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FLEX-6000 Signature Series - SmartSDR for Windows Software User’s Guide

Page 131

31.3 CONFIGURING A PTT (KEYING) INTERFACE

To key the radio for transmitting digital modes either a CAT connection or serial port PTT interface

can be used. The most common method is to use CAT commands to key and un-key the radio, but

either a physical or virtual serial port can be used as well.

For this procedure, SmartSDR CAT will be used to key and un-key the radio via the SmartSDR CAT

protocol. SmartSDR CAT will also properly translate Kenwood CAT commands too. Please refer to

the SmartSDR CAT Software User’s Guide for additional information regarding the CAT protocol.

31.3.1 PTT Override when Operating Digital Modes

When operating in a non DIGx mode, using a hardware PTT such as the RCA PTT input on the back

panel will override the input of DAX. This feature allows the user to override the DAX input with a

PTT switch connected directly to the radio. Also, see section 31.1.6, DAX TX Channel and

Microphone Interaction for additional information about coordinating the use of microphones and

the DAX TX channel.

31.4 CONFIGURING THIRD-PARTY DIGITAL MODE PROGRAMS

Below are instructions for configuring third-party digital mode programs for use with FLEX-6000.

31.4.1 Setting up Fldigi

With most digital mode programs, you must configure the audio setup and CAT. Fldigi is no different.

For this example, CAT will be configured first and then the audio setup.

NOTE: For the remainder of this example it is assumed that you have Fldigi installed on your

computer. The download URL is: http://www.w1hkj.com/download.html

The SmartSDR-SliceA.xml RigCAT file is also needed. It can be downloaded by doing a right click and

a “save as” on it from http://www.w1hkj.com/xmlarchives.html

Please review the Fldigi user documentation for installation instructions.

FlexRadio Systems FLEX-6000 Signature Series User Manual

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