Catsync & KiwiSDR
WHAT IS CATSYNC AND HOW CAN IT BE HELPFUL TO YOU?

CATSync is a standalone program that allows you to syncronize public WebSDR receivers with your real rig (connected via CAT control to your computer). It supports the classical WebSDR as well as KiwiSDR.
You can listen to a KiwiSDR at the same time as you listen to your transceiver, the sound of the kiwi comes through the computer audio output.
This means that you change frequency on a KiwiSDR receiver online simultaneously as the frequency of your transceiver. A KiwiSDR gives you a beautiful waterfall on your computer screen showing the “busy” frequencies.
There is another nice feature and that is Omnirig for CAT control. Catsync, Log4om2 & JTDX (WSJT-X) are all using Omnirig. When using this configuration together with your radio, you do NOT need a com port splitter. Nice isn’t it!?. Log4OM2 for logging, JTDX for your digital modes, and Catsync to see the KiwiSDR and the waterfall.
So should need a KiwiSDR nearby as where you live, you can listen to most readeable signal. When you have QRM at home but not on the KiwiSDR, you listen to that one instead. Sometimes the signals are better readeable through the Kiwi and sometimes better at home, nice isn’t?! Especially when you have a long distance DX you don’t want to miss!
Download Sites:
Download CATSync Demo V1.22 Installer here (GoogleDrive)

Not using above setup you probably need to split your physical com port of your transceiver to simultaneously run programs like Ham Radio deLuxe (does not support Omnirig and is slow with a filled database, and costs money).
HOW SPLITTING PHYSICAL COM PORT

A com port splitter program allows you to split one physical COM port into several virtual COM ports. Each virtual serial port appears as the exact copy of a hardware COM port. Thus, several communications applications can exchange data with serial device connected to the physical COM port simultaneously.
COMPORT SPLITTER WHICH ONE?
I recommend TCP COM Bridge which I am using. Another alternative is VPSE. With this program you only create one virtual port and all programs are directed to this one. TCP COM Bridge feels more stable, easier to use, that’s why I am was using it before I started using logbook Log4om2.
