On Sun, Feb 5, 2023 at 12:58 AM, GM0HUU Steve wrote:
Has anyone got any suggestions for a pre-amp circuit?
Steve,
If it has to fit inside then Andy's suggestion is probably the easiest.
I am intending a larger version of a QDX, I favour Nortons. Look here down to High Dynamic Range RF Amp.
I've built quite few of these, they seem to work well. In my high power VHF signal area a LPF may help - but the QDX has one..
73 Alan G4ZFQ
