To see this working, head to your live site.

iCom IC-7xx

I was wondering if anyone has gotten an Ic-700 series CAT frequency control to work in the main screen. My rig works with ft8 programs so I know it is not the cable or radio, but looking at the com traffic varac seems to drop a character or 2 every so often from what the radio is sending

If I frequency read (every 2s) what is received is shifted and different lengths

14 comments

Comments (14)

Commenting on this post isn't available anymore. Contact the site owner for more info.

Robert stevenson

Jul 15, 2025

I just checked changing the setting.

YES it worked! thank you for your assistance I had ...Tricked the program into working to change frequencies by sending command for read then wait 200ms then sending the change frequency command.

so here is the Cat Commands and they will need to set PortWaitTimeMs=200

Cat

[Icom IC-726 (KN6QQL.1)]

CmdType=HEX

ModeUSB=FEFE30E0060102FD

ModeUSB_D=FEFE30E00604FD

ModeFM=FEFE30E00605FD

SetFreq_Data_method=BCD

SetFreqVfoA_Cmd=FEFE30E005{}FD

SetFreqVfoA_param_length=10

SetFreqVfoA_hz_res=1

ReadFreqVfoA_Cmd=FEFE30E003FD

ReadFreqVfoA_Result_Data_method=BCD

ReadFreqVfoA_Result_hz_res=1

ReadFreqVfoA_Result_Length=22

ReadFreqVfoA_Result_Freq_Start_Pos=11

ReadFreqVfoA_Result_Freq_Length=10

VarACStartCmd=

VarACExitCmd=

VarAc ini

Robert stevenson

Jul 16, 2025

Replying to

I have a Manuel (PDF) with all the CAT commands and the syntax and addressing and such would you be interested in a copy.

Also if you use command "SetFreqVfoA_Cmd=FEFE00E000{}FD" this will change the frequency of all radios on the same CAT cable. I don't know who all would have more than 1 iCom radio on the same CI-V com system, but it could help to make a 'universal' setting for all iCom radios.