Hi RF gurus!
I've been working on digitizing and manipulating the AF signals of my transceivers with my PC sound card and .NET programming. I'll be getting a SoftRock receiver shortly and will be working on the I/Q signals instead, probably with a 96 KHz BW.
I'm REALLY interested now in getting a 100 MHz A/D converter and digitizing DC through 10m, then processing the I/Q components with my own program. I like the Perseus radio and seeing the full spectrum on the display!
My question is: What simple front end circuitry would you recommend that I put between the antenna feed and the A/D converter? I'm thinking an RF choke and a preamp. Of course, the preamp will only be used to scale to the dynamic range of the A/D.
Thanks for the help,