YT1DL Only Digital

Logger32 and GSDR setup

Logger32 is very popular general logging software from Bob Furzer, K4CY and can be easy set to operate together with GenesisSDR. You can download it from

First we need to set virtual com ports. In this case we need three couples !! You can do it via N8VB Virtual COM port software or using some of newer packages like Virtual Serial Port Driver by Eltima or VSP Manager by K5FR (my choice). First virtual pair is for PTT control, second for CAT control and third for virtual Logger32 keyer or CWX.


Next, GSDR settings. In CAT control settings menu set two com ports for CAT and PTT control ( see picture). If you set virtual ports like me you will put COM16 for PTT controll and COM17 for CAT.


In DSP/Keyer menu set COM18 as Keyer port (DSR as DOTT/PTT) and remove "check" in front of Lambic option.


At last, in Genesis config menu remove "chack" in front of lambic option to ! (Internal G59 keyer disabled, but if you need to use it in parallel with Logger32 you can live it chacked).


Now Logger32 side setup. First, we will setup CAT system. Click at "SETUP" in Logger32 default menu. Whole menu will change shape to new setup mode.


In new setup menu mode click at RADIO/RADIO 1 CONFIGURATION


You will see new CAT setup screen like this:


Set CAT com port to COM7 and radio as PowerSDR. Other parameters like on my picture. When you leave this menu check radio frequency in main Logger32 log input form. It must be synchronized with GSDR. If it is not, restart Logger32 to pick up new settings.

Second, CW keyer settings. Click on toolbar key icon:


This will open new CW machine screen:


Click on CONFIG and set SOFTWARE as keyer. In same, CONFIG menu, click on KEYER SETUP and new window will be open. There is two important settings on this screen. Set Comm8 as keyer com port and check "Use dedicated serial port for CW". You can set other parameters according your taste and skill. NOTE: you must set BK mode and receive delay in GSDR software!


Something more advanced. You can use internal Logger32 CW sidetone but be careful !! If you check last option on screen (Sidetone) Logger32 will use your (Windows) default sound card to generate sidetone !!! So, this must NOT be your sound card that you use for GSDR or for digimode software !!! That lead us to conclusion that you must use separate sound card for this sidetone and set it as a default in Windows. I have three different sound cards in my computer, so I check this option, but if you not sure what is your default sound card or you have only one live this option unchecked. Later, when you become familiar with this settings you can try and experiment with this sidetone.


For the final, internal MMVARY engine setup. Click at "Sound card data window" icon in default Logger32 tool bar.


This will open MMVARY Engine module. In this window go to Settings menu and then click at MMVARY SETTINGS / SOUND CARD SETUP.


Select "Virtual cable 2" for input sound card and "Virtual cable 1" for output sound card. Could be necessary to restart Logger32 after this settings to see signals on MMVARY display.


In my case, sound level from MMVARY to VAC cable and GSDR was to high so I must use VAC mixer to reduced it. It should be possible to reduce this level direct from MMVARY engine module but for some unknown reason that was not functional with my hardware. So, I open default Windows mixer (double click at speaker icon in trey) choose VAC1 from options menu and set WAWE output to about one half (see picture under). This was necessary in my case but maybe it would not at different hardware.


At last, we need to set MMVARY PTT options. Go to MMVARY SETTINGS / RADIO PTT OPTIONS and look at new window that will be open. Pay attention only to Radio 1 settings. In KEYING OPTIONS set "PTT by serial port", for PTT keying line set "RTS Keying Only" and for Serial port set COM6. Again, MMVARY or Logger32 restart maybe needed.


This setting look very complicated (and it is, believe me) because there is no centralized setup menu in Logger32. It was my pleasure to set this great logging software. It has one great advantage. You can set it for two radios in the same time. One settings for your Genesis G59 or for some else QRP and second settings for your ordinary equipment. That leave you a freedom of equipment choice without need to change familiar logging software. Same settings and one log for two radios!