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With my ICom 9700 the CI-V reference manual says that I should be able to send the command 0x07, subcommand 0xD0, to select the Main band, and 0xD1 to select the Sub band. subcommend 0xB0 to exchange Main and Sub bands.

From the rigctl manpage I expect the send_cmd (w) command to let me send w \0x07\0xB0 to exchange the Main and Sub bands.

When I send this, rigctl doesn't give an error. But it also does nothing.

I also tried sending the full CI-V packet, w \0xFE\0xEF\0xA2\0xE0\0x07\0xB0\0xFD, but also that is silently accepted with no action taken.

I look at the radio, and nothing changes, and I also use the f command, and see that still the same band is active. (same frequency is returned)

So: how do I send this raw command to exchange Sub and Main band.

Alternatively: Is there a way to use existing rigctl commands to do this? I couldn't find one.

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I also tried sending the full CI-V packet, w \0xFE\0xEF\0xA2\0xE0\0x07\0xB0\0xFD

The sync word is FE FE, not FE EF; that might be your whole problem. Otherwise it looks like this one is right.

Alternatively: Is there a way to use existing rigctl commands to do this? I couldn't find one.

v MAIN, v SUB, and G XCHG should work (I don't have a 9700 here to test).

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  • $\begingroup$ The v / V command doesn't seem to work on the 9700, but other than that you were spot on. Thank you! $\endgroup$
    – Thomas
    Jul 4, 2021 at 17:35
  • $\begingroup$ @thomas you might want to make sure that your version of hamlib is new enough :) $\endgroup$
    – hobbs - KC2G
    Jul 4, 2021 at 20:48

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