I have a Raspberry Pi 3B and have two Generic RTL-SDR dongles attached. I have set these up to both operate, and they are sending tcp streams - I can connect to their respective individual ports with gqrx on my mac, and they work. The plan is to run any apps to use these on my Mac Book Pro. I have installed GNU Radio and ergo Gnu Radio Companion on the Macbook pro - but... By default it doesn't seem to come with a TCP receiver/source.. ANy ideas where I go looking for one of these - nothing obvious in google world, but I might just be using the wrong words or have sacrificed insufficient chickens.