(tr)uSDX supported CAT commands
The (tr)uSDX supports a subset of the Kenwood TS-480 CAT interface.
The (tr)uSDX CAT interface offers a USB Serial COM port on the host with speed 38400 / 115200 (2.00t and upwards), 8N1, No Flow control, DTR should be HIGH, RTS should be LOW on RX, may be HIGH to key CW/PTT.
Supported TS-480 CAT Commands
The (tr)uSDX responds on the following TS-480 CAT commands: FA; FAnnnnnn; IF; ID; PS; PS1; AI; AI0; MD; MD0; MD1; MD2; MD3; MD4; MD5; RX; TX; TX0; TX1; TX2; AG0; XT1; RT1; RC; FL0; RS; VX;
The most important ones are:
FA; FA00014195000; Get / Set Frequency in Hz
MD; MDn; Get / Set Mode (1..5 = LSB, USB, CW, FM, AM)
IF; Get transceiver status, returning Frequency, Mode only
TX0; Set transceiver in TX (transmit) state
TX2; Set transceiver in Tune (transmit) state (mode must set to CW)
RX; Set transceiver in RX (receive) state
ID; Get transceiver ID: 020 = TS-480 which is emulated by (tr)uSDX
Supported CAT Extensions
The following (non TS-480) CAT extensions are supported by the (tr0uSDX:
UA0; UA1; UA2; US;
The usage is:
UA0; Set CAT streaming OFF: CAT control ONLY is possible
UA1; Set CAT streaming ON with speaker ON : CAT control and RX+TX Audio Stream over same Serial interface
UA2; Set CAT streaming ON with speaker OFF: CAT control and RX+TX Audio Stream over same Serial interface
USnnnnn…; Indication that CAT audio stream is following with U8 (unsigned bytes), until the point of a ‘;’ character.
When CAT streaming is enabled, consider the following:
- In RX the transceiver is sending an audio stream to the host until a TX0; CAT command is issued by the host.
- In TX the host may send an audio stream to the transceiver until a RX; CAT command is issued by the host.
- The audio stream that is sent over the CAT interface has a certain sample-rate: for RX: 7825 Hz, for TX: 11520 Hz (or lower when samples are sent on a equidistant continuous timely basis, i.e. not sent per block)
- The audio stream data may be interrupted with CAT information starting at the point of a ‘;‘ character.
- The audio stream data may be resumed after CAT information starting with a ;US command.
- The dynamic range of audio stream is limited by 46 dB (8-bits).