Hello! Although using vhf transceivers isn't something new to me, I'm trying to get a little bit deeper into radio amateur things. So I decided to make my first VHF preamp in order to start listening to more stations than those my receiver can capture right now by itself. I found an excellent wideband preamp, specifically this one:

PreAmp

But I have a major problem. I don't know anything about grounding techniques. I mean as I see it, there are three grounds there. The DC ground that goes to the power supply, the input ground and the output ground. And then, there is the chassis where BNCs are attached to it. Doesn't that make an input-output ground connection by itself? I'm a little bit confused here...Any help would be much appreciated!

 

Anybody please?

 

Hello,

Have a look at the following PDF:
rf_proto-1.pdf

It will explain how to deal with RF prototyping.

Bertus

 

Thank you very much for your reply bertus! It seems an amazing PDF with lots of info!I'm reading it right now and I will come back with any possibile questions I may have. Thanks again for the help!