VE7ED.COM
Also check out the KSE4PCC1 free Yaesu software.
It will make it easier to test out your CAT commands on your radio
Set the port and speed to match your radio.

In CommCat Mobile the commands need a * added to the front of the commands

These are the common one's

Macro #
Macro Name 
CAT code
Description
1
ATUNE ON
*ACP31;
Auto Tuner - On
2
ATUNE OFF
*ACP30;
Auto Tuner - Off
3
TUNE
*ACP32;
Tune
4
ANT #3
*ANP23;
Antenna Port #
5
AUDIO
!SKYPE:
Audio - Turn On (voip)
6
USB AUDIO
*EX1032;
Set Audio - Rear USB port
7
MIC AUDIO
*EX1030;
Set Audio - Front Mic Jack
8
DATA AUDIO
*EX1031;
Set Audio - Data port
9
1.905 MHz
*FA01905000;
Preset frequency - 1
10
3.710 MHZ
*FA03710000;
Preset frequency - 2
11
7.063 MHz
*FA07063000;
Preset frequency - 3
12
14.175 MHZ
*FA14175000;
Preset frequency - 4
13
ATTN OFF
*RA00;
Attenuation - Off
14
ATTN 12db
*RA02;
Attenuation - 12db
15
ATTN 18db
*RA03;
Attenuation - 18db
16
BAND UP
*BU0;
Change band - UP
17
PREAMP O
*PA00;
Preamplifier - Off
18
PREAMP 1
*PA01;
Preamplifier - 1
19
PREAMP 2
*PA02;
Preamplifier - 2
20
PROC ON
*PRO1;
Processor - On
21
PROC OFF
*PROO;
Processor - Off
22
EQ ON
*PR11;
Equalizer - On
23
EQ OFF
*PR10;
Equalizer - Off
24
ANOT ON
*BC01;
Auto Notch - On
25
ANOT OFF
*BC00;
Auto Notch - Off
26
DNR ON
*NR01;
DSP Noise Reduction - On
27
DNR OFF
*NR00;
DSP Noise Reduction - Off
28
POWER ON
*PS0;
Turns the radio Off
29
POWER OFF
*PS1;
Turns the radio On
30

*
Blank
31

*
Blank
32

*
Blank


Mine is setup like this....

Macro #
Macro Name 
CAT code
Description
1
POWER ON
*PS1;
Turns the radio ON
2
POWER OFF
*PS0;
Turns the radio OFF
3
TUNE
*ACP32;
Tune
4
AUDIO
!SKYPE;
Audio - Turn On (voip)
5
REAR AUDIO
*EX1032;
Set Audio - Rear USB port
6
FRNT AUDIO
*EX1030;
Set Audio - Front Mic Jack
7
ATTN OFF
*RA00;
Attenuation - Off
8
ATTN 18db
*RA03;
Attenuation - 18db
9
NOTCH ON
*BCO1;
Auto Notch ON
10
NOTCH OFF
*BC00;
Auto Notch OFF
11
DNR ON
*NR01;
DSP Noise Reduction - ON
12
DNR OFF
*NR00;
DSP Noise Reduction - OFF
13
MON ON
*EX1035037;
Monitor ON (sets level 37)
14
MON OFF
*EX1035000;
Monitor OFF (sets level 00)
15
C4FM MODE
*MD0E;
C4FM Mode (firmware update)
16
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Blank
17
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18
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19
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20
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21
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22
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23
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24
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25
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26
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27
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28
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29
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30
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31
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32
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Blank

Since I have a FTdx-3000 and a FT991 (that is why the C4FM macro)