Radio Setup Guides
Modern HF transceivers with built-in USB audio make digital mode setup easier than ever. Select your radio below for a complete fldigi configuration guide.
Icom
Icom IC-7300
The most popular HF rig for digital modes. Single USB cable for audio and CAT. RigCAT with IC-7300.xml, 19200 baud, CI-V 94h.
Icom IC-7610
Dual-receiver flagship. Use USB 2.0 port (black), not USB 3.0 (blue). Hamlib rig 3078, CI-V address 98h.
Icom IC-705
Portable QRP transceiver with USB-C. Perfect for POTA/SOTA Olivia. Hamlib rig 3085, 19200 baud. flrig recommended for best experience.
Yaesu
Yaesu FT-991A
All-band, all-mode transceiver. Single USB cable. Menu 28, 30, 62-72 for digital setup. 38400 baud.
Yaesu FTDX10
Mid-range performer with dual COM ports. DATA MOD SOURCE = USB. Hamlib rig 1042.
Yaesu FT-710
Compact SDR transceiver. FTDI drivers, 19200 baud, CAT-only PTT. Hamlib rig 1036.
Kenwood
Kenwood TS-890S
Flagship transceiver. 115200 baud (unique!), Hamlib rig 2041. Menu [7-xx] for USB audio levels.
Kenwood TS-590SG
Excellent receiver. Critical: "Reverse Left/Right" audio setting. Menu 68=115200 baud.
Elecraft
Elecraft K4
High-performance SDR. Single USB connection. 38400 baud (mandatory!). RTS for PTT, K4.xml RigCAT.
Elecraft KX3
Portable powerhouse. Requires KXUSB-A cable and external soundcard (no built-in USB audio). Hamlib rig 229.
FlexRadio
FlexRadio (SmartSDR)
FLEX-6400, 6600, 6700 series. Uses DAX audio and SmartCAT virtual COM ports. Per-slice RigCAT XML files available.
Quick Reference
| Radio | Baud Rate | Hamlib Rig # | USB Audio |
|---|---|---|---|
| IC-7300 | 19200 | RigCAT | Built-in |
| IC-7610 | 19200 | 3078 | Built-in |
| IC-705 | 19200 | 3085 | Built-in (USB-C) |
| FT-991A | 38400 | RigCAT | Built-in |
| FTDX10 | 38400 | 1042 | Built-in |
| FT-710 | 19200 | 1036 | Built-in |
| TS-890S | 115200 | 2041 | Built-in |
| TS-590SG | 115200 | RigCAT | Built-in |
| K4 | 38400 | RigCAT | Built-in |
| KX3 | 38400 | 229 | External required |
| FlexRadio | Varies | RigCAT | DAX |
Don't See Your Radio?
Most HF transceivers work with fldigi using similar principles:
- Find your Hamlib rig number: Run
rigctl -l | grep "YourRadio" - Check baud rate: Look in your radio's menu for CAT/serial speed
- Configure audio: Use USB Audio Codec if built-in, or external interface
- Set PTT: CAT command PTT is usually most reliable
Consult your radio's manual for DATA mode and USB audio settings, or check the Linux Ham group for community help.