Re: [Hamlib-developer] Rig control error from WSJT-X with new IC-7300MK2

[George B. <geo...@gm...>]

Use the 4.7 version; it has a IC-7300MK2 specific rig type.  You could 
probably get the MK2 to work(mostly) by changing the default CI-V 
address with the -C option on older versions of Hamlib, but there are 
other differences in the commands between the two rigs.

73 n3gb

On 3/8/26 4:41 PM, Steve Ruedinger wrote:
>
> Greetings,
>
> I just received my new IC-7300MK2 and I’m trying to set it up for FT8 
> with WSJT-X version 2.7.
>
> I’m getting a persistent Rig Control Error, the details of the error 
> are below. I have tried libhamlib-4.dll version 4.6.1 and 4.7.0 with 
> the same results.
>
> Hamlib error: read_string_generic(): Timed out 2.040 seconds after 0 
> chars, direct=1
>
> ****4:frame.c(329):icom_one_transaction returning(-5) Communication 
> timed out
>
> Communication timed out
>
> Communication timed out
>
> ***3:frame.c(555):icom_transaction returning(-5) Communication timed out
>
> **2:icom.c(833):icom_get_usb_echo_off returning(-5) Communication 
> timed out
>
> icom_rig_open: echo status result=-5
>
> icom_rig_open: Unable to determine Icom echo status -- is rig on and 
> connected?
>
> *1:icom.c(1193):icom_rig_open returning(-5) Communication timed out
>
> ser_close: restoring options
>
> rig.c(1559):rig_open returning2(-5) Communication timed out
>
> Communication timed out
>
> Communication timed out
>
> while opening connection to rig
>
> Timestamp: 2026-03-08T20:20:05.834Z
>
> The radio is running firmware version 1.02 which seems to be the 
> latest version for the IC-7300MK2. I have installed the latest USB 
> drivers from the ICOM website which is version 1.70.
>
> I have selected IC-7300 in the radio settings tab in WSJT-X as there 
> is no listing for the IC-7300MK2.
>
> Radio configuration in WSJT-X is:
>
> RIG: Icom IC-7300
>
> Serial port: Com3
>
> Baud rate: 19200, I have also tried 9600
>
> Data Bits: 8
>
> Stop Bits: 1
>
> Handshake: None
>
> PTT Method: CAT
>
> Mode: Data/pkt
>
> Split Operation: Rig
>
> WSJT-X will receive and decode messages if I manually select a band. 
> It will continue to decode messages even after I get the rig control 
> error.
>
> Please let me know what I should do next.
>
> Thank you,
>
> Steve Ruedinger KG8OM
>
> 73
>
>
>
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