FLDIGI and Icom IC-7100 Config Setup

Here's how I successfully configured the IC-7100 for Fldigi in November 2013.
I'm using Windows 7 64-bit. Also see IC-7100 Info Pages by Jim W4WWJ.

Download USB Drivers

• The latest drivers can always be downloaded from here.
  Look for IC-7100 > USB Driver Utility
• Read the USB Driver Installation Guide
• I really do recommend reading the installation instructions.
• USB Driver Software, v1.20, 2013/08/01
• Run the USB Driver installation package before connecting the USB cable for the first time.
• Unzip USB Driver ZIP first, or the installation will fail.
• Restart the PC.
• Connect the USB cable, then power on the IC-7100.
• Start the Device Manager > Ports (COM & LPT)
• Make note of driver name "Silicon Labs CP210x USB to UART Bridge"
• Make note of your port numbers (COM4 and COM5).

Download Fldigi Software

• Download Fldigi (v3.21.77) and Flrig (v1.3.14) from www.w1hkj.com
• Download the rigCAT xml file for the IC-7100
• Copy "IC-7100.xml" to the Flrig folder (c:\Program Files(x86)\Flrig)
• Join the win-fldigi support group

Configure IC-7100

Hint: Set > Connectors > CI-V

• CI-V Baud Rate = 19200
• CI-V Address = 88h
• CI-V Transceive = Off
• Mode = USB-D
• Data on Mod = USB
• Data Mod = USB
• USB Mod Level = some suitable value, say 30%

Configure Fldigi

• Note that COM ports cannot be shared between programs. Do not try using flrig and rigcat concurrently.
• Run Fldigi
• Configure station info: Configure > Operator
• Configure interface: Configure > Rig Control
  Click Initialize, Save, Close.
• Turn off RigCAT and Hamlib -- instead, RPC will communicate internally to Flrig which provides CAT control.

Configure Flrig

• Hint: Config > Xcvr select
• Rig = IC-7100
• Ser Port = COM4
• Baud = 19200
• Click Init, Close

Run Programs

• Exit both programs
• Start Fldigi
• Start Flrig
• It should connect to both the transceiver and fldigi.
• Fldigi's waterfall should display what is heard.
• Flrig's frequency readout should track changes in the 7100's tuning knob.
• The 7100's frequency display should track changes you make in Flrig's frequency.