FreeDV + SmartSDR / Flex6400 + MacBook

English setting information follows after the top comments in Japanese.

いつもいろいろと教えて頂いているJA1KIH酒井OMに、FreeDVが面白いよ、と聞きました。FreeDVで検索して調べてもらえば、お分かりになりますが、Digital音声でのQSOのデコードソフトでアナログ音声信号をデジタル化して無線機に送りSSBモードで交信、という仕組みです。HFでも雑音無くPhoneで交信できるということでした。小パワーでもFT8のように遠くとQSO出来るのかも、と思い、設定を試みました。ただ、私の設備とPC環境だと、リグはTS-2000SかFT-2000D、PCはHPのWorksstationにWindows10というのが現状のスタンダードなのですが、今年買ったMacBookAirで、デジタルモードで活用しているFlex6400をリモート運用、ということをやってみようと思います。

＜もしかすると海外からの検索もあるかと思い、以下、英語です＞

(1)Station equipment and software
RIG            Flex6400
Software    SmartSDR 2.9.45 
FreeDV      v2.0.0
PC             MacBook Air (M3)  
OSX          Sequoia 15.2

(2)Before start setting

Before starting, audio router software (two cables:TX&RX)  to connect between SmartSDR(DAX) and FreeDV is necessary. I am using VB-Cable A/B, which is shareware software.
<VB-Cable (Free software)  has only one cable and you can try for receiver only>

>>VB-Cable A/B (version 1.0.8) :Just start. No setting necessary. VB-Cable A and VB-Cable B appears in you Audio INPUT/OUTPUT

3)SmartSDR settings
<Radio Panel> Turn-on DAX  in both TX and RX (set channel as you like)
<DAX Streaming setting>  Radio / DAX   to open DAX window and set as below
          Input Device.  VB-Audio B
          Output Device VB-Audio A
             *Be sure to turn-on Enable DAX  of both TX and RX streams

<CAT setting> I was not able to make the original CAT in the SmartSDR, and I am using xCAT. The setting of the xCAT is as below.

4)FreeDV  settings       Go to Setting / Easy setting / 

Step 1 set audio (SP and MIC ) in this page at first and go to Advanced.
The VB-A and VB-B should be set as 'Computer from Radio' in the receiver TAB and 'Computer to Radio' in the Transmitter TAB. 

Step2  choose Hamlib CAT Control and choose FlexRadio 6xxx, set port as 127.0.0.1:5011.

>>MacBookAir : No settings necessary. 
Order of starting application is 1)VB-Audio 2)SSDR 3)xCAT 4)FreeDV                     Microphone & Speaker should be prpared if you like external equipment such as                 bluetooth headset.

When you start the FreeDV by clicking Start (Right-Top), the Waterfall will start like below. The audio level should be properly adjusted at DAX TAB / RX setting / Gain slider.

Your TX can be started by clicking PTT. (SmartSDR TX managed)