0f66..32a7e9f 100644
--- a/README.md
+++ b/README.md
@@ -41,7 +41,7 @@ diff -s uncoded.dat decoded.dat
 
 ### Supported Modes
 
-All modes need a bandwidth of 2400 Hz.
+All modes need a bandwidth of 2400 Hz and there are two frame sizes.
 
 These are the durations for each differential modulation scheme:
 
@@ -61,33 +61,109 @@ And these are the durations for each coherent modulation scheme:
 | QAM1024    |  2.2s |   4.0s |
 | QAM4096    |  1.9s |   3.4s |
 
-Currently all digital modes use a 1/2-rate forward error correction code.
+These are the numbers for the short modes with a 1/2 code rate:
 
-Therefore we have the following byte payloads for each modulation:
-
-| Modulation | Short | Normal |
-| ---------- | ----- | ------ |
-| DBPSK      |  128B |   256B |
-| DQPSK      |  128B |   512B |
-| D8PSK      |  512B |  1024B |
-| QAM16      |  256B |  1024B |
-| QAM64      | 1024B |  2048B |
-| QAM256     | 1024B |  2048B |
-| QAM1024    | 2048B |  4096B |
-| QAM4096    | 2048B |  4096B |
-
-Which give us the following bitrates for each modulation:
-
-| Modulation |   Short |  Normal |
+| Modulation | Payload | Bitrate |
 | ---------- | ------- | ------- |
-| DBPSK      |  681b/s |  789b/s |
-| DQPSK      | 1070b/s | 1577b/s |
-| D8PSK      | 2141b/s | 2398b/s |
-| QAM16      | 2141b/s | 3155b/s |
-| QAM64      | 4282b/s | 4795b/s |
-| QAM256     | 5449b/s | 6310b/s |
-| QAM1024    | 7493b/s | 8268b/s |
-| QAM4096    | 8563b/s | 9591b/s |
+| DBPSK      |    128B | 0.7kb/s |
+| DQPSK      |    128B | 1.1kb/s |
+| D8PSK      |    512B | 2.1kb/s |
+| QAM16      |    256B | 2.1kb/s |
+| QAM64      |   1024B | 4.3kb/s |
+| QAM256     |   1024B | 5.4kb/s |
+| QAM1024    |   2048B | 7.5kb/s |
+| QAM4096    |   2048B | 8.6kb/s |
+
+These are the numbers for the normal modes with a 1/2 code rate:
+
+| Modulation | Payload | Bitrate |
+| ---------- | ------- | ------- |
+| DBPSK      |    256B | 0.8kb/s |
+| DQPSK      |    512B | 1.6kb/s |
+| D8PSK      |   1024B | 2.4kb/s |
+| QAM16      |   1024B | 3.2kb/s |
+| QAM64      |   2048B | 4.8kb/s |
+| QAM256     |   2048B | 6.3kb/s |
+| QAM1024    |   4096B | 8.3kb/s |
+| QAM4096    |   4096B | 9.6kb/s |
+
+These are the numbers for the short modes with a 2/3 code rate:
+
+| Modulation | Payload | Bitrate |
+| ---------- | ------- | ------- |
+| DBPSK      |    171B | 0.9kb/s |
+| DQPSK      |    171B | 1.4kb/s |
+| D8PSK      |    684B | 2.9kb/s |
+| QAM16      |    342B | 2.9kb/s |
+| QAM64      |   1368B | 5.7kb/s |
+| QAM256     |   1368B | 7.3kb/s |
+| QAM1024    |   2736B |10.0kb/s |
+| QAM4096    |   2736B |11.4kb/s |
+
+These are the numbers for the normal modes with a 2/3 code rate:
+
+| Modulation | Payload | Bitrate |
+| ---------- | ------- | ------- |
+| DBPSK      |    342B | 1.1kb/s |
+| DQPSK      |    684B | 2.1kb/s |
+| D8PSK      |   1368B | 3.2kb/s |
+| QAM16      |   1368B | 4.2kb/s |
+| QAM64      |   2736B | 6.4kb/s |
+| QAM256     |   2736B | 8.4kb/s |
+| QAM1024    |   5472B |11.0kb/s |
+| QAM4096    |   5472B |12.8kb/s |
+
+These are the numbers for the short modes with a 3/4 code rate:
+
+| Modulation | Payload | Bitrate |
+| ---------- | ------- | ------- |
+| DBPSK      |    192B | 1.0kb/s |
+| DQPSK      |    192B | 1.6kb/s |
+| D8PSK      |    768B | 3.2kb/s |
+| QAM16      |    384B | 3.2kb/s |
+| QAM64      |   1536B | 6.4kb/s |
+| QAM256     |   1536B | 8.2kb/s |
+| QAM1024    |   3072B |11.2kb/s |
+| QAM4096    |   3072B |12.8kb/s |
+
+These are the numbers for the normal modes with a 3/4 code rate:
+
+| Modulation | Payload | Bitrate |
+| ---------- | ------- | ------- |
+| DBPSK      |    384B | 1.2kb/s |
+| DQPSK      |    768B | 2.4kb/s |
+| D8PSK      |   1536B | 3.6kb/s |
+| QAM16      |   1536B | 4.7kb/s |
+| QAM64      |   3072B | 7.2kb/s |
+| QAM256     |   3072B | 9.5kb/s |
+| QAM1024    |   6144B |12.4kb/s |
+| QAM4096    |   6144B |14.4kb/s |
+
+These are the numbers for the short modes with a 5/6 code rate:
+
+| Modulation | Payload | Bitrate |
+| ---------- | ------- | ------- |
+| DBPSK      |    213B | 1.1kb/s |
+| DQPSK      |    213B | 1.8kb/s |
+| D8PSK      |    852B | 3.6kb/s |
+| QAM16      |    426B | 3.6kb/s |
+| QAM64      |   1704B | 7.1kb/s |
+| QAM256     |   1704B | 9.1kb/s |
+| QAM1024    |   3408B |12.5kb/s |
+| QAM4096    |   3408B |14.2kb/s |
+
+These are the numbers for the normal modes with a 5/6 code rate:
+
+| Modulation | Payload | Bitrate |
+| ---------- | ------- | ------- |
+| DBPSK      |    426B | 1.3kb/s |
+| DQPSK      |    852B | 2.6kb/s |
+| D8PSK      |   1704B | 4.0kb/s |
+| QAM16      |   1704B | 5.2kb/s |
+| QAM64      |   3408B | 8.0kb/s |
+| QAM256     |   3408B |10.5kb/s |
+| QAM1024    |   6816B |13.8kb/s |
+| QAM4096    |   6816B |16.0kb/s |
 
 ### Simulating