[Hamlib-developer] Error communicating with Icom 706

[Co Co <slo...@gm...>]

Hi,
when connecting wsjtx254 on Raspberry Pi4 to my rig Icom IC-706 MK II an
error occur sometimes(!).

Frequency on the rig is 28.074 and it's also adjusted in wsjtx,
communication works properly, so changing band or QRG in WSJTX also changes
on my rig.

But.. When sending, the trx-bar counts up from 1 to 15 and when reaching
the 6 transmit stops and error will be displayed with these details:

Hamlib error: Communication bus error
rig_get_freq(1914): freqMainB=21088000,modemainB=AM,widthmainB=2400
rig_get_freq: elapsed=5427ms
rig.c(1917): rig_get_freq return(-13) Communication bus error
rig_get_freq(1914): freqMainB=21088000,modemainB=AM,widthmainB=2400
rig_get_freq: elapsed=5427ms
rig_get_freq: elapsed=5427ms while getting current VFO frequency

Timestamp...

On 10m this error occurs nearly in each trx-cycle, on 15m nearly never.

I don't use splitmode on VFOA and VFOB, but VFOB is currently adjusted to
the mentioned QRG 21088...

Error also occurs, when VCOB is on same values as VCOA in splitmode.

Enable Tx button is deactivated after this error.

CAT parameters like Baudrate don't have any effect on this error.

Any ideas for this weired behavior?

Rigctl Hamlib 4.5 is on the raspberry

Cheers and thx
Vy73 de Cornel, DO5CR