uSDX tips
Power usage
Around ~500mA in TX. Works with 3S 18650, power output dependent of battery voltage, makes around 4 to 5W in WSPR with 11.8V.
With 3S 18650, unknown capacity, WSPR 40% TX ratio runs for around 3h.
CAT mode
Only available with OLED IO Board.
Firmware needs the following:
#define CAT 1 // CAT-interface
NOT TESTED yet:
//#define CAT_EXT 1 // Extended CAT support: remote button and screen control commands over CAT
//#define CAT_STREAMING 1 // Extended CAT support: audio streaming over CAT, once enabled and triggered with CAT cmd, samplerate 7812Hz, 8-bit unsigned audio is sent over UART. The ";" is omited in the data-stream, and only sent to indicate the beginning and end of a CAT cmd.
Connection
- GND/RX/TX to an USB FTDI
- Audio OUT (mono) to USB sound card
- Mic/Key to USB sound card: T(ip)=Key, R(ing)=Mic, S(leeve)=GND, so connect Ring and Sleeve to the soundcard
- PTT is handled by CAT, nothing specific here
Generic settings
- TS-480
- 38400 bps
- 8n1
- NO Handshake, so NO RTS and DTR (force them low if possible)
- Polling 200ms
- Timeout 4000ms
FLRIG
- TS-480HX
- same generic settings
- Uncheck
RTS/CTS
- In
PTT-Generic
checkPTT via CAT
JS8
- Not using flrig, directly controlling the CAT interface
- RIG: Kenwood TS-480
- Same generic settings
- PTT Method: CAT
- Mode: Data/Pkt
- Split operation: none
WSJT-X
- Rig: FLRig FLRig
- Network server: 127.0.0.1:12345
- PTT Method: CAT
- Mode: None (any other mode will let the PTT stuck in transmit)
- Split operation: None