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Omnirig Value cannot be null. Parameter name: type

I have this issue with omnirig (v1.2), value cannot be null etc. Using IC-7610 and CAT control works fine, switch to omnirig error message pops up. No other programs running and omnirig works fine for wsjt and Log4om2. Ideas why this happens please? I want to use omnirig so I can use Log40m.

73 Geoff.

3 comments

Comments (3)

G4AON Dave

May 03, 2023

I have just given up trying to get VarAC and Log4OM to co-exist via Omnirig. My Elecraft K4D has USB and RS232, the USB port presents 2 x virtual serial ports, one is now connected via Omnirig to Log4OM and the other directly to my K4D.

The problem that I began to experience was that Log4OM would cease to display the frequency a few seconds after starting VarAC. I also had a QSY request issue that may have been Omnirig related.

Can you see 2 x RS232 via USB with your 7610? If so, you might try the split port solution.

73 Dave

g4xmj

May 03, 2023

Replying to

Hi Dave.

Thanks for replying.

The IC-7610 does have 2 com ports but only one can be used for cat, the other one is for usb keying and is used for rtty or cw so that's no good sadly. What I may try is to split the com port using vspe and point the rig and vara to that and see what happens, but it would be better if the omnirig option worked.

73 Geoff.

g4xmj

May 03, 2023

Replying to

Hi again.

I have it working Dave. I created a com port splitter, in my case com 19 (the rig port) to com 3 (virtual port). Pointed Varac and Omnirig to com 3 and all works. Log4OM 2 works too. Make sure you set the baud rate to match what you have in Omnirig and Varac. I use 115200.

I used VSPE because I had it anyway for my Flex 5000A so just created a new device. I expect you could use any com port prog. Give it a go and I should be pleased to know how you get on.

73 Geoff.

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