IC-756PRO2 VFO A/B CAT frequency

@irad d Hi Irad, just tested the posted VarAC.exe, it solves both bugs! About my previuos post, I see the direct cat set the frequency only but I was not addressing that but I was trying to describe that Direct CAT is correctly setting only the active VFO in ic-756p2 as it should, while using omnirig both vfo are changed. I've did some sniffing again to verify what is the difference between VarAC direct CAT and VarAC+Omnirig commands on the bus and thanks to the nice DF4OR website (and k9jm CIVsniffing sw) I was able to understood that Omnirig select sub vfo before changing frequency, modify that VFO freq and then select main Vfo and change again the freq. the CIV command for VFO selection is $07, you can see in the attached file. I think that probably there is something to modify in the VarAC interface with omnirig telling it to change freq in both vfo, I don't know how omnirig is called by external sw so can't say anything more. thank you vy much and 73.

thanks Irad, I'll try next version to see what will happen both with omnirig and direct command way and I'll report you. If you have a beta version to share I could try it even before next release. 73 de Phil, iz1fks

@iz1fks Hi Phil. did you check the latest version 3.4 and see if it solves your issues with CAT commands ?

Hi Irad, I've just installed the new version, from first tests this is the situation:

Frequency control -> OmniRig : no changes from previous version behaviour

Frequency control -> CAT: it looks working fine !! only the active VFO is updated as it should.

there is a small bug about "CAT Configuration" settings (at least with Win7); the settings remain not active (in grey) until selection of CAT option in PTT Configuration, only after this selection CAT Configuration can be modified, but changing to CAT only in Frequency Control is not enabling "CAT Configuration".

I have tested also COM RTS PTT, it seems it's working fine but the PTT ON button test does set the rtx in ptt on just for few milliseconds and then switching off without can use ptt off button. this not happen using cat or omnirig for ptt where the two test pushbutton are working well. thank you and 73

Hi Irad, I'm using OmniRig with other software (i.e. JS8CALL and Log4OM) but this issue doesn't appear there, only the active VFO is set to the required frequency. I checked about it in the CI-V command manual but there is no a specific command for setting VFO A or B in these rigs, just the single command you have posted, but it should set only the active VFO, I have not understood why these issue happen only with VarAC. I had perfomred some sniffing with both js8call and VarAC changing frequency once after opening sniffing sw, and detected that the set frequency command is invoked twice using VaraAC while just one using Js8call. I attached both sniffing files, hope this can help. 73 de Phil

Thanks for the info about pro III; it's really strange because there is not a CAT CI-V command for vfo A or B for these TRX, but just one command and the frequency of the selected VFO only should be changed