Hi,

Was wondering if a wideband preamp might have a better noise figure if
its input impedance is greater than the antenna's. It also has a
couple of head to tail 1N4148 diodes across the input for protection.
Would removing the diodes extend the bandwidth or is the extra 8 pF
stray diode capacitance become lumped in with the coax capacitance?
Surely the preamp input has some capacitance too, so how does this
affect the voltage delivered? Please, answer at your convenience.

A*s*i*m*o*v

.... Ok, I pulled the pin. Now what?.....Hey! Where are you all going?