I think you are correct Terry.............take a look at my prior responses.
This will illustrate the approach I have chosen. It should work out well.

Pete

wrote in message
ups.com...

Pete KE9OA wrote:
I am finishing up the MW receiver..............anyway, I have a high
impedance antenna input in addition to the 50 ohm input. With this
type of
receiver is the high impedance input enough, or would interested
parties
rather have both inputs.
The reason I am asking this is because my employer would like to have
all
jacks mounted to the main PC board. The only thing I have been able
to find
so far has been a right angle BNC connector for the 50 ohm input.
Opinions welcomed!

Pete

Add a switch to change the BNC from low-Z to high-Z.
Include a BNC to dual banana adaptor.
The slight notch in impedence shouldn't matter.
And I would bet that any effect on reception could NOT be measured.

Terry