IC-R8500: Power off, Activating sleep mode When RX is already off, answer is still 'Ok' from rig. When submitted w/o data, many rigs answer with current setting, 1 or 2 bytes BCD. Issued w/o subcommand: reads out the currently selected antenna

IC-7800 requires one additonal byte (1-3) to select the scan select group.ДЄvailable tuning steps vary from radio to radio. So this command is not usable to determine whether a mem channel is in split (duplex) mode or not. This command simply tells the default offset, not the one programemd into a split memory. IC-706xxx has to be in memory mode to clear a mem IC-756 can be in VFO or MEM mode for this command to function other rigs unknown When in memory mode before issuing this command, VFO A and B and Split status are programmed if the selected memory has split data. IC-706xxx When in VFO mode, only the currently selected VFO (A or B) is programmed. Writes displayed data (Freq, mode) to currently selected memory When currently in VFO mode, the mode is not changed (stays in VFO mode), but just selects the memory channel 'mn'

If a blank mem channel is selected, only $FF is sent back except for IC-761 and older CI-IV radios. Replies with lower/upper limit, separated by '-' ($2D) Unfortunately my information at hand is not sufficient to document each case. This does work on many rigs and many commands, but not on all (rigs and commands). With data the command sets the value, without data the value is read. Many commands can be issued with or without data. b: A single 'b' denotes a single byte value with various meaning, see comments.$00 | $01 | $02: A list separated by vertical bars | means that one or another value can be sent.data: Complex data like Memory, differs for various rigs, see details in later sections (and sometimes 'data' simply means that I don't know the exact format).level: a 2-byte BCD coded value between 0 and 255, used for various analog settings (AF gain, RF gain, SQL gain etc.).wn: Window Number, applies to IC-R9000 only.bn, mn: bank number and memory number as shown in section 3.4.md, pd: mode and passband data as shown in section 3.3.fd: frequency data as shown in section 3.2.In column data some abbreviations are used: Also in the following sections are detailed listings for some radios which are too long and complex to include them here. This list of CI-V commands is just an overview, the following sections will explain them in more depth and with examples. A later section tries to give an overview about which rigs understands which command. two rigs may offer the same function but with different commands. Further many commands have different effects on different rigs, i.e. Later commands are sometimes working on one or a few radios only. The basic set of commands ($00 to $10) are nearly identically used on all rigs, with some variation. Meanwhile (2006) there are rigs which support nearly 200 different commands. When the CI-V protocol was first used with the IC-735 it supported only a handful commands.

Icom ic-7800 power